For the 2026–2027 academic year, this page covers ultrasound-guided blocks thesis topics in Anaesthesiology for MD and DNB residents across upper limb, lower limb, truncal, abdominal wall, thoracic, chest wall, head and neck, paraspinal, lumbar, sacral, obstetric and paediatric regional anaesthesia. The topics include practical anatomical, observational, analytical and prospective comparative designs using routine ultrasound equipment, standard regional anaesthesia techniques and immediate perioperative outcomes that can be completed within one thesis period. Residents searching for ultrasound-guided regional anaesthesia research topics can use these areas to develop a focused ultrasound-guided blocks thesis protocol or regional anaesthesia synopsis with reproducible sonoanatomical, procedural and clinical endpoints.
Last reviewed and updated: August 2026 · 2026–27 admissions
Section 1: Ultrasound-Guided Upper Limb Blocks
- Ultrasonographic Assessment of the Relationship Between Brachial Plexus Anatomy and Success of Ultrasound-Guided Supraclavicular Brachial Plexus Block: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Supraclavicular and Infraclavicular Brachial Plexus Blocks for Upper Limb Surgery: A Prospective Comparative Study
- Association Between Ultrasound-Measured Depth of the Brachial Plexus and Needle Insertion Depth During Supraclavicular Block: A Cross-Sectional Analytical Study
- Comparison of Single-Injection and Multiple-Injection Techniques for Ultrasound-Guided Supraclavicular Brachial Plexus Block: A Prospective Comparative Study
- Ultrasonographic Evaluation of Anatomical Variations of the Brachial Plexus in the Supraclavicular Region Among Adult Surgical Patients: A Cross-Sectional Study
- Association of Body Mass Index With Ultrasound Image Quality and Performance Characteristics of Supraclavicular Brachial Plexus Block: A Cross-Sectional Observational Study
- Comparison of In-Plane and Out-of-Plane Needle Approaches for Ultrasound-Guided Supraclavicular Brachial Plexus Block: A Prospective Comparative Study
- Ultrasound-Guided Supraclavicular Brachial Plexus Block: Association Between Local Anaesthetic Spread Pattern and Immediate Block Success in Upper Limb Surgery
- Comparison of Ultrasound-Guided Supraclavicular Brachial Plexus Block Using Corner-Pocket and Neural-Cluster Injection Techniques: A Prospective Comparative Study
- Ultrasonographic Measurement of First Rib-to-Plexus Distance and Its Association With Technical Difficulty During Supraclavicular Brachial Plexus Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Infraclavicular and Axillary Brachial Plexus Blocks for Forearm and Hand Surgery: A Prospective Comparative Study
- Ultrasound-Guided Infraclavicular Brachial Plexus Block: Association Between Cord Visualization and Immediate Sensory Block Success: A Cross-Sectional Analytical Study
- Ultrasonographic Assessment of Axillary Artery Depth and Its Relationship With Performance Time of Infraclavicular Brachial Plexus Block: A Cross-Sectional Study
- Comparison of Lateral Sagittal and Costoclavicular Approaches to Ultrasound-Guided Infraclavicular Brachial Plexus Block: A Prospective Comparative Study
- Ultrasonographic Assessment of Brachial Plexus Cord Arrangement in the Infraclavicular Region: A Cross-Sectional Anatomical Study in Surgical Patients
- Comparison of Ultrasound-Guided Axillary Brachial Plexus Block With and Without Musculocutaneous Nerve Blockade: A Prospective Comparative Study
- Association Between Number of Ultrasound-Identified Terminal Nerves and Completeness of Axillary Brachial Plexus Block: A Cross-Sectional Observational Study
- Comparison of Perivascular and Perineural Injection Techniques for Ultrasound-Guided Axillary Brachial Plexus Block: A Prospective Comparative Study
- Ultrasonographic Evaluation of Radial, Median and Ulnar Nerve Cross-Sectional Areas at the Axilla in Adult Surgical Patients: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Median, Ulnar and Radial Nerve Blocks at the Forearm With Axillary Brachial Plexus Block for Hand Surgery: A Prospective Comparative Study
- Association Between Ultrasound-Measured Median Nerve Cross-Sectional Area and Local Anaesthetic Volume Requirement for Successful Forearm Nerve Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Intercostobrachial Nerve Block With Local Infiltration for Tourniquet Pain During Upper Limb Surgery: A Prospective Comparative Study
- Ultrasonographic Identification of the Musculocutaneous Nerve in the Coracobrachialis Muscle and Its Anatomical Variations: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Superior Trunk Block and Interscalene Brachial Plexus Block for Shoulder Surgery: A Prospective Comparative Study
- Association Between Ultrasound-Measured Distance of the Brachial Plexus From the Skin and Technical Difficulty of Interscalene Block: A Cross-Sectional Observational Study
- Ultrasonographic Assessment of Phrenic Nerve Visibility During Interscalene Brachial Plexus Block: A Cross-Sectional Study
- Comparison of Low-Volume and Conventional-Volume Ultrasound-Guided Interscalene Brachial Plexus Block Using Immediate Sensory and Motor Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Evaluation of Cervical Nerve Root Anatomy Relevant to Interscalene Brachial Plexus Block: A Cross-Sectional Study
- Association Between Ultrasound Image Quality and Number of Needle Redirections During Upper Limb Peripheral Nerve Blocks: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Selective Peripheral Nerve Blocks and Brachial Plexus Block for Short-Duration Hand Procedures: A Prospective Comparative Study
Section 2: Ultrasound-Guided Lower Limb Blocks
- Comparison of Ultrasound-Guided Femoral Nerve Block and Fascia Iliaca Compartment Block for Immediate Analgesia in Patients With Fracture of the Femur: A Prospective Comparative Study
- Association Between Ultrasound-Measured Femoral Nerve Depth and Technical Difficulty of Femoral Nerve Block: A Cross-Sectional Analytical Study
- Ultrasonographic Assessment of Femoral Nerve Position Relative to the Femoral Artery in Adult Surgical Patients: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Femoral Nerve Block Using In-Plane and Out-of-Plane Needle Approaches: A Prospective Comparative Study
- Association Between Local Anaesthetic Spread Around the Femoral Nerve and Immediate Sensory Block Success During Ultrasound-Guided Femoral Nerve Block: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Femoral Nerve Block and Adductor Canal Block for Knee Procedures Using Immediate Sensory and Motor Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Saphenous Nerve and Its Relationship With the Femoral Artery in the Adductor Canal: A Cross-Sectional Anatomical Study
- Association Between Adductor Canal Depth and Technical Difficulty of Ultrasound-Guided Adductor Canal Block: A Cross-Sectional Analytical Study
- Comparison of Proximal and Distal Ultrasound-Guided Adductor Canal Block for Knee Surgery Using Immediate Sensory Block Characteristics: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Adductor Canal Block and Femoral Triangle Block for Knee Surgery: A Prospective Comparative Study
- Ultrasonographic Assessment of Anatomical Variations of the Femoral Artery and Saphenous Nerve Within the Adductor Canal: A Cross-Sectional Study
- Association Between Local Anaesthetic Spread Pattern in the Adductor Canal and Immediate Saphenous Nerve Block Success: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Fascia Iliaca Compartment Block Using Suprainguinal and Infrainguinal Approaches for Lower Limb Surgery: A Prospective Comparative Study
- Ultrasonographic Measurement of Fascia Iliaca Depth and Its Association With Body Mass Index in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Ultrasound-Observed Cranial Spread of Local Anaesthetic and Immediate Analgesic Effect of Suprainguinal Fascia Iliaca Compartment Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Fascia Iliaca Compartment Block and Pericapsular Nerve Group Block for Patients With Proximal Femur Fractures: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Iliopsoas Muscle, Iliopsoas Tendon and Femoral Nerve Relevant to Pericapsular Nerve Group Block: A Cross-Sectional Anatomical Study
- Association Between Ultrasound-Measured Distance From Skin to Iliopsoas Plane and Performance Characteristics of Pericapsular Nerve Group Block: A Cross-Sectional Study
- Comparison of Different Needle Approaches for Ultrasound-Guided Pericapsular Nerve Group Block Using Immediate Block Characteristics: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Pericapsular Nerve Group Block and Femoral Nerve Block for Positioning During Spinal Anaesthesia in Patients With Hip Fractures: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Sciatic Nerve at the Subgluteal Region in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Sciatic Nerve Depth and Body Mass Index During Ultrasound-Guided Subgluteal Sciatic Nerve Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Subgluteal and Popliteal Approaches to Sciatic Nerve Block for Below-Knee Surgery: A Prospective Comparative Study
- Ultrasonographic Assessment of the Level of Sciatic Nerve Bifurcation in the Popliteal Fossa: A Cross-Sectional Anatomical Study
- Association Between Level of Sciatic Nerve Bifurcation and Performance Characteristics of Ultrasound-Guided Popliteal Sciatic Nerve Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Popliteal Sciatic Nerve Block Before and After Bifurcation of the Sciatic Nerve: A Prospective Comparative Study
- Comparison of Single-Injection and Separate Tibial and Common Peroneal Nerve Injection Techniques for Ultrasound-Guided Popliteal Block: A Prospective Comparative Study
- Ultrasonographic Evaluation of Tibial and Common Peroneal Nerve Cross-Sectional Areas in the Popliteal Region: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Ankle Block and Popliteal Sciatic Nerve Block for Distal Foot Procedures Using Immediate Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Assessment of the Tibial, Deep Peroneal, Superficial Peroneal and Sural Nerves Relevant to Ultrasound-Guided Ankle Block: A Cross-Sectional Anatomical Study
Section 3: Ultrasound-Guided Truncal and Abdominal Wall Blocks
- Comparison of Ultrasound-Guided Transversus Abdominis Plane Block and Local Wound Infiltration for Immediate Postoperative Analgesia Following Lower Abdominal Surgery: A Prospective Comparative Study
- Ultrasonographic Measurement of Abdominal Wall Layer Thickness Relevant to Transversus Abdominis Plane Block in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Body Mass Index and Ultrasound Visualization Quality During Transversus Abdominis Plane Block: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Lateral and Posterior Transversus Abdominis Plane Blocks for Lower Abdominal Surgery: A Prospective Comparative Study
- Association Between Ultrasound-Observed Local Anaesthetic Spread and Immediate Sensory Dermatomal Coverage After Transversus Abdominis Plane Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Subcostal and Lateral Transversus Abdominis Plane Blocks for Upper Abdominal Surgery: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Three Muscular Layers of the Anterolateral Abdominal Wall and Their Anatomical Variations: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Transversus Abdominis Plane Block and Ilioinguinal-Iliohypogastric Nerve Block for Inguinal Hernia Surgery: A Prospective Comparative Study
- Ultrasonographic Assessment of Ilioinguinal and Iliohypogastric Nerve Visibility in Adult Patients: A Cross-Sectional Anatomical Study
- Association Between Identification of Ilioinguinal and Iliohypogastric Nerves on Ultrasound and Immediate Block Success: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Ilioinguinal-Iliohypogastric Nerve Block and Surgical Site Infiltration for Inguinal Procedures: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Rectus Sheath and Epigastric Vessels Relevant to Rectus Sheath Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Rectus Sheath Block and Local Wound Infiltration for Midline Abdominal Surgery: A Prospective Comparative Study
- Association Between Rectus Muscle Thickness and Local Anaesthetic Spread During Ultrasound-Guided Rectus Sheath Block: A Cross-Sectional Analytical Study
- Comparison of Bilateral Ultrasound-Guided Rectus Sheath Block and Transversus Abdominis Plane Block for Midline Infraumbilical Procedures: A Prospective Comparative Study
- Ultrasonographic Evaluation of the External Oblique Intercostal Plane in Adult Surgical Patients: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided External Oblique Intercostal Plane Block and Subcostal Transversus Abdominis Plane Block for Upper Abdominal Surgery: A Prospective Comparative Study
- Association Between Ultrasound-Observed Local Anaesthetic Spread in the External Oblique Intercostal Plane and Immediate Dermatomal Coverage: A Cross-Sectional Study
- Ultrasonographic Assessment of the Transversalis Fascia Plane and Adjacent Structures Relevant to Transversalis Fascia Plane Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Transversalis Fascia Plane Block and Ilioinguinal-Iliohypogastric Nerve Block for Lower Abdominal Surgery: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Quadratus Lumborum Block and Transversus Abdominis Plane Block for Abdominal Surgery Using Immediate Analgesic Outcomes: A Prospective Comparative Study
- Ultrasonographic Measurement of Quadratus Lumborum Muscle Depth and Thickness in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Body Mass Index and Sonoanatomical Visibility During Ultrasound-Guided Quadratus Lumborum Block: A Cross-Sectional Observational Study
- Comparison of Lateral and Posterior Ultrasound-Guided Quadratus Lumborum Blocks Using Immediate Sensory Distribution: A Prospective Comparative Study
- Comparison of Posterior and Transmuscular Ultrasound-Guided Quadratus Lumborum Blocks Using Immediate Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Thoracolumbar Fascia Relevant to Quadratus Lumborum Block: A Cross-Sectional Anatomical Study
- Association Between Local Anaesthetic Spread Around the Quadratus Lumborum Muscle and Immediate Dermatomal Sensory Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Quadratus Lumborum Block and Local Wound Infiltration for Lower Abdominal Procedures: A Prospective Comparative Study
- Ultrasonographic Assessment of Lumbar Fascial Planes Relevant to Abdominal Wall Regional Anaesthesia: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Fascial Plane Blocks Performed With Different Patient Positions for Abdominal Surgery: A Prospective Comparative Study
Section 4: Ultrasound-Guided Thoracic and Chest Wall Blocks
- Comparison of Ultrasound-Guided Erector Spinae Plane Block and Thoracic Paravertebral Block for Breast Surgery Using Immediate Perioperative Analgesic Outcomes: A Prospective Comparative Study
- Ultrasonographic Measurement of Erector Spinae Muscle and Transverse Process Depth at the Thoracic Level: A Cross-Sectional Study
- Association Between Body Mass Index and Sonoanatomical Visibility During Thoracic Erector Spinae Plane Block: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Erector Spinae Plane Block at Different Thoracic Vertebral Levels for Breast Surgery: A Prospective Comparative Study
- Association Between Ultrasound-Observed Local Anaesthetic Spread During Erector Spinae Plane Block and Immediate Dermatomal Sensory Distribution: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Erector Spinae Plane Block and Serratus Anterior Plane Block for Breast Surgery: A Prospective Comparative Study
- Ultrasonographic Evaluation of Thoracic Paravertebral Space Dimensions in Adult Surgical Patients: A Cross-Sectional Anatomical Study
- Association Between Paravertebral Space Depth and Technical Difficulty of Ultrasound-Guided Thoracic Paravertebral Block: A Cross-Sectional Study
- Comparison of In-Plane and Out-of-Plane Needle Approaches for Ultrasound-Guided Thoracic Paravertebral Block: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Thoracic Paravertebral Block and Intercostal Nerve Block for Unilateral Breast Procedures: A Prospective Comparative Study
- Ultrasonographic Assessment of Pleural Depth and Its Relationship With Thoracic Wall Thickness in Patients Undergoing Regional Anaesthesia: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Superficial and Deep Serratus Anterior Plane Blocks for Breast and Chest Wall Procedures: A Prospective Comparative Study
- Ultrasonographic Measurement of Serratus Anterior Muscle Thickness and Thoracodorsal Artery Position Relevant to Serratus Anterior Plane Block: A Cross-Sectional Study
- Association Between Local Anaesthetic Spread in the Serratus Anterior Plane and Immediate Sensory Coverage of the Lateral Chest Wall: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Serratus Anterior Plane Block and Intercostal Nerve Block for Chest Wall Surgery: A Prospective Comparative Study
- Ultrasonographic Evaluation of Intercostal Nerve and Intercostal Vessel Anatomy Relevant to Ultrasound-Guided Intercostal Nerve Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Single-Level and Multilevel Intercostal Nerve Blocks for Unilateral Chest Wall Procedures: A Prospective Comparative Study
- Association Between Intercostal Space Width and Technical Performance of Ultrasound-Guided Intercostal Nerve Block: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Pectoral Nerve Plane Block and Serratus Anterior Plane Block for Breast Surgery: A Prospective Comparative Study
- Ultrasonographic Evaluation of Pectoralis Major, Pectoralis Minor and Serratus Anterior Fascial Planes Relevant to Pectoral Nerve Plane Block: A Cross-Sectional Study
- Association Between Ultrasound-Observed Local Anaesthetic Spread During Pectoral Nerve Plane Block and Immediate Sensory Distribution: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Pectoral Nerve Plane Block and Local Infiltration for Breast-Conserving Surgery: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Pectoral Nerve Plane Block and Erector Spinae Plane Block for Modified Radical Mastectomy: A Prospective Comparative Study
- Ultrasonographic Assessment of the Pectoral Branch of the Thoracoacromial Artery Relevant to Pectoral Plane Blocks: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Parasternal Intercostal Plane Block and Pectoral Nerve Plane Block for Medial Breast Procedures: A Prospective Comparative Study
- Ultrasonographic Evaluation of Internal Thoracic Vessels and Parasternal Intercostal Spaces Relevant to Parasternal Plane Block: A Cross-Sectional Study
- Association Between Parasternal Tissue Depth and Technical Difficulty of Ultrasound-Guided Parasternal Intercostal Plane Block: A Cross-Sectional Analytical Study
- Comparison of Superficial and Deep Ultrasound-Guided Parasternal Intercostal Plane Blocks Using Immediate Sensory Distribution: A Prospective Comparative Study
- Ultrasonographic Assessment of Chest Wall Thickness at Common Regional Anaesthesia Injection Sites: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Chest Wall Fascial Plane Blocks Based on Procedure Time, Needle Visibility and Immediate Block Success: A Prospective Comparative Study
Section 5: Ultrasound-Guided Head, Neck and Airway-Related Blocks
- Ultrasonographic Evaluation of the Superficial Cervical Plexus and Adjacent Structures in Adult Surgical Patients: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Superficial Cervical Plexus Block and Landmark-Guided Superficial Cervical Plexus Block for Neck Procedures: A Prospective Comparative Study
- Association Between Sternocleidomastoid Muscle Thickness and Technical Characteristics of Ultrasound-Guided Superficial Cervical Plexus Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Superficial and Intermediate Cervical Plexus Blocks Using Immediate Sensory Distribution: A Prospective Comparative Study
- Ultrasonographic Assessment of the Greater Auricular Nerve in Adult Patients: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Greater Auricular Nerve Block and Local Infiltration for Minor Ear Procedures: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Greater Occipital Nerve and Occipital Artery in Adult Patients: A Cross-Sectional Study
- Association Between Greater Occipital Nerve Depth and Body Mass Index: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided and Landmark-Guided Greater Occipital Nerve Block Using Immediate Sensory Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Supraorbital and Supratrochlear Nerves Relevant to Scalp Block: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Scalp Nerve Block and Anatomical Landmark-Guided Scalp Block for Neurosurgical Procedures: A Prospective Comparative Study
- Association Between Ultrasound Identification of Scalp Nerves and Immediate Block Success: A Cross-Sectional Observational Study
- Ultrasonographic Assessment of the Infraorbital Nerve and Infraorbital Foramen in Adult Patients: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Infraorbital Nerve Block and Landmark-Guided Infraorbital Nerve Block Using Immediate Sensory Outcomes: A Prospective Comparative Study
- Ultrasonographic Assessment of the Mental Nerve and Mental Foramen Relevant to Regional Anaesthesia: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Mental Nerve Block and Anatomical Landmark-Guided Mental Nerve Block: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Superior Laryngeal Nerve Region and Adjacent Vascular Structures: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided and Landmark-Guided Superior Laryngeal Nerve Block for Airway Anaesthesia: A Prospective Comparative Study
- Association Between Thyrohyoid Membrane Depth and Technical Difficulty of Ultrasound-Guided Superior Laryngeal Nerve Block: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Superior Laryngeal Nerve Block and Topical Airway Anaesthesia Using Immediate Airway Tolerance During Awake Airway Procedures: A Prospective Comparative Study
- Ultrasonographic Assessment of the Cricothyroid Membrane and Surrounding Structures in Adult Patients: A Cross-Sectional Study
- Association Between Neck Circumference and Ultrasound-Measured Cricothyroid Membrane Depth: A Cross-Sectional Analytical Study
- Comparison of Palpation and Ultrasound Identification of the Cricothyroid Membrane in Adult Surgical Patients: A Prospective Comparative Study
- Ultrasonographic Evaluation of Anterior Neck Soft Tissue Thickness at Common Airway Landmarks: A Cross-Sectional Study
- Association Between Body Mass Index and Ultrasound Visualization of Airway Structures Relevant to Regional Airway Anaesthesia: A Cross-Sectional Observational Study
- Ultrasonographic Assessment of the Recurrent Laryngeal Nerve Region in Adult Patients Undergoing Neck Surgery: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Bilateral Superficial Cervical Plexus Block and Local Infiltration for Thyroid Surgery Using Immediate Analgesic Outcomes: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Superficial Cervical Plexus Block and Intermediate Cervical Plexus Block for Thyroid Surgery: A Prospective Comparative Study
- Association Between Local Anaesthetic Spread During Ultrasound-Guided Cervical Plexus Block and Immediate Dermatomal Sensory Distribution: A Cross-Sectional Analytical Study
- Ultrasonographic Assessment of Anatomical Variations Relevant to Ultrasound-Guided Head and Neck Peripheral Nerve Blocks: A Cross-Sectional Study
Section 6: Ultrasound-Guided Paraspinal, Lumbar and Sacral Blocks
- Ultrasonographic Evaluation of Lumbar Erector Spinae Muscle Thickness and Transverse Process Depth in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Body Mass Index and Technical Difficulty of Ultrasound-Guided Lumbar Erector Spinae Plane Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Lumbar Erector Spinae Plane Block and Quadratus Lumborum Block for Lower Abdominal Procedures: A Prospective Comparative Study
- Association Between Local Anaesthetic Spread During Lumbar Erector Spinae Plane Block and Immediate Sensory Dermatomal Distribution: A Cross-Sectional Observational Study
- Ultrasonographic Assessment of the Multifidus Muscle and Intertransverse Structures Relevant to Lumbar Paraspinal Blocks: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Erector Spinae Plane Block at Different Lumbar Levels Using Immediate Sensory Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Lumbar Plexus Region and Psoas Major Muscle in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Psoas Major Muscle Depth and Body Mass Index During Ultrasound Examination for Lumbar Plexus Block: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Assisted Lumbar Plexus Block and Ultrasound-Guided Fascia Iliaca Compartment Block for Lower Limb Surgery: A Prospective Comparative Study
- Ultrasonographic Assessment of Anatomical Variations in the Lumbar Plexus Region Relevant to Regional Anaesthesia: A Cross-Sectional Anatomical Study
- Ultrasonographic Evaluation of the Sacral Hiatus in Adult Patients Undergoing Surgery: A Cross-Sectional Study
- Association Between Body Mass Index and Ultrasound Visualization of the Sacral Hiatus: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided and Landmark-Guided Caudal Epidural Block Based on First-Pass Success and Procedure Characteristics: A Prospective Comparative Study
- Ultrasonographic Measurement of Sacrococcygeal Membrane Depth and Sacral Canal Dimensions in Adult Patients: A Cross-Sectional Study
- Association Between Sacral Hiatus Dimensions and Technical Difficulty of Ultrasound-Guided Caudal Block: A Cross-Sectional Observational Study
- Comparison of Longitudinal and Transverse Ultrasound Approaches for Identification of the Sacral Hiatus: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Posterior Sacral Foramina Relevant to Sacral Nerve Blocks: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Sacral Nerve Root Block and Caudal Block for Selected Perineal Procedures Using Immediate Sensory Outcomes: A Prospective Comparative Study
- Ultrasonographic Assessment of the Piriformis Muscle and Sciatic Nerve Relationship in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Piriformis Muscle Thickness and Sciatic Nerve Depth in the Gluteal Region: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Parasacral and Subgluteal Sciatic Nerve Blocks Using Immediate Block Characteristics: A Prospective Comparative Study
- Ultrasonographic Evaluation of the Superior Gluteal Artery and Sciatic Nerve Relationship Relevant to Deep Gluteal Regional Anaesthesia: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Posterior and Anterior Approaches to the Lumbar Plexus Region Based on Sonoanatomical Visibility and Procedure Characteristics: A Prospective Comparative Study
- Association Between Lumbar Paraspinal Muscle Thickness and Ultrasound Image Quality During Regional Anaesthesia: A Cross-Sectional Observational Study
- Ultrasonographic Assessment of Lumbar Transverse Process Anatomy Relevant to Fascial Plane Blocks: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Lumbar Fascial Plane Block and Local Infiltration for Lumbar Spine Procedures Using Immediate Analgesic Outcomes: A Prospective Comparative Study
- Ultrasonographic Measurement of the Distance From Skin to Thoracolumbar Fascia in Adult Surgical Patients: A Cross-Sectional Study
- Association Between Thoracolumbar Fascia Depth and Needle Advancement Distance During Ultrasound-Guided Fascial Plane Blocks: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Retrolaminar Block and Erector Spinae Plane Block Using Immediate Sensory Distribution: A Prospective Comparative Study
- Ultrasonographic Assessment of Paraspinal Sonoanatomy Relevant to Retrolaminar and Erector Spinae Plane Blocks: A Cross-Sectional Anatomical Study
Section 7: Ultrasound-Guided Blocks in Obstetric, Paediatric and Miscellaneous Surgical Populations
- Comparison of Ultrasound-Guided Transversus Abdominis Plane Block and Local Wound Infiltration Following Caesarean Delivery Using Immediate Postoperative Analgesic Outcomes: A Prospective Comparative Study
- Ultrasonographic Measurement of Abdominal Wall Thickness in Parturients and Its Association With Technical Characteristics of Transversus Abdominis Plane Block: A Cross-Sectional Study
- Association Between Body Mass Index and Ultrasound Image Quality During Abdominal Wall Blocks in Parturients: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Quadratus Lumborum Block and Transversus Abdominis Plane Block Following Caesarean Delivery Using Immediate Postoperative Pain Scores: A Prospective Comparative Study
- Ultrasonographic Assessment of Abdominal Wall Sonoanatomy Following Caesarean Delivery: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Ilioinguinal-Iliohypogastric Nerve Block and Transversus Abdominis Plane Block for Caesarean Delivery Using Immediate Analgesic Outcomes: A Prospective Comparative Study
- Ultrasonographic Evaluation of Peripheral Nerve Dimensions in Paediatric Patients Undergoing Regional Anaesthesia: A Cross-Sectional Study
- Association Between Age, Weight and Ultrasound-Measured Peripheral Nerve Depth in Paediatric Surgical Patients: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided and Anatomical Landmark-Guided Ilioinguinal-Iliohypogastric Nerve Block in Paediatric Inguinal Surgery: A Prospective Comparative Study
- Comparison of Ultrasound-Guided Transversus Abdominis Plane Block and Ilioinguinal-Iliohypogastric Nerve Block in Paediatric Lower Abdominal Surgery: A Prospective Comparative Study
- Ultrasonographic Assessment of the Rectus Sheath in Paediatric Surgical Patients: A Cross-Sectional Anatomical Study
- Comparison of Ultrasound-Guided Rectus Sheath Block and Local Wound Infiltration for Paediatric Umbilical Surgery: A Prospective Comparative Study
- Association Between Abdominal Wall Thickness and Local Anaesthetic Spread During Ultrasound-Guided Paediatric Fascial Plane Blocks: A Cross-Sectional Observational Study
- Ultrasonographic Assessment of the Sacral Hiatus in Paediatric Surgical Patients: A Cross-Sectional Study
- Comparison of Ultrasound-Guided and Landmark-Guided Caudal Block in Paediatric Patients Based on First-Attempt Success and Procedure Characteristics: A Prospective Comparative Study
- Association Between Age and Ultrasound-Measured Sacral Canal Dimensions in Paediatric Patients: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Quadratus Lumborum Block and Caudal Block for Paediatric Lower Abdominal Surgery Using Immediate Analgesic Outcomes: A Prospective Comparative Study
- Ultrasonographic Evaluation of Femoral Nerve Depth and Cross-Sectional Area in Paediatric Lower Limb Surgical Patients: A Cross-Sectional Study
- Comparison of Ultrasound-Guided Femoral Nerve Block and Fascia Iliaca Compartment Block in Paediatric Femoral Procedures: A Prospective Comparative Study
- Association Between Patient Age and Sonoanatomical Visibility During Ultrasound-Guided Peripheral Nerve Blocks in Children: A Cross-Sectional Observational Study
- Comparison of Ultrasound-Guided Regional Blocks Performed by Postgraduate Trainees and Experienced Anaesthesiologists Based on Procedure Time and Immediate Technical Success: A Prospective Comparative Study
- Association Between Operator Experience and Number of Needle Redirections During Ultrasound-Guided Peripheral Nerve Blocks: A Cross-Sectional Analytical Study
- Association Between Ultrasound Image Quality and First-Pass Needle Placement Success During Peripheral Nerve Blocks: A Cross-Sectional Observational Study
- Comparison of Short-Axis and Long-Axis Ultrasound Visualization Techniques for Peripheral Nerve Block Performance: A Prospective Comparative Study
- Association Between Needle Visibility Score and Number of Needle Redirections During Ultrasound-Guided Regional Anaesthesia: A Cross-Sectional Analytical Study
- Comparison of Echogenic and Conventional Regional Anaesthesia Needles Based on Ultrasound Visibility and Procedure Characteristics: A Prospective Comparative Study
- Association Between Patient Position and Sonoanatomical Image Quality During Common Ultrasound-Guided Peripheral Nerve Blocks: A Cross-Sectional Observational Study
- Comparison of High-Frequency Linear and Low-Frequency Curvilinear Ultrasound Transducers for Visualization of Deep Peripheral Nerve Block Targets: A Prospective Comparative Study
- Association Between Skin-to-Target Depth and Block Performance Time Across Common Ultrasound-Guided Regional Anaesthesia Techniques: A Cross-Sectional Analytical Study
- Comparison of Ultrasound-Guided Peripheral Nerve Blocks With Superficial and Deep Anatomical Targets Based on Needle Visibility, Procedure Time and Immediate Block Success: A Prospective Comparative Study
📌 Updated for 2026–2027 ultrasound-guided blocks research
The topics prioritise clinically useful ultrasound-guided regional anaesthesia questions that can be investigated during routine perioperative practice.
- Feasible resources include standard ultrasound machines, linear or curvilinear transducers, routine regional anaesthesia needles, standard local anaesthetics, perioperative monitors and structured sensory or motor assessment.
- Advanced imaging, research-only biomarkers, additional radiation, specialised laboratory investigations and expensive research-specific equipment are not required for most projects.
- Publication potential improves when target depth, image quality, needle visibility, needle redirections, local anaesthetic spread and immediate block success are measured with predefined methods.
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- Introduction / Synopsis
- Research Question
- Aim of the Study
- Primary Objective
- Secondary Objectives
- Materials and Methods
- Inclusion Criteria
- Exclusion Criteria
- Sample Size Calculation
- Methodology
- Statistical Analysis
- Ethical Considerations
- Review of Literature
- References
- Gantt Chart / Study Timeline
- Patient Information Sheet
- Consent Form
- Data Collection Form
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Alongside ultrasound Guided Blocks in Anesthesiology protocols and synopses, support is also available for departmental presentations, journal club presentations, ethics committee presentations, and posters and oral presentations for medical conferences — for postgraduate residents, board trainees and research scholars across India and the GCC. Prepared by a practising doctor with long experience in medical publishing and thesis supervision.
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Ultrasound Guided Blocks in Anesthesiology research outside India
The topics above work as research questions anywhere — what changes is the document the institution expects, and who approves it before data collection begins. The Gulf equivalent of an Indian synopsis is the ultrasound Guided Blocks in Anesthesiology research proposal submitted to an institutional review board, and it ordinarily carries three sections an Indian synopsis does not: a Gantt chart, a budget and resources section, and a Declaration of Helsinki statement.
Board and residency programmes — country by country
Saudi Arabia — SCFHS and the Saudi Board. Residency and fellowship training under the Saudi Commission for Health Specialties includes a research project with a set timeline, and the ultrasound Guided Blocks in Anesthesiology research proposal is the document prepared at the outset and cleared by the institutional review board before recruitment starts.
United Arab Emirates — DHA, DOH Abu Dhabi and MOHAP. Residents training in Dubai, Abu Dhabi and the northern emirates prepare an ultrasound Guided Blocks in Anesthesiology research protocol for their programme and submit it for institutional review board approval before any data are collected.
Qatar — QCHP and Hamad Medical Corporation. A ultrasound Guided Blocks in Anesthesiology IRB proposal is reviewed before recruitment, with the ethics section written to the institution's own template rather than a generic one.
Bahrain — NHRA. Trainees turning ultrasound Guided Blocks in Anesthesiology research topics into a project need the proposal cleared by their institutional research and ethics committee before fieldwork begins.
Oman — OMSB. Residency programmes under the Oman Medical Specialty Board include a research component, and the ultrasound Guided Blocks in Anesthesiology research proposal is the document assessed at the start of it.
Kuwait — KIMS. A ultrasound Guided Blocks in Anesthesiology study protocol goes to the institutional committee for approval before the project begins.
Arab Board programmes across the region. The Arab Board carries its own research requirement irrespective of the host country, and the ultrasound Guided Blocks in Anesthesiology proposal follows the same structure throughout.
Postgraduate degrees — Malaysia, the Gulf and beyond
Malaysia — MMed, the National Medical Research Register and MREC. A ultrasound Guided Blocks in Anesthesiology dissertation proposal for a Master of Medicine programme carried out in a Ministry of Health facility must be registered on the NMRR and approved by the Medical Research and Ethics Committee before the study begins, and the guidance asks for submission four to six months ahead of data collection. Every investigator on the study team registers on the NMRR as well, so the methodology, ethics and team sections are written in far more detail than an Indian synopsis requires.
PhD and Master's candidates elsewhere. University programmes generally require a full ultrasound Guided Blocks in Anesthesiology research proposal of roughly 6,000 to 10,000 words, with an extended literature review, a theoretical framework and a detailed methodology chapter.
PhD and MMed proposals are written individually by a medical doctor and revised until the supervisor accepts them. They are not produced by the automated protocol generator.
Enquire about an ultrasound Guided Blocks in Anesthesiology PhD or MMed proposal →
🔥 Trending research areas in ultrasound-guided blocks for 2026–27
- Motor-sparing blocks: superior trunk, adductor canal and pericapsular nerve group blocks support clinically relevant comparisons of analgesia, sensory coverage and motor preservation.
- Newer fascial plane blocks: erector spinae, quadratus lumborum, external oblique intercostal and parasternal approaches provide accessible questions on sonoanatomy, spread and dermatomal coverage.
- Ultrasound performance metrics: image quality, target depth, needle visibility, needle redirections and operator experience provide objective technical endpoints for postgraduate research.
- Population-specific sonoanatomy: paediatric, obstetric, obese and anatomically variable patients allow practical investigation of target depth, nerve dimensions and ultrasound visualisation.
Protocol and synopsis guidance
What an ultrasound-guided blocks protocol must contain
Define the block and ultrasound technique precisely. Record the anatomical target, patient position, transducer, scanning plane, needle approach, local anaesthetic drug, concentration and volume, and operator eligibility.
Separate technical and clinical outcomes. Prespecify image quality, target depth, needle visibility, needle redirections, procedure time and spread pattern separately from sensory block, motor block, analgesia, supplemental block or procedural success.
Fix assessment timing. Sonoanatomical measurements should follow a standard scanning method, while sensory, motor and immediate analgesic outcomes should be assessed at predefined intervals.
Ultrasound-guided blocks synopsis versus ultrasound-guided blocks protocol
A synopsis presents the research question, rationale, objectives and broad methodology. The protocol converts these into reproducible procedural steps by defining the ultrasound target, scanning method, needle approach, local anaesthetic regimen, spread classification, block assessment, rescue plan and statistical analysis.
Sample size and statistical analysis
Calculate sample size from one primary outcome. This may be a sonoanatomical measurement, technical-success proportion, difference between two block techniques, correlation between target depth and body mass index, or immediate block-success outcome.
Do not treat repeated nerve or dermatomal observations as independent patients. Multiple measurements from the same participant may be correlated and should be analysed accordingly.
Plan for important confounders. Body mass index, age, target depth, patient position, block approach, local anaesthetic volume, image quality and operator experience can influence technical and clinical outcomes.
Frequently Asked Questions – Ultrasound Guided Blocks In Anesthesiology (2026–27)
1. How do I choose a feasible ultrasound-guided blocks thesis topic in 2026?
Choose a block that is routinely performed in your department and match the research question to available surgical cases, ultrasound equipment and achievable recruitment. A focused comparison, sonoanatomical measurement, technical-performance study or immediate block-outcome study is usually more feasible than a project requiring prolonged follow-up.
2. Which study designs are accepted for ultrasound-guided regional anaesthesia research?
Cross-sectional anatomical, observational, analytical and prospective comparative designs are practical for the topics on this page. Diagnostic or technical-performance questions can also be studied when the reference outcome and measurement method are defined prospectively.
3. What should I settle with my guide before starting an ultrasound-guided block study?
Fix the block, surgical population, ultrasound approach, patient position, probe and needle orientation, local anaesthetic regimen, operator eligibility, primary outcome and assessment time. Define technical success, sensory and motor block success, needle redirections and any rescue or supplemental block before recruitment.
4. Can ultrasound-guided blocks thesis research be done with routine departmental resources?
Yes. Many projects require only a routinely available ultrasound machine, appropriate transducer, standard regional anaesthesia needles, routine local anaesthetics, standard monitors and structured perioperative assessment. Research-only imaging, advanced laboratory biomarkers or expensive specialised equipment are unnecessary for most topics.
5. What is the difference between an ultrasound-guided blocks synopsis and protocol?
The synopsis gives the rationale, objectives and broad methodology. The protocol specifies the exact ultrasound target, scanning plane, anatomical landmarks, needle approach, local anaesthetic regimen, spread assessment, block-success definition, assessment timing, rescue plan and statistical analysis so that the procedure and measurements are reproducible.
6. What ethical issues should I address in ultrasound-guided regional anaesthesia research?
Prospective studies require informed consent and must not add unnecessary needle passes, blocks or invasive procedures solely for research. Additional radiation, contrast or research-only venepuncture should not be introduced unless justified and approved. In paediatric studies, guardian consent and age-appropriate child assent should be obtained where applicable, while record-based research may seek a consent waiver according to institutional policy. Identifiable photographs or procedural video require separate consent. The protocol should name the clinical pathway for vascular puncture, neurological symptoms, local anaesthetic systemic toxicity or other important incidental findings and complications.
7. Why must block success and ultrasound technical success be defined separately?
A needle may reach the intended ultrasound plane with satisfactory image and spread while the resulting sensory or motor block remains incomplete. Conversely, a clinically effective block does not by itself describe needle visibility, redirections, target depth or spread pattern. Defining technical and clinical endpoints separately prevents these distinct outcomes from being incorrectly treated as interchangeable.
8. How is a PhD proposal different from an MD or DNB Anaesthesiology synopsis on ultrasound-guided blocks?
An MD or DNB synopsis generally addresses a focused block, anatomical measurement, technical factor or perioperative outcome feasible within routine clinical work. A PhD proposal usually requires broader originality, larger or multicentre samples, validation, advanced modelling, longitudinal outcomes or several linked research objectives.
9. When should I register my ultrasound-guided blocks thesis topic?
Register after confirming adequate numbers of the required surgical population, routine availability of the selected block and ultrasound equipment, and agreement on the primary outcome. The scanning technique, block procedure, outcome definitions and assessment time points should be finalised before recruitment.
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