Related Experiment Video
Updated: Jun 1, 2026
03:14
Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
Published on: January 31, 2025
Anatomical study of spinal accessory nerve using ultrasonography
Clarissa Canella1, Xavier Demondion, Evandro Abreu
1Service de Radiologie et d'Imagerie Musculosquelettique, Centre de Consultations et d'Imagerie de l'Appareil Locomoteur, CHRU, 59037 Lille, France.
European Journal of Radiology
|May 21, 2011
Summary
High-resolution ultrasonography precisely visualizes the spinal accessory nerve (SAN). This imaging technique offers a clear depiction of the SAN
Area of Science:
- Anatomy
- Radiology
- Neurology
Background:
- The spinal accessory nerve (SAN) is crucial for shoulder and neck movement.
- Accurate anatomical knowledge of the SAN is essential for surgical procedures and diagnosing nerve-related conditions.
- Traditional methods for assessing the SAN may lack precision.
Purpose of the Study:
- To evaluate the utility of ultrasonography in precisely assessing the course and anatomical relationships of the spinal accessory nerve (SAN).
Main Methods:
- A study involving 7 cadavers was conducted.
- High-resolution ultrasonography was performed on 30 nerves in 15 healthy volunteers.
- Two radiologists collaboratively analyzed the location, course, and adjacent structures of the SAN.
Main Results:
- High-resolution ultrasonography successfully identified the precise course of the SAN.
- The nerve was visualized between the sternocleidomastoid and trapezius muscles.
- Conventional clinical bone landmarks proved unhelpful for nerve identification.
Conclusions:
- Ultrasonography provides clear visualization of the spinal accessory nerve (SAN).
- Understanding the nerve's exact location, including individual variations, has significant clinical implications.
- This imaging modality can aid in diagnosis and treatment planning related to the SAN.
Related Concept Videos
01:17Ultrasonography
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
During an ultrasonography procedure, a handheld device called a...
01:24Imaging Studies II: Ultrasonography
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
01:23Spinal Nerves: Anatomy
Spinal nerves are pivotal conduits in the nervous system, bridging the central nervous system (CNS) with the peripheral nervous system (PNS). These nerves enable a complex communication network between the brain, spinal cord, and the rest of the body, facilitating sensory input, motor output, and autonomic functions.
There are 31 bilateral pairs of spinal nerves, each emerging from the spinal cord through the intervertebral foramina—openings between adjacent vertebrae. These nerves are...
There are 31 bilateral pairs of spinal nerves, each emerging from the spinal cord through the intervertebral foramina—openings between adjacent vertebrae. These nerves are...
01:16Spinal Cord: Cross-sectional Anatomy
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
01:15Spinal Cord: Gross Anatomy
The spinal cord resides within the protective confines of the vertebral column. It is the main pathway for information traveling between the brain and the body. It plays a fundamental role in nearly all bodily functions, from simple reflexes to complex motor movements. The spinal cord begins at the medulla oblongata at the base of the brainstem and extends downward, terminating at the conus medullaris near the first and second lumbar vertebrae. The spinal cord's length in adults is...
01:20Ultrasound I: Abdominal Ultrasonography
Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...