To review high-resolution ultrasound imaging of peripheral nerves with emphasis on small peripheral nerve branches.
With recent advancements in imaging technology including the development of clinical 24 MHz/33 MHz probes,
high-resolution ultrasonography has emerged as an excellent tool for imaging of peripheral nerves.
Sonographic evaluation of superficial peripheral nerves is best performed with high-frequency probe (18 MHz and 24 MHz probes are used at our institution) whereas evaluation of deeper peripheral nerves may require a relatively lower frequency probe (ie.
Ultrasound can also be used...
Imaging findings OR Procedure Details
Knowledge of basic nerve anatomy is important for accurate interpretation of nerve imaging. Individual nerve fibers are encircled by the endoneurium,
and a group of nerve fibers are encircled by the perineurium to form a fascicle.
A group of fascicles is in turn encircled by the epineurium,
which represents the outermost layer of a nerve.
Interspersed between the fasciculi are blood vessels which run longitudinally within the nerve. Nerve anatomy can be identified on high resolution...
High-resolution ultrasonography is an excellentmodality for imaging evaluation of peripheral nerves including small peripheral nerve branches.
Ultrasound can readily detect pathology of peripheral nerves including neuritis,
nerve sheath tumors,
and traumatic laceration.Given the fact thatultrasoundis operator-dependent,
an intimate knowledge of peripheral nerve anatomy and the spectrum ofimaging findings is crucial. In an experienced musculoskeletal...
1) Zaidman CM,Seelig MJ,Baker JC,Mackinnon SE,Pestronk A.Detection of peripheral nerve pathology: comparison of ultrasound and MRI.Neurology 2013;80(18):1634–1640. 2) Jacobson,
Sonography of Common Peripheral Nerve Disorders With Clinical Correlation.
J Ultrasound Med 35 ,
683–693. 3) Brown,
US of the Peripheral Nerves of the Upper Extremity: A Landmark Approach....
MD Assistant Professor Department of Radiology Division of Musculoskeletal Imaging
Northwestern University Northwestern Medical Group Northwestern Medicine Spine Center 676 N.
Saint Clair Street,