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Role of magnetic resonance imaging in entrapment and compressive neuropathy—what, where, and how to see the peripheral nerves on the musculoskeletal magnetic resonance image: part 1. Overview and lower extremity

 Sungjun Kim  ;  Jin-Young Choi  ;  Jin-Suck Suh  ;  Seung Min Kim  ;  Sung-Ah Lee  ;  Ho-Taek Song  ;  Yong-Min Huh 
 EUROPEAN RADIOLOGY, Vol.17(1) : 139-149, 2007 
Journal Title
Issue Date
Humans ; Leg/innervation* ; Magnetic Resonance Imaging* ; Nerve Compression Syndromes/diagnosis* ; Peripheral Nervous System/pathology*
The diagnosis of nerve entrapment and compressive neuropathy has been traditionally based on the clinical and electrodiagnostic examinations. As a result of improvements in the magnetic resonance (MR) imaging modality, it plays not only a fundamental role in the detection of space-occupying lesions but also a compensatory role in clinically and electrodiagnostically inconclusive cases. Although ultrasound has undergone further development in the past decades and shows high resolution capabilities, it has inherent limitations due to its operator dependency. We review the general concepts that should be known to evaluate the entrapment and compressive neuropathy in MR imaging. We also review the course of normal peripheral nerves, as well as various clinical demonstrations and pathological features of compressed and entrapped nerves in the lower extremities on MR imaging, according to the nerves involved. The common sites of nerve entrapment of the lower extremity are as follows: sciatic nerve around the piriformis muscle; tibial nerve at the popliteal fossa and tarsal tunnel, common peroneal nerve around the fibular neck, and digital nerve near the metatarsal head. Although MR imaging can depict the peripheral nerves in the extremities effectively, radiologists should be familiar with nerve pathways, common sites of nerve compression, and common space-occupying lesions resulting in nerve compression in MR imaging.
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1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sungjun(김성준) ORCID logo https://orcid.org/0000-0002-7876-7901
Kim, Seung Min(김승민) ORCID logo https://orcid.org/0000-0002-4384-9640
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
Song, Ho Taek(송호택) ORCID logo https://orcid.org/0000-0002-6655-2575
Lee, Sung Ah(이성아)
Choi, Jin Young(최진영) ORCID logo https://orcid.org/0000-0002-9025-6274
Huh, Yong Min(허용민) ORCID logo https://orcid.org/0000-0002-9831-4475
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