title: Ultrasonographic Evaluation of Peripheral Nerves.
abstract: There are a variety of imaging modalities for evaluation of peripheral nerves. Of these, ultrasonography (US) is often underused. There are several advantages of this imaging modality, including its cost-effectiveness, time-efficient assessment of long segments of peripheral nerves, ability to perform dynamic maneuvers, lack of contraindications, portability, and noninvasiveness. It can provide diagnostic information that cannot be obtained by electrophysiologic or, in some cases, magnetic resonance imaging studies. Ideally, the neurosurgeon can use US as a diagnostic adjunct in the preoperative assessment of a patient with traumatic, neoplastic, infective, or compressive nerve injury. Perhaps its most unique use is in intraoperative surgical planning. In this article, a brief description of normal US nerve anatomy is presented followed by a description of the US appearance of peripheral nerve disease caused by trauma, tumor, infection, and entrapment.
authors.affiliation: Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA. Electronic address: zarina.ali@uphs.upenn.edu.
authors.forename: Zarina S
authors.initials: ZS
authors.lastname: Ali
authors.affiliation: Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
authors.forename: Jared M
authors.initials: JM
authors.lastname: Pisapia
authors.affiliation: Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
authors.forename: Tracy S
authors.initials: TS
authors.lastname: Ma
authors.affiliation: Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
authors.forename: Eric L
authors.initials: EL
authors.lastname: Zager
authors.affiliation: Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Division of Neurosurgery, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
authors.forename: Gregory G
authors.initials: GG
authors.lastname: Heuer
authors.affiliation: Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
authors.forename: Viviane
authors.initials: V
authors.lastname: Khoury
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D009408:Nerve Compression Syndromes / Q000000981:diagnostic imaging / Q000473:pathology; D059348:Peripheral Nerve Injuries / Q000000981:diagnostic imaging / Q000473:pathology; D010525:Peripheral Nerves / Q000033:anatomy & histology / Q000000981:diagnostic imaging* / Q000382:microbiology / Q000473:pathology*; D010523:Peripheral Nervous System Diseases / Q000000981:diagnostic imaging* / Q000473:pathology*; D010524:Peripheral Nervous System Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D011237:Predictive Value of Tests; D014463:Ultrasonography / Q000706:statistics & numerical data
keywords: Peripheral nerve; Ultrasonography; Ultrasound