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The use of gadolinium‐enhanced magnetic resonance imaging to determine lesion site in traumatic facial paralysis
Author(s) -
Haberkamp Thomas J.,
Harvey Steven A.,
Daniels David L.
Publication year - 1990
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-199012000-00009
Subject(s) - lesion , magnetic resonance imaging , medicine , facial nerve , paralysis , gadolinium , facial paralysis , radiology , pathology , surgery , chemistry , organic chemistry
Gadolinium‐enhanced magnetic resonance imaging has been used to evaluate 20 patients with surgically confirmed facial nerve lesions. When the nerve could be seen, gadolinium‐enhanced magnetic resonance imaging accurately revealed the lesion site as well as the known extent, which in some cases was not predicted by topognostic testing. This technique appears to provide accurate lesion‐site testing and may have importance in surgical planning. Currently used topognostic tests of facial nerve function are frequently inaccurate and can only determine the most proximal lesion site when there are multiple or extensive lesions. The focal nerve enhancement seen in nerve injury, globally increased signal intensity within the temporal bone after trauma, and increased signal intensity within the dura after surgery can occasionally mask nerve lesions and may be confused with tumors.