Role of ulnar nerve sonography in XXXX with electrophysiologic correlation.

@entity1 @entity854 @entity16 @entity1201
OBJECTIVE: The purpose of this study was to evaluate the diagnostic usefulness of ulnar nerve sonography in @entity16 with electrophysiologic correlation. METHODS: Twenty-one consecutive @entity1 with @entity1201 (12 @entity1 and 9 @entity1 ; mean age +/- SD, 47.7 +/- 17.2 years) and 20 control @entity1 (14 @entity1 and 6 @entity1 ; mean age, 46.5 +/- 16.2 years) were evaluated with sonography. @entity1201 diagnosis was established on the basis of clinical, bacteriologic, and histopathologic criteria. The reference standard for @entity16 in this study was clinical symptoms in @entity1 with proven @entity1201 . The sonographic cross-sectional areas (CSAs) of the ulnar nerve in 3 different regions were obtained. Statistical analyses included Student t tests and receiver operating characteristic curve analysis. RESULTS: The CSAs of the ulnar nerve were significantly larger in the @entity1201 group than the control group for all regions (P < .01). @entity854 in @entity1201 nerves included focal thickening (90.5%), hypoechoic areas (81%), loss of the fascicular pattern (33.3%), and focal hyperechoic areas (4.7%). Receiver operating characteristic curve analysis showed that a maximum CSA cutoff value of 9.8 mm(2) was the best discriminator (sensitivity, 0.91; specificity, 0.90). Three @entity1 with normal electrophysiologic findings had abnormal sonographic findings. Two @entity1 had normal sonographic findings, of which 1 had abnormal electrophysiologic findings, and the other refused electrophysiologic testing. CONCLUSIONS: Sonography and electrophysiology were complementary for identifying @entity16 in @entity1 with @entity1201 , with clinical symptoms as the reference standard. This reinforces the role of sonography in the investigation of @entity16 .
