title: Ultrasonic stimulation of low lumbar nerve roots as a diagnostic procedure: a preliminary report.
abstract: Ultrasonation of irritated lumbosacral nerve roots produces radiation of pain into the ipsilateral buttock. If pain is reported when using the ultrasonic stimulator with no sonation, good evidence is obtained that the patient's symptoms are not arising from radicular pathology.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000175:diagnosis; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis; D013126:Spinal Nerve Roots; D014463:Ultrasonography