title: Midline sagittal sonographic evaluation of the midbrain.
abstract: A technique has been developed for the A-mode display of the upper brain stem using certain bony landmarks to guide transducer placement. Normal findings were substantiated at the time of penumoencephalography and angiography in order to determine the anatomic origin of the ultrasound reflections. Findings in patients with mass lesions distorting the upper brain stem will also be reported.
mesh_terms: D000293:Adolescent; D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis*; D002533:Cerebral Angiography; D002648:Child; D003397:Craniopharyngioma / Q000175:diagnosis*; D004453:Echoencephalography / Q000379:methods; D005260:Female; D006394:Hemangiosarcoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008636:Mesencephalon; D008875:Middle Aged; D011011:Pneumoencephalography; D013724:Teratoma / Q000175:diagnosis*