CT arteriography and venography in pulsatile tinnitus: preliminary results.
OBJECTIVE
Pulsatile tinnitus (PT), a common disorder, can be caused by a variety of otologic and vascular lesions. Various imaging modalities, including CT, MR imaging and angiography, and conventional angiography, have been used in the assessment of PT. Ideally, a single imaging study to evaluate for the largest variety of etiologies would be optimal. In our study, we examine the potential for CT arteriography and venography (CTA/V) in the evaluation of PT.


METHODS
Sixteen patients with PT were prospectively evaluated by an otolaryngologist, had a normal otologic examination, and were referred for a CTA/V. All examinations were performed on a 16-section multidetector CT. The carotid bifurcations, internal carotid artery course, transverse and sigmoid sinuses, jugular foramen, internal jugular vein, sella turcica, and temporal bones were evaluated.


RESULTS
Seven of the 16 patients had lesions on CTA/V that could account for their PT. Examples of pathologic conditions in the series included a significantly dominant venous system, a venous diverticulum with stricture, and a transverse sinus stenosis.


CONCLUSIONS
Preliminary findings indicate that CTA/V can be a valuable imaging tool in the assessment of PT. With this technique, arterial, venous, middle, and inner ear causes of PT can be excluded.
Krishnan
A
A
Neuroradiology Division, Department of Radiology, Emory University School of Medicine, Atlanta, GA 30322, USA.
Mattox
D E
DE
Fountain
A J
AJ
Hudgins
P A
PA
D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000000981:diagnostic imaging*; D002550:Cerebral Veins / Q000000981:diagnostic imaging*; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004427:Ear Diseases / Q000000981:diagnostic imaging; D007758:Ear, Inner / Q000000981:diagnostic imaging; D004432:Ear, Middle / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014012:Tinnitus / Q000000981:diagnostic imaging* / Q000209:etiology; D036542:Tomography, Spiral Computed