Pulsatile tinnitus in a case of traumatic temporal extradural arteriovenous fistula: carotid duplex sonography findings before and after embolization.
Carotid duplex sonography (CDS) is regarded as a screening tool for lateral dural arteriovenous fistulae (AVF). However, data on evaluating long-term effects of endovascular treatment are limited. We report the CDS findings in the feeding arteries of a traumatic temporal extradural AVF before and after transarterial embolization. Volume flow of the left common carotid artery was greater than the right (433 ml/minute versus 294 ml/minute right) and the resistance index of the left external carotid artery was lower than the right (0.69 left versus 0.84 right). Both parameters returned to normal 4 months after embolization, thus confirming successful endovascular treatment.
Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, 123 Ta-Pei Road, Niao-Sung Hsiang, Kaohsiung 833, Taiwan.
Teng-Yeow
TY
Tan
Yun-Yu
YY
Lin
Ulf
U
Schminke
Ting-Yao
TY
Chen
D000328:Adult; D015901:Angiography, Digital Subtraction; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging* / Q000628:therapy; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging; D013699:Temporal Arteries / Q000002:abnormalities* / Q000000981:diagnostic imaging; D018616:Ultrasonography, Doppler, Duplex