title: Clinical and carotid ultrasonographic features of intracranial dural arteriovenous fistulas in patients with and without Pulsatile Tinnitus.
abstract: OBJECTIVE
  Pulsatile tinnitus is a common symptom of intracranial dural arteriovenous fistulas (DAVF). This study aims to characterize the clinical and ultrasonographic features of DAVF in patients with pulsatile tinnitus.
  
  
  METHODS
  We compared the characteristics of DAVF and carotid duplex sonography (CDS) results between 67 DAVF patients with and without pulsatile tinnitus. We also investigated the relationship between changes in tinnitus status and serial CDS changes in 25 DAVF patients with pulsatile tinnitus.
  
  
  RESULTS
  Pulsatile tinnitus was highly associated with the location and feeding arteries of DAVF (P < .001). The sensitivity of resistive index (RI; Norm, >.72) and end diastolic velocity (EDV; Norm, <21 cm/sec) of external carotid artery (ECA) in CDS study for diagnosing DAVF in patients with pulsatile tinnitus was 95% and 92%, respectively. Changes of RI and EDV of ECA also correlated with the changes of tinnitus status.
  
  
  CONCLUSIONS
  RI and EDV of ECA have high diagnostic sensitivity and reliability for detecting DAVF in patients with pulsatile tinnitus.
authors.affiliation: Stroke Center and Department of Neurology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
authors.forename: Shin-Joe
authors.initials: SJ
authors.lastname: Yeh
authors.forename: Li-Kai
authors.initials: LK
authors.lastname: Tsai
authors.forename: Jiann-Shing
authors.initials: JS
authors.lastname: Jeng
mesh_terms: D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D020785:Central Nervous System Vascular Malformations / Q000150:complications* / Q000000981:diagnostic imaging*; D004453:Echoencephalography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014012:Tinnitus / Q000150:complications* / Q000000981:diagnostic imaging*