Value of external carotid artery resistive index for diagnosis of cavernous sinus dural arteriovenous fistula and determination of malignant type

Publication date: May–June 2018
Source:Clinical Imaging, Volume 49
Author(s): Chai Kobkitsuksakul, Wasawat Soratcha, Ekachat Chanthanaphak
PurposeCavernous sinus dural arteriovenous fistula (CSDAVF) causes hemodynamic disturbance in the arteries, which is detected by carotid Doppler sonography (CDS). The objective of the study was designed for validation of CDS in the diagnosis of CSDAVF.Material and methods42 CSDAVF patients confirmed by angiography were enrolled. All patients were performed CDS before angiography. Evaluations of CDS parameters were compared with control subjects.ResultsThe ECA resistive index (RI) shows the best performance. The highest yield shown on left ECA RI and increased from 78.6% to 91.7% on malignant-typed.ConclusionCDS may be beneficial as the screening tool for CSDAVF.

Graphical abstract

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