title: Four-dimensional computed tomography angiography is valuable in intracranial dural arteriovenous fistula diagnosis and fistula evaluation.
abstract: This study was to evaluate the value of four-dimensional computed tomography angiography (4D-CTA) in the diagnosis of intracranial dural arteriovenous fistula (DAVF). This study included 16 patients who were diagnosed to have intracranial DAVF by digital subtraction angiography (DSA). The 4D-CTA was performed by Aquilion ONE multi-detector CT scanner (Toshiba Medical Systems, Japan) equipped with 320 × 0.5 mm detector rows. Standard biplane fluoroscopy equipments (Infinix, Toshiba Medical Systems, Japan and ADVANTX LC/LP, GE Medical Systems, Milwaukee, WI, USA) were applied in the diagnosis of intra-arterial DSA. Examinations were performed to evaluate the findings of DSA and 4D-CTA in each patient. The examination results were read by two independent readers in a blind manner. All results were documented on standardized scoring sheets. In all 16 cases, the same diagnosis results of intracranial DAVF were obtained from DSA and 4D-CTA. The results of subtype (Borden and Cognard classification), venous reflux and fistula sites were also accurately exhibited in 4D-CTA. In addition, there was a little discrepancy in identifying smaller and specific arterial branches and in distinguishing fistula type (focal or diffuse) using 4D-CTA. Good-to-excellent agreements were made between 4D-CTA and DSA. Therefore, 4D-CTA could be a feasible tool for the characterization of intracranial DAVF, with respect to determining fistula site and venous drainage.
authors.affiliation: Department of Radiology, No. 1 Hospital of Ningbo, No. 59 Liuting Road, Haishu District, Ningbo, 315010, Zhejiang, People's Republic of China.
authors.forename: Xianwang
authors.initials: X
authors.lastname: Ye
authors.forename: Haifeng
authors.initials: H
authors.lastname: Wang
authors.forename: Qiuli
authors.initials: Q
authors.lastname: Huang
authors.forename: Maoqing
authors.initials: M
authors.lastname: Jiang
authors.forename: Xiang
authors.initials: X
authors.lastname: Gao
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Shengjun
authors.initials: S
authors.lastname: Zhou
authors.forename: Zhiqing
authors.initials: Z
authors.lastname: Lin
mesh_terms: D000328:Adult; D000368:Aged; D020785:Central Nervous System Vascular Malformations / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography / Q000379:methods*; D005260:Female; D056973:Four-Dimensional Computed Tomography / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011857:Radiographic Image Interpretation, Computer-Assisted; D055815:Young Adult