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  • Title: [Classification of intracranial dural arteriovenous fistula and its clinical signification].
    Author: Ling F, Wu J, Zhang H.
    Journal: Zhonghua Yi Xue Za Zhi; 2001 Dec 10; 81(23):1439-42. PubMed ID: 11930617.
    Abstract:
    OBJECTIVE: To develop a practical imaging calssification of intracranial dural arteriovenous fistula (DAVF) based on imaging and its clinical significance. METHOD: The lesion positions and drainage patterns of vein in 110 patients with 121 dural arteriovenous fistulas hospitalized in Xuanwu Hospital were analyzed and a new type of classification of DAVF was developed. RESULTS: The dural arteriovenous fistulas in 110 patients were classified accrding to lesion position into DAVF of dural sinus, cavernous sinus, tentorial incisure, venous plexus at skull base, and cerebral falx; or classified according to the pattern of venous drainiage into type I (draining directly into dural vein or dural sinus), type II (directly draining into dural sinus with retrograde venous drainage into cortical vein or spinal vcein), and type III (directly draining into cortical vein or spinal vein). Then, based on a combination of these two criteria, DAVF was claassified into cavernius sinus area type I (38 cases, 69.1%) and type II (17 cases, 30.9%); dural sinus area type I (11 cases, 33.3%), type II (16 cases, 56.4%), and type III (2 cases, 10.3%); and tentorial area (20 cases), skull base vein plexus area (6 cases), and cerebral falx area (1 case), all in type III. CONCLUSION: The newly developed classification system of intracranial dural arteriovenous fistula helps analyze clinical risk and determine therapeutic procedures.
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