• Yuanxing Guo, Shan-Xing Ou, Min Qian, Xiaotao Zeng, and Bin Li.
• Department of Radiology, Guangzhou General Hospital of Guangzhou Command of PLA Guangzhou 510010, China.
• Int J Clin Exp Med. 2015 Jan 1; 8 (5): 7802-8.

PurposeTo investigate the clinical utility of dual-source dual-energy CT angiography (DSDECTA) for diagnosing intracranial dural arteriovenous fistula (DAVF).MethodsNine intracranial DAVF patients were examined using Siemens DSDECTA and cerebral digital subtraction angiography (DSA). Imaging data were retrospectively analyzed to evaluate the concordance between the imaging modalities.ResultsDSDECTA examination showed that the blood-supplying arteries were thickened and the draining veins and dural sinuses were expanded in all 9 patients. The presence and characteristics of intracranial DAVF were confirmed using DSA. Head CT showed subarachnoid hemorrhage in 4 cases and intracerebral hematoma in 3 cases.ConclusionAlthough DSA is the gold standard for DAVF diagnosis, DSDECTA is less invasive and more suitable for revealing the three-dimensional structure of secondary intracranial lesions as well as other DAVF characteristics. Thus, DSDECTA may be a new alternative for noninvasive screening of suspected DAVF patients before interventional embolization and surgical resection.

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