Diagnosis and evaluation of dural arteriovenous fistula with dual energy CT: a report of 6 cases
10.3760/cma.j.issn.1671-8925.2013.11.015
- VernacularTitle:双能量CT血管成像技术诊断颅内硬脑膜动静脉瘘(附六例报告)
- Author:
Yuan-Xing GUO
1
;
Shan-Xing OU
;
Xiao-Tao ZENG
;
Rui BO
;
Yin CHEN
Author Information
1. 广州军区广州总医院放射科
- Keywords:
Dural arteriovenous fistula;
Dual source CT;
Dual-energy imaging;
Digital subtraction angiography
- From:
Chinese Journal of Neuromedicine
2013;12(11):1150-1154
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the clinical application value of dual-energy imaging with dual-source CT in dural arteriovenous fistula (DAVF).Methods Six patients diagnosed as having DAVF by dual-energy angiography with dual-source CT (DECTA),conformed by DSA in our hospital from January 2009 to January 2013,were chosen in our study; their imaging data were retrospectively analyzed.Results The enlarged feeding arteries,dilated draining veins and dural venous sinus of the DAVF in all patients were clearly demonstrated on DECTA.The draining veins of all six patients routed into the intracranial vein with forming venous collaterals.The imaging results were concordant exactly with their results of DSA (100％).The other changes of DAVF by cranial CT were subarachnoid hemorrhage in 3 cases and brain hemorrhage in 2 cases.Conclusion DECTA can demonstrate distinctly the secondary changes,feeding arteries,draining veins,dural venous sinus,and the skull three dimensional structure of DAVF; the imaging results were concordant exactly with their results of DSA,and can replace it in a way,as a new non-traumatic screening choice for suspected DAVF patients before embolization therapy and surgical resection.
