title: Digital subtraction angiography.
abstract: DSA is a promising method for improving the results of cerebrovascular angiography. Experience suggests that VI-DSA will have a more limited application than was originally expected. It is a low-risk, cost-efficient technique for serial and postoperative studies and for screening outpatients who may have occlusive extracranial lesions that have not been detected by noninvasive tests; however, false-negative results may be obtained. AI-DSA provides far more accurate and reliable results than VI-DSA and has the potential for increasing the flexibility, efficiency, and safety of angiography, in comparison with conventional techniques.
mesh_terms: D000792:Angiography / Q000295:instrumentation*; D001927:Brain Diseases / Q000000981:diagnostic imaging*; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging; D002533:Cerebral Angiography / Q000295:instrumentation; D002560:Cerebrovascular Circulation; D003201:Computers; D005544:Forecasting; D006801:Humans; D012851:Sinus Thrombosis, Intracranial / Q000000981:diagnostic imaging; D013116:Spinal Cord / Q000098:blood supply; D013382:Subtraction Technique / Q000295:instrumentation*