Tomographic DSA using temporal filtration: initial neurovascular application.
A preliminary study showed that encouraging laboratory results reported previously using tomographic digital subtraction angiography (DSA) can be transferred to clinical application for neurovascular imaging. Tomography may show cervical carotid disease more clearly than standard DSA images, and it eliminates the interference caused by overlapping vessels. Production of multiple tomographic image planes from a single set of projection data, tomosynthesis, must be incorporated into this imaging system before tomographic DSA becomes clinically useful. This is a practical reality with the present equipment; clinical evaluation of this new capability is underway.
D002339:Carotid Arteries / Q000000981:diagnostic imaging; D002533:Cerebral Angiography / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D013382:Subtraction Technique / Q000295:instrumentation; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*