4D DSA a new technique for arteriovenous malformation evaluation: a feasibility study.

ABSTRACT:

Background

The angioarchitectural features of an arteriovenous malformation (AVM) provide key information regarding natural history and treatment planning. Because of rapid filling and vascular overlap, two-dimensional (2D) and three-dimensional (3D) digital subtraction angiography (DSA) are often suboptimal for evaluation of these features. We have developed an algorithm that derives a series of fully time-resolved 3D DSA volumes (four-dimensional (4D) DSA) at up to 30 frames/s from a conventional 3D DSA. The temporal/spatial resolution of 4D reconstructions is significantly higher than that provided by current MR angiography and CT angiography techniques. 4D reconstruction allows viewing of an AVM from any angle at any time during its opacification. This feasibility study investi

SUBMITTER: Sandoval-Garcia C 

PROVIDER: S-EPMC4740248 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature