A STUDY OF TRANSVERSE IMAGE RECONSTRUCTION WITH DIGITAL SUBTRACTION ANGIOGRAPHY

Image Warping for Accurate Digital Subtraction Angiography

This paper describes a system for sub-pixel registration of mask and opacified digital X-ray images so that the mask image can be accurately subtracted out from the opacified image. Our technique results in digital subtraction angiograms (DSAs) with fewer artifacts and better contrast.

MR Digital Subtraction Angiography

Analysis of Subtraction Methods in 3D Contrast-Enhanced MR Digital Subtraction Angiography Yuexi Huang Master of Science 2001 Department of Medical Biophysics University of Toronto 3D Contrast-enhanced MR angiography is promising as a replacement to catheter-based x-ray angiography due to its non-invasive nature. However, the image quality of MR angiography is still inferior to that of x-ray an...

Digital subtraction angiography.

Automatic registration of temporal image pairs for digital subtraction angiography

Temporal Digital Subtraction Angiography (DSA) is used to visualize blood vessels in x-ray images. A DSA image pair consists of the mask image, which is a digitized x-ray taken before a contrast medium is injected into the bloodstream, and the live image, which is taken once the contrast medium has traversed the circulatory system and reached the blood vessels of interest. The mask image is the...

Subtraction coronary CT angiography with iterative reconstruction: a feasibility study of coronary calcium subtraction