1989 Volume 15 Issue 3 Pages 44-53
A review is made of the performance of the Digital Subtraction Angiography (DSA) system.
The temporal subtraction method is utilized to the imaging of diluted contrast material in the organ injected intravenously. However, the coronary angiography obtained through the temporal subtraction method is not feasible for clinical applications because of the motion blur of the heart.
In order to avoid the risks of the present method of coronary artery angiography, a K edge energy subtraction method using Synchrotron Radiation is under development. Conceptual aspects of several subtraction techniques are discussed.