A subtraction technique in conventional angiography.
A subtraction technique is described for conventional angiography by which a superimposed vessel can be removed, allowing exact visualization of the area in question. The method is easy, requires only standard subtraction apparatus, and obviates the need for additional contrast material injections.
D000792:Angiography / Q000379:methods*; D006801:Humans; D013382:Subtraction Technique