Intraarterial digital subtraction angiography: a comparative view.
Intraarterial digital subtraction angiography (IA DSA) was performed in 122 patients undergoing a variety of diagnostic and interventional angiographic procedures. Owing to the increased contrast resolution of DSA, diluted contrast material in concentrations of from 12-19% could be employed, thereby significantly reducing contrast material doses compared to doses used with conventional film-screen angiography or intravenous DSA. Patient discomfort was convincingly reduced due to the injection of dilute contrast material. Subtracted digital images could be viewed immediately on a cathode ray tube (CRT) resulting in faster procedures with less catheter time. Savings in film costs relative to conventional angiography were also achieved.
D000792:Angiography / Q000009:adverse effects / Q000379:methods*; D003201:Computers; D003287:Contrast Media / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D013382:Subtraction Technique; D014652:Vascular Diseases / Q000000981:diagnostic imaging
D003287:Contrast Media