Intraarterial digital subtraction angiography: A comparative view |
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Authors: | Stephen L Kaufman MD Richard Chang Saadoon Kadir Sally E Mitchell Robert I White Jr |
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Institution: | 1. The Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins Medical Institutions, 21205, Baltimore, MD, USA
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Abstract: | 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. |
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