Digital intraarterial subtraction technique of the extracerebral vascular system |
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Authors: | Prof Dr Albert L Baert Guy E Wilms Filip de Somer Jan Smits |
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Institution: | 1. Department of Diagnostic Radiology, Catholic University of Leuven, University Hospital St Rafa?l, B-3000, Leuven, Belgium
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Abstract: | We report the results from intraarterial digital subtraction angiography (IA DSA) of the extracerebral vessels with aortic
arch injection of contrast medium via femoro-arterial puncture, instead of the more widely used intravenous digital subtraction
angiography (IV DSA). Intraarterial DSA is performed using a lower contrast dose and rate, making this study less invasive
and costly than the conventional arteriographic study of the aortic arch. Intraarterial DSA provides better resolution than
IV DSA. The diagnostic accuracy is almost equivalent to conventional angiography and is largely superior to photographic subtraction
angiography with intravenous injection of contrast media. |
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Keywords: | Digital subtraction angiography intraarterial (IA DSA) DSA comparative studies Angiography carotid arteries Digital radiography |
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