Arterial Blood Flow Measurement Using Digital Subtraction Angiography (DSA)

David K. Swanson; P.David Myerowitz; Michael S. Van Lysel; Walter W. Peppler; Barry L. Fields; Kim M. Watson; Julia O'Connor

doi:10.1117/12.943208

28 August 1984 Arterial Blood Flow Measurement Using Digital Subtraction Angiography (DSA)

David K. Swanson, P.David Myerowitz, Michael S. Van Lysel, Walter W. Peppler, Barry L. Fields, Kim M. Watson, Julia O'Connor

Author Affiliations +

Proceedings Volume 0486, Medical Imaging and Instrumentation '84; (1984) https://doi.org/10.1117/12.943208
Event: Medical Imaging and Instrumentation '84, 1984, Las Vegas, United States

Abstract

Standard angiography demonstrates the anatomy of arterial occlusive disease but not its physiological signficance. Using intravenous digital subtraction angiography (DSA), we investigated transit-time videodensitometric techniques in measuring femoral arterial flows in dogs. These methods have been successfully applied to intraarterial DSA but not to intravenous DSA. Eight 20 kg dogs were instrumented with an electromagnetic flow probe and a balloon occluder above an imaged segment of femoral artery. 20 cc of Renografin 76 was power injected at 15 cc/sec into the right atrium. Flow in the femoral artery was varied by partial balloon occlusion or peripheral dilatation following induced ischemia resulting in 51 flow measurements varying from 15 to 270 cc/min. Three different transit-time techniques were studied: crosscorrelation, mean square error, and two leading edge methods. Correlation between videodensitometry and flowmeter measurements using these different techniques ranged from 0.78 to 0.88 with a mean square error of 29 to 37 cc/min. Blood flow information using several different transit-time techniques can be obtained with intravenous DSA.

Citation Download Citation

David K. Swanson, P.David Myerowitz, Michael S. Van Lysel, Walter W. Peppler, Barry L. Fields, Kim M. Watson, and Julia O'Connor "Arterial Blood Flow Measurement Using Digital Subtraction Angiography (DSA)", Proc. SPIE 0486, Medical Imaging and Instrumentation '84, (28 August 1984); https://doi.org/10.1117/12.943208

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