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Proceedings Paper

Coronary blood flow measurement from x-ray images: experiment performed on the artery model
Author(s): Hania Goszczynska; Piotr Bogorodzki; Tomasz Wolak; R. Kurjata; M. Orzechowski
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Paper Abstract

The paper presents the experimental validation of the coronary blood flow measured from coronarographic images. The method of flow measurement earlier presented is based on elements of the indicator-dilution theory and on the idea of using two sequences of images obtained during standard coronarographic examination. Measurements of the image intensity along the cross-section lines of the artery were performed on the sequence with the standard injection of contrast and with the small quantity of slowly injected contrast. These two sequences enable the construction of the contrast relative concentration curve in the defined earlier cross-section vs. time. The global volumetric blood flow can be calculated as a ratio of the quantity of the indicator injected during the indicator-dilution sequence by the value of the area under concentration curve. Experimental validation was performed using a simple artery model. Results of the flow calculation for five cross-section lines positioned in different intensity levels regions of the image show that the error is below 20%.

Paper Details

Date Published: 7 July 2004
PDF: 7 pages
Proc. SPIE 5505, Optical Methods, Sensors, Image Processing, and Visualization in Medicine, (7 July 2004); doi: 10.1117/12.577931
Show Author Affiliations
Hania Goszczynska, Institute of Biocybernetics and Biomedical Engineering (Poland)
Piotr Bogorodzki, Warsaw Univ. of Technology (Poland)
Tomasz Wolak, Warsaw Univ. of Technology (Poland)
R. Kurjata, Warsaw Univ. of Technology (Poland)
M. Orzechowski, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5505:
Optical Methods, Sensors, Image Processing, and Visualization in Medicine
Antoni Nowakowski; Bogdan B. Kosmowski, Editor(s)

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