Medical Imaging Technology
Online ISSN : 2185-3193
Print ISSN : 0288-450X
ISSN-L : 0288-450X
Selected Papers from the JAMIT 2016 Annual Meeting ‹Papers›
Blood Flow Contribution Analysis for Pulmonary Artery and Aorta using Contrast Enhanced Images
Tomoki SAKAToshiyuki GOTOHSeiichiro KAGEITae IWASAWA
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2016 Volume 34 Issue 5 Pages 245-258

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Abstract
The bloodstream system of the pulmonary field consists of two systems: pulmonary arteries pass and aorta pass. Until now, the influence of recirculation has been excluded by fitting a gamma function, because the recirculation from aorta is less than 10 percent of the blood flow from pulmonary arteries. In this study, we consider the way to estimate influence of recirculation by modeling the impulse response of a blood flow system that consists of 2-inputs with pulmonary arteries pass and aorta pass firstly, and we propose the way to analyze two blood flow systems separately. An experimental prototype system using these methods was applied to three cases with pulmonary tumor. Furthermore, we compared the global blood volume of the whole pulmonary field inferred from the signal intensity of the pulmonary arteries and the left atrial, with the total of the local blood volume of the whole pulmonary, by using perfusion MRI. The validity was considered by comparing the percentage of the recirculation which occupies a pulmonary field with the cardiac output volume calculated using Fast GE cine MRI.
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© 2016 The Japanese Society of Medical Imaging Technology
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