NDLI: Image-based computational hemodynamics of distal aortic arch recoarctation following the Norwood procedure

Content Provider	IEEE Xplore Digital Library
Author	Liu, J.L. Qian, Y. Itatani, K. Murakami, A. Shiurba, R. Miyaji, K. Miyakoshi, T. Umezu, M.
Copyright Year	2011
Description	Author affiliation: Graduate School of Medicine, The University of Tokyo, Tokyo, Japan (Qian, Y.; Miyaji, K.) \|\| Australian School of Advanced Medicine, Macquarie University, Sydney, Australia (Shiurba, R.) \|\| School of Medicine, Kitasato University, Kanagawa, Japan (Miyakoshi, T.) \|\| Center for Advanced Biomedical Sciences, TWIns, Waseda University, Tokyo, Japan (Liu, J.L.; Itatani, K.; Murakami, A.; Umezu, M.)
Abstract	Currently, few applications of computational hemodynamics predict outcomes after palliative surgery for congenital heart defects such as hypolastic left heart syndrome in infants. Here, we report on three-dimensional imaging methods for modeling recoarctation that commonly occurs in the distal aortic arch following the Norwood procedure. We used computer-aided design to simulate seven stages of increasing stenosis, analyze the resulting hemodynamics, and visualize the impairment of blood flow. A disproportionate drop in pressure occurred when stenosis reached 20% of the cross-sectional area of the descending aorta. The corresponding decrease in blood flow in the descending aorta was relatively small, however. Accordingly our findings suggest a reasonable approach to this phenomenon is watchful waiting rather than immediate surgical intervention. Such patient-specific predictions appear to be valuable for minimizing the risks of corrective surgery. These methods also may be applied to procedures for alleviating other congenital heart defects.
Starting Page	318
Ending Page	323
File Size	1139792
Page Count	6
File Format	PDF
ISBN	9781424493517
e-ISBN	9781424493524
DOI	10.1109/BMEI.2011.6098269
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	recoarctation Solid modeling computational fluid dynamics computer-aided design hemodynamics Geometry Norwood procedure Surgery Three dimensional displays Numerical models Hemodynamics medical imaging Biomedical imaging
Content Type	Text
Resource Type	Article

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