NDLI: Validation of Echo-Dynamography by virtual color doppler echocardiography generated from phase contrast magnetic resonance angiography datasets

Content Provider	IEEE Xplore Digital Library
Author	Kojima, T. Omori, A. Nakajima, H. Kurokawa, T. Kameyama, T. Saijo, Y.
Copyright Year	2013
Description	Author affiliation: Dept. of Cardiology, Miyagi Social Insurance Hosp., Sendai, Japan (Kameyama, T.) \|\| Tohoku Welfare Pension Hosp., Sendai, Japan (Nakajima, H.; Kurokawa, T.) \|\| Grad. Sch. of Biomed. Eng., Tohoku Univ., Sendai, Japan (Kojima, T.; Omori, A.; Saijo, Y.)
Abstract	Echo-Dynamography (EDG) is a smart visualization technique in echocardiography in which two-dimensional distribution of blood flow vectors in cardiovascular system is deduced by applying fluid dynamics theories into Doppler velocity datasets. Previous validation studies such as numerical simulation of free jet model or model circulation were too simple to reproduce unstable and asymmetrical flow in left ventricle. In the present study, virtual color Doppler echocardiography is generated from PC-MRA (phase contrast magnetic resonance angiography) datasets. EDG is applied on virtual Doppler data and the blood flow vectors are compared with those of the original PC-MRA data. EDG-derived blood flow vectors showed similar pattern as the original PC-MRA data when blood flow velocity had high value. The errors were caused from underestimating the magnitude of vortex flow component in the flow field near the boundary of the left ventricular wall. The results also indicated that apical long axis view had small error compared with parasternal long axis view. Despite EDG method causes small errors, it provides important information on blood flow dynamics in most parts.
Starting Page	105
Ending Page	108
File Size	1159932
Page Count	4
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6609448
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blood flow Probes Doppler effect Filling Vectors Echocardiography Image color analysis
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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