Assessment of Valvular Regurgitation Using Cine Magnetic Resonance Imaging Coupled with Phase Compensation Technique: Comparison with Doppler Color Flow Mapping

Author:

Ohnishi Shusaku1,Fukui Sugao1,Kusuoka Hideo2,Kitabatake Akira2,Inoue Michitoshi3,Kamada Takenobu2

Affiliation:

1. The Division of Cardiology, Oriono-Izumi Hospital, Izumi, Osaka

2. The First Department of Medicine, Osaka University Medical School, Fukushima, Osaka

3. Department of Medical Information Science, Osaka University Hospital, Fukushima, Osaka, Japan

Abstract

To elucidate whether or not a newly developed technique in cinematic-displayed (cine) magnetic resonance imaging (MRI) can improve the semiquantitative evaluation of valvular regurgitant flow, 20 patients with valvular lesions were studied. Three pulse sequences of cine MRI, ie, standard, short echo time (TE), and rephasing scans, were compared with reference obtained by Doppler color flow mapping. Short TE technique and rephasing scan technique improved image quality remarkably as compared with standard technique. Each of the three cine MRI techniques showed good correlation with the Doppler method (p< 0.001). However, short TE and rephasing scan techniques gave a faithful estimation of the extent as compared with the Doppler method, whereas standard technique overestimated the regurgitation. Thus, cine magnetic resonance imaging with phase compensation technique can be utilized for the semiquantitative assessment of valvular regurgitation in a manner similar to that of Doppler color flow mapping.

Publisher

SAGE Publications

Subject

Cardiology and Cardiovascular Medicine

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4. Valvular Heart Disease;Cardiovascular Magnetic Resonance Imaging;2008

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