Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Measurement of Flow Velocity and Flow Visualization with MR PC Image

MR PC 영상을 이용한 유체 흐름 분석

  • Kim, S.J. (Department of Biomedical Engineering, Seoul National University.) ;
  • Lee, D.H. (Department of Biomedical Engineering, Seoul National University.) ;
  • Min, B.G. (Department of Biomedical Engineering, Seoul National University.)
  • 김수정 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 이동혁 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 민병구 (서울대학교 대학원 협동과정 의용생체공학)
  • Published : 1997.05.23
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Abstract

Phase-contrast(PC) methods have been used for quantitative measurements of velocity and volume flow rate. In addition, phase contrast cine magnetic resonance imaging (MRI) combines the flow dependent contrast of PC MRI with the ability of cardiac cine imaging to produce images throughout the cardiac cycle. In this method, the through-plane velocity has been encoded generally. However, the accuracy of the flow data can be reduced by the effect of flow direction, finite slice thickness, resolution, pulsatile flow pattern, and so on. In this study we calculated the error caused by misalignment of tomographic plane and flow directon. To reduce this error and encode the velocity for more complex flow, we suggested 3 directional velocity encoding method.

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