Estimation of relative cardiovascular pressures using time‐resolved three‐dimensional phase contrast MRI
- 16 April 2001
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 45 (5), 872-879
- https://doi.org/10.1002/mrm.1116
Abstract
Accurate, easy‐to‐use, noninvasive cardiovascular pressure registration would be an important addition to the diagnostic armamentarium for assessment of cardiac function. A novel noninvasive and three‐dimensional (3D) technique for estimation of relative cardiovascular pressures is presented. The relative pressure is calculated using the Navier‐Stokes equations along user‐defined lines placed within a time‐resolved 3D phase contrast MRI dataset. The lines may be either straight or curved to follow an actual streamline. The technique is validated in an in vitro model and tested on in vivo cases of normal and abnormal transmitral pressure differences and intraaortic flow. The method supplements an intuitive visualization technique for cardiovascular flow, 3D particle trace visualization, with a quantifiable diagnostic parameter estimated from the same dataset. Magn Reson Med 45:872–879, 2001.Keywords
Funding Information
- Forum Scientum
- Swedish Foundation for Strategic Research
- Swedish Medical Research Council (09481)
- Swedish Heart and Lung Foundation (1998 41 604)
- Center for Industrial Information Technology at Linköping University (99.11)
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