Estimation of relative cardiovascular pressures using time-resolved three-dimensional phase contrast MRI
2001 (English)In: Magnetic Resonance in Medicine, ISSN 0740-3194, E-ISSN 1522-2594, Vol. 45, no 5, 872-879 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2001. Vol. 45, no 5, 872-879 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-26700DOI: 10.1002/mrm.1116Local ID: 11290OAI: oai:DiVA.org:liu-26700DiVA: diva2:247250