Abstract #2832

The feasibility of correcting for through-plane heart motion on phase contrast aortic blood flow measurements using feature tracking cine-MRI

Alexander Johansson¹, Frida Svensson^2,3, Åse Johnsson^3,4, and Kerstin Magdalena Lagerstrand^2,3

¹Dept of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden, Sahlgrenska University Hospital, Gothenburg, Sweden, ²Dept. of Medical Physics and Techniques, Sahlgrenska University Hospital, Gothenburg, Sweden, Sahlgrenska University Hospital, Gothenburg, Sweden, ³Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ⁴Dept of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden, Sahlgrenska University Hospital

Phase contrast measurements are prone to velocity offsets due to through-plane motion of the heart. Here we present a promising method for correction of through-plane heart motion on phase contrast aortic blood flow measurements. The method, which utilizes the inherent information in conventional cine MR images for tracking of the aortic valve, was shown to be both robust and accurate. The reliability, but also the availability of the method makes it an attractive tool for correction of velocity offsets due to through-plane heart motion.

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