Abstract #1957

REPRODUCIBILITY OF A SINGLE FINITE ELEMENT METHODOLOGY USED TO CALCULATE SEVERAL CARDIOVASCULAR PARAMETERS FROM 4D FLOW MRI DATA.

Julio Sotelo^1,2,3, Rodrigo Herrera¹, Cristian Montalba¹, Juan Urbina^1,4, Joaquin Mura^1,3, Daniel Hurtado^3,5,6, and Sergio Uribe^1,3,4,6

¹Biomedical Imaging Center, Pontificia Universidad Catolica de Chile, Santiago, Chile, ²Department of Electrical Engineering, Pontificia Universidad Catolica de Chile, Santiago, Chile, ³Millennium Nucleus for Cardiovascular Magnetic Resonance, Pontificia Universidad Catolica de Chile, Santiago, Chile, ⁴Department of Radiology, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile, ⁵Department of Structural and Geotechnical Engineering, Pontificia Universidad Catolica de Chile, Santiago, Chile, ⁶Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Catolica de Chile, Santiago, Chile

Several cardiovascular parameters can be calculated using multiple approaches from 4D flow MRI data. Usually the calculation of these parameters is time consuming, which may affect the reproducibility of the results. Recently, we proposed a novel methodology based on finite elements that allows obtaining several quantitative cardiovascular parameters along the entire aorta from a single segmentation of 4D flow data. Using this methodology, our results are accurate, and reproducible. We showed that we did not find statistical differences between manual and automatic measurements for geometrical analysis. Furthermore, a 93.7% and 81.2% of cardiovascular parameter shown strong and excellent correlation for intra and for inter-observer analysis respectively, providing a robust and consistent results.

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