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Abstract #2857

Analysis of WSS variability subjected to changes of 4D flow parameters using a realistic aortic phantom.

Cristian Montalba1, Julio Sotelo1,2, Jesús Urbina1,3, Marcelo Andia1,3, Cristian Tejos1,2, Pablo Irarrázaval1,2, Israel Valverde4,5, and Sergio Uribe1,3

1Biomedical Imaging Center, Pontificia Universidad Católica de Chile, Santiago, Chile, 2Electrical Engineering Department, Pontificia Universidad Católica de Chile, Santiago, Chile, 3Radiology Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile, 4Hospital Virgen del Rocio, Universidad de Sevilla, Seville, Spain, 5Institute of Biomedicine of Seville, Universidad de Sevilla, Seville, Spain

The purpose of this work was to study the accuracy of the estimation of WSS calculated from 4D flow data acquired at different spatial and temporal resolutions. The data was acquired using a realistic thoracic aortic phantom in nine different hemodynamic conditions. We conclude that WSS measurements are more sensitive to changes in spatial resolution than in temporal resolution.

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