Abstract #2857

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

Cristian Montalba¹, Julio Sotelo^1,2, Jesús Urbina^1,3, Marcelo Andia^1,3, Cristian Tejos^1,2, Pablo Irarrázaval^1,2, Israel Valverde^4,5, and Sergio Uribe^1,3

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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