Abstract #4773

4D Flow MRI based aortic wall shear stress analysis using two different software tools and datasets from MRI scanners of two different appliance brands

Michael Peter Beldoch¹, Thekla Helene Oechtering¹, Victoria Schultz¹, Peter Hunold¹, Joerg Barkhausen¹, and Alex Frydrychowicz¹

¹Clinic for Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany

Wall shear stress (WSS) is an increasingly used vessel wall parameter derived from 4D Flow-MRI data. There is no reference standard for evaluating WSS and different software approaches are available. However, their comparability is not known. Hence, it was the aim of this study to compare two available software tools (GTFlow and FlowTool). To achieve this goal, data from 21 healthy volunteers scanned on MRI scanners of different vendors were analyzed with respect to average and segmental WSS. Results showed good agreement between tools.

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