Abstract #1983

Displaced aortic flow and increased circumferential wall shear stress associate with ascending aortic dilatation in tricuspid aortic valve patients – a prospective clinical study

S. Petteri Kauhanen¹, Marja Hedman¹, Pekka Jaakkola², Ritva Vanninen¹, Petri Saari¹, and Timo Liimatainen³

¹Clinical Radiology, Kuopio University Hospital, Kuopio, Finland, ²Heart and Thoracic surgery, Kuopio University Hospital, Kuopio, Finland, ³Research Unit of Medical Imaging, Oulu University, Oulu, Finland

Four-dimensional (4D) flow was measured in 20 patients with dilated ascending aorta (AA) and in 20 controls. Aortic flow was displaced from the center line of the AA in patients with AA dilatation. Flow displacement was present in the proximal and tubular parts of AA. Total wall shear stress (WSS) was higher on the displaced side compared to the opposite side of the aorta. The circumferential WSS (WSSC) ratio to total WSS was higher in the inner curvature of dilated AA in the proximal part and WSSc was elevated in the whole aortic ring in the distal part of AA.

This abstract and the presentation materials are available to members only; a login is required.

Join Here