Abstract #0464

Added Value of Phase-Contrast MRI based Turbulent Kinetic Energy Quantification for the Assessment of Aortic Stenosis Severity

Alexander Gotschy^1,2, Christian Binter¹, Simon H Sündermann³, Michelle Frank², Felix C Tanner², Robert Manka², and Sebastian Kozerke¹

¹Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, ²Department of Cardiology, University Hospital Zurich, Zurich, Switzerland, ³Division of Cardiovascular Surgery, University Hospital Zurich, Zurich, Switzerland

Aortic stenosis (AS) is the most prevalent valvular heart disease. Risk stratification and the decision for valve replacement are mostly based on echocardiography and symptomaticity. This work investigates the additional value of quantifying Turbulent Kinetic Energy (TKE) for the assessment of AS severity beyond echocardiographic measures. TKE was confirmed to be significantly elevated in patients with AS compared to controls. While TKE showed only weak correlation with the echocardiographic Mean Pressure Gradient, TKE allowed to discriminate the impact of bicuspid aortic valves and aortic dilatation on energy loss in AS patients; effects which are not assessable by standard echocardiographic measures.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.