CT-derived left ventricular global strain in aortic valve stenosis patients: A comparative analysis pre and post transcatheter aortic valve implantation

Journal of Cardiovascular Computed Tomography
Mohamed MarwanMartin Arnold

Abstract

We assessed the potential of CT strain to detect changes in myocardial function in patients referred for TAVI pre and post intervention. 25 consecutive patients with symptomatic aortic valve stenosis in whom TAVI had been performed were included in this analysis. Functional CT data sets acquired before and 3 to 6 months after TAVI were available. Multiphase reconstructions in increments of 10% of the cardiac cycle were rendered and transferred to a dedicated workstation (Ziostation2, Ziosoft Inc., Tokyo, Japan). For quantification of left ventricular strain, multiplanar reconstructions of the left ventricle in standard 4 chamber, 2 chamber as well as apical 3 chamber views were rendered. The perimeter of the left ventricle was traced dynamically through the cardiac cycle. Peak strain was calculated for each patient pre and post intervention. Furthermore, for quantification of 3-dimensional maximum principal strain, 2 volumetric regions of interests (VOI) were placed per each basal, mid and apical segment of the previously mentioned MPRs and peak maximal principal strain was calculated. Maximum principal strain as well as perimeter-derived longitudinal strain values in the three standard windows were averaged to obtain global st...Continue Reading

Citations

Sep 13, 2019·Cardiovascular Intervention and Therapeutics·Hiroyuki TakaokaYoshio Kobayashi
Apr 7, 2019·The International Journal of Cardiovascular Imaging·F AmmonM Marwan
Sep 21, 2019·The International Journal of Cardiovascular Imaging·Zvi PeledJonathan Lessick
Mar 7, 2021·Heart Failure Clinics·Michele Fusaro, Giovanni Tessarin

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