New Noninvasive Method for Assessment of Left Ventricular Rotation
Oslo University Hospital · Johns Hopkins University · +2 more institutions
Abstract
BACKGROUND: Left ventricular (LV) torsion is due to oppositely directed apical and basal rotation and has been proposed as a sensitive marker of LV function. In the present study, we introduce and validate speckle tracking echocardiography (STE) as a method for assessment of LV rotation and torsion. METHODS AND RESULTS: Apical and basal rotation by STE was measured from short-axis images by automatic frame-to-frame tracking of gray-scale speckle patterns. Rotation was calculated as the average angular displacement of 9 regions relative to the center of a best-fit circle through the same regions. As reference methods we used sonomicrometry in anesthetized dogs during baseline, dobutamine infusion, and apical…
Citation impact
- FWCI
- 28.28
- Percentile
- 100%
- References
- 39
Authors
11- THThomas Helle-ValleCorresponding
Oslo University Hospital, Johns Hopkins University, Norwegian University of Science and Technology, Johns Hopkins Medicine
- JCJonas Crosby
Oslo University Hospital, Johns Hopkins University, Norwegian University of Science and Technology, Johns Hopkins Medicine
- TEThor Edvardsen
Oslo University Hospital, Johns Hopkins University, Norwegian University of Science and Technology, Johns Hopkins Medicine
- ELErik Lyseggen
Oslo University Hospital, Johns Hopkins University, Johns Hopkins Medicine
- BHBrage H. Amundsen
Oslo University Hospital, Johns Hopkins University, Norwegian University of Science and Technology, Johns Hopkins Medicine
Topics & keywords
- Medicine
- Rotation (mathematics)
- Cardiology
- Internal medicine
- Artificial intelligence