Doppler tissue imaging to predict myocardial recovery during mechanical circulatory support Emmanuelle Vermes, MD, Rémi Houël, MD, Marc Simon, MD, Paul.

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Presentation transcript:

Doppler tissue imaging to predict myocardial recovery during mechanical circulatory support Emmanuelle Vermes, MD, Rémi Houël, MD, Marc Simon, MD, Paul Le Besnerais, MD, Daniel Loisance, MD The Annals of Thoracic Surgery Volume 70, Issue 6, Pages 2149-2151 (December 2000) DOI: 10.1016/S0003-4975(00)02159-7

Fig 1 Example of color M-mode images of anterior wall obtained in the transgastric view (0°) with pump flow at 2.5 L/min. The color bar on the left side of the image shows the range of velocity in cm/s. The left ventricular wall is displayed alternatively in red and blue as it moves towards and away, respectively, from the tranducer. Velocity gradient was defined as the slope of linear regression of the myocardial velocity between endocardium (End) and epicardium (Epi). The Annals of Thoracic Surgery 2000 70, 2149-2151DOI: (10.1016/S0003-4975(00)02159-7)

Fig 2 Changes in MVG (/s) and EV (cm/s) during pump flow changes for both patients. Increasing in MVG and EV occurs while pump flow is decreased in patient 1. In contrast, MVG and EV remain unchanged in patient 2. (EV = peak endocardial systolic velocity; LV = left ventricular; MVG = transmyocardial systolic velocity gradient.) The Annals of Thoracic Surgery 2000 70, 2149-2151DOI: (10.1016/S0003-4975(00)02159-7)