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Right Ventricle: Difference between revisions
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→Dp/DT
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==Dp/DT== | ==Dp/DT== | ||
These methods make use of determining the speed of the myocardium itself and determination of pressure differences between the compartments of the right heart. A simple physiological measure of RV function is the systolic pressure buildup in the time of the RV. This can be determined as Dp/DT, for this purpose, the systolic acceleration speed of the tricuspid insufficiency signal is determined during the isovolumetric contraction phase. This can be done by measuring the time interval in the continuous wave signal TR is between 1 and 2 m/s. | |||
Due to that, by definition, a differential pressure of 12mmHg is concerned, this size will be determined by dividing by 12, the measured time interval. Quite simply the pressure build-up is less than 400mmHg/sec then this is an indication for a reduced right ventricular function. | |||
==RV myocardial performance index (MPI)== | ==RV myocardial performance index (MPI)== | ||