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Right Ventricle: Difference between revisions
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With this method, the percentage difference in the surface traced by the RV measured during systole and diastole is measured. Here again the apical 4CH is used for accuracy. The difference in surface limited to less than 35%, then this fits a reduced function. This method is frequently used in clinical practice. | With this method, the percentage difference in the surface traced by the RV measured during systole and diastole is measured. Here again the apical 4CH is used for accuracy. The difference in surface limited to less than 35%, then this fits a reduced function. This method is frequently used in clinical practice. | ||
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![[Image:RVFAC01.png|600px]] | |||
Good RV function | |||
![[Image:RVFAC02.png|600px]] | |||
Decreased RV function | |||
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==Dp/DT== | ==Dp/DT== | ||
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The normal values of left and right ventricular differences. Due to the high pressures which must generate the LV, the isovolumetric times of the LV relatively long. The RV has it in the normal situation easier, and therefore the index also lower average at around 0:28. | The normal values of left and right ventricular differences. Due to the high pressures which must generate the LV, the isovolumetric times of the LV relatively long. The RV has it in the normal situation easier, and therefore the index also lower average at around 0:28. | ||
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[[Image:RVMPI.png]] | |- | ||
![[Image:RVMPI.png]] | |||
RV MPI measured using TDI and PW in TVannulus. | RV MPI measured using TDI and PW in TVannulus. | ||
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Click [http://csecho.ca/cardiomath/?eqnHD=echo&eqnDisp=mpiteirv '''here'''] for MPI calculation. | Click [http://csecho.ca/cardiomath/?eqnHD=echo&eqnDisp=mpiteirv '''here'''] for MPI calculation. | ||