HEART AND TECHY-RIGHT VENTRICULAR SIZE AND FUNCTION ASSESSMENT ECHO-PART 1

RIGHT VENTRICLE SIZE AND FUNCTION IN ECHOCARDIOGRAPHY




The right ventricle is a complex three-dimensional shape. Echocardiographic assessment of the right ventricle is more difficult than that of left ventricle because of the complex geometry and is divided into two parts: the inflow tract and the outflow tract, separated by the crista supraventricular.

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Echocardiographic imaging of RV function and measurement of ejection fraction has been difficult because of the complex form and motion pattern of the RV and problems with defining the endocardial surface of the thin RV free wall. Another important factor that complicates the interpretation of RV function is the varying loading conditions. In daily cardiology practice, RV function has traditionally been evaluated qualitatively by 2D echocardiography.

QUALITATIVE PARAMETERS TO ASSESS THE RV SIZE IN ECHOCARDIOGRAPHY:

A standard apical four-chamber is best to assess RV size compared with that of Left ventricle

In mildly enlarged condition right ventricle is slightly enlarged but not equivalent to LV

In moderately enlarged condition right ventricular size is equal to left ventricular size

In severely enlarged condition the right ventricle is very much enlarged compared to that of the left ventricle.




QUANTITATIVE PARAMETERS TO ASSESS THE RIGHT VENTRICLE IN ECHOCARDIOGRAPHY:

In quantitative parameters, the right ventricle is estimated at the end of diastole from Right ventricle focused apical four-chamber view

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The normal range of basal diameter is 2 to 2.8 and mid diameter is 2.7 to 3.3 and base to the apex is 7.1 to 7.9, a value more than above mentioned is considered as enlargement, the Main key point is measurements are measured from inner to the inner end.

For measuring quantitative RVOT Size PSAX is used.

In End-diastole a proximal diameter, more than 3.3 indicate enlargement and a distal diameter more than 2.7 indicates an enlargement in echocardiography

stay tuned with heart and techy..thank you...


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