Can blood pressure readings be used to calculate ESV and EDV?

Yes, blood pressure readings can be used to calculate End Systolic Volume (ESV) and End Diastolic Volume (EDV) of the left ventricle. This can be done using the following equations:

ESV = (SBP/4) + (EDP/3)

EDV = (DBP/3) + (ESV)

Where:

- SBP is the systolic blood pressure

- DBP is the diastolic blood pressure

- EDP is the end diastolic pressure

These equations are based on the assumption that the left ventricle is a spherical chamber and that the pressure-volume relationship of the ventricle is linear. While these assumptions are not strictly true, they provide a reasonable approximation of ESV and EDV.

Calculating ESV and EDV can be helpful in assessing the function of the left ventricle. For example, an increased ESV may indicate that the heart is not contracting properly, while an increased EDV may indicate that the heart is not filling properly.