The formula to calculate the End-Systolic Volume (ESV) is:
\[ ESV = EDV - SV \]
Where:
End-Systolic Volume (ESV) is the volume of blood remaining in a ventricle of the heart after contraction (systole). It is an important parameter in cardiology, as it helps in assessing the heart's function and efficiency.
Let's say the End-Diastolic Volume (EDV) is 120 mL, and the Stroke Volume (SV) is 70 mL. Using the formula:
\[ ESV = 120 - 70 = 50 \, \text{mL} \]
So, the End-Systolic Volume (ESV) is 50 mL.
Definition: End-systolic volume (ESV) is the volume of blood in a ventricle at the end of contraction, or systole, and the beginning of filling, or diastole.
Formula: \( ESV = EDV - SV \)
Example: \( ESV = 120 - 70 \)
Definition: End-systolic volume index (ESVI) is the end-systolic volume normalized to body surface area.
Formula: \( ESVI = \frac{ESV}{BSA} \)
Example: \( ESVI = \frac{50}{1.8} \)
Definition: End-diastolic volume (EDV) is the volume of blood in the ventricle at the end of filling, or diastole.
Formula: \( EDV = ESV + SV \)
Example: \( EDV = 50 + 70 \)
Definition: This calculation determines the end-diastolic volume based on stroke volume and end-systolic volume.
Formula: \( EDV = SV + ESV \)
Example: \( EDV = 80 + 60 \)
