|
Physiological versus cardiological systole and diastole |
|
| Physiological systole |
Cardiological systole |
|
|
|
| Isovolumic contraction |
From M1 to A2, including: |
| Maximal ejection |
Major part of isovolumic contraction* |
| Maximal ejection |
|
| Reduced ejection |
|
| Physiological diastole |
Cardiological diastole |
| Reduced ejection |
A2 - M1 interval (filling phases included) |
| Isovolumic relaxation |
|
| Filling phases |
|
|
* Note that M1 occurs with a definite albeit short delay after the start of the LV contraction. Modified from Opie LH. Mechanisms of cardiac contraction and relaxation. In: Braunwald E, Zipes DP, Libby P, Bonow RO, eds. Heart Disease. 7th ed. WB Saunders Company 2005, Chap.19:457–489, page 474. | |
Bombardini et al. Cardiovascular Ultrasound 2008 6:15 doi:10.1186/1476-7120-6-15 |
|