Doppler tissue imaging in hypertrophic cardiomyopathy and controls
| Variable | HCM | Control | p Value |
|---|---|---|---|
| Values are mean (SD). | |||
| Aa, late diastolic velocity of mitral annulus; DTI, Doppler tissue imaging; Ea, early diastolic velocity of mitral annulus; HCM, hypertrophic cardiomyopathy; transmitral E/lateral Ea, ratio of transmitral early left ventricular filling velocity to early diastolic velocity of lateral mitral annulus; transmitral E/septal Ea, ratio of transmitral early left ventricular filling velocity to early diastolic velocity of septal mitral annulus. | |||
| Lateral mitral annulus | |||
| Lateral Ea (cm/s) | 10 (3) | 18 (4) | <0.0001 |
| Lateral Aa (cm/s) | 11 (4) | 12 (3) | NS |
| Lateral Ea deceleration time (ms) | 117 (38) | 84 (19) | <0.0001 |
| Transmitral E/lateral Ea | 7.4 (3.2) | 4.3 (1.0) | <0.0001 |
| Septal mitral annulus | |||
| Septal Ea (cm/s) | 7 (2) | 12 (3) | <0.0001 |
| Septal Aa (cm/s) | 8 (3) | 10 (2) | <0.001 |
| Septal Ea deceleration time (ms) | 123 (30) | 101 (18) | <0.0001 |
| Transmitral E/septal Ea | 12.2 (9.6) | 6.3 (1.4) | <0.0001 |