Comparison of tissue Doppler imaging of patients with polymyositis (PM) and dermatomyositis (DM).
| Mitral Annulus | PM, n = 11 | DM, n = 35 | p |
|---|---|---|---|
| Sm, cm/s | 7.55 ± 1.23 | 7.33 ± 1.40 | NS |
| Em, cm/s | 11.61 ± 2.06 | 10.14 ± 2.37 | NS |
| Am, cm/s | 9.13 ± 1.88 | 8.91 ± 1.81 | NS |
| Em/Am | 1.34 ± 0.47 | 1.21 ± 0.50 | NS |
| E/Em | 7.67 ± 3.59 | 8.45 ± 2.20 | NS |
Sm: peak myocardial systolic velocity; Em: early diastolic myocardial velocity; Am: late peak diastolic myocardial velocity; E: early transmitral diastolic velocity; NS: nonsignificant.