Table 2. Comparison of left ventricular synchrony parameters in the three groups.
| Parameters | MI group (n=7) | UTMD group (n=8) | UTMD-Ang1 group (n=8) |
|---|---|---|---|
| Smid (%) | −7.3±2.2 | −8.7±2.5 | −10.5±2.4a |
| SRmid (s-1) | −16.9±4.7 | −19.8±5.4 | −23.8±5.9a |
| Sbase (%) | −20.1±5.1 | −19.2±4.8 | −18.2±5.0 |
| SRbase (s-1) | −45.3±7.1 | −43.7±7.5 | −41.8±6.9 |
| LSsd (ms) | 65.3±16.3 | 41.8±10.3a | 30.5±10.7ab |
| LSdif (%) | 26.7±8.9 | 18.2±4.5a | 13.5±4.1ab |
aCompared with the MI group (P<0.05). bCompared with the UTMD group (P<0.05). LV, left ventricular; MI, myocardial infarction; UTMD, ultrasound-targeted microbubble destruction; Smid, the strain of all the middle segments of LV; SRmid, the strain rate of all the middle segments of LV; Sbase, the strain of all the base segments of LV; SRbase, the strain rate of all the base segments of LV; LSsd, the standard deviation of all segments’ longitudinal strain; and LSdif, the maximum difference of all segments’ longitudinal strain.