Table 2.
The parameters of different regions from first-pass perfusion imaging (PWI) for quantitative evaluation of myocardial perfusion after acute myocardial infarction
| Regions | TTP (sec) | PIV (SI) | ISabs (SI/sec) | AUC15 (SI*sec) |
|---|---|---|---|---|
| AAR90' | 62.69±36.46* | 1.87±0.32* | 10.37±2.43* | 11.44±9.89* |
| AAR24h | 35.66 ±22.13 | 4.10±1.66 | 20.32±11.66 | 23.91±10.96 |
| VS90' | 12.30±6.29 | 6.89±0.88 | 45.12±13.97 | 51.20±9.56 |
| VS24h | 13.46±8.61 | 6.17±0.73 | 43.08±14.07 | 54.62±8.53 |
| VC90' | 8.27±2.34 | 14.56±2.12 | 96.88±25.90 | 133.27±20.17 |
| VC24h | 7.80±2.7 | 13.98±1.59 | 94.01±29.63 | 123.11±16.62 |
Data are presented as mean±SD
AAR: area at risk; VS: ventricular septum; VC: ventricular cavity; SI: signal intensity; TTP: time to peak; PIV: peak intensity value; ISabs: initial absolute maximal upslope; AUC15: area under curve from base to 15 seconds.
*: significant difference (P <0.001) as compared with AAR24h