Comparison of EDV, ESV, and LVEF for Conventional SPECT, IQ•SPECT, and Echocardiography
| Parameter | Conventional | IQ | Echo | Conventional vs. IQ | Conventional vs. echo | IQ vs. echo |
| QGS | ||||||
| EDV (mL) | 77.0 ± 39.1 | 74.2 ± 36.8 | 110.6 ± 38.3 | r = 0.98 | r = 0.77 | r = 0.77 |
| ESV (mL) | 30.0 ± 29.2 | 27.4 ± 27.3 | 40.6 ± 26.7 | r = 0.97 | r = 0.81 | r = 0.82 |
| LVEF (%) | 65.4 ± 13.8 | 68.4 ± 15.2 | 64.8 ± 11.6 | r = 0.86 | r = 0.63 | r = 0.64 |
| CardioREPO | ||||||
| EDV (mL) | 87.9 ± 35.6 | 82.8 ± 34.0 | 110.6 ± 38.3 | r = 0.98 | r = 0.77 | r = 0.75 |
| ESV (mL) | 28.1 ± 22.6 | 27.0 ± 22.4 | 40.6 ± 26.7 | r = 0.98 | r = 0.78 | r = 0.77 |
| LVEF (%) | 69.5 ± 10.6 | 69.5 ± 11.0 | 64.8 ± 11.6 | r = 0.80 | r = 0.60 | r = 0.65 |
| QGS (%) | ||||||
| All LVEF | 65.4 ± 13.8 | 68.4 ± 15.2 | 64.8 ± 11.6 | P = 0.0002 | NS | P = 0.019 |
| Small-heart LVEF | 75.0 ± 9.6 | 79.5 ± 8.3 | 70.1 ± 6.8 | P = 0.0005 | P = 0.0076 | P < 0.0001 |
| CardioREPO (%) | ||||||
| All LVEF | 69.5 ± 10.6 | 69.5 ± 11.0 | 64.8 ± 11.6 | NS | P < 0.0001 | P < 0.0001 |
| Small-heart LVEF | 72.3 ± 9.0 | 74.3 ± 8.3 | 70.1 ± 6.8 | NS | NS | P = 0.0068 |
Conventional = conventional SPECT; echo = echocardiography; IQ = IQ•SPECT; NS = not statistically significant.
Data are mean ± SD.