Table 3.
Difference of AUCs between Adherent and Nonadherent FTV Change Subsets
| Image Quality Factor | Difference of AUCs for FTV Change at T1 | Difference of AUCs for FTV Change at T2 | ||||
|---|---|---|---|---|---|---|
| Estimate | 95%CI (LL, UL) | P Value | Estimate | 95%CI (LL, UL) | P Value | |
| Acquisition Duration | 0.00 | (−0.09, 0.10) | .966 | 0.05 | (−0.05, 0.15) | .347 |
| Early Phase Timing | 0.04 | (−0.05, 0.15) | .407 | 0.04 | (−0.05, 0.13) | .444 |
| FOV | −0.01 | (−0.12, 0.11) | .904 | 0.06 | (−0.05, 0.17) | .251 |
| Resolution | 0.03 | (−0.06, 0.11) | .505 | 0.01 | (−0.06, 0.10) | .725 |
| Contralateral Image Quality | 0.06 | (−0.02, 0.14) | .146 | 0.04 | (−0.04, 0.11) | .389 |
| Patient Motion | 0.08 | (−0.12, 0.25) | .462 | −0.18 | (−0.30, −0.01) | .008* |
| Contrast Administration | −0.15 | (−0.31, 0.10) | .135 | −0.10 | (−0.32, 0.18) | .493 |
| Combined Factors | 0.06 | (−0.02, 0.13) | .149 | 0.04 | (−0.04, 0.11) | .295 |
Abbreviations: AUC, area under the curve; CI, confidence interval; FOV, field of view; FTV, functional tumor volume; LL, lower limit; UL, upper limit.
Difference of AUCs between adherent and nonadherent subsets was calculated as AUC of adherent subset minus AUC of nonadherent subset.
*P < .05.