Percentage Error in Estimation of AUC and CMRGlc by Various Formulas
| Percentage error of estimation | ||||||
|---|---|---|---|---|---|---|
| Parameter | CMRGlc (%) (n = 192) | |||||
| Formula | a | b | CV of R (%) (n = 101) | AUC (%) (n = 192) | Gray matter | White matter |
| Optimal set of parameters | 0.80 | 0.35 | 10.09 | 7.2 ± 5.7 | 8.9 ± 7.3 | 10.6 ± 9.0 |
| BSA correction | ||||||
| Du Bois and Du Bois (11) | 0.725 | 0.425 | 10.12 | 7.3 ± 5.8 | 9.0 ± 7.6 | 10.6 ± 9.3 |
| Gehan and George (12) | 0.42246 | 0.514565 | 10.30 | 7.3 ± 5.9 | 9.0 ± 7.4 | 10.7 ± 9.1 |
| Mosteller (13) | 0.5 | 0.5 | 10.26 | 7.3 ± 5.9 | 9.0 ± 7.5 | 10.7 ± 9.1 |
| Fujimoto and Watanabe (10) | 0.444 | 0.663 | 10.87 | 8.7 ± 6.3 | 10.4 ± 7.6 | 12.2 ± 9.3 |
| Body weight correction | 0 | 1 | 13.09 | 12.1 ± 9.2* | 13.8 ± 10.1* | 16.2 ± 12.4* |
↵* P < 0.001 (1-way ANOVA, with post hoc Scheffé test) for comparison with optimal set of parameters.