Peak enhancement phase on dynamic curves*
| Group | Center | Periphery |
|---|---|---|
| Patients before treatment | 6.0 ± 1.7 | 7.5 ± 2.5† |
| Patients after treatment | 4.2 ± 2.6 | 5.4 ± 3.1 |
| Control subjects | 4.0 ± 1.4 | 4.2 ± 1.4 |
* Data are the mean ± SD.
† P < .01, compared with posttreatment and control values.