Figure 1. In-field recurrence (Vr) outside of PET-BTV.
a) Pretreatment PETCT (CT data set not shown). Vr mapped in black from registered failure scan. Failure scan was rigidly registered after using mandibles. Mandible from failure scan is outlined in brown. b) IMRT treatment planning CT scan. Targets: PTV 70Gy is pink, PTV 64Gy is green, & PTV 60Gy is blue. 70Gy iso dose line (IDL) is in yellow & 60Gy IDL is in fuchsia. Vr is black. C) Failure CT scan with Vr in black.