International consensus defines target volumes for skull base chordoma radiotherapy
PTCOG experts recommend two CTVs covering the clivus and full preoperative tumor bed with anatomy-adapted margins after surgery.
Tag
contouring-guidelines
International consensus standardizes 3D target volumes for low-dose RT of tendinitis and bursitis
IBTVG experts defined reproducible CT-based GTV, CTV and PTV concepts for common tendinitis and bursitis sites treated with low-dose radiotherapy.
Updated level IVa contouring reduced predicted hypothyroidism risk in nasopharyngeal cancer
Updated level IVa delineation reduced predicted hypothyroidism from 43.9% to 34.9% without compromising target coverage.
Most glioblastoma recurrences clustered within 10 mm of the original GTV
In 201 recurrent glioblastomas, 80% required no more than 10.4 mm expansion to encompass 80% of recurrence volume.
Omitted guideline-recommended sectors drove local failure after sacral SBRT
Seventy-three percent of failures after nonadherent sacral contouring involved sectors that guidelines recommended including in the clinical target volume.
T1-weighted MRI plus CT best automated EPTN neuro-oncology organ contouring
A dual-input MRI–CT model segmented 25 neurological organs with a median Dice score of 0.80 and surface Dice of 0.84.