2017_SBRT_Course Book
ICRU 91 2017: reporting
PTV median absorbed dose, D50%
•
• Dnear-max (and near-min) For PTV larger than or equal to 2 cm 3 , the volume nearmax represents 2 % of the PTV, as recommended in ICRU Report 83 (D2%). For PTV V of less than 2 cm 3 , near-max is an absolute volume of 35mm 3 , in which case D 35mm 3 is reported.
3.3 mm
3.3 mm
Both CTV and PTV DVH
•
3.3 mm
• No recommendation for Dv for prescription (e.g. 95% or 98%) • OAR near min and max, and recommend to report always 2 levels. If it is not clearly a parallel or serial structure than 3 levels should be reported • Paddick CI, also to GTV • For brain, also Dose gradient GI may be considered = PIVhalf/PIV
Made with FlippingBook Annual report