How to plan 'prostate plan for RTOG' with CFIMRT

 RTOG 0415

A PHASE III RANDOMIZED STUDY OF HYPOFRACTIONATED 3D-CRT/IMRT VERSUS CONVENTIONALLY FRACTIONATED 3D-CRT/IMRT IN PATIENTS WITH FAVORABLE-RISK PROSTATE CANCER

Normal organ No more than  No more than No more than No more than

limit            15% volume     25% volume   35% volume    50% volume

                  receives dose  receives dose receives dose receives dose

                  that exceeds   that exceeds  that exceeds  that exceeds

Bladder                                                                             

Constraint          80 Gy            75 Gy          70 Gy          65 Gy

Rectum                                                                             

Constraint          75 Gy            70 Gy          65 Gy          60 Gy

Penile Bulb Mean dose less than or equal to 52.5 Gy

Dose Goal         Minimum PTV     Minimum CTV     Maximum

(Prescription)          dose                 dose               dose to PTV

                  (encompassing    (encompassing           

                  >=98% of PTV)     >=100% of                

                                      CTV)                  

                  73.8 Gy             73.8 Gy            79 Gy

1 The maximum dose must not be within an °»Organ at Risk°… such as the Rectum, Bladder, or Penile Bulb

GTV = Prostate CTV : Prostate PTV = CTV + 0.4-1.0 cm

Each ports

Methodology of adjusting Jaw

If collimator is rotated, and Jaw adjusted, its field will be resembled that of using MLC. Please show every image slices, and adjust it.

Adjust jaw rotaion

Adjust left jaw

Adjust lower jaw

 

 

last modification date: 2007/07/27