Image Guided Radiation Therapy For Prostate Cancer
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During the 7 to 8 weeks of conformal radiotherapy for prostate carcinoma, the prostate has an intra-pelvic motion which is not detectable by the conventional portal imaging. This prostate motion may lead to a mistargeting, which possibly decreases the local control. On the other hand, the new 3D on board imaging (3D OBI) allows to localize the target but is expensive. The cost/effectiveness ratio is not well established, as well as the frequency of using such imaging during the course of radiation.
Condition or disease
Procedure: Control position by 3DOBI before the fractionProcedure: Standard imaging
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Ages Eligible for Study:
Child, Adult, Older Adult
Sexes Eligible for Study:
Accepts Healthy Volunteers:
intermediate / high risk group
N0 or N -
treatment by conformal radiotherapy (including or not IMRT), with or without androgen deprivation