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Updated: Jul 11, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
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[Target volume for adjuvant radiotherapy after prostatectomy].

A Bossi1

  • 1Département de Radiothérapie, Institut Gustave-Roussy, 39, rue Camille-Desmoulins, 94805, Villejuif, France. alberto.bossi@igr.fr

Cancer Radiotherapie : Journal De La Societe Francaise De Radiotherapie Oncologique
|September 25, 2007
PubMed
Summary

Adjuvant radiation therapy after prostatectomy can reduce cancer progression in high-risk patients. New guidelines standardize target volume definition for post-operative irradiation, improving consistency in treatment planning.

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Area of Science:

  • Radiation Oncology
  • Urologic Oncology
  • Medical Physics

Background:

  • Radical prostatectomy is effective for localized prostate cancer but has failure rates of 20-40%.
  • Local failure, indicated by rising PSA levels, is a concern, especially in patients with adverse pathological features.
  • Adjuvant irradiation is proven to reduce progression risk in high-risk patients post-surgery.

Purpose of the Study:

  • To establish standardized guidelines for defining the "prostate bed" target volume in postoperative irradiation.
  • To reduce inter-observer variability in target delineation for future clinical trials.
  • To promote a multidisciplinary approach involving surgeons, pathologists, and radiation oncologists.

Main Methods:

  • Development of guidelines by the Genito-Urinary Working Party of the Radiation Oncology Group (ROG-EORTC).

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  • Consensus on recommendations for target volume contouring in postoperative irradiation.
  • Emphasis on utilizing pathological data (e.g., extraprostatic extension, positive margins) and surgical markers (e.g., metallic clips).

    • Main Results:

    • A consensus has been reached on a set of recommendations for target volume delineation.
    • Guidelines aim to standardize the definition of the "prostate bed" for postoperative radiotherapy.
    • The recommendations facilitate a more consistent approach to treatment planning.

    Conclusions:

    • Standardized guidelines are crucial for consistent and effective postoperative irradiation in prostate cancer patients.
    • Multidisciplinary collaboration and precise target delineation are key to optimizing adjuvant radiotherapy outcomes.
    • These guidelines will aid in reducing variability and improving future clinical trial design for prostate cancer radiotherapy.