Image-guided conformation arc therapy for prostate cancer: Early side effects

  • Soete G
  • Verellen D
  • Michielsen D
 et al. 
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Abstract

Purpose: To evaluate early side effects in prostate cancer patients treated with image-guided conformation arc therapy (IGCAT) using a minimultileaf collimator and daily X-ray-assisted patient positioning. Methods and Materials: Between May 2000 and November 2004, 238 cT1-T3N0M0 tumors were treated with doses of 70 or 78 Gy. Seventy patients also received neoadjuvant or concurrent hormonal treatment. Median follow-up is 18 months (range, 4-55 months). The Radiation Therapy Oncology Group and the European Organization for Research and Treatment of Cancer toxicity scoring system was used to evaluate early side effects. Results: Grade 1, 2, and >2 acute side effects occurred in 19, 6, and 0% (gastrointestinal) and 37, 16, and 0% (genitourinary) of the patients. No relation between radiation dose and early side effects was observed. Conclusion: Patients treated with image-guided conformation arc therapy experience a low rate of Grade 2 (i.e., requiring medication) early side effects. The definitive evaluation of late side effects and biochemical control requires further follow-up. © 2006 Elsevier Inc. All rights reserved.

Author-supplied keywords

  • Conformal radiotherapy
  • Image guided radiotherapy
  • Prostate cancer

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Authors

  • Guy Soete

  • Dirk Verellen

  • Dirk Michielsen

  • Bernard Rappe

  • Frans Keuppen

  • Guy Storme

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