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Updated: Feb 7, 2026
07:16
Isolation of Cancer Stem Cells From Human Prostate Cancer Samples
Published on: March 14, 2014
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Intensity-modulated radiotherapy for prostate cancer
Ben W Fischer-Valuck1, Yuan James Rao1, Jeff M Michalski1
1Department of Radiation Oncology, Washington University School of Medicine, St. Louis, USA.
Translational Andrology and Urology
|July 28, 2018
Summary
Intensity-modulated radiation therapy (IMRT) has advanced prostate cancer treatment, offering precise radiation delivery to tumors while sparing healthy organs. This technique improves outcomes and reduces side effects compared to older methods.
Area of Science:
- Radiation Oncology
- Medical Physics
Background:
- Radiation therapy (RT) has evolved significantly for localized prostate cancer treatment.
- Early 2-dimensional (2D) and 3-dimensional conformal RT (3D-CRT) faced limitations in dose distribution, leading to high rectal and bladder radiation doses.
Purpose of the Study:
- To review the technical aspects of intensity-modulated radiation therapy (IMRT) planning and delivery for prostate cancer.
- To summarize the supporting literature for IMRT in prostate cancer treatment.
Main Methods:
- Review of technological advancements in RT for prostate cancer.
- Analysis of treatment evolution from 2D RT to 3D-CRT and IMRT.
- Evaluation of clinical trial data on IMRT efficacy and toxicity.
Main Results:
- Intensity-modulated radiation therapy (IMRT) enables precise radiation delivery, 'painting' dose onto the prostate tumor.
- IMRT allows for dose escalation with improved tumor control and reduced toxicity compared to 3D-CRT.
- IMRT is associated with favorable toxicity profiles and is considered safe for hypofractionated RT and pelvic lymph node radiation.
Conclusions:
- IMRT represents a significant advancement in external beam radiation therapy for prostate cancer.
- This technique facilitates dose-escalated RT with superior dose conformity and reduced side effects.
- IMRT is the current standard of care, offering improved outcomes and safety in prostate cancer management.
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