Focal therapy for prostate cancer: the technical challenges

Area of Science:

• Oncology
• Radiation Oncology
• Medical Physics

Background:

• Focal therapy for prostate cancer is an alternative to whole gland treatment, potentially reducing toxicity and allowing dose escalation.
• Brachytherapy (low-dose-rate or high-dose-rate) is well-suited for focal therapy due to precise dose delivery and conformal distribution.
• Existing guidelines focus on patient selection, but technical aspects of focal brachytherapy lack standardization.

Purpose of the Study:

• To provide an overview of technical considerations for implementing focal brachytherapy services.
• To discuss critical topics for designing clinical trials in focal brachytherapy.
• To promote standardized methods for precise and accurate focal brachytherapy treatments.

Main Methods:

• Review of current practices and literature on focal brachytherapy.
• Identification of key technical challenges in target delineation, planning margins, and treatment planning.
• Discussion of essential elements for clinical trial design in focal brachytherapy.

Main Results:

• Significant lack of consensus on technical aspects like target volume delineation and planning margins.
• Potential for practice variability, hindering interpretation of multi-center outcome data.
• Identification of critical technical considerations for establishing a focal brachytherapy program.

Conclusions:

• Standardized technical guidelines are urgently needed for focal brachytherapy implementation.
• Consensus on methods is essential for reliable clinical trials and consistent patient outcomes.
• Further research and collaboration are required to define best practices in focal brachytherapy.