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Development of Prostate Bed Delineation Consensus Guidelines for Magnetic Resonance Image-Guided Radiotherapy and
Kobika Sritharan1, Hafid Akhiat2, Declan Cahill3
1Royal Marsden NHS Foundation Trust, Sutton, United Kingdom; Division of Radiotherapy and Imaging, Institute of Cancer Research, Sutton, United Kingdom.
International Journal of Radiation Oncology, Biology, Physics
|August 26, 2023
Summary
Interobserver variability in prostate bed contouring on MRI exists but is lower than previously reported. Developed consensus guidelines improved contouring concordance, though further strategies are needed for optimal results.
Area of Science:
- Radiation Oncology
- Medical Imaging
- Prostate Cancer Treatment
Background:
- Magnetic resonance imaging (MRI) is increasingly used in radiotherapy planning, especially with MRI-guided systems.
- Significant heterogeneity exists in current guidelines for defining the prostate bed clinical target volume (CTV).
Conclusions:
- Interobserver variability in prostate bed contouring on MRI among international experts is lower than previously reported.
- Developed consensus guidelines have improved contouring concordance.
- Further strategies like education and contouring atlases are recommended to minimize persistent IOV.
