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Optimizing MR-Guided Radiotherapy for Breast Cancer Patients
Maureen L Groot Koerkamp1, Jeanine E Vasmel1, Nicola S Russell2
1Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, Netherlands.
Frontiers in Oncology
|August 28, 2020
Summary
Magnetic resonance (MR)-guided radiotherapy may improve breast cancer treatment by enhancing tumor visibility during neoadjuvant partial breast irradiation (PBI). This approach aims to reduce irradiated tissue and late toxicity for patients undergoing PBI.
Area of Science:
- Oncology
- Radiotherapy
- Medical Imaging
Background:
- Current breast cancer radiotherapy research explores neoadjuvant partial breast irradiation (PBI) over adjuvant PBI.
- The goal is to minimize irradiated breast tissue volume and reduce late treatment-related toxicity.
- Advancements in magnetic resonance (MR)-guided radiotherapy systems offer potential for further volume reduction.
Purpose of the Study:
- To discuss the application of MR guidance in breast radiotherapy planning and treatment.
- To focus on the specific use of MR-guided radiotherapy for neoadjuvant PBI.
- To explore how MR guidance can enhance tumor visibility and precision in PBI.
Main Methods:
- Review of current practices and emerging technologies in breast radiotherapy.
- Discussion of MR-guided radiotherapy systems, including MR-linac and 60Co hybrid machines.
- Analysis of the integration of MR guidance throughout the breast radiotherapy pathway.
Main Results:
- MR guidance can potentially improve tumor visibility before and during treatment.
- Dedicated MR-guided RT systems may further reduce the irradiated breast tissue volume.
- Enhanced visualization can lead to more precise targeting in neoadjuvant PBI.
Conclusions:
- MR-guided radiotherapy holds promise for optimizing neoadjuvant PBI.
- Improved tumor visibility with MR guidance can enhance treatment efficacy and reduce toxicity.
- This technology represents a significant advancement in breast cancer radiotherapy planning and delivery.
