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From IMRT to IGRT: frontierland or neverland?
C Clifton Ling1, Ellen Yorke, Zvi Fuks
1Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA. lingc@mskcc.org
Summary
Image-guided radiotherapy (IGRT) offers advanced imaging for improved treatments. Further clinical studies are essential to confirm its benefits for evidence-based medicine and advanced radiotherapy techniques.
Area of Science:
- Oncology
- Radiotherapy
- Medical Imaging
Background:
- Growing interest in real-time image guidance in radiotherapy (IGRT) driven by advanced online imaging technologies.
- IGRT's potential to revolutionize radiotherapy by enabling hypo-fractionated or single-dose treatments.
Purpose of the Study:
- To address uncertainties surrounding competing IGRT systems and their features.
- To determine if a subset of ideal IGRT features is sufficient for specific clinical applications and disease sites.
Main Methods:
- Review of current IGRT system features and approaches.
- Analysis of the potential impact of IGRT on radiotherapy paradigms.
- Identification of the need for clinical studies to validate IGRT benefits.
Main Results:
- Commercial availability of advanced online imaging technologies fuels IGRT enthusiasm.
- IGRT may facilitate hypo-fractionated or single-dose treatments, representing a paradigm shift.
- Uncertainty exists regarding the optimal features and approaches for various IGRT systems and applications.
Conclusions:
- IGRT holds significant promise for advancing radiotherapy techniques.
- Clinical studies are crucial for quantifying the benefits of IGRT for evidence-based decision-making.
- Further research is needed to define the ideal IGRT system configurations for specific clinical needs.