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The Physics of Radiosurgery
1Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA
Seminars in Radiation Oncology
|July 1, 1995
Summary
Stereotactic radiosurgery offers a non-invasive treatment for brain lesions. Advances in technology may expand its use to fractionated radiotherapy for larger lesions and beyond the head.
Area of Science:
- Neurosurgery
- Radiation Oncology
- Medical Physics
Background:
- Stereotactic radiosurgery (SRS) has been a cornerstone for treating intracranial lesions non-invasively for over 40 years.
- The evolution of SRS includes diverse radiation modalities and expanded lesion targets.
- Understanding the unique characteristics and limitations of each radiation modality is crucial for effective treatment planning and delivery.
Purpose of the Study:
- To review the evolution and current applications of stereotactic radiosurgery.
- To compare the dose distributions and applicability of different radiation modalities used in SRS.
- To explore the potential of recent technological advancements in extending radiosurgery techniques.
Main Methods:
- Comparative analysis of dose distributions achievable with different SRS radiation modalities.
- Review of technological advancements in treatment planning, immobilization, and beam delivery.
- Discussion of the expanding scope of stereotactic treatments.
Main Results:
- Each radiation modality possesses distinct physical characteristics and limitations influencing treatment planning.
- Comparisons reveal specific domains where different modalities are best suited.
- Technological progress promises to enhance SRS capabilities.
Conclusions:
- Recent developments in treatment planning, immobilization, and beam delivery are paving the way for fractionated precision radiotherapy.
- These advancements may enable the treatment of larger intracranial lesions.
- The future of stereotactic techniques may extend beyond cranial applications.