Small photon field dosimetry for stereotactic radiosurgery.
Performing and assuring the quality of the planning and delivery of stereotactic radiosurgery with photon beams requires accurate evaluation of beam parameters, usually including output factors, tissue-phantom ratios and off-axis ratios, and measurement of actual dose distributions from simulated treatments. For the small photon fields used in radiosurgery, these measurements require special equipment and techniques, which are described in this review.
Vanderbilt Clinic, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
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Duggan
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Coffey
D006801:Humans; D017785:Photons; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation; D016634:Radiosurgery; D013238:Stereotaxic Techniques