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PSA responses suggest long-term cancer control rates will be excellent (awaiting data from long-term studies)
One-millimeter accuracy protects surrounding tissues
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Intensity-Modulated Radiotherapy (IMRT)
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10+ year cancer-control outcomes inferior to brachytherapy; increasing the dose using image-guidance may improve results
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Calypso-Guided EEBRT/IMRT
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10+ year cancer-control outcomes inferior to brachytherapy; Calypso guidance may allow increase dose with improved results
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Excellent cancer-control rates with 5-10 year follow-up
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Excellent cancer control rates with 10-15 year follow-up
Seeds positioned with 3-5 millimeters accuracy; occasionally some seeds migrate to the lung(s)
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