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Implanted markers
Prostate and bony pelvis move
independently
Pelvic bony anatomy should not be
used as a surrogate for prostate
position.
Radiographic markers within the
prostate are stable
Markers improve accuracy and allows
significant PTV margin reduction.
Vigneault E
et al
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Litzenberg D
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Wu J, et al Radiother Oncol. 2001 61(2):127-33.
Alasti H, et al., IJROBP 2001 1;49(3):869-84.
Shallenkamp J. et al., IJROBP 2005 63, (3) 800-811
Chung PW, et al. IJROBP 2004 60(1):329-34.