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Impact on margins?

Examples for registration uncertainties:

~ 0.5 mm for cranial

CT-CBCT

registration

(Sykes et al.,PMB 2009)

≤ 2 mm for cranial

CT-MR

registration

(Ulin et al., IJROBP 2010)

2 mm for

CT-MR

registration for rectal cancer

(Dean et al., BJR 2012)

~ 2 mm for

CT

-

MR

registration for prostate

(Nyholm et al., Radiat. Onc. 2009)

~ 5-7 mm for DIR

(Yeo et al., Med. Phys 2013)

Registration accuracy