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MRI: Planning
Advantages
Improved characterization of soft tissues compared with CT
MR distortion assessment/correction algorithms/co-
registration/fusion can improve these technical issues
DCE-MRI & diffusion MRI may contribute to characterization of
tumour sub-regions
Ultrafast cine MR sequences may define temporal patterns of
target & organ at risk deformity and variations in spatial
location
PET/MRI GTV combined may be provide a more accurate
assessment of tumour burden. (New lesions in 15%/Stage
chane in 12% of the patients by PET/CT).
Brændengen et al. Int J Radiat Oncol Biol Phys. 2011;81(4):e439-4
Bassi et al. Int J Radiat Oncol Biol Phys 2008;70(5):1423-6