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Imaging protocols MRI and CT
Key issues when using CT or MRI for IGABT
HR-CTV
Rectum
CT
MR
Bladder
OAR
MRI: organ wall is visible
CT: organ border is visible
Target
MRI: HR-CTV, GTV
CT: only HR-CTV
(soft tissue depiction ↓)
Applicator
MRI
CT
patho-anatomical
Structures
MRI
CT ↓
Viswanathan et al. IJROBP 2007
Target, OARs, Applicator, Patho-anatomical structures
Imaging protocols CT and MRI, JCA Dimopoulos, P Petrow, Prague, Czech Republic, 22.10.2017 - 26.10.2017