Advanced Brachytherapy Physics - Vienna 2016

MRI

B /Ai d fi iti • one r e n on poor • Must have compatible catheters and applicators  M till d CT t t l li ti ay s nee o ge oca za on  Issue with prosthesis and dental work

• No electron density (might not be an issue for high energy brachytherapy, 192 Ir and over) • Distortions: non-homogeneity of main magnetic field across the volume, spatial non-linearity of gradients. • Voxel size and proton density: related to strength of signals • Partial volume effect • Chemical-shift artefacts; Motion artefacts; Field of view artefacts; RF artefacts