Molecular Imaging 2017

Courtesy: Siemens Healthcare

mMR Biograph

PET camera integrated within

MRI scanner

Challenges:



Changes in path of 511 keV

electrons



Heating & vibration



Interference with electronics

Redesign:



New avalanche photodiodes



Electronics



Temperature control



RF shielding around PET

Vandenberghe et al. Phys Med Biol 2015; 60:R115-154