Whole body planar and 3D quantitative imaging after 177Lu-DOTATATE on CZT SPECT/CT device with MEHRS collimator. First report.

ABSTRACT

Lutetium-177 (177Lu)-based post-therapeutic imaging allows visualization of treated lesions andabsorbed dose measurement. There is an increasing number of cadmium-zinc-telluride (CZT) gamma-cameras in nuclear medicine departments but until now these devices were not adapted to the medium-energy emission of 177Lu photons. We present here in the first reported images acquired with a new collimator designed for CZT gamma-camera compared to a conventional sodium iodide (NaI) (Tl) gamma-camera. Post-therapeutic 177Lu-DOTATATE imaging on a CZT device with a medium energy high resolution (MEHRS)-collimator are promising and support the widespread of both 177Lu-based peptide-receptor radionuclide therapy (PRRT) and CZT gamma-cameras.