Title:Gallium-68 in Medical Imaging
Volume: 9
Issue: 3
Author(s): Lucia Martiniova, Louis De Palatis, Elba Etchebehere and Gregory Ravizzini
Affiliation:
Keywords:
68Gallium, generator, neuroendocrine tumors, positron emission tomography, somatostatin receptor scintigraphy,
PSMA.
Abstract: Over the past several years, Positron Emission Tomography (PET) imaging agents labeled
with 68Gallium (68Ga) have undergone a significant increase in clinical utilization. 68Ga is conveniently
produced from a germanium-68/gallium-68 (68Ge/68Ga) generator. Because of the compact
size and ease of use of the generator, 68Ga labeled compounds may be more cost-effective than PET
radioisotopes that are cyclotron-produced. The convenient half-life of 68Ga (T1/2=68 min) provides
sufficient radioactivity for various PET imaging applications, while delivering acceptable radiation
doses to patients. This chapter summarizes the emerging clinical utilization of 68Ga-based radiotracers
in medical imaging.