RT Journal Article SR Electronic T1 Production and Use of the First-Row Transition Metal PET Radionuclides 43,44Sc, 52Mn, and 45Ti JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1655 OP 1659 DO 10.2967/jnumed.118.213264 VO 59 IS 11 A1 Chaple, Ivis F. A1 Lapi, Suzanne E. YR 2018 UL http://jnm.snmjournals.org/content/59/11/1655.abstract AB With the increasing focus on a more personalized approach to medicine using imaging techniques to select patients for targeted treatment or theranostic strategies, interest in the development of new radionuclides is expanding. Through the development of production and radiochemistry techniques, several new radiometals are being added to the toolbox of the nuclear imaging community. 43,44g,mSc, 52gMn, and 45Ti are all emerging transition metal radionuclides and will be discussed in this short review. Each of these nuclides has unique imaging characteristics and shows promise for the development of new molecular imaging agents.