RT Journal Article SR Electronic T1 Dosimetry for Radiopharmaceutical Therapy: The European Perspective JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 73S OP 79S DO 10.2967/jnumed.121.262754 VO 62 IS Supplement 3 A1 Michael Lassmann A1 Uta Eberlein A1 Jonathan Gear A1 Mark Konijnenberg A1 Jolanta Kunikowska YR 2021 UL http://jnm.snmjournals.org/content/62/Supplement_3/73S.abstract AB This review presents efforts in Europe over the last few years with respect to standardization of quantitative imaging and dosimetry and comprises the results of several European research projects on practices regarding radiopharmaceutical therapies (RPTs). Because the European Union has regulatory requirements concerning dosimetry in RPTs, the European Association of Nuclear Medicine released a position paper in 2021 on the use of dosimetry under these requirements. The importance of radiobiology for RPTs is elucidated in another position paper by the European Association of Nuclear Medicine. Furthermore, how dosimetry interacts with clinical requirements is described, with several clinical examples. In the future, more efforts need to be undertaken to increase teaching and standardization efforts and to incorporate radiobiology for further individualizing patient treatment, with the aim of improving the outcome and safety of RPTs.