% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Rathke:137610, author = {H. Rathke and A. Afshar-Oromieh and F. L. Giesel and C. Kremer and P. Flechsig and S. Haufe and W. Mier and T. Holland-Letz$^*$ and M. De Bucourt and T. Armor and J. W. Babich and U. Haberkorn$^*$ and C. Kratochwil}, title = {{I}ntraindividual {C}omparison of 99m{T}c-{M}ethylene {D}iphosphonate and {P}rostate-{S}pecific {M}embrane {A}ntigen {L}igand 99m{T}c-{MIP}-1427 in {P}atients with {O}sseous {M}etastasized {P}rostate {C}ancer.}, journal = {Journal of nuclear medicine}, volume = {59}, number = {9}, issn = {2159-662X}, address = {New York, NY}, publisher = {Soc.}, reportid = {DKFZ-2018-01490}, pages = {1373 - 1379}, year = {2018}, abstract = {The objective of this study was to evaluate the rate of detection of bone metastases obtained with the prostate-specific membrane antigen (PSMA)-targeting tracer 99mTc-MIP-1427, as opposed to conventional bone scanning with 99mTc-methylene diphosphonate (99mTc-MDP), in a collective of patients with known advanced-stage osseous metastasized prostate cancer. Methods: Twenty-one patients with known metastatic disease were staged with both conventional bone scanning and PSMA ligand scintigraphy within a time frame of less than 10 d. Imaging included planar whole-body scanning and SPECT or SPECT/CT with 2 bed positions 3 h after injection of either 500-750 MBq of 99mTc-MIP-1427 or 600-750 MBq of 99mTc-MDP. Lesions were scored as typical tumor, equivocal (benign/malignant), or normal within a standard reporting schema divided into defined anatomic regions. Masked and consensus readings were performed with sequential unmasking: planar scans first, then SPECT/CT, the best evaluable comparator (including MRI), PET/CT, and follow-up examinations. Results: Eleven patients had PSMA-positive visceral metastases that were predictably not diagnosed with conventional bone scanning. However, SPECT/CT was required to distinguish between soft-tissue uptake and overlapping bone. Four patients had extensive 99mTc-MDP-negative bone marrow lesions. Seven patients had superscan characteristics on bone scans; in contrast, the extent of red marrow involvement was more evident on PSMA scans. Only 3 patients had equivalent results on bone scans and PSMA scans. In 16 patients, more suspect lesions were detected with PSMA scanning than with bone scanning. In 2 patients $(10\%),$ a PSMA-negative tumor phenotype was present. Conclusion: PSMA scanning provided a clear advantage over bone scanning by reducing the number of equivocal findings in most patients. SPECT/CT was pivotal for differentiating bone metastases from extraosseous tumor lesions.}, cin = {C060 / E060}, ddc = {610}, cid = {I:(DE-He78)C060-20160331 / I:(DE-He78)E060-20160331}, pnm = {319H - Addenda (POF3-319H)}, pid = {G:(DE-HGF)POF3-319H}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:29371410}, doi = {10.2967/jnumed.117.200220}, url = {https://inrepo02.dkfz.de/record/137610}, }