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Fibroblast Activation Protein–Targeted PET Imaging of Metastatic Castration-Resistant Prostate Cancer Compared With 68Ga-PSMA and 18F-FDG PET/CT

Fibroblast Activation Protein–Targeted PET Imaging of Metastatic Castration-Resistant Prostate... Abstract Herein we present 2 mCRPC (metastatic castration-resistant prostate cancer) patients who underwent 68Ga-PSMA PET/CT for PSMA-targeted radioligand therapy eligibility. Prior studies have noted aggressive clinical behavior and poor prognosis associated with discordant FDG positivity and low PSMA expression. Accordingly, the patients also underwent 18F-FDG PET/CT, which revealed intratumoral heterogeneity. Therefore, an additional PET/CT targeting fibroblast activation proteins (FAPs) using 68Ga-FAPI-04 was performed to assess the potential for an FAP-targeted therapy. This report highlights the theranostic potential of FAP imaging in mCRPC, particularly in patients with heterogeneous tumor phenotypes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Clinical Nuclear Medicine Wolters Kluwer Health

Fibroblast Activation Protein–Targeted PET Imaging of Metastatic Castration-Resistant Prostate Cancer Compared With 68Ga-PSMA and 18F-FDG PET/CT

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References (9)

Publisher
Wolters Kluwer Health
Copyright
Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.
ISSN
0363-9762
eISSN
1536-0229
DOI
10.1097/rlu.0000000000003837
Publisher site
See Article on Publisher Site

Abstract

Abstract Herein we present 2 mCRPC (metastatic castration-resistant prostate cancer) patients who underwent 68Ga-PSMA PET/CT for PSMA-targeted radioligand therapy eligibility. Prior studies have noted aggressive clinical behavior and poor prognosis associated with discordant FDG positivity and low PSMA expression. Accordingly, the patients also underwent 18F-FDG PET/CT, which revealed intratumoral heterogeneity. Therefore, an additional PET/CT targeting fibroblast activation proteins (FAPs) using 68Ga-FAPI-04 was performed to assess the potential for an FAP-targeted therapy. This report highlights the theranostic potential of FAP imaging in mCRPC, particularly in patients with heterogeneous tumor phenotypes.

Journal

Clinical Nuclear MedicineWolters Kluwer Health

Published: Jan 13, 2022

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