Intraoperative Molecular Positron Emission Tomography Imaging for Intraoperative Assessment of Radical Prostatectomy Specimens

Autor: Christopher Darr, Pedro Fragoso Costa, Theresa Kahl, Alexandros Moraitis, Jenna Engel, Mulham Al-Nader, Henning Reis, Jens Köllermann, Claudia Kesch, Ulrich Krafft, Tobias Maurer, Daniel Köhler, Susanne Klutmann, Fabian Falkenbach, Jens Kleesiek, Wolfgang P. Fendler, Boris A. Hadaschik, Ken Herrmann
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: European Urology Open Science, Vol 54, Iss , Pp 28-32 (2023)
Druh dokumentu: article
ISSN: 2666-1683
DOI: 10.1016/j.euros.2023.05.017
Popis: In this prospective two-center feasibility study, we evaluate the diagnostic value of intraoperative ex vivo specimenPET/CT imaging of radical prostatectomy (RP) and lymphadenectomy specimens. Ten patients with high-risk prostate cancer underwent clinical prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) preoperatively on the day of surgery. Six patients received 68Ga-PSMA-11 and four 18F-PSMA-1007. Radioactivity of the resected specimen was measured again using a novel specimenPET/CT device (AURA10; XEOS Medical, Gent, Belgium) developed for intraoperative margin assessment. All index lesions of staging multiparametric magnetic resonance imaging could be visualized. Overall, specimenPET/CT correlated well with conventional PET/CT regarding detection of suspicious tracer foci (Pearson coefficient 0.935). In addition, specimenPET/CT demonstrated all lymph node metastases detected on conventional PET/CT (n = 3), as well as three previously undetected lymph node metastases. Importantly, all positive or close (
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