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- W3005486076 abstract "Abstract Introduction This study aims to evaluate discrepant findings between positron emission tomography/magnetic resonance imaging (PET/MRI) and positron emission tomography/computed tomography (PET/CT) in a cohort of oncological patients and to undertake a phantom study to assess the potential for extended PET acquisitions to lead to false‐positive findings on PET/MRI. Methods Discrepant findings from a series of 106 patients undergoing same‐day 18 F‐fluorodeoxyglucose (FDG)‐PET/CT and PET/MRI were reviewed. Phantom studies explored the potential for PET acquisition time to contribute to discrepancy. Results There were 14 discrepant cases, 5 (35.7%) of which related to PET/MRI acquisitions that had been extended to 10 min. Three of these five cases proved to be falsely positive. Phantom studies showed greater contrast recovery and signal to noise ratio for 10‐min PET/MRI acquisitions compared to 2‐min acquisitions using PET/CT. There were no discrepancies when PET/CT showed disseminated disease ( P = 0.036). Conclusions Extended PET/MRI acquisitions used to accommodate multiple MRI sequences may be associated with false‐positive findings compared to PET/CT. PET/MRI is more likely to have incremental value when the prior probability for disseminated disease is low." @default.
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- W3005486076 date "2020-02-09" @default.
- W3005486076 modified "2023-09-27" @default.
- W3005486076 title "Discrepancies between positron emission tomography/magnetic resonance imaging and positron emission tomography/computed tomography in a cohort of oncological patients" @default.
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- W3005486076 doi "https://doi.org/10.1111/1754-9485.13000" @default.
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