Effect of MR Contrast Agents on Quantitative Accuracy of PET in Combined 
Whole-Body PET/MR Imaging

Lois, C; Bezrukov, I; Schmidt H, Schwenzer N, Werner MK, Pichler BJ, Kupferschläger, J; Beyer, T

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Effect of MR Contrast Agents on Quantitative Accuracy of PET in Combined Whole-Body PET/MR Imaging

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Bezrukov, I
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Lois, C., Bezrukov, I., Schmidt H, Schwenzer N, Werner MK, Pichler BJ, Kupferschläger, J., & Beyer, T. (2011). Effect of MR Contrast Agents on Quantitative Accuracy of PET in Combined Whole-Body PET/MR Imaging. Talk presented at 2011 IEEE Nuclear Science Symposium, Medical Imaging Conference (NSS-MIC 2011). Valencia, Spain.

引用: https://hdl.handle.net/11858/00-001M-0000-0013-B964-9

要旨

Combined whole-body PET/MR systems are being tested in clinical practice today. Integrated imaging protocols entail the use of MR contrast agents (MRCA) that could bias PET attenuation correction. In this work, we assess the effect of MRCA in PET/MR imaging. We analyze the effect of oral and intravenous MRCA on PET activity after attenuation correction. We conclude that in clinical scenarios, MRCA are not expected to lead to significant attenuation of PET signals, and that attenuation maps are not biased after the ingestion of adequate oral contrasts.