caa a22 4500 60549228X CHVBK 20210128100514.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s00261-015-0455-3 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0455-3 Whole-body FDG PET-MR oncologic imaging: pitfalls in clinical interpretation related to inaccurate MR-based attenuation correction [Elektronische Daten] [Ulrike Attenberger, Ciprian Catana, Hersh Chandarana, Onofrio Catalano, Kent Friedman, Stefan Schonberg, James Thrall, Marco Salvatore, Bruce Rosen, Alexander Guimaraes] Simultaneous data collection for positron emission tomography and magnetic resonance imaging (PET/MR) is now a reality. While the full benefits of concurrently acquiring PET and MR data and the potential added clinical value are still being evaluated, initial studies have identified several important potential pitfalls in the interpretation of fluorodeoxyglucose (FDG) PET/MRI in oncologic whole-body imaging, the majority of which being related to the errors in the attenuation maps created from the MR data. The purpose of this article was to present such pitfalls and artifacts using case examples, describe their etiology, and discuss strategies to overcome them. Using a case-based approach, we will illustrate artifacts related to (1) Inaccurate bone tissue segmentation; (2) Inaccurate air cavities segmentation; (3) Motion-induced misregistration; (4) RF coils in the PET field of view; (5) B0 field inhomogeneity; (6) B1 field inhomogeneity; (7) Metallic implants; (8) MR contrast agents. Springer Science+Business Media New York, 2015 PET/MRI nationallicence Attenuation correction nationallicence Pitfalls nationallicence Attenberger Ulrike Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Mannheim, Germany aut Catana Ciprian Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut Chandarana Hersh Department of Radiology, New York University Medical Center, New York, NY, USA aut Catalano Onofrio Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut Friedman Kent Department of Radiology, New York University Medical Center, New York, NY, USA aut Schonberg Stefan Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Mannheim, Germany aut Thrall James Department of Radiology, Massachusetts General Hospital, 02114, Boston, MA, USA aut Salvatore Marco SDN IRCCS, University of Naples, Naples, Italy aut Rosen Bruce Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut Guimaraes Alexander Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/6(2015-08-01), 1374-1386 0942-8925 40:6<1374 2015 40 261 https://doi.org/10.1007/s00261-015-0455-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 review-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-015-0455-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Attenberger Ulrike Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Mannheim, Germany aut NATIONALLICENCE 700 1- Catana Ciprian Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut NATIONALLICENCE 700 1- Chandarana Hersh Department of Radiology, New York University Medical Center, New York, NY, USA aut NATIONALLICENCE 700 1- Catalano Onofrio Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut NATIONALLICENCE 700 1- Friedman Kent Department of Radiology, New York University Medical Center, New York, NY, USA aut NATIONALLICENCE 700 1- Schonberg Stefan Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Mannheim, Germany aut NATIONALLICENCE 700 1- Thrall James Department of Radiology, Massachusetts General Hospital, 02114, Boston, MA, USA aut NATIONALLICENCE 700 1- Salvatore Marco SDN IRCCS, University of Naples, Naples, Italy aut NATIONALLICENCE 700 1- Rosen Bruce Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut NATIONALLICENCE 700 1- Guimaraes Alexander Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 02129, Charlestown, MA, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/6(2015-08-01), 1374-1386 0942-8925 40:6<1374 2015 40 261