title: [Combined PET-MRI of the abdomen].
abstract: The first fully integrated combined positron emission tomography-magnetic resonance imaging (PET-MRI) scanners have been clinically available since 2010. Large prospective studies regarding indications and diagnostic accuracy of this new modality are not yet available; however, preliminary studies have shown a higher diagnostic accuracy and confidence compared to PET-computed tomography (PET-CT) in regions where MRI is known to be superior to CT, such as the liver. The benefit of MRI in accurate lesion characterization and the additional value of diffusion-weighted imaging (DWI) as a complementary functional modality by means of the apparent diffusion coefficient (ADC) is apparent in entities with low tracer uptake (e.g. due to small size) and a decreased or absent accumulation pattern on PET.
authors.affiliation: Klinik für Nuklearmedizin, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland. tibor.vag@tum.de.
authors.forename: Tibor
authors.initials: T
authors.lastname: Vag
authors.affiliation: Klinik für Nuklearmedizin, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
authors.forename: M
authors.initials: M
authors.lastname: Eiber
authors.affiliation: Klinik für Nuklearmedizin, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
authors.forename: M
authors.initials: M
authors.lastname: Schwaiger
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D064847:Multimodal Imaging / Q000379:methods*; D049268:Positron-Emission Tomography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
keywords: Abdomen; Colorectal cancer; Liver metastases; Neuroendocrine tumors; Positron emission tomography-computed tomography