PET-MRI of the Pancreas and Kidneys

Purpose of Review: PET-MRI is a novel imaging modality which can non-invasively provide both morphological and functional information about benign and malignant lesions. In this article, recent updates in the applications of PET-MRI in pancreatic and renal cancers are reviewed. Recent Findings: Multiparametric imaging has raised great interest in the oncology field by revealing various functional characteristics within tumors. For example, we can quantify tumor perfusion by dynamic contrast-enhanced MRI or arterial spin labeling MRI, tumor cellularity by diffusion-weighted image, tumor metabolites by MR spectroscopy, tumor metabolism by FDG-PET, and tumor heterogeneity by radiomics. Recent studies have demonstrated that these imaging biomarkers were correlated with tumor aggressiveness, treatment response, and prognosis. Summary: Combination of these imaging biomarkers from “one-stop shop” PET-MRI has great potential to more accurately characterize and monitor tumor behavior in the clinic to deliver individualized treatment plans. © 2017, Springer Science+Business Media New York.