The gadolinium-based contrast agent Gadovist® does not disturb the signals generated during diffusion-weighted imaging (DWI). Post-contrast DWI evaluations within multiparametric MRI are as reliable as pre-contrast DWI assessments in prostate cancer.
Mathematical modeling and laboratory tests demonstrate how contrast agents may detect diseases more specifically than ever before. Their relaxivity and binding status can be depicted by a change of color on the screen.
Heilmaier C, Zuber N, Bruijns B, Weishaupt D. (anho/ktg)
The diagnostic accuracy of an abbreviated MRI protocol does not differ from a standard MRI protocol. Moreover, acquisition and interpretation time is shorter. This makes MRI attractive for screening programs.
Compared to multidetector CT or PET, the detection of colorectal cancer liver metastases (CRLMs) by PET/MR imaging using a liver-specific contrast agent provides a significantly higher diagnostic performance. Metabolic data further adds prognostic information regarding recurrence-free survival after neoadjuvant chemotherapy and hepatic resection.
The Nuclear Regulatory Commission (NRC) has proposed regulatory changes of occupational dose limits. This will cause a small increase in the number of workers who exceed administrative control levels (ACLs) and limits. Especially physicians and pregnant nuclear medicine workers may need to alter their workload.