Morphological markers for brain plasticity are still lacking and their findings are challenged by the extreme variability of cortical brain surface. Trying to overcome the "correspondence problem," we applied a landmark-free method (the generalized procrustes surface analysis (GPSA)) for investigating the shape variation of cortical surface in a group of 40 healthy volunteers (i.e.
View Article and Find Full Text PDFGadolinium (Gd) is among the rare earth elements extensively utilized in both industrial and medical applications. The latter application appears to contribute to the rise in Gd levels in aquatic ecosystems, as it is excreted via urine from patients undergoing MRI scans and often not captured by wastewater treatment systems. The potential environmental and biological hazards posed by gadolinium exposure are still under investigation.
View Article and Find Full Text PDFObjective: The aim of this study was to assess the presence of detectable changes of skin thickness on clinical brain magnetic resonance imaging (MRI) scans in patients with MS, history of multiple gadolinium-based contrast agents (GBCAs) administrations, and evidence of gadolinium deposition in the brain.
Materials And Methods: In this observational cross-sectional study, 71 patients with MS who underwent conventional brain MRI with an imaging protocol including enhanced 3D volumetric interpolated breath-hold examination (VIBE) T1-weighted with fat saturation were assessed. Patients with bilateral isointense dentate nucleus on unenhanced T1-weighted images were assigned to group A (controls without MRI evidence of gadolinium deposition), and patients with visually hyperintense dentate nuclei were assigned to group B.
Purpose: To compare resting-state functional connectivity (RSFC) of obese patients responders or non-responders to sleeve gastrectomy (SG) with a group of obese patients with no past medical history of metabolic or bariatric surgery.
Methods: MR images were acquired at 1.5 Tesla.
The impact of emerging chemical pollutants, on both status and functionality of aquatic ecosystems is worldwide recognized as a relevant issue of concern that should be assessed and managed by researchers, policymakers, and all relevant stakeholders. In Europe, the Reach Regulation has registered more than 100.000 chemical substances daily released in the environment.
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