- Temporal Changes on Postgadolinium MR Vessel Wall Imaging Captures Enhancement Kinetics of Intracranial Atherosclerotic Plaques and Aneurysms
MR VWI in patients with symptomatic intracranial atherosclerotic disease plaques and aneurysms showed contrast accumulation beyond the early-phase (5–15 min) into the delayed phase (20–30 min). This nonspecific enhancement may indicate focal inflammation, neoangiogenesis, and/or increased permeability. The authors advocate postcontrast imaging soon after contrast administration to optimize diagnostic accuracy.
- Cognitive and Salience Network Connectivity Changes following a Single Season of Repetitive Head Impact Exposure in High School Football
High school football players and controls underwent cognitive battery testing. The study found that football players had subtle cognitive decrements. MRI revealed altered brain connectivity, with decreased dorsal anterior cingulate cortex interhemispheric connectivity and within-salience network connectivity, which correlated with poorer total symptoms and verbal memory performance, respectively.