- 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.
- Photon-Counting CT in the Head and Neck: Current Applications and Future Prospects
This article reviews the current clinical application of PCD-CT in head and neck imaging, specifically the temporal bones, facial bones, and paranasal sinuses. PCD-CT offers improved spatial resolution, better iodine contrast-to-noise ratio, reduced artifact, and lower radiation dose.
- The Differentiation between Progressive Disease and Treatment-Induced Effects with Perfusion-Weighted Arterial Spin-Labeling in High-Grade Gliomas
In this retrospective, single-center cohort study, 141 patients (173 lesions) with a new or increasing contrast-enhancing lesion after radiotherapy with or without chemotherapy were assessed with ASL perfusion. Although ASL performed poorly in differentiating progressive disease from treatment-induced effects in high-grade gliomas within 6 months after radiation therapy, it showed fair performance after this period.
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