Radiological Society of North America Sep 9 2025 A special MRI technique that detects iron levels in different regions of the brain can predict the onset of mild cognitive impairment and cognitive decline in cognitively unimpaired older adults, potentially creating a pathway to earlier interventions, according to a study published today in Radiology , a journal of the Radiological Society of North America (RSNA). As the leading cause of dementia worldwide, Alzheimer's disease is a growing