Tag

Mri

All articles tagged with #mri

Chronic cannabis use linked to thinner frontal brain region and reduced motivation, study finds
health11 days ago

Chronic cannabis use linked to thinner frontal brain region and reduced motivation, study finds

A study of 46 adults with long-term daily cannabis use (average about a decade; at least five years of daily use) found thinning of the right rostral middle frontal cortex on MRI, a region involved in planning and executive function. Researchers say such changes may be tied to reduced motivation and difficulty with complex tasks, but caution that causation isn’t proven and more research is needed to determine permanence or reversibility after stopping use.

Jefferson’s Comeback Plan: MRI, Pool Work and ISU’s Sweet 16 Hopes
basketball19 days ago

Jefferson’s Comeback Plan: MRI, Pool Work and ISU’s Sweet 16 Hopes

Iowa State forward Joshua Jefferson will undergo an MRI and begin pool-based, non-weight-bearing rehab after an ankle injury suffered in the NCAA Tournament; ISU coach T.J. Otzelberger said diagnostics with McFarland Orthopedics will guide the next steps, with Jefferson doing multiple rehab sessions daily in an acute stage and no fixed timetable, as he pushes to be available for the Sweet 16 in Chicago if possible.

MIND Diet May Slow Brain Aging, MRI Study Finds
health22 days ago

MIND Diet May Slow Brain Aging, MRI Study Finds

A 12-year Framingham Heart Study Offspring analysis found higher adherence to the MIND diet—rich in leafy greens, berries, nuts, whole grains, fish, poultry, olive oil, and moderate wine—was associated with slower brain aging on MRI, including reduced gray matter loss and less ventricular expansion. Each 3-point rise in MIND score correlated with about 0.279 cm³/year slower gray matter loss (roughly 20% less aging and ~2.5 years) and −0.071 cm³/year slower ventricular expansion (about 1 year). Benefits were strongest for berries and poultry; sweets and fried foods linked to worse changes. The study is observational, with recall bias and a predominantly White cohort limiting causal claims, but supports the brain-health potential of the MIND diet as part of a healthy lifestyle.

AI on brain scans signals early Alzheimer’s risk with 93% accuracy
health24 days ago

AI on brain scans signals early Alzheimer’s risk with 93% accuracy

Researchers trained a machine-learning model on 815 MRI scans from the Alzheimer’s Disease Neuroimaging Initiative to distinguish healthy brains from mild cognitive impairment and Alzheimer’s, achieving 92.87% accuracy by measuring volume across 95 brain regions. The model highlights hippocampus, amygdala, and entorhinal cortex volume loss as strong indicators, with sex-related differences (left middle temporal cortex more affected in females; right entorhinal cortex in males). While promising for earlier detection and tailoring therapies, the study emphasizes the need for further validation and integration with other biomarkers before clinical use.

Brain-emotion map shows anger sits close to fear, while love forms a warmth cluster
science1 month ago

Brain-emotion map shows anger sits close to fear, while love forms a warmth cluster

Researchers used AI to analyze brain MRI data while participants watched movie clips, creating an artificial 'mental map' that places emotions along axes of pleasantness and bodily response. The study found clear groupings, with anger, disgust, and guilt clustering near fear, and happiness, satisfaction, and warmth clustering separately, helping explain why anger can feel similar to fear and informing future mental-health research.

Two Brain Subtypes in ADHD Hint at Personalized Treatments
neuroscience1 month ago

Two Brain Subtypes in ADHD Hint at Personalized Treatments

A study using structural MRI and machine learning identifies two distinct physical subtypes of ADHD. Subtype 1 shows increased gray matter in the frontal regions and cerebellum, linked to severe inattention; Subtype 2 shows widespread gray matter reductions in the cerebellum, frontal regions, and hippocampus, tied to higher overall severity and hyperactive/impulsive symptoms. Through a pseudo-time-series analysis and causal-network mapping, researchers reveal subtype-specific brain–behavior progression patterns, suggesting potential for personalized diagnosis and treatment, though longitudinal studies are needed to confirm progression and acknowledge cross-sectional design limitations.

Greene MRI Adds Uncertainty to Reds' Rotation
sports1 month ago

Greene MRI Adds Uncertainty to Reds' Rotation

Reds ace Hunter Greene will undergo an MRI on his right elbow after renewed stiffness dating back to last season. He previously faced a recommended injection and has had bone spurs but reports his UCL is intact; a diagnosis from team physician Tim Kremchek with a second opinion from Dr. Neal ElAttrache will follow. While surgery hasn't been recommended, his availability for the season’s start is uncertain. Cincinnati’s rotation depth could be tested, with Andrew Abbott, Nick Lodolo, Brady Singer and prospects Chase Burns and Rhett Lowder in the mix, and the club signaling no immediate plans to sign additional free-agent starters.

Headache Misread as Stress Uncovers Tennis-Ball Brain Tumor
health1 month ago

Headache Misread as Stress Uncovers Tennis-Ball Brain Tumor

A 21-year-old college student’s severe headaches were initially dismissed as stress during finals, but an MRI revealed a two-inch benign brain tumor pressing on the left frontal cortex. She underwent a six-hour craniotomy to remove it and is now preparing for radiation therapy to prevent regrowth, urging others to trust their gut and seek second opinions if symptoms persist.

Alcohol Rewires Brain Networks, Isolating Regions
science1 month ago

Alcohol Rewires Brain Networks, Isolating Regions

A Minnesota-led study with 107 adults found that alcohol at a driving-penalty level increases local brain connectivity and clustering while reducing global connectivity, making brain regions more insular. These network changes measured by MRI after rest predict subjective intoxication and may explain common alcohol effects like visual and motor impairment; effects vary by individual and health status, with broader implications for understanding alcohol's impact on brain communication.

Twins' Joe Ryan Scratched Amid MRI for Back Tightness
sports1 month ago

Twins' Joe Ryan Scratched Amid MRI for Back Tightness

Twins ace Joe Ryan was scratched from a Grapefruit League start with right-side lower back tightness and is undergoing an MRI to assess the injury, leaving questions about Minnesota's rotation after Pablo López's Tommy John surgery; depending on MRI results, Ryan's spring ramp-up and potential World Baseball Classic involvement could be affected. He posted a 3.42 ERA over 171 innings last season and remains under team control through 2027.

A Year of Cardio May Make Your Brain Look Younger
health1 month ago

A Year of Cardio May Make Your Brain Look Younger

A 12-month randomized trial found that healthy adults who followed a structured aerobic program (about 150 minutes per week) had brains that appeared roughly 0.6 years younger on MRI than those who did not, with the difference approaching a full year. The change was modest and not explained by a single measured factor, suggesting multiple potential mechanisms. While larger studies are needed to link brain-age reductions to dementia risk, the findings support following current exercise guidelines to help keep the brain biologically younger into midlife.

Twins' López Heads to MRI for Elbow Soreness
sports1 month ago

Twins' López Heads to MRI for Elbow Soreness

Twins right-hander Pablo López was sent for an MRI after elbow soreness surfaced during live batting practice, a precaution ahead of spring training. López is coming off a 2025 season shortened by a shoulder strain and forearm discomfort, with no surgery announced. If the MRI reveals an issue, Minnesota could need to adjust its rotation, though López and Joe Ryan headline a deep group of pitching options.