Clinical Research

brain scans of woman who died after taking experimental alzheimer's drug

Brain scans of patient who died while on experimental Alzheimer's drug cause experts to question safety

A neurologist who examined the patient's imaging explained that her brain swelling was so severe in some cases that the folds of the cerebral cortex appeared “merged and squashed.”

December 22, 2022
Regularly eating avocados is associated with a reduced risk of cardiovascular disease, according to a new study.

Why clinicians should know if patients are on the keto diet before undergoing PET imaging

Patients adhering to a ketogenic diet can show reduced cerebral 18F-FDG uptake on PET imaging, study shows.

December 21, 2022
Sean Fain, PhD, vice chair of radiology and research and a professor of radiology, Division of Cardiovascular and Thoracic Imaging, University of Iowa, discusses how long-COVID lung damage can be tracked using xenon (Xe) gas magnetic resonance imaging (MRI) and quantitative computed tomography (CT). He spoke to Health Imaging at RSNA 2022.

VIDEO: Tracking long-COVID lung damage using MRI and CT

Sean Fain, PhD, vice chair of radiology and research and a professor of radiology, University of Iowa, discusses how long-COVID lung damage can be tracked using xenon (Xe) gas MRI and quantitative CT at RSNA 2022. 

December 16, 2022
why are T. Rex arms so short?

Experts hope CT can help unlock age-old question: Why were T. Rex arms so short?

Experts are hoping that, by imaging the dinosaur’s shoulder girdle and forelimb, they can create a digital model that could help in determining a T. Rex arm’s range of motion and strength. 

December 14, 2022
kid child pediatric MRI imaging

MRI scans could be key to managing ADHD treatment

A new brain imaging study is giving experts insight into how medication used to treat ADHD works in the brain to soften symptoms associated with the neurological disorder. 

December 9, 2022
An example of a positive amyloid plaque PET nuclear brain scan. these tests can help identify Alzheimer's patients earlier so they can be prescribed drugs to treat the condition.

Cognitive decline not far behind amyloid and tau PET-positive scans, even for the asymptomatic

Common markers of Alzheimer's disease visualized on PET scans of asymptomatic patients might foreshadow the onset of symptoms in the years following their initial discovery.

December 7, 2022
smartphone.jpg

This is your brain on smartphones: MRI study reveals altered network strength in brains of smartphone 'addicts'

The study, which was published in Brain and Behavior, found that individuals who used their smartphone excessively displayed different strengths in the prefrontal and parietal neural network.

December 5, 2022
Patient with severe, lung damage from COVID. Images in a 54-year-old man with COVID-19–related acute respiratory distress syndrome and subsequent fibrosis. (A) Axial CT 2 weeks after admission shows diffuse ground-glass opacity (GGO) with reticular abnormality and traction bronchiectasis in right middle lobe, indicating organizing phase of lung injury. (B) Axial CT 6 months after admission shows decreased GGO but extensive traction bronchiectasis and architectural distortion, suggesting fibrosis. RSNA

Lung scarring occurs in up to 11% of patients recovered from COVID, regardless of infection severity

Researchers cannot yet determine whether these changes will progress or resolve in the long term.

December 5, 2022

Around the web

Automated AI-generated measurements combined with annotated CT images can improve treatment planning and help referring physicians and patients better understand their disease, explained Sarah Jane Rinehart, MD, director of cardiac imaging with Charleston Area Medical Center.

Two advanced algorithms—one for CAC scores and another for segmenting cardiac chamber volumes—outperformed radiologists when assessing low-dose chest CT scans. 

"Gen AI can help tackle repetitive tasks and provide insights into massive datasets, saving valuable time," Thomas Kurian, CEO of Google Cloud, said Tuesday. 

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