Functional MRI tracks risk alert
You're doing 50 mph in a 35-mph zone when you think you notice a police car. Your heart rate speeds up and your foot automatically moves to the brake. The anterior cingulate cortex may have prompted that speedy reaction, according to researchers at Washington University in St. Louis.
You're doing 50 mph in a 35-mph zone when you think you notice a police car. Your heart rate speeds up and your foot automatically moves to the brake. The anterior cingulate cortex may have prompted that speedy reaction, according to researchers at Washington University in St. Louis.
Sixteen subjects were studied with functional MRI while they pushed buttons in response to a series of visual cues. But investigators threw in some distractions, which resulted in a greater error rate associated with a particular visual cue. When that cue flashed on a screen, participants immediately became anxious, even before they could respond. Activity in the anterior cingulate cortex was strongest at those times (Science Feb. 18, 2005;307[5712]: 1118-1121).
While a healthy anterior cingulate cortex may help people avoid speeding tickets, knowledge of how the region works can improve understanding of people with schizophrenia, who may have an underactive ACC, and those with obsessive compulsive disorder, in whom it may be overactive.
Seven Takeaways from Meta-Analysis of PSMA Radiotracers for Prostate Cancer Imaging
December 1st 2023In a newly published meta-analysis of 24 studies, researchers noted that the PSMA PET radiotracer 18F PSMA-1007 may provide more benefit than 68Ga Ga-PSMA-11 for primary staging of patients with prostate cancer and detection of local lesion recurrence, but also has drawbacks with higher liver uptake and multiple reports of false positive bone lesions.
Study: Regular Mammography Screening Reduces Breast Cancer Mortality Risk by More than 70 Percent
November 30th 2023Consistent adherence to the five most recent mammography screenings prior to a breast cancer diagnosis reduced breast cancer death risk by 72 percent in comparison to women who did not have the mammography screening, according to new research findings presented at the annual Radiological Society of North America (RSNA) conference.
FDA Clears Magnetic Resonance Spectroscopy Platform for Non-Invasive Assessment of Brain Chemistry
November 29th 2023BrainSpec Core reportedly offers enhanced sensitivity for low-grade gliomas and may facilitate the diagnosis of conditions including Alzheimer’s disease, multiple sclerosis, and epilepsy.
