MRI helps unravel the mysteries of sleep

Our state of consciousness changes significantly during stages of deep sleep, just as it does in a coma or under general anesthesia. Scientists have long believed – but couldn’t be certain – that brain activity declines when we sleep. Most research on sleep is conducted using electroencephalography (EEG), a method that entails measuring brain activity […]

Imaging of ballistic wounds, bullet composition and implications for MRI safety

IMAGE: Scout (A), T1-weighted spin-echo (SE) (B), T2-weighted SE (C), T2-weighted gradient-recalled echo (GRE) (TR/TE, 500/10; D), and T2-weighted GRE (TR/TE, 700/30; E) MR images show jacket hollow point .45 automatic… view more  Credit: American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR) Leesburg, VA, December 29, 2020–According to an article in ARRS’ American Journal […]

Imaging of ballistic wounds, bullet composition and implications for MRI safety — ScienceDaily

According to an article in ARRS’ American Journal of Roentgenology (AJR), because patients with ballistic embedded fragments are frequently denied MRI (due to indeterminate bullet composition sans shell casings), radiography and CT can be used to identify nonferromagnetic projectiles that are safe for MRI. “Commercially available handgun and shotgun ammunition representing projectiles commonly encountered in […]

Body MRI reinterpretations plagued by discrepancies and errors

IMAGE: Lesion was originally reported as indeterminate enhancing mass, and outside report recommended biopsy. Classic features of benign hemangioma are shown. Error was attributed to faulty reasoning. A, Axial MR image… view more  Credit: American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR) Leesburg, VA, October 16, 2020–According to an article in ARRS’ American Journal […]