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 […]

Imaging the twilight zone | EurekAlert! Science News

IMAGE: Differences in brain activity between connected and disconnected states of consciousness studied with positron emission tomography (PET) imaging. Activity of the thalamus, anterior (ACC) and posterior cingulate cortices (PCC), and… view more  Credit: University of Turku What happens in the brain when our conscious awareness fades during general anesthesia and normal sleep? Finnish scientists studied […]

Brain imaging predicts PTSD after brain injury

Philadelphia, December 29, 2020 – Posttraumatic stress disorder (PTSD) is a complex psychiatric disorder brought on by physical and/or psychological trauma. How its symptoms, including anxiety, depression and cognitive disturbances arise remains incompletely understood and unpredictable. Treatments and outcomes could potentially be improved if doctors could better predict who would develop PTSD. Now, researchers using […]

Self-learning algorithms analyze medical imaging data — ScienceDaily

Imaging techniques enable a detailed look inside an organism. But interpreting the data is time-consuming and requires a great deal of experience. Artificial neural networks open up new possibilities: They require just seconds to interpret whole-body scans of mice and to segment and depict the organs in colors, instead of in various shades of gray. […]

New method for imaging exhaled breath could provide insights into COVID-19 transmission

The new imaging technique has been used to capture the exhaled breath of a person speaking. This is a demonstration of the published imaging technique that is being further investigated. The imaging shows only the temperature change associated with exhaled breath, which does not necessarily reflect the movement of viral particles contained in the breath. […]

Chemists achieve new dimension in direct imaging — ScienceDaily

Researchers at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), the Paul Scherrer Institute in Switzerland and other institutions in Paris, Hamburg and Basel, have succeeded in setting a new record in X-ray microscopy. With improved diffractive lenses and more precise sample positioning, they were able to achieve spatial resolution in the single-digit nanometre scale. This new dimension in […]

Researchers demonstrate nondestructive mid-infrared imaging using entangled photons

Researchers used entangled photons to increase the penetration depth of OCT for scattering materials. They demonstrated the technique by analyzing two alumina ceramic stacks containing laser-milled microchannels. The mid-infrared illumination allowed the researchers to capture depth information and to create a full 3D reconstruction of the channel structures (pictured). Credit: Aron Vanselow and Sven Ramelow, […]