A new study found that teen drivers and drivers 65 years and older — two age groups at a higher risk of being involved in an automobile accident — are more likely to be driving vehicles that are less safe, putting them at even higher risk of injury. The findings underscore the need for these…

Researchers have developed a noninvasive technique that can capture images of rod and cone photoreceptors with unprecedented detail. The advance could lead to new treatments and earlier detection for retinal diseases such as macular degeneration, a leading cause of vision loss. «We are hopeful that this technique will better reveal subtle changes in the size,…

By using 3D aerosol jet-printing to put perovskites on graphene, scientists have made X-ray detectors with record sensitivity that can greatly improve the efficiency and reduce the cost and health hazard of medical imaging devices. There has been a lot of progress since. Aside from radiographs, which most people have taken at least once in…

A phenomenon called ‘oxidative stress’ is seen in affected organs during the early stages of certain difficult-to-treat diseases like cancer and kidney dysfunction. Detecting oxidative stress could thus enable early diagnosis and preventive treatments. But, the in vivo measurement of oxidative stress caused by both oxidation and reduction has historically been difficult. Now, scientists have…

Since 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 a clinical setting was fired into ballistic gelatin as a surrogate…

Magnetic resonance imaging (MRI) is widely used in medicine to detect, diagnose and treat diseases such as cancer, while relying on experts’ interpretation of images. Quantitative MRI, which obtains numerical measurements during the scans, can now potentially offer greater accuracy, repeatability and speed — but rigorous quality control is needed for it to reach its…

Researchers have developed a microfilter device that can easily separate and capture trace amounts of cancer cells in blood. The palm-sized device is expected to contribute to the development of new cancer diagnostic technologies based on cancer cells in the blood, such as early detection by blood test, postoperative management, and recurrence monitoring. The blood…

MRI — with or without FDG PET coregistration —c an improve the staging of patients with small cell lung cancer. «FDG PET/CT, whole-body MRI, and coregistered FDG PET/MRI outperformed conventional tests for various staging endpoints in patients with SCLC,» concluded first author Yoshiharu Ohno from the Fujita Health University School of Medicine in Japan. Whole-body…

Researchers have optimized a special X-ray process — known as soft X-ray tomography — to deliver high-resolution three-dimensional images of entire cells and their molecular structure in just a few minutes. «Scanning electron microscopes are preferred in cell imaging because they provide extremely sharp nanoscale images,» explains Venera Weinhardt, a post-doc at the COS and…

A new imaging technique can measure temperature in 2D, without contact, and in just a snap. This technology, known as single-shot photoluminescence lifetime imaging thermometry (SPLIT), is based on the luminescence of nanoparticles doped with rare earth ions. «They are considered as nanothermometers because their luminescent properties change with the temperature of the environment. They…