In a proof-of-concept study funded by the National Institutes of Health, researchers from the Keck School of Medicine of USC and the California Institute of Technology (Caltech) have shown that an innovative, noninvasive technique can be used to quickly collect 3D images of the human body, from head to foot. The technology combines ultrasound and photoacoustic imaging, which detects sound waves generated by light, to simultaneously collect images of both tissue and blood vessels. For the first time in humans, the research team combined two imaging methods, rotational ultrasound tomography (RUST) and photoacoustic tomography (PAT), to create what they call RUS-PAT. To show how broadly the technology can be applied, the researchers used the system to image multiple regions of the human body: the brain, breast, hand and foot. Brain imaging was done in patients with traumatic brain injury undergoing surgery, who had portions of their skull temporarily removed. The results show that the technology can capture both tissue structure and blood vessels across a region up to 10 centimeters wide, all in about 10 seconds. The findings have the potential to address current gaps in medical imaging.

Subtle abnormalities in kidney function — even within the range considered normal — may help identify people at risk of developing chronic kidney disease. This is shown in a new study from Karolinska Institutet, published in Kidney International. The researchers have therefore developed a web-based tool that could aid in early detection and thus primary prevention.

Though the U.S. population is aging and the need for elder care is growing, nursing home capacity has dropped from pre-COVID rates.

A study published on Monday in JAMA Internal Medicine showed that the decline varied widely by geographic area. One quarter of U.S. counties experienced reductions of 15 percent or more from 2019 to 2024, with the greatest loses (of 25 percent or more) reported in rural areas.