Aortic dissection with neurological symptoms is a usual presentation and rare condition. It poses a major diagnostic challenge due to the risk of misdiagnosis and worse prognosis (functional or vital) ...

Song et al. develop a wearable ultrasound system that automatically quantifies diaphragm movement in intercostal and subcostal views. This technique analyzes respiratory mechanics and accurately ...

Ultrasound is produced by high frequency vibrations beyond the range of human hearing. The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds, is ...

Sep. 26, 2025 Scientists have developed a lens-free mid-infrared camera using a modern twist on pinhole imaging. The system uses nonlinear crystals to convert infrared light into visible, allowing ...

Abstract: When we interact with fluid media, e.g., with our hands, we experience a spatially and temporally varying pressure field on our skin, which depends on the density and viscosity of the fluid, ...

Abstract: In some cases of ultrasound nondestructive evaluation, the use of a coupling agent can damage the object being inspected, thus requiring the use of an air-coupled ultrasound transducer. This ...

A bladder ultrasound helps detect bladder polyps, which might not show symptoms. Some bladder polyps can become cancerous, so doctors may recommend removing them if they are suspicious. Bladder polyps ...