Shoulder issues are more common in women, especially after age 40. They are also associated with medical conditions such as ...

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 ...