US or micro-US

UltraSound Imaging (US) relies on the use of Ultrasound. Ultrasonic images are created by sending pulses of ultrasound into tissues and recording echoes, which are reflected to a different extent by different tissues. US is particularly suitable to visualize soft tissues such as muscles, tendons, organs etc.
In microUS, the instrumentation is implemented with accessories or with a technical set-up which provide optimum resolution and sensitivity for small animal studies.