Between
发表于 2025-3-28 17:59:41
Principles of Ultrasound, but is transmitted well in solid or fluid materials (Fig. 1.1). In the human body, ultrasound is transmitted well in the abdominal organs and soft tissues but is not transmitted in air-containing organs such as the lungs or the gastrointestinal tract. Since bones do not transmit ultrasound, organs surrounded by bones cannot be examined.