Uses high frequency sound waves to produce picture of the inside of the body in a similar way to radar or a ship's sonar.
It is a safe technique which can be used to examine the abdomen and pelvis as well as structures in the neck.
It is the investigation of choice in the investigation of gynaecological problems, the detection of gallstones, abdominal aortic aneurysms and is also very useful in sports injuries (for example identifying muscle or tendon damage)
