contrast examination

contrast examination

the use of radiopaque materials to make internal organs visible on x-ray film. Because of their high atomic numbers, substances such as iodine and barium have an x-ray photoelectrical interaction that is nearly 400 times that of soft tissue. As a result, internal organs or cavities outlined by such substances are more visible.
References in periodicals archive ?
A water-soluble contrast examination of the colon failed to reveal evidence of a colonic perforation.
4) By monitoring for CT findings specific for intrabdominal hollow-organ perforation as the cause of free intraperitoneal air (Table 3), CT contrast examination has been shown to be 100% sensitive in the detection of perforation of the stomach, duodenum, and colon.
The device should be used for regular ultrasounds, and elastography and contrast examinations abdominal organ.
Patients also underwent computerized tomography with contrast examinations of the liver.