CT of the liver is considered the most objective and reliable diagnostic study. Its essence is as follows: the internal organ is exposed to X-rays, after which the intensity of the rays transmitted through the tissue is measured.
The result of such an examination is determined by the Hounsfield scale. It should range from +55 to +70. Reducing the density of the liver on CT is an obvious sign of fatty hepatosis. At a score above +70, diagnoses are metalloses.
CT is assigned in the following cases:
- with ultrasound revealed increased dimensions of the internal organ;
- preoperative liver examination;
- injuring the abdominal cavity;
- jaundice ;
- contraindications for MRI;
- monitoring the condition of the internal organ during the postoperative period, etc.
CT of the liver with contrasting
This diagnostic method allows to increase the difference in the density of the tissues of the bile excretory organs. For example, with conventional CT, ducts can be poorly viewed. In this case, do CT of the liver with contrasting.
Thus, what does not show the usual tomography of the liver can be seen on CT with contrasting. This method of research can be used to identify the type of jaundice, the detection of pathology, tumors, etc.
Features of preparation for CT of the liver
The preparation process takes several days. At this time, the patient must pass a number of tests. According to their results, it will be revealed whether he has an allergy to the contrast agent introduced into the body. If the answer is positive, the diagnostic procedure with contrasting is replaced with the usual one.
On the CT of the liver, the patient should come on an empty stomach. In addition, you need to worry about the appropriate clothing in advance. Choose a dressing gown or pajamas that do not have metal elements. Otherwise, it will be difficult to judge the reliability of the results obtained in the study.