Anus injecting iodine intestinal tract contrast agent and application thereof in CT virtual colon-proctoscope

Abstract

The invention relates to an anus injecting iodine intestinal tract contrast agent and application thereof in a CT virtual colon-proctoscope contrast agent. The iodine contrast agent is an iodine water preparation and comprises an inorganic iodine agent, an organic iodine agent, other iodine compounds and an iodine-contained food; and the iodine-contained concentration is between 5g / L and 180g / L. By adding water for dissolving the iodine contrast agent and adding or not adding an isoosmotic adjusting agent and an antiallergic medicine, the contrast agent is prepared. The application of the anus injecting iodine intestinal tract contrast agent in preparing the CT virtual colon-proctoscope contrast agent does not need to clean the intestinal tract in advance and has the advantages of reduction of pain of an examined person, lowering of pain and side effects on a patient probably caused by injection twice, improvement of effect and accuracy of virtual colon-proctoscope inspection and effective separation of residues in the intestinal tract and the intestinal wall under the condition of excrement residual, and a preparation method of the iodine contrast agent is simple.

Description

【Technical field】 [0001] The invention relates to a contrast agent in the technical field of CT (X-ray computerized tomography), in particular to an iodine contrast agent and its application in CT virtual colonoscopy contrast agent. 【Background technique】 [0002] X-ray CT is a large-scale medical imaging equipment developed rapidly in recent decades, which plays an important role in the diagnosis of diseases. [0003] In the absence of natural contrast between human organs and structures, we usually artificially introduce certain substances into or around the organs to increase their contrast in medical images such as CT. The contrast substances introduced are called contrast agents (or contrast agent). A CT scan done with contrast material is called an enhanced scan. The diagnosis of some diseases cannot be diagnosed without enhanced scan, so enhanced scan has its unique value. Based on the effective contrast agent and the corresponding image segmentation processing and...

AI Technical Summary

Problems solved by technology

[0009] The biggest defect of the existing CT virtual colonoscopy technology is that it is not easy to accept

Although compared with conventional colonoscopy, there is no intrusion in the intestinal tract and the examination time is short, but the long-term fasting, laxatives, colon lavage and anal inflation of 2 liters still bring a lot of pain to the examinee, which is also the reason One of the reasons why technology has not been popularized as a routine medical examination program in China

At the same time, gas as a contrast agent cannot effectively separate the intestinal residue from the intestinal wall in the presence of residual feces

False positive and false negative results are prone to occur through virtual colonoscopy, which affects the accuracy of diagnosis and further limits the application of this technology