A kind of intestinal contrast agent and preparation method thereof

Abstract

The invention provides an intestinal imaging agent and a preparation method thereof. The countable markers (barium rings, barium beads, barium bars, etc.) and a large number of barium-containing particulates are encapsulated in capsules or mixed and then mixed into powders. Patient swallows. The contrast agent first passes through the oral cavity, then enters the small intestine along the digestive tract, and is fully mixed with the food in the small intestine, and then enters the large intestine along with the intestinal contents. Doctors take abdominal X-ray plain films for patients at different time periods. By observing the development of a large number of barium-containing particles, the direction of the patient's intestinal canal can be clearly observed, and then the intestinal location of the marker can be accurately judged to understand the gastrointestinal tract of the marker. Transit time, and its residence time and number in each intestinal segment within a certain period of time, and the excretion rate of markers to guide the type and degree of slow transit patients. In addition, by observing the direction of the intestinal tube, it can assist the doctor to determine whether the patient is suffering from slow colonic transit caused by factors such as long colon and compensatory expansion, which is convenient for the doctor to further diagnose and treat.

Description

technical field [0001] The invention relates to the technical field of medical imaging agents, in particular to an intestinal imaging agent and a preparation method thereof. Background technique [0002] In the clinical diagnosis of chronic constipation, colonic transit test is usually required for slow transit constipation, and the commonly used imaging products are opaque metal pellets, barium rings or barium strips. Since the imaging product is opaque, when it enters the intestine, it can be observed by X-ray imaging, calculate the number of opaque globules in different quadrants, estimate the percentage of globules in the possible intestinal canal, and speculate whether the possible intestinal canal exists. Colonic slow transit phenomenon. However, the lengthy bowel can cause changes in the position of the bowel, which is very likely to cause difficulty in positioning and cause misdiagnosis; in addition, it is not accurate to judge the bowel only by the quadrant where t...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an intestinal contrast agent and its preparation method, aiming to solve the problems of low accuracy and low efficiency in the diagnosis of existing contrast agents

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