What is a Colonography?

Colonography is an X-ray examination of the colon. Colonography can accurately determine the extent of lesion infiltration, can properly determine the cure and remission of the lesion, and reduce the rate of missed diagnosis. It is a very sensitive method for the diagnosis of early colon cancer.

Name: Colonography

category: X-ray

Normal colonography

It can be seen that most of the roughly symmetrical bags are protruding, called colonic bags, and they are incompletely spaced by semilunar folds.

Clinical significance of colonography

Abnormal results: (1) Intestinal cavity contour changes. Malignant tumors often have irregular edges and stiff walls. Polyps have a clear state and smooth edges; (2) Changes in the size of the intestinal lumen: Malignant tumors often have narrow luminal stenosis, and the stenosis caused by inflammation is more extensive.

People to be tested: abdominal distension, weight loss, fatigue, bowel sounds, insomnia, dreams, cold, severe cases with fever, rapid heartbeat, and weakness, anemia, dehydration

Colonography considerations

Precautions before the inspection There are no special restrictions on the day before the inspection, but do not eat breakfast on the day of the inspection, and smoking is strictly prohibited. You must remove all metal objects from your body before the inspection. Precautions during the inspection: Do not make any noise during the inspection. Before the inspection, agree on how to indicate it when discomfort occurs. Relaxed and cooperate with the examination according to the doctor's instructions. Not suitable for people: colon perforation or necrosis, acute appendicitis, anal fissure pain can not be intubated.

Colonography

Preparation before imaging:

The main purpose is to clean the contents of the intestines. Patients should not eat slag food before the examination. Open the blister and take out 9g leaves at about 8 pm the day before the examination, and then again after 30 minutes. Clean the enema with warm water or normal saline 1.5 hours before the examination.

Imaging technology:

1. Put the barium into the enema tube, connect the catheter and disinfect the anal canal, release a small amount of barium, and exclude a small amount of gas in the front of the anal canal. Hang the infusion tube on the infusion stand at a height of 1M from the countertop. The temperature of the contrast medium and the body temperature are the same.

2. Take the left side of the knee flexion, insert the anal canal into the anal depth of about 10CM.

3. Take the supine position, raise the right side approximately, and slowly infuse the barium agent under the perspective. When the barium agent enters the descending colon through the sigmoid colon and reaches the spleen, the left side of the patient will be elevated, which will help the barium agent enter the transverse colon. Colonic liver curvature, ascending colon, rectum, cecum.

4. When the barium reaches the ascending colon, stop the perfusion and fill the cecum with position and technique.

Colonography related diseases

Enteritis, Pediatric constipation, Pediatric ulcerative colitis, Pediatric Crohn's disease, Intestinal fistula, Intestinal polyposis, Colonic diverticula in the elderly, Pediatric lymphoid polyps, Constipation, Juvenile polyps

Colonography- related symptoms

Formation of hard faeces in the colon, intestinal dysfunction, toxic megacolon, facial flaming mother spot, digestive tract stenosis, bloating, anemia, abdominal mass, abdominal pain, vomiting and melena

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