Radiologie Ottobrunn, München
Radiologie Ottobrunn - Die sanfte Diagnostik

Early Detection of Colon Cancer

Early Detection of Cancer through CT of the Colon (Virtual Colonoscopy)

Colon cancer is the second most common cause of death for men in the western world, and third most common for women.
In about 90% of cases, colon cancer is the result of a malignant degeneration of polyps of the mucous membrane, the so-called adenomas.  Polyps of the colon are colon mucous membranes turned inside out.
The goal of this precautionary measure is therefore to recognize these mucous membrane polyps early in order to remove them selectively.  There is a 90% chance of recovery if the affected polyps are successfully removed.



When is a colonoscopy sensible?

Early detection of cancer of the colon through a virtual colonoscopy is motivated when:

there is colon cancer in the family
• a polyp is already diagnosed
• blood in the stool
• unexplained weight loss or loss of appetite
• when men or women reach the age of 45


How should I prepare for the examination?

As is the case with conventional endoscopy, the painless Virtual CT Colonoscopy also necessitates the emptying of the bowels. You will receive specific instructions from us.


How will the examination be done?

The x-ray assistant positions the patient comfortably on the examination table, situating the area to be examined in a coil, which serves as a transmitter and receiver of radio waves. Then, for the examination of the colon, the physician carefully inserts a narrow tube into the bowels, through which water flows into your colon.
Since the imaging sequences create considerable noise, the patient is fitted with a headset. An emergency ball is placed in the patient's hand, with which he or she can stop the examination instantly in case of an emergency. The patient and the x-ray technician can communicate by intercom at any time and the examination team always has full view of the patient.
An examination usually lasts about 15 minutes.
Occasionally a contrasting agent is injected into an arm vein during the examination, to strengthen the colour contrast between the blood vessels and the surrounding tissue.
After the examination you may resume your normal activities.


What do I feel during the examination?

The examination is completely painless.


Who assesses the examination results?

The radiologist assesses the scanned images at a special workstation and creates a report of the results.
Since the assessment is extensive, the results are not, immediately communicated, as would normally be the case. A new appointment should be made for a personal discussion with the physician.


What are the advantages compared to the risks?

Advantages: The conventional endoscopy is without a doubt a very effective method, however, many patients refuse it because it is painful, requires sedation and in most cases the loss of an entire workday. The conventional radiology examination of the small intestines is also time-consuming and requires x-rays. In contrast, an CT is completely non-intrusive and takes much less time, so that the rest of the day can be planned as usual.