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Rectum and large intestine abnormalities and changes can be detected with theuse of virtual colonoscopy. The abdominal organs will be the focus of the computerizedtopography, which gives pictures of the mentioned organs. These cross-sectionalnumerous pictures will state what the actual state of the rectum and colon is. Insertionof a scope and sedation is not a part of this procedure. This may be consideredstill to be an experimental exam, which is performed for the colon cancerscreening. Many problems and not only those associated with colon and rectum can belocated, such as spleen, pancreas, liver, and kidney problems. This happens dueto the whole pelvic and abdominal area included in this exam.

Preparation for the Exam

The colon needs to be clean for this procedure, since the results may beaffected by this. Prior to the exam, a proper diet is needed, while eating isprohibited on the day of the procedure. No fluids can be taken after themidnight on the day before the procedure. But prior to this, broth, tea, plainwater can be consumed. Use of any kind of laxative is needed the night beforethe procedure. The residue of stool and abnormalities of the colon can bedetected by the medications that need to be used, since they will tag the stool andidentify it. Also, some medications that are already are being used may needto be eliminated from the use few days before the virtual colonoscopy. Talk toyour doctor about this. This procedure is not very confortable so new ways ofperforming it are examined. Some new ways include the use of a barium smoothie, which is the only pre-procedure activity that a patient has to do. The tissue that isabnormal and the stool can be distinguished due to the attachment of the bariumto these items. Some small dosages of radiation are possible during the CTscan.

The Exam

Medications are used prior to the procedure and they help a patient avoid cramps, which are apossibility. While laying down, the small tube is placed in the rectum and thecarbon dioxide or air then fills the colon. The images are then created as thegas enters. All of this is done while lying on the side. Then, you need to lieon the back. The body is then scanned in the CT scanning machine. The imageswill be taken again, but while lying on the stomach. The use of contrast agent is apossibility as well, and after 10 minutes, the results are given. Due to the gas release, bloating may be felt. Regular activities can be done immediatelyafter the procedure, along with the diet practiced before the virtualcolonoscopy. We advise walking as a way of relieving the bloating emotion. Ifthe test is negative, no risks and abnormalities have been found. But if thevirtual colonoscopy is positive, polyps are present. They may be removed the sameday, but some doctors may first take samples in order to detect their number andsize.

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