Virtual Colonoscopy Procedure

How Does it Work? A Patient Guide...

Virtual Colonoscopy Procedure
Virtual Colonoscopy Procedure
Follow an easy physician recommended preparation. During the procedure only a small tube is inserted into the rectum and the colon is inflated. Pictures are taken of your abdomen and pelvis using a CAT scan while lying on your back and then on your stomach. In each position you must hold your breath for around 15 seconds while the CAT scan takes pictures of your abdomen and pelvis

What is Viatronix V3D CT Colonography?
CTC - is a noninvasive test that helps physicians diagnose medical conditions, such as polyps, in the colon (large intestine), by viewing the detailed 3D image of the colon, and performing a "real time volume rendered virtual fly-through" to see the inside walls of the colon.

A CT scan is performed of the abdominal and pelvic area. The CT images are then transferred to the Viatronix V3D-Colon system. The system converts these 2D CT images into a 3D volume image of the colon. The Viatronix V3D-Colon system automatically segments the colon (large intestine) for a clear view to be reviewed on the computer monitor screen.

Why is CTC performed?
The main reason for performing CT colonography is to screen for polyps and masses in the colon. Polyps are protrusions that grow from the inside wall of the colon. If left undiagnosed, polyps can grow and possibly turn into cancer.

The Viatronix V3D-Colon system provides state of the art tools that help the physician identify polyps so they can be removed, if needed, before they have the chance to turn into cancer. The earlier polyps are detected, generally the better the outcome.

Exam Preparation:
On the day of the exam you will go to the hospital or imaging facility that your physician directs you to go to. You will usually have two quick CT scans. One scan will be done while lying on your back and another on your stomach. Sometimes a scan will be done while lying on your side.

Prior to the scan, the colon is inflated with either room air or CO2 (carbon dioxide). When it is empty the colon usually collapses. Therefore it is necessary to inflate the colon so that the inside walls of the colon can be viewed and examined. To obtain this, a small tube will be placed in the patient's rectum. Through this tube, the air or CO2 will be pumped in the colon. Sometime patients experience a feeling of pressure or fullness, but usually no pain. Once the colon if filled, you will be ready for scan.

You will have your arms above your head out of the way of your abdominal area. You will be asked to hold your breath for a few seconds during the actual scan, to ensure there is no movement on the images. This is usually less than 15 seconds.

Once the scan is completed, you will be moved out of the scanner, allowed to leave, and return to normal activities. The images are transferred to the Viatronix V3D-Colon system for interpretation. Usually the time it takes a patient to dress and go back to the waiting room, the exam is ready to be read by the physician.

Sending the report to your physician:
Some radiologists sit down with their patients and show them the exam on the computer and discuss the report with them. Other radiologists will review the images and send a report to the patient's referring physician.

Some radiologists make same day referrals to a gastroenterologist in case a polyp is found and has to be removed. This same day referral means the patient WILL NOT have to do an "Exam Preparation" (diet, laxative, etc…) again for the follow up optical colonoscopy (to remove a polyp) since they are already "prepared."

Benefits of Viatronix V3D Colon Module:

  • Calls for more comfortable, agreeable preparation

  • Provides accurate examination results as proven in multiple clinical trials over the past 10 years

  • Offers multiple diagnostic tools for the examining physician

  • Offers a minimally-invasive alternative to optical colonoscopy

  • Takes significantly less time

  • Does not require sedation

  • Benefits for Insurers/Self-Insured Employers

  • A fraction of the cost of optical colonoscopy

  • Potentially greater patient compliance through increased patient use. Several screening studies done on Viatronix has shown significant increase in patient compliance for this type of an exam

  • Greater compliance and resulting early polyp detection/removal increases the probability of avoidance of high cost cancer cases

  • Less time away from work for the procedure



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