Technical procedure for CT colonoscopy with virtual endoscope

This article is professionally consulted by Master, Doctor Hoang Van Lan Duc - Doctor of Radiology - Department of Diagnostic Imaging and Nuclear Medicine - Vinmec Times City International General Hospital.

CT colonoscopy with virtual colonoscopy is a modern imaging method, allowing to detect abnormalities, lesions or tumor pathologies in the colon that many other methods do not perform. Okay.

Computerized tomography (CT scan) of the colon with virtual endoscopy is a technique that uses X-rays of a tomography machine to examine the entire colon. create an image of the colon. CT colonoscopy with virtual colonoscopy helps to detect abnormalities and lesions, especially tumor pathology in the colon that colonoscopy cannot perform.

CT colonoscopy with virtual colonoscopy is indicated for the following cases:
Examination of the proximal colon in cases where endoscopy cannot be performed due to narrow angle, folding, tumor entanglement, ... Patient Contraindication to colonoscopy due to anticoagulant treatment, allergy to endoscopic drugs, respiratory failure, ... Patient has symptoms of suspected colon tumor, colon polyp such as weight loss, colon Change in convenience, bloody stools, ...

The technical process of CT colonoscopy with virtual colonoscopy includes the following steps:
Step 1: Instruct the patient to lie supine on the scanning table. Prepare anal catheter, intravenous line. Step 2: Inflate with a catheter placed in the anus to distend the colon. Pump as much as the patient can tolerate. Step 3: In the patient's supine position, position the abdomen and assess the stretch of the colon. If the colon is not distended, continue pumping until full distention is achieved. Step 4: The next step in the CT colonoscopy procedure with virtual colonoscopy is to take slices from the dome of the diaphragm to the lower rectum. Can be combined with contrast injection. Step 5: Instruct the patient to lie on his stomach and continue to inflate the colon. Step 6: In the prone position, take an abdominal scan to locate and re-evaluate the stretch of the colon. Step 7: Scan the entire colon. Slices in supine and prone positions range in thickness from 2.5 mm. Step 8: Transfer data to a computer and use software to process and reproduce images with 2D cross-sections and supplement with 3D virtual endoscopic images on both prone and supine positions.

At Vinmec International General Hospital, the CT colonoscopy procedure with virtual colonoscopy is performed by a team of highly qualified and experienced doctors in the field of imaging, along with Modern equipment and machinery for accurate and fast results.
Master. Doctor Hoang Van Lan Duc was formally trained and graduated with a Master's degree from Hanoi Medical University. The doctor has more than 10 years of experience in the field of imaging, especially in diagnosing with emergency internal, surgical, abdominal, thoracic, musculoskeletal, neurological and thyroid, breast, ...
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