The Use and Application of Computed Tomography Colonography - RAD04

The Use and Application of Computed Tomography Colonography

by Jennifer L. Gibson, PharmD
(4.5 / 463 ratings )

This course is credentialed for:
Radiologic Technology (1.00 CE Credit)

Price: $10.00
CE-PRO Price: $5.00


Computed tomography colonography uses computed tomography images of the large intestine to detect polyps and neoplasms in the colon and rectum. Techniques for performing CTC vary among institutions, but all CTC examinations require a bowel prep and colonic distention. The education and experience of the radiologist interpreting the CTC results is the most significant factor affecting the test. CTC is useful as a screening tool for colorectal cancer because it has high sensitivity and specificity for detecting medium — and large-size colon polyps. CTC also offers improved comfort and convenience over traditional screening modalities, including colonoscopy. Radiation exposure is the most significant risk factor associated with CTC, but protocols that minimize the radiation dose can mitigate the risk.


The goal of this computed tomography colonography continuing education program is to provide radiology technologists with an explanation of the factors influencing the use of CTC as a screening tool for colorectal cancer. After studying the information presented here, you will be able to:
  • Identify factors that affect CTC results
  • Explain the effectiveness of CTC in colorectal cancer screening
  • Describe risks associated with CTC

Approval Information
This course is designed for imaging and radiation therapists.
This activity is approved for Category A continuing education credit by the American Society of Radiologic Technologists (ASRT) for 12/12/2013 to 1/1/2017 and 5/7/2018 to 6/1/2021.
This activity may be available in multiple formats or from different sponsors. ARRT regulations state that an individual may not repeat a self-learning activity for credit if it was reported in the same or any subsequent biennium.

Course Originally Released on: 12/12/2013
Date of Most Recent Review: 11/6/2017
Course Termination/Update Date: 6/1/2021

Unless stated above, the planners and authors of this course have declared no relevant conflicts of interest that relate to this educational activity. Relias LLC guarantees this educational activity is free from bias.

Please see CE Course Instructions to learn how to earn CE credit for this module.

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Ashlee M - Torrington, WY  ·  Oct 04, 2019
very informative. I liked reading this course!
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Michael J - Austin, TX  ·  Sep 26, 2019
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Andrew S - Celina, TX  ·  Sep 18, 2019
well presented material and very informative
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Matthew F - El Mirage, AZ  ·  Aug 26, 2019
1. 5 3. As a radiography tech I learned alot just from this course in ct.
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Brett T - Surprise, AZ  ·  Aug 22, 2019
work with CT quite often as an xray tech never heard of this exam, cool
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Price: $10.00
CE-PRO Price: $5.00