Related Experiment Video
Updated: Jun 13, 2026

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
Published on: September 27, 2020
Current techniques in the performance, interpretation, and reporting of CT colonography
Peter D Poullos1, Christopher F Beaulieu
1Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, Room H-1307, Stanford, CA 94305-5105, USA. ppoullos@stanford.edu
Computed tomographic colonography (CTC) requires optimized technical components for high-quality colon imaging and accurate polyp detection. This review covers patient preparation, image acquisition, and interpretation methods for best results.
Area of Science:
- Medical Imaging
- Gastroenterology
- Radiology
Background:
- Computed tomographic colonography (CTC) is an imaging technique for colorectal cancer screening.
- Accurate polyp detection is crucial for effective colorectal cancer prevention.
- Optimizing CTC technical elements is essential for diagnostic performance.
Purpose of the Study:
- To provide a comprehensive overview of the technical aspects of CTC.
- To review current best practices and evidence for CTC procedures.
- To highlight the importance of optimizing each technical component for polyp detection.
Main Methods:
- Review of current literature and evidence-based recommendations for CTC.
- Detailed examination of patient preparation protocols.
- Analysis of image acquisition parameters and interpretation strategies.
Main Results:
- High-quality imaging of a cleansed, distended colon is achievable with optimized CTC techniques.
- Each technical component, from preparation to interpretation, influences diagnostic sensitivity.
- Evidence-based practices are crucial for maximizing polyp detection rates.
Conclusions:
- Optimizing all technical components of CTC is paramount for achieving high sensitivity in polyp detection.
- Adherence to best practices in patient preparation, image acquisition, and interpretation is recommended.
- Further refinement of CTC techniques can improve its efficacy in colorectal polyp screening.
Related Concept Videos
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Imaging Studies for Cardiovascular System V: CT
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Computed Tomography
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Radiological Investigation I: X-ray and CT

