Data Analysis and Interpretation Strategies
10.1055/b-0034-91851 Data Analysis and Interpretation Strategies After the CT examination is complete, the image data are transferred via a network or via data storage media from the CT scanner to…
Patient Preparation
10.1055/b-0034-91847 Patient Preparation Just as for colonoscopy, proper bowel cleansing is necessary for CT colonography. As residual intraluminal fluids cannot be removed during the examination, a colon that is as…
Polyp Measurement
10.1055/b-0034-91853 Polyp Measurement Criteria for Correct Measurement of Polyps In general, polyps found on CT colonography are divided according to size into small (<6 mm), medium-size (6–9 mm), and large…
CT Examination Technique
10.1055/b-0034-91849 CT Examination Technique In the years since CT colonography was first introduced, significant advances have been made in scanner technology and in postprocessing software. The first attempts at colonic…
Risk Profile of CT Colonography
10.1055/b-0034-91850 Risk Profile of CT Colonography CT colonography is considered a safe, noninvasive method of examining the entire colon. Generally it is a less burdensome examination that is preferred by…
Colon Distension
10.1055/b-0034-91848 Colon Distension A well-distended colon is a basic requirement for performing CT colonography, since it can be very difficult or even impossible to evaluate intraluminal lesions located in collapsed…
Indications
10.1055/b-0034-91844 Indications Diagnostic CT Colonography Incomplete Optical Colonoscopy Incomplete or failed conventional colonoscopy is one of the most frequent indications for CT colonography. Conventional colonoscopy is considered incomplete if the…
Contraindications
10.1055/b-0034-91845 Contraindications Contraindications include all conditions under which CT colonography could be harmful to the patient as well as situations in which it offers no diagnostic benefit. Among the contraindications…
Hydrogen Breath Tests for Diagnosis of Carbohydrate Malabsorption and Small Intestinal Bacterial Overgrowth
Hydrogen Breath Tests for Diagnosis of Carbohydrate Malabsorption and Small Intestinal Bacterial Overgrowth Allen A. Lee, MD Jason R. Baker, PhD Hydrogen breath tests (HBTs) are common, noninvasive, but indirect…
Anorectal Manometry and Biofeedback
Anorectal Manometry and Biofeedback Jason R. Baker, PhD Anorectal manometry is a test of anorectal function that can provide useful information about disorders that affect defecation and continence. There are…
