Computed Tomography Colonography (CTC): Is It Really the Non-Invasive Option We Think It Is? A Patient Experience Study

Abstract

Aims: Computed tomography colonography (CTC) is seen as a more tolerable alternative to colonoscopy, but patients struggle with the steps required for optimal diagnostic imaging. This prospective study aims to understand the experience of patients undergoing CTC. Methods: A survey was completed by a convenience sample of patients before and after CTC over 7 months. The 13-item questionnaire covered pre-test information, overall and specific experience of the test. The responses were tabulated and analyzed using descriptive statistics. Qualitative free-text responses were coded for content and thematic analysis. Results: At a response rate of 51%, surveys were received from 41 patients. Overall, most patients (54%) found the investigation better than expected. However, 18% stated they were not informed of potential side effects. Side effects were experienced by 49% of patients, including diarrhea (34%) and abdominal pain (24%). About 59% experienced discomfort with gas insufflation, and 86% found turning during the investigation difficult. Conclusion: A significant proportion of patients undergoing CTC experience side effects and difficulties completing the investigation. Patient information is important to improve patient experience of CTC.

Bowel Preparation Burden, Rectal Pain and Abdominal Discomfort: Perspective of Participants Undergoing CT Colonography and Colonoscopy

“…Concerning abdominal discomfort, one study showed more than 50% of people undergoing CT colonoscopy experienced abdominal discomfort from gas insufflation contributing to difficulties completing the investigation [ 18 ], and 25% experienced this symptom 24 hours after colonoscopy [ 8 ]. Another study showed abdominal pain or discomfort during colonoscopy remained up to seven days and factors associated with discomfort included younger age, lower BMI, difficulty of examination and previous gynecopelvic surgery [ 37 ].…”

“…Similar to colonoscopy, bowel preparation with dietary restriction and laxative intake must be adhered before testing and a rectal catheter to inflate air or carbon dioxide in colon is typically used during CT colonography. Experiences of diarrhea, abdominal pain and discomfort with gas insufflation were unveiled [ 17 , 18 ].…”

“…Though, rectal pain and abdominal discomfort are noncritical complications, these unpleasant experiences in colonoscopy and CT colonography impeded CRC screening [ 18 ]. Underestimating moderate/severe pain in outpatient colonoscopy was reported despite the individual’s perception being important to improve experience regarding those procedures [ 18 , 10 ].…”