Low-Fiber Diet in Limited Bowel Preparation for CT Colonography: Influence on Image Quality and Patient Acceptance

Abstract

Use of a low-fiber diet in bowel preparation for CT colonography results in significantly less untagged feces and shows a trend toward better residue homogeneity.

CT colonography without cathartic preparation: positive predictive value and patient experience in clinical practice

“…In our study, the amount of iodine used (60 ml of diatrizoate meglumine and diatrizoate sodium, containing 22.2 g of iodine) was substantially lower than in any previous study, except those of Keeling et al [32] who used 15 g of iodine in frail elderly patients with a limited objective of ruling out gross pathological conditions and Liedenbaum et al [37] who compared the effects of different doses of iodine (45 g-22.5 g). In our study, diarrhoea, with a maximum of three stools per day and graded as mild by all except 12 patients, was declared by only 7.4% (52/700) of patients.…”

“…Most studies prescribe this diet for 2 or 3 days before the CTC examination. Low-fibre diets reduce residual bowel content and improve subjective tagging quality of residual faeces [37]. They are varied enough to barely cause any burden on patients, as evidenced by Liedenbaum el al who found no significant differences in acceptance, with respect to degree of burden, between patients who followed the restricted diet and those who did not [37].…”

Assessment of 3 Bowel Preparation Protocols for Computed Tomography Pneumocolonography in Normal Dogs

“…We used a much lower volume of contrast agent than used in people but still obtained acceptable fecal tagging without inducing liquid diarrhea. We combined fecal tagging with a low residue diet as previous work showed a low‐fiber diet can increase the quality of fecal tagging with iodinated contrast agents …”

Evaluation of two minimal-preparation regimes for CT colonography: optimising image quality and patient acceptability

“…Much work continues in attempting to establish a bowel preparation regime that balances the need for a colon with as little residual material as possible for accurate and safe exclusion of colorectal neoplasia and polyps with the smallest side effect profile to The use of a low-residue diet is a simple and effective way of reducing the volume of residual faecal material [24], with no difference in patient acceptance [25]. The exact timing of when to ask patients to commence a lowresidue diet has yet to be established [26,27].…”