Technical quality of CT colonography in relation with diverticular disease

Nicola Flor, Paolo Rigamonti, Giovanni Di Leo, Andrea Pisani Ceretti, Enrico Opocher, Francesco Sardanelli, Gian Paolo Cornalba

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Objective: The aim of the study is to explore how the technical quality of the examination was affected by diverticular disease. Materials and methods: We retrospectively evaluated a consecutive series of 78 subjects who underwent CTC for screening (n = 58) or staging (n = 20) colorectal cancer, 38 of them (49%) after an incomplete optical colonoscopy. Patients were administered a mild laxative and a iodinated contrast material for fecal tagging. We scored both the bowel preparation and the overall colon distension as poor, good, or optimal and measured the mean sigmoid colon diameter. We counted the number of diverticula and classified patients as having or not a severe diverticular disease (SDD). The number of the prompts of computer aided diagnosis (CAD) per patient was also considered. Mann-Whitney U and χ 2 tests were performed. Results: No CTC complications occurred. The bowel cleansing was poor in 8 (10%) patients, good in 29 (37%) and optimal in 41 (53%); colon distension was poor in 7 (9%) patients, good in 38 (49%), and optimal in 33 (42%). Fifty-four (69%) showed diverticula and 30 (38%) had an SDD. Bowel cleansing and distension were not significantly impaired by neither diverticula (p > 0.590) nor the SDD (p > 0.110). Mean sigmoid colon diameter was reduced in presence of diverticula (28 mm versus 23 mm, p = 0.009) or SDD (26 mm versus 22 mm, p = 0.016). The mean number of CAD prompts per patient was not significantly increased by the presence of SDD (p = 0.829). Conclusions: Bowel cleansing and distension at CTC were not influenced by the presence of diverticular disease.

Original languageEnglish
JournalEuropean Journal of Radiology
Volume81
Issue number3
DOIs
Publication statusPublished - Mar 2012

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Computed Tomographic Colonography
Diverticulum
Sigmoid Colon
Colon
Laxatives
Colonoscopy
Nonparametric Statistics
Contrast Media
Colorectal Neoplasms

Keywords

  • Colorectal cancer
  • Computed tomography
  • Computed tomography colonography
  • Diverticular disease
  • Optical colonoscopy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Technical quality of CT colonography in relation with diverticular disease. / Flor, Nicola; Rigamonti, Paolo; Di Leo, Giovanni; Ceretti, Andrea Pisani; Opocher, Enrico; Sardanelli, Francesco; Cornalba, Gian Paolo.

In: European Journal of Radiology, Vol. 81, No. 3, 03.2012.

Research output: Contribution to journalArticle

Flor, Nicola ; Rigamonti, Paolo ; Di Leo, Giovanni ; Ceretti, Andrea Pisani ; Opocher, Enrico ; Sardanelli, Francesco ; Cornalba, Gian Paolo. / Technical quality of CT colonography in relation with diverticular disease. In: European Journal of Radiology. 2012 ; Vol. 81, No. 3.
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abstract = "Objective: The aim of the study is to explore how the technical quality of the examination was affected by diverticular disease. Materials and methods: We retrospectively evaluated a consecutive series of 78 subjects who underwent CTC for screening (n = 58) or staging (n = 20) colorectal cancer, 38 of them (49{\%}) after an incomplete optical colonoscopy. Patients were administered a mild laxative and a iodinated contrast material for fecal tagging. We scored both the bowel preparation and the overall colon distension as poor, good, or optimal and measured the mean sigmoid colon diameter. We counted the number of diverticula and classified patients as having or not a severe diverticular disease (SDD). The number of the prompts of computer aided diagnosis (CAD) per patient was also considered. Mann-Whitney U and χ 2 tests were performed. Results: No CTC complications occurred. The bowel cleansing was poor in 8 (10{\%}) patients, good in 29 (37{\%}) and optimal in 41 (53{\%}); colon distension was poor in 7 (9{\%}) patients, good in 38 (49{\%}), and optimal in 33 (42{\%}). Fifty-four (69{\%}) showed diverticula and 30 (38{\%}) had an SDD. Bowel cleansing and distension were not significantly impaired by neither diverticula (p > 0.590) nor the SDD (p > 0.110). Mean sigmoid colon diameter was reduced in presence of diverticula (28 mm versus 23 mm, p = 0.009) or SDD (26 mm versus 22 mm, p = 0.016). The mean number of CAD prompts per patient was not significantly increased by the presence of SDD (p = 0.829). Conclusions: Bowel cleansing and distension at CTC were not influenced by the presence of diverticular disease.",
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N2 - Objective: The aim of the study is to explore how the technical quality of the examination was affected by diverticular disease. Materials and methods: We retrospectively evaluated a consecutive series of 78 subjects who underwent CTC for screening (n = 58) or staging (n = 20) colorectal cancer, 38 of them (49%) after an incomplete optical colonoscopy. Patients were administered a mild laxative and a iodinated contrast material for fecal tagging. We scored both the bowel preparation and the overall colon distension as poor, good, or optimal and measured the mean sigmoid colon diameter. We counted the number of diverticula and classified patients as having or not a severe diverticular disease (SDD). The number of the prompts of computer aided diagnosis (CAD) per patient was also considered. Mann-Whitney U and χ 2 tests were performed. Results: No CTC complications occurred. The bowel cleansing was poor in 8 (10%) patients, good in 29 (37%) and optimal in 41 (53%); colon distension was poor in 7 (9%) patients, good in 38 (49%), and optimal in 33 (42%). Fifty-four (69%) showed diverticula and 30 (38%) had an SDD. Bowel cleansing and distension were not significantly impaired by neither diverticula (p > 0.590) nor the SDD (p > 0.110). Mean sigmoid colon diameter was reduced in presence of diverticula (28 mm versus 23 mm, p = 0.009) or SDD (26 mm versus 22 mm, p = 0.016). The mean number of CAD prompts per patient was not significantly increased by the presence of SDD (p = 0.829). Conclusions: Bowel cleansing and distension at CTC were not influenced by the presence of diverticular disease.

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KW - Colorectal cancer

KW - Computed tomography

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KW - Diverticular disease

KW - Optical colonoscopy

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