The second ESGAR consensus statement on CT colonography

Emanuele Neri, Steve Halligan, Mikael Hellström, Philippe Lefere, Thomas Mang, Daniele Regge, Jaap Stoker, Stuart Taylor, Andrea Laghi

Research output: Contribution to journalArticlepeer-review


Objective: To update quality standards for CT colonography based on consensus among opinion leaders within the European Society of Gastrointestinal and Abdominal Radiology (ESGAR). Material and methods: A multinational European panel of nine members of the ESGAR CT colonography Working Group (representing six EU countries) used a modified Delphi process to rate their level of agreement on a variety of statements pertaining to the acquisition, interpretation and implementation of CT colonography. Four Delphi rounds were conducted, each at 2 months interval. Results: The panel elaborated 86 statements. In the final round the panelists achieved complete consensus in 71 of 86 statements (82 %). Categories including the highest proportion of statements with excellent Cronbach's internal reliability were colon distension, scan parameters, use of intravenous contrast agents, general guidelines on patient preparation, role of CAD and lesion measurement. Lower internal reliability was achieved for the use of a rectal tube, spasmolytics, decubitus positioning and number of CT data acquisitions, faecal tagging, 2D vs. 3D reading, and reporting. Conclusion: The recommendations of the consensus should be useful for both the radiologist who is starting a CTC service and for those who have already implemented the technique but whose practice may need updating. Key Points: • Computed tomographic colonography is the optimal radiological method of assessing the colon • This article reviews ESGAR quality standards for CT colonography • This article is aimed to provide CT-colonography guidelines for practising radiologists • The recommendations should help radiologists who are starting/updating their CTC services

Original languageEnglish
Pages (from-to)720-729
Number of pages10
JournalEuropean Radiology
Issue number3
Publication statusPublished - 2013


  • Colon
  • Computed tomography
  • CT colonography
  • Guidelines
  • Polyps

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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