Recent developments in CT colonography.

CT colonography allows reliable, non-invasive, rapid, high resolution imaging of the whole large bowel. Recent advances in technology such as computer-aided detection (CAD), scanning with or without bowel preparation, and low radiation are continually developing to improve the efficacy of this technique. This review will update the reader as to ongoing developments while presenting current thinking from the gastroenterological perspective.

[1]  K. Kopecky,et al.  An initial experience with screening for colon polyps using spiral CT with and without CT colography (virtual colonoscopy) , 1999, Gastrointestinal endoscopy.

[2]  T. Fujii,et al.  Flat and depressed colonic neoplasms: a prospective study of 1000 colonoscopies in the UK , 2000, The Lancet.

[3]  S. Kudo,et al.  Depressed Type of Colorectal Cancer , 1995, Endoscopy.

[4]  J. Olsen,et al.  Randomised study of screening for colorectal cancer with faecal-occult-blood test , 1996, The Lancet.

[5]  James Perumpillichira,et al.  CT colonography: digital subtraction bowel cleansing with mucosal reconstruction initial observations. , 2003, Radiology.

[6]  M. Macari,et al.  Comparison of time-efficient CT colonography with two- and three-dimensional colonic evaluation for detecting colorectal polyps. , 2000, AJR. American journal of roentgenology.

[7]  Steven M. Miller,et al.  Prevertebral ganglia and intestinofugal afferent neurones , 2002, Gut.

[8]  K. Awai,et al.  Pulmonary nodules at chest CT: effect of computer-aided diagnosis on radiologists' detection performance. , 2004, Radiology.

[9]  M F Dixon,et al.  Flat adenomas in the United Kingdom: are treatable cancers being missed? , 1998, Endoscopy.

[10]  S D Wall,et al.  Colorectal neoplasia: performance characteristics of CT colonography for detection in 300 patients. , 2001, Radiology.

[11]  Hiroyuki Yoshida,et al.  Three-dimensional computer-aided diagnosis scheme for detection of colonic polyps , 2001, IEEE Transactions on Medical Imaging.

[12]  A. Zauber,et al.  The National Polyp Study , 1990 .

[13]  M. Zalis,et al.  Digital subtraction bowel cleansing in CT colonography. , 2001, AJR. American journal of roentgenology.

[14]  D. Rex.  Is virtual colonoscopy ready for widespread application? , 2003, Gastroenterology.

[15]  C. Johnson,et al.  Prospective blinded evaluation of computed tomographic colonography for screen detection of colorectal polyps. , 2003, Gastroenterology.

[16]  Guy Marchal,et al.  Computer-aided diagnosis in virtual colonography via combination of surface normal and sphere fitting methods , 2002, European Radiology.

[17]  Hiroyuki Yoshida,et al.  Automated Knowledge-Guided Segmentation of Colonic Walls for Computerized Detection of Polyps in CT Colonography , 2002, Journal of computer assisted tomography.

[18]  A. Zauber,et al.  The advanced adenoma as the primary target of screening. , 2002, Gastrointestinal endoscopy clinics of North America.

[19]  K R Hoffmann,et al.  CT colonography with three-dimensional problem solving for detection of colonic polyps. , 1998, AJR. American journal of roentgenology.

[20]  L. Weinstock,et al.  Patient Preferences for CT Colonography, Conventional Colonoscopy, and Bowel Preparation , 2003, American Journal of Gastroenterology.

[21]  T. Vogl,et al.  Computer-aided diagnosis in contrast-enhanced CT colonography: an approach based on contrast , 2002, European Radiology.

[22]  D. Rex,et al.  Colonoscopic miss rates of adenomas determined by back-to-back colonoscopies. , 1997, Gastroenterology.

[23]  Jason A. Dominitz,et al.  Complications of colonoscopy. , 2003 .

[24]  S. Cross,et al.  A prospective clinicopathological and endoscopic evaluation of flat and depressed colorectal lesions in the United Kingdom. , 2003 .

[25]  C. Catalano,et al.  Detection of colorectal lesions: lower-dose multi-detector row helical CT colonography compared with conventional colonoscopy. , 2003, Radiology.

[26]  Y. Masutani,et al.  Computerized detection of colonic polyps at CT colonography on the basis of volumetric features: pilot study. , 2002, Radiology.

[27]  A. Hara,et al.  Detection of flat lesions in the colon with CT colonography , 2002, Abdominal Imaging.

[28]  C. Johnson,et al.  Extracolonic findings at CT colonography: evaluation of prevalence and cost in a screening population. , 2003, Gastroenterology.

[29]  Hans Feichtinger,et al.  High-grade dysplasia and invasive carcinoma in colorectal adenomas: a multivariate analysis of the impact of adenoma and patient characteristics , 2002, European journal of gastroenterology & hepatology.

[30]  P. Pickhardt,et al.  Computed tomographic virtual colonoscopy to screen for colorectal neoplasia in asymptomatic adults. , 2003, The New England journal of medicine.

[31]  Guy Marchal,et al.  Dry preparation for virtual CT colonography with fecal tagging using water-soluble contrast medium: initial results , 2003, European Radiology.

[32]  A. M. Youssef,et al.  Automated polyp detection at CT colonography: feasibility assessment in a human population. , 2001, Radiology.

[33]  J. Wardle,et al.  Single flexible sigmoidoscopy screening to prevent colorectal cancer: baseline findings of a UK multicentre randomised trial , 2002, The Lancet.

[34]  S. Woolf,et al.  Colorectal cancer screening and surveillance: clinical guidelines and rationale-Update based on new evidence. , 2003, Gastroenterology.

[35]  M. Morrin,et al.  Screening virtual colonoscopy--ready for prime time? , 2003, The New England journal of medicine.

[36]  L M Schuman,et al.  Reducing mortality from colorectal cancer by screening for fecal occult blood. Minnesota Colon Cancer Control Study. , 1993, The New England journal of medicine.

[37]  Hiroyuki Yoshida,et al.  Automated Segmentation of Colonic Walls for Computerized Detection of Polyps in CT Colonography , 2001, Journal of computer assisted tomography.

[38]  J G Fletcher,et al.  CT colonography without cathartic preparation: feasibility study. , 2001, Radiology.

[39]  G. Marchal,et al.  Patient acceptance for CT colonography: what is the real issue? , 2002, European Radiology.

[40]  C. Williams,et al.  A prospective study of colonoscopy practice in the UK today: are we adequately prepared for national colorectal cancer screening tomorrow? , 2004, Gut.

[41]  Hao Wang,et al.  CT colonography data interpretation: effect of different section thicknesses--preliminary observations. , 2003, Radiology.

[42]  Syed G. Shah,et al.  Total colonic dye-spray increases the detection of diminutive adenomas during routine colonoscopy: a randomized controlled trial. , 2002, Gastrointestinal endoscopy.

[43]  P. Shorvon.  Commentary on: Observer Variation in the Detection of Colorectal Neoplasia on Double-contrast Barium Enema: Implications for Colorectal Cancer Screening and Training , 2003 .

[44]  J. Ferrucci,et al.  Colon cancer screening with virtual colonoscopy: promise, polyps, politics. , 2001, AJR. American journal of roentgenology.

[45]  Stuart A. Taylor,et al.  Acceptance by patients of multidetector CT colonography compared with barium enema examinations, flexible sigmoidoscopy, and colonoscopy. , 2003, AJR. American journal of roentgenology.

[46]  Reto Meuli,et al.  Effect of investigator experience in CT colonography , 2002, European Radiology.

[47]  S. Moss,et al.  Effect of faecal occult blood screening on mortality from colorectal cancer: results from a randomised controlled trial , 2002, Gut.

[48]  C. McCollough,et al.  CT colonography: determination of optimal CT technique using a novel colon phantom , 2004, Abdominal Imaging.

[49]  R. Fletcher.  The end of barium enemas? , 2000, The New England journal of medicine.

[50]  M. Macari,et al.  Colorectal neoplasms: prospective comparison of thin-section low-dose multi-detector row CT colonography and conventional colonoscopy for detection. , 2002, Radiology.

[51]  Stuart A. Taylor,et al.  CT colonography: effect of experience and training on reader performance , 2004, European Radiology.

[52]  R. Jeffrey,et al.  Automated polyp detector for CT colonography: feasibility study. , 2000, Radiology.

[53]  Marc Baekelandt,et al.  Dietary fecal tagging as a cleansing method before CT colonography: initial results polyp detection and patient acceptance. , 2002, Radiology.

[54]  Carlo Catalano,et al.  Feasibility of ultra-low-dose multislice CT colonography for the detection of colorectal lesions: preliminary experience , 2003, European Radiology.

[55]  J. Yee,et al.  Computerized tomographic colonography: performance evaluation in a retrospective multicenter setting. , 2003, Gastroenterology.

[56]  Perry J Pickhardt,et al.  Electronic cleansing and stool tagging in CT colonography: advantages and pitfalls with primary three-dimensional evaluation. , 2003, AJR. American journal of roentgenology.

[57]  W. Hogan,et al.  Volume and yield of screening colonoscopy at a tertiary medical center after change in medicare reimbursement. , 2003 .

[58]  C. Bartram.  Observer variation in the detection of colorectal neoplasia on double-contrast barium enema: implications for colorectal cancer screening and training. , 2004, Clinical radiology.

[59]  A. Zauber,et al.  The National Polyp Study. Patient and polyp characteristics associated with high-grade dysplasia in colorectal adenomas. , 1990, Gastroenterology.

[60]  Karl Ludwig,et al.  CT colonography: Protocol optimization with multi-detector row CT--study in an anthropomorphic colon phantom. , 2003, Radiology.

[61]  A. Laghi,et al.  Experimental colonic phantom for the evaluation of the optimal scanning technique for CT colonography using a multidetector spiral CT equipment , 2003, European Radiology.

[62]  W. Atkin,et al.  Surveillance guidelines after removal of colorectal adenomatous polyps , 2002, Gut.

[63]  S. Moss,et al.  Randomised controlled trial of faecal-occult-blood screening for colorectal cancer , 1989, The Lancet.

[64]  S. Halligan,et al.  Use of multidetector-row CT colonography for detection of colorectal neoplasia in patients referred via the Department of Health "2-Week-wait" initiative. , 2003, Clinical radiology.

[65]  Colorectal cancer prevention 2000: screening recommendations of the American College of Gastroenterology , 2000 .

[66]  E. Svensson,et al.  Patient acceptance of CT colonography and conventional colonoscopy: prospective comparative study in patients with or suspected of having colorectal disease. , 2002, Radiology.

[67]  L. Tabár,et al.  Potential contribution of computer-aided detection to the sensitivity of screening mammography. , 2000, Radiology.

[68]  Benjamin Littenberg,et al.  CT colonography: multiobserver diagnostic performance. , 2002, Radiology.

[69]  B. Levin,et al.  Emerging Technologies in Screening for Colorectal Cancer: CT Colonography, Immunochemical Fecal Occult Blood Tests, and Stool Screening Using Molecular Markers , 2003, CA: a cancer journal for clinicians.