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Physician knowledge and appropriate utilization of computed tomographic colonography in colorectal cancer screening

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Abstract

Goals

To assess physician understanding of computed tomographic colonography (CTC) in colorectal cancer (CRC) screening guidelines in a pilot study.

Background

CTC is a sensitive and specific method of detecting colorectal polyps and cancer. However, several factors have limited its clinical availability, and CRC screening guidelines have issued conflicting recommendations.

Study

A web-based survey was administered to physicians at two institutions with and without routine CTC availability.

Results

398 of 1655 (24%) participants completed the survey, 59% was from the institution with routine CTC availability, 52% self-identified as trainees, and 15% as gastroenterologists. 78% had no personal experience with CTC. Only 12% was aware of any current CRC screening guidelines that included CTC. In a multiple regression model, gastroenterologists had greater odds of being aware of guidelines (OR 3.49, CI 1.67–7.26), as did physicians with prior CTC experience (OR 4.81, CI 2.39–9.68), controlling for institution, level of training, sex, and practice type. Based on guidelines that recommend CTC, when given a clinical scenario, 96% of physicians was unable to select the appropriate follow-up after a CTC, which was unaffected by institution.

Conclusions

Most physicians have limited experience with CTC and are unaware of recent recommendations concerning CTC in CRC screening.

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References

  1. Halligan S, Altman D, Taylor S, et al. (2005) CT colonography in the detection of colorectal polyps and cancer: systematic review, meta-analysis, and proposed minimum data set for study level reporting. Radiology 237:893–904

    Article  PubMed  Google Scholar 

  2. Johnson C, Chen M, Toledano A, et al. (2008) Accuracy of CT colonography for detection of large adenomas and cancers. N Engl J Med 359:1207–1217

    Article  PubMed  CAS  Google Scholar 

  3. Mulhall B, Veerappan G, Jackson J (2005) Meta-analysis: computed tomographic colonography. Ann Intern Med 142:635–650

    PubMed  Google Scholar 

  4. Pickhardt P, Choi J, Hwang I, et al. (2003) Computed tomographic virtual colonoscopy to screen for colorectal neoplasia in asymptomatic adults. N Engl J Med 349:2191–2200

    Article  PubMed  CAS  Google Scholar 

  5. Pickhardt P, Nugent P, Mysliwiec P, et al. (2004) Location of adenomas missed by optical colonoscopy. Ann Intern Med 141:352–359

    PubMed  Google Scholar 

  6. Rockey DC, Paulson E, Niedzwiecki D, et al. (2005) Analysis of air contrast barium enema, computed tomographic colonography, and colonoscopy: prospective comparison. Lancet 365:305–311

    PubMed  CAS  Google Scholar 

  7. Regge D, Laudi C, Galatola G, et al. (2009) Diagnostic accuracy of computed tomographic colonography for the detection of advanced neoplasia in individuals at increased risk of colorectal cancer. JAMA 301:2453–2461

    Article  PubMed  CAS  Google Scholar 

  8. Graser A, Stieber P, Nagel D, et al. (2009) Comparison of CT colonography, colonoscopy, sigmoidoscopy and faecal occult blood tests for the detection of advanced adenoma in an average risk population. Gut 58:241–248

    Article  PubMed  CAS  Google Scholar 

  9. Meissner H, Breen N, Klabunde C, et al. (2006) Patterns of colorectal cancer screening uptake among men and women in the United States. Cancer Epidemiol Biomarkers Prev 15:389–394

    Article  PubMed  Google Scholar 

  10. McAlearney AS, Reeves KW, Dickinson SL, et al. (2008) Racial differences in colorectal cancer screening practices and knowledge within a low-income population. Cancer 112:391–398

    Article  PubMed  Google Scholar 

  11. Denberg TD, Melhado TV, Coombes JM, et al. (2005) Predictors of nonadherence to screening colonoscopy. J Gen Intern Med 20:989–995

    Article  PubMed  Google Scholar 

  12. Rockey DC (2009) Computed tomographic colonography: current perspectives and future directions. Gastroenterology 137:7–14

    Article  PubMed  Google Scholar 

  13. Burling D, Halligan S, Altman DG, et al. (2006) CT colonography interpretation times: effect of reader experience, fatigue, and scan findings in a multi-centre setting. Eur Radiol 16:1745–1749

    Article  PubMed  Google Scholar 

  14. Taylor SA, Halligan S, Burling D, et al. (2004) CT colonography: effect of experience and training on reader performance. Eur Radiol 14:1025–1033

    Article  PubMed  Google Scholar 

  15. Rockey DC, Barish M, Brill JV, et al. (2007) Standards for gastroenterologists for performing and interpreting diagnostic computed tomographic colonography. Gastroenterology 133:1005–1024

    Article  PubMed  Google Scholar 

  16. Levin B, Lieberman D, McFarland B, et al. (2008) Screening and surveillance for the early detection of colorectal cancer and adenomatous polyps, 2008: a joint guideline from the American Cancer Society, the US Multi-Society Task Force on Colorectal Cancer, and the American College of Radiology. CA Cancer J Clin 58:130–160

    Article  PubMed  Google Scholar 

  17. U.S. Preventive Services Task Force (2008) Screening for Colorectal Cancer: U.S. Preventive Services Task Force Recommendation Statement. Ann Intern Med 149:627–637

    Google Scholar 

  18. Garg S, Ahnen DJ (2010) Is computed tomographic colonography being held to a higher standard? Ann Intern Med 152:178–181

    PubMed  Google Scholar 

  19. Halligan S, Altman DG, Mallett S, et al. (2006) Computed tomographic colonography: assessment of radiologist performance with and without computer-aided detection. Gastroenterology 131:1690–1699

    Article  PubMed  Google Scholar 

  20. Bodily KD, Fletcher JG, Engelby T, et al. (2005) Nonradiologists as second readers for intraluminal findings at CT colonography. Acad Radiol 12:67–73

    Article  PubMed  Google Scholar 

  21. Dachman AH, Kelly KB, Zintsmaster MP, et al. (2008) Formative evaluation of standardized training for CT colonographic image interpretation by novice readers. Radiology 249:167–177

    Article  PubMed  Google Scholar 

  22. Ladabaum U, Song K, Fendrick AM (2004) Colorectal neoplasia screening with virtual colonoscopy: when, at what cost, and with what national impact? Clin Gastroenterol Hepatol 2:554–563

    Article  PubMed  Google Scholar 

  23. Vijan S, Hwang I, Inadomi J, et al. (2007) The cost-effectiveness of CT colonography in screening for colorectal neoplasia. Am J Gastroenterol 102:380–390

    Article  PubMed  Google Scholar 

  24. Hur C, Chung DC, Schoen RE, et al. (2007) The management of small polyps found by virtual colonoscopy: results of a decision analysis. Clin Gastroenterol Hepatol 5:237–244

    Article  PubMed  Google Scholar 

  25. Pickhardt PJ, Hassan C, Laghi A, et al. (2008) Small and diminutive polyps detected at screening CT colonography: a decision analysis for referral to colonoscopy. AJR Am J Roentgenol 190:136–144

    Article  PubMed  Google Scholar 

  26. Pickhardt PJ, Hassan C, Laghi A, et al. (2007) Cost-effectiveness of colorectal cancer screening with computed tomography colonography: the impact of not reporting diminutive lesions. Cancer 109:2213–2221

    Article  PubMed  Google Scholar 

  27. Sonnenberg A, Delco F, Bauerfeind P (1999) Is virtual colonoscopy a cost-effective option to screen for colon cancer? Am J Gastroenterol 94:2268–2274

    Article  PubMed  CAS  Google Scholar 

  28. Nadel M, Shapiro J, Klabunde C, et al. (2005) A national survey of primary care physicians’ methods for screening for fecal occult blood. Ann Intern Med 142:86–94

    PubMed  Google Scholar 

  29. Mysliwiec PA, Brown ML, Klabunde CN, et al. (2004) Are physicians doing too much colonoscopy? A national survey of colorectal surveillance after polypectomy. Ann Intern Med 141:264–271

    PubMed  Google Scholar 

  30. Shinners T, Pickhardt P, Taylor A, et al. (2006) Patient-controlled room air insufflation versus automated carbon dioxide delivery for CT colonography. Am J Roentgenol 186:1491–1496

    Article  Google Scholar 

  31. Iannaccone R, Laghi A, Catalano C, et al. (2004) Computed tomographic colonography without cathartic preparation for the detection of colorectal polyps. Gastroenterology 127:1300–1311

    Article  PubMed  Google Scholar 

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Correspondence to Harold Frucht.

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Chang, M.S., Shah, J.P., Amin, S. et al. Physician knowledge and appropriate utilization of computed tomographic colonography in colorectal cancer screening. Abdom Imaging 36, 524–531 (2011). https://doi.org/10.1007/s00261-011-9698-9

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  • DOI: https://doi.org/10.1007/s00261-011-9698-9

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