Extracolonic findings at CT colonography: Evaluation of prevalence and cost in a screening population

Thomas M. Gluecker, C. Daniel Johnson, Lynn A. Wilson, Robert L. MacCarty, Timothy J. Welch, David Vanness, David A. Ahlquist

Research output: Contribution to journalArticle

206 Citations (Scopus)

Abstract

Background & Aims: To assess the prevalence and spectrum of extracolonic findings in a screening population undergoing computed tomography colonography (CTC), and to evaluate the short-term direct medical costs incurred from subsequent radiologic follow-up evaluation. Methods: Six hundred and eighty-one asymptomatic patients undergoing colonoscopy screening consented to a CTC examination. Extracolonic CT findings were classified into high, medium, and low importance. Clinical and radiologic follow-up, missed lesions, and outcomes were assessed by chart review (time interval, 410-1513 days; median, 913 days). Short-term direct medical costs of radiologic follow-up were determined based on Medicare 2002 reimbursement rates. Results: Extracolonic findings were found commonly. These were categorized as high clinical importance in 71 (10%) individuals, as medium importance in 183 individuals (27%), and as low importance in 341 individuals (50%). Subsequent medical or surgical interventions resulted from these findings in 9 of the 681 patients (1.3%). Costs of subsequent radiologic follow-up studies were calculated as $23,380.59 (average added costs per CTC examination $34.33). Conclusions: CTC commonly detects extracolonic findings that can be considered clinically important when applied to an asymptomatic screening population. Although such incidental findings add benefit to the screening intervention, moderate incremental costs are incurred based on additional radiologic procedures generated during short-term follow-up.

Original languageEnglish (US)
Pages (from-to)911-916
Number of pages6
JournalGastroenterology
Volume124
Issue number4
DOIs
StatePublished - Apr 1 2003

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Computed Tomographic Colonography
Costs and Cost Analysis
Tomography
Population
Incidental Findings
Colonoscopy
Medicare

All Science Journal Classification (ASJC) codes

  • Hepatology
  • Gastroenterology

Cite this

Gluecker, T. M., Johnson, C. D., Wilson, L. A., MacCarty, R. L., Welch, T. J., Vanness, D., & Ahlquist, D. A. (2003). Extracolonic findings at CT colonography: Evaluation of prevalence and cost in a screening population. Gastroenterology, 124(4), 911-916. https://doi.org/10.1053/gast.2003.50158
Gluecker, Thomas M. ; Johnson, C. Daniel ; Wilson, Lynn A. ; MacCarty, Robert L. ; Welch, Timothy J. ; Vanness, David ; Ahlquist, David A. / Extracolonic findings at CT colonography : Evaluation of prevalence and cost in a screening population. In: Gastroenterology. 2003 ; Vol. 124, No. 4. pp. 911-916.
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Gluecker, TM, Johnson, CD, Wilson, LA, MacCarty, RL, Welch, TJ, Vanness, D & Ahlquist, DA 2003, 'Extracolonic findings at CT colonography: Evaluation of prevalence and cost in a screening population', Gastroenterology, vol. 124, no. 4, pp. 911-916. https://doi.org/10.1053/gast.2003.50158

Extracolonic findings at CT colonography : Evaluation of prevalence and cost in a screening population. / Gluecker, Thomas M.; Johnson, C. Daniel; Wilson, Lynn A.; MacCarty, Robert L.; Welch, Timothy J.; Vanness, David; Ahlquist, David A.

In: Gastroenterology, Vol. 124, No. 4, 01.04.2003, p. 911-916.

Research output: Contribution to journalArticle

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T1 - Extracolonic findings at CT colonography

T2 - Evaluation of prevalence and cost in a screening population

AU - Gluecker, Thomas M.

AU - Johnson, C. Daniel

AU - Wilson, Lynn A.

AU - MacCarty, Robert L.

AU - Welch, Timothy J.

AU - Vanness, David

AU - Ahlquist, David A.

PY - 2003/4/1

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N2 - Background & Aims: To assess the prevalence and spectrum of extracolonic findings in a screening population undergoing computed tomography colonography (CTC), and to evaluate the short-term direct medical costs incurred from subsequent radiologic follow-up evaluation. Methods: Six hundred and eighty-one asymptomatic patients undergoing colonoscopy screening consented to a CTC examination. Extracolonic CT findings were classified into high, medium, and low importance. Clinical and radiologic follow-up, missed lesions, and outcomes were assessed by chart review (time interval, 410-1513 days; median, 913 days). Short-term direct medical costs of radiologic follow-up were determined based on Medicare 2002 reimbursement rates. Results: Extracolonic findings were found commonly. These were categorized as high clinical importance in 71 (10%) individuals, as medium importance in 183 individuals (27%), and as low importance in 341 individuals (50%). Subsequent medical or surgical interventions resulted from these findings in 9 of the 681 patients (1.3%). Costs of subsequent radiologic follow-up studies were calculated as $23,380.59 (average added costs per CTC examination $34.33). Conclusions: CTC commonly detects extracolonic findings that can be considered clinically important when applied to an asymptomatic screening population. Although such incidental findings add benefit to the screening intervention, moderate incremental costs are incurred based on additional radiologic procedures generated during short-term follow-up.

AB - Background & Aims: To assess the prevalence and spectrum of extracolonic findings in a screening population undergoing computed tomography colonography (CTC), and to evaluate the short-term direct medical costs incurred from subsequent radiologic follow-up evaluation. Methods: Six hundred and eighty-one asymptomatic patients undergoing colonoscopy screening consented to a CTC examination. Extracolonic CT findings were classified into high, medium, and low importance. Clinical and radiologic follow-up, missed lesions, and outcomes were assessed by chart review (time interval, 410-1513 days; median, 913 days). Short-term direct medical costs of radiologic follow-up were determined based on Medicare 2002 reimbursement rates. Results: Extracolonic findings were found commonly. These were categorized as high clinical importance in 71 (10%) individuals, as medium importance in 183 individuals (27%), and as low importance in 341 individuals (50%). Subsequent medical or surgical interventions resulted from these findings in 9 of the 681 patients (1.3%). Costs of subsequent radiologic follow-up studies were calculated as $23,380.59 (average added costs per CTC examination $34.33). Conclusions: CTC commonly detects extracolonic findings that can be considered clinically important when applied to an asymptomatic screening population. Although such incidental findings add benefit to the screening intervention, moderate incremental costs are incurred based on additional radiologic procedures generated during short-term follow-up.

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