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Comparative Study
Journal Article
Multicenter Study
Cost-effectiveness of computed tomographic colonography: a prospective comparison with colonoscopy.
Acta Radiologica 2007 April
PURPOSE: To estimate the cost-effectiveness of detecting colorectal polyps with computed tomographic colonography (CTC) and subsequent polypectomy with primary colonoscopy (CC), using CC as the alternative strategy.
MATERIAL AND METHODS: A marginal analysis was performed regarding 103 patients who had had CTC prior to same-day CC at two hospitals, H-I (n = 53) and H-II (n = 50). The patients were randomly chosen from surveillance and symptomatic study populations (148 at H-I and 231 at H-II). Populations, organizations, and procedures were compared. Cost data on time consumption, medication, and minor equipment were collected prospectively, while data on salaries and major equipment were collected retrospectively. The effect was the (previously published) sensitivities of CTC and CC for detection of colorectal polyps > or = 6 mm (H-I, n = 148) or > or = 5 mm (H-II, n = 231).
RESULTS: Thirteen patients at each center had at least one colorectal polyp > or = 6 mm or > or = 5 mm. CTC was the cost-effective alternative at H-I (euro187 vs. euro211), while CC was the cost-effective alternative at H-II (euro239 vs. euro192). The cost-effectiveness (costs per finding) mainly depended on the sensitivity of CTC and CC, but the depreciation of equipment and the staff's use of time were highly influential as well.
CONCLUSION: Detection of colorectal polyps > or = 6 mm or > or = 5 mm with CTC, followed by polypectomy by CC, can be performed cost-effectively at some institutions with the appropriate hardware and organization.
MATERIAL AND METHODS: A marginal analysis was performed regarding 103 patients who had had CTC prior to same-day CC at two hospitals, H-I (n = 53) and H-II (n = 50). The patients were randomly chosen from surveillance and symptomatic study populations (148 at H-I and 231 at H-II). Populations, organizations, and procedures were compared. Cost data on time consumption, medication, and minor equipment were collected prospectively, while data on salaries and major equipment were collected retrospectively. The effect was the (previously published) sensitivities of CTC and CC for detection of colorectal polyps > or = 6 mm (H-I, n = 148) or > or = 5 mm (H-II, n = 231).
RESULTS: Thirteen patients at each center had at least one colorectal polyp > or = 6 mm or > or = 5 mm. CTC was the cost-effective alternative at H-I (euro187 vs. euro211), while CC was the cost-effective alternative at H-II (euro239 vs. euro192). The cost-effectiveness (costs per finding) mainly depended on the sensitivity of CTC and CC, but the depreciation of equipment and the staff's use of time were highly influential as well.
CONCLUSION: Detection of colorectal polyps > or = 6 mm or > or = 5 mm with CTC, followed by polypectomy by CC, can be performed cost-effectively at some institutions with the appropriate hardware and organization.
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