2003-03-01
Stool tagging applied in thin-slice multidetector computed tomography colonography
Publication
Publication
Journal of Computer Assisted Tomography , Volume 27 - Issue 2 p. 132- 139
Objective: To compare thin-slice multidetector computed tomography colonography
(CTC) that uses stool tagging with colonoscopy.
Method: One hundred fifty patients scheduled for colonoscopy underwent highresolution
CTC. An iodinated contrast agent was added to the preparation to tag the
residual colonic fluid and stool. The effect of fluid tagging was assessed first. Sensitivity
and specificity were calculated for two independent readers. In addition, values
were recalculated separately for the first and last 75 patients.
Results: Tagging was optimal in 95.3% of the cases, and reader confidence was
high. Sensitivities were 64.1%–66.7% (for the 2 readers) for 5- to 9-mm polyps and
91.7% for larger polyps. The overall specificity was 94.2% and 95%. Sensitivity
improved during the study for both 5- to 9-mm polyps (from 54.2%–58.3% to 80%)
and polyps larger than 9 mm (from 50% to 100%). Specificity changed nonuniformly.
Conclusion: The combination of fluid tagging and high-resolution scanning in
CTC showed high sensitivity and specificity, especially concerning sensitivity for
polyps of 10 mm and larger.
Additional Metadata | |
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doi.org/10.1097/00004728-200303000-00005, hdl.handle.net/1765/68989 | |
Journal of Computer Assisted Tomography | |
Organisation | Department of Radiology |
Thomeer, M., Carbone, I., Bosmans, H., Kiss, G., Bielen, D., Vanbeckevoort, D., … Marchal, G. (2003). Stool tagging applied in thin-slice multidetector computed tomography colonography. Journal of Computer Assisted Tomography, 27(2), 132–139. doi:10.1097/00004728-200303000-00005 |