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- Title
Electronic colon-cleansing for CT colonography: diagnostic performance.
- Authors
Juchems, Markus S.; Ernst, Andrea; Johnson, Peter; Virmani, Sunny; Brambs, Hans-Juergen; Aschoff, Andrik J.
- Abstract
<bold>Background: </bold>The purpose of this study was to evaluate whether an electronic-colonic-cleansing (ECC) algorithm is beneficial for the diagnostic performance compared to a CT colonography (CTC) evaluation without electronic cleansing in tagged datasets. <bold>Methods: </bold>Two blinded readers evaluated CTC datasets from 79 patients with 153 colorectal polyps confirmed by optical colonoscopy. Cases were read in a randomized order with and without the use of electronic colon-cleansing software. Per-polyp sensitivity, per-polyp/per-patient specificity and reading times (with and without ECC) have been calculated and reported. <bold>Results: </bold>Per-polyp sensitivity for polyps >6 mm without using ECC was 60.4% (Reader 1: 59.7%, Reader 2: 61.1%), while polyps >10 mm were detected with a sensitivity of 58.3% (Reader 1: 66.7%, Reader 2: 50%). On electronically cleansed datasets, the sensitivity was 73.6% (Reader 1: 76.4%; Reader 2: 70.8%) for polyps >6 mm and 83.3% (Reader 1: 83.3%; Reader 2: 83.3%), respectively. Per-patient specificity was 75% without using cleansing (Reader 1: 68%, Reader 2: 82%) and 81.5% using ECC (Reader 1: 86%, Reader 2: 77%). <bold>Conclusion: </bold>Reading CTC cases using ECC software improves sensitivity in detecting clinically relevant colorectal polyps.
- Subjects
VIRTUAL colonoscopy; TOMOGRAPHY; POLYPS; COLONOSCOPY; TUMORS; PATIENTS
- Publication
Abdominal Imaging, 2009, Vol 34, Issue 3, p359
- ISSN
0942-8925
- Publication type
journal article
- DOI
10.1007/s00261-008-9386-6