Manual and Automated Polyp Measurement
作者： Jun Yong Jeong , Min Ju Kim , Sam Soo Kim
DOI: 10.1016/J.ACRA.2007.10.006
关键词:
摘要: Rationale and Objectives The purpose of this study was to assess (1) the agreement two-dimensional (2D) three-dimensional (3D) manual automated polyp linear diameter measurements at CT colonography (CTC), with optical colonoscopic equivalents (2) intraobserver interobserver CTC measurements. Materials Methods Using same system, two radiologists independently measured maximum 44 polyps (reference size 3–15 mm) matched on colonoscopy: 2D optimized multiplanar reformatted planes standard window settings (level 1500 HU, width −200 HU), 3D measurement software calipers software. After 2 weeks, were again. Compatibility that colonoscopy reproducibility assessed statistically. Results In measurement, analyzed 41 in measurement; three could not be extracted. Although difference noted for automated, 3D, measurements, statistically supported only both observers. However, 95% limits wide all methods. When categorized according 2D, showed “good” agreement. good excellent measurement. Conclusion Manual demonstrated trends better approximation than or And eliminated variability. For noninvasive surveillance, are expected measure medium-sized sufficient variability, especially if combined
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