Radiologist performance in differentiating polypoid early from advanced gastric cancer using specific CT criteria: emphasis on dimpling sign

AJR. American Journal of Roentgenology
Eun Sun LeeByung Ihn Choi

Abstract

The purpose of this study was to retrospectively determine whether there are specific CT features that can be used to differentiate polypoid early from advanced gastric cancer and to assess the performance of radiologists using specific CT findings for differentiation. A review of medical records yielded the cases of 46 patients, 27 with polypoid early gastric cancer and 19 with polypoid advanced gastric cancer, whose CT scans were available for review. Two radiologists retrospectively reviewed the CT images for the presence and depth of dimpling at the tumor base, the presence of vessel invagination at the dimpling site, thickening of the low-attenuating outer layer, perigastric infiltration, and transmural full-thickness enhancement of the lesion. Individual CT findings relevant as predictors were determined with univariate and multivariate analyses. Individual review of CT scans subsequently was performed by two other radiologists, who were blinded to tumor stage but aware of the results of univariate and multivariate analyses. Individual performance was evaluated with receiver operating characteristic analysis. The presence of severe dimpling greater than 3.5 mm at the base of the tumor (odds ratio, 31.3) had the highest od...Continue Reading

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Dec 21, 2007·AJR. American Journal of Roentgenology·Soo Jin KimByung Ihn Choi

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Citations

Jul 26, 2014·Ultrasonography·Chul Soon ChoiEun Sook Nam
Mar 16, 2019·The Journal of International Medical Research·Wei WangWeijun Peng

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