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PROSPECTIVE STUDY PREDICTING HISTOLOGY IN COLORECTAL LESIONS USING wNICE, wJNET AND MS CLASSIFICATIONS
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Leonardo Zorron Cheng Tao Pu1,2,
Takeshi Yamamura3,
Rajvinder Singh1,2 |
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1The University of Adelaide, 2Lyell McEwin Hospital (SA Health), 3Nagoya University Hospital |
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| Background: The commonest polyp classification used with NBI is the NICE classification. The JNET classification adds the differentiation of low/high grade adenomas. However both lack a category for sessile serrated adenomas/polyps (SSA/Ps). This was addressed with the WASP classification add-on. The previously described modified Sano’s (MS) classification also includes categories for SSA/Ps and low/high grade adenomas. This study aims to compare the accuracy of NICE/JNET+WASP (wNICE/wJNET) and MS classifications. Methods: Patients were prospectively enrolled and evaluated with magnified NBI. Polyps diagnosed with high confidence were included in the final analysis. For comparison purposes wJNET and MS adenomas were merged into one category (2A+2B and II+IIIa, respectively). Chi-squared test was used for statistics. Results: After exclusion of incomplete data, 483 polyps were evaluated. Accuracy and p values can be found in table 1. Conclusion: All classifications have similar accuracy but is better with merged wJNET. MS was superior to wJNET when considering unmerged data. |
Index Term 1: Colorectal polyps
Index Term 2: Narrow band imaging |
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