You Y, You QX. Clinical value of narrow band imaging endoscopy in diagnosis of superficial esophageal carcinoma and precancerous lesions.
Shijie Huaren Xiaohua Zazhi 2014;
22:4473-4477. [DOI:
10.11569/wcjd.v22.i29.4473]
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Abstract
AIM: To assess the clinical value of narrow band imaging endoscopy in the diagnosis of superficial esophageal carcinoma and precancerous lesions.
METHODS: Eighty-two patients diagnosed with superficial esophageal carcinoma and precancerous lesions by endoscopy were included. The data of endoscopy, narrow-band imaging (NBI), and chromoendoscopy were analyzed. The three methods were compared in terms of the definition of lesions, the opening of glands in the lesion site and capillary structure. The detection rates of superficial esophageal carcinoma and precancerous lesion by NBI and iodine staining were assessed by comparing with pathological results.
RESULTS: The definition of diseased region by NBI and iodine staining was significantly better than that by endoscopy (287 vs 197, 294 vs 197, P < 0.01), although there was no significant difference between NBI and iodine staining (287 vs 294, P > 0.05). The definition of the opening of glands in the lesion site and capillary structure by NBI was significantly better than that by endoscopy (290 vs 154, 286 vs 155, P < 0.01). The detection rate of low-grade mucosal neoplasia in the NBI group was significantly lower than that in the iodine staining group (77.50% vs 100.00%, P < 0.01), and the rate of missed diagnosis of low-grade mucosal neoplasia was significantly higher in the NBI group than in the iodine staining group (13.41% vs 0.00%, P < 0.01). The sensitivity, specificity, and accuracy of NBI and iodine staining for detecting high-grade mucosal neoplasia were significantly higher than those for detecting low-grade mucosal neoplasia (73.81% vs 23.81%, 77.50% vs 47.50%, 75.61% vs 35.37%, 59.52% vs 40.48%, 65.00% vs 35.00%, 62.20% vs 37.80%, P < 0.05). The sensitivity, specificity and accuracy of NBI for detecting high-grade mucosal neoplasia were significantly higher than those of iodine staining (73.81% vs 59.52%, 77.50% vs 65.00%, 75.61% vs 62.20%, P < 0.05).
CONCLUSION: NBI can better define lesions, the opening of glands in the lesion site and vascular structure. NBI combined with iodine staining is helpful for improving the accuracy of diagnosis of superficial esophageal carcinoma and precancerous lesions.
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