Treatises
Comparison of diagnostic value of different gastroscopy methods for gastric cancer and precancerous lesions
Li Guiqing, Xu Lanzhi
Published 2020-12-01
Cite as IMHGN, 2020, 26(23): 3644-3647. DOI: 10.3760/cma.j.issn.1007-1245.2020.23.027
Abstract
ObjectiveTo compare the diagnostic value of different gastroscopy methods for gastric cancer and precancerous lesions.
MethodsA total of 80 patients with gastric cancer and precancerous lesions were selected in our hospital from February 2017 to March 2019. They were examined with narrowband imaging gastroscopy (method A), electronic magnification gastroscopy (method B), and high-definition intelligent staining gastroscopy (method C). The images of different gastroscopy methods were observed and recorded, and the pathological tissues were extracted for biopsy after the images of method C were collected. Based on the results of histology, the accuracy, sensitivity, and specificity of the three gastroscopy methods were compared.
ResultsThere were statistically significant differences in the clarity of glandular tube structure and microvascular structure among the three gastroscopy methods (all P<0.05); the image clarity of glandular tube structure (64 clear cases and 16 relatively clear cases) and microvascular structure (68 clear cases, 7 relatively clear cases, 3 relatively fuzzy cases, and 2 fuzzy cases) of method C were better than those of method B (allP<0.05). The three gastroscopy methods showed no statistically significant difference in sensitivity, specificity, or accuracy (allP>0.05); however, the sensitivity, specificity, and accuracy of method C (100.00%, 98.18%, 98.75%) were higher than those of the other two methods. For images of intestinal metaplasia, the sensitivity and accuracy of high-definition intelligent staining gastroscopy and narrowband imaging gastroscopy were higher (allP<0.05); for images of atrophic gastritis, the sensitivity of high-definition intelligent staining gastroscopy was significantly higher than that of the other two gastroscopy methods (allP<0.05).
ConclusionCompared with narrowband imaging gastroscope and electronic magnification gastroscope, high-definition intelligent staining gastroscope in the screening of gastric cancer and precancerous lesions has higher clarity, is more helpful to improve the recognition accuracy of intestinal metaplasia and atrophic gastritis. But for gastric cancer screening, the three have comparable diagnostic efficacy.
Key words:
Gastroscopy; Gastric cancer; Precancerous lesions; Diagnosis
Contributor Information
Li Guiqing
Department of Gastroenterology, Liaocheng Dongchangfu People's Hospital, Liaocheng 252000, China
Xu Lanzhi
Department of Gastroenterology, Liaocheng Dongchangfu People's Hospital, Liaocheng 252000, China
