Comparative analysis of upper gastrointestinal endoscopy, double-contrast upper gastrointestinal barium X-ray radiography, and the titer of serum anti-Helicobacter pylori IgG focusing on the diagnosis of atrophic gastritisNobutake Yamamichi, Kazuhiko Koike, Yosuke Tsuji et al.|Gastric Cancer|2015Cited by 27
Associated Factors of Atrophic Gastritis Diagnosed by Double-Contrast Upper Gastrointestinal Barium X-Ray Radiography: A Cross-Sectional Study Analyzing 6,901 Healthy Subjects in JapanNobutake Yamamichi, Kazuhiko Koike, Chigaya Hirano et al.|PLoS ONE|2014Cited by 24
Atrophic gastritis and enlarged gastric folds diagnosed by double-contrast upper gastrointestinal barium X-ray radiography are useful to predict future gastric cancer development based on the 3-year prospective observationNobutake Yamamichi, Kazuhiko Koike, Chigaya Hirano et al.|Gastric Cancer|2015Cited by 22
Clinicopathological features and prognosis of developed gastric cancer based on the diagnosis of mucosal atrophy and enlarged folds of stomach by double-contrast upper gastrointestinal barium X-ray radiographyNobutake Yamamichi, Kazuhiko Koike, Takeshi Shimamoto et al.|Clinical Journal of Gastroenterology|2021Cited by 4
Relationship between the four grades of UGI-XR-based atrophic gastritis and the extent of endoscopy-based atrophic gastritis classified into seven categories according to the Kimura-Takemoto classification (C0 with no atrophic change and C1-O3 with various degrees of endoscopy-based atrophic change of gastric mucosa).Nobutake Yamamichi, Kazuhiko Koike, Chigaya Hirano et al.|Figshare|2015Cited by 0