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Start Over Author "Kenro Kawada" Journal endoscopy
3 results on '"Kenro Kawada"'

1. A newly developed continuous zoom-focus endocytoscope

Author

Kaiyo Takubo, Kenro Kawada, Junko Aida, Keiichiro Ishibashi, Erito Mochiki, Minoru Fukuchi, Jun Sobajima, Toru Ishiguro, Morihiro Higashi, Tatsuyuki Kawano, Youichi Kumagai, and Hideyuki Ishida

Subjects
Adenoma, Male, Pathology, medicine.medical_specialty, Focus (geometry), Esophageal Neoplasms, Magnification, Esophageal squamous cell carcinoma, Endoscopy, Gastrointestinal, 03 medical and health sciences, Duodenal Adenoma, 0302 clinical medicine, Duodenal Neoplasms, Stomach Neoplasms, medicine, Carcinoma, Humans, Intestinal Mucosa, medicine.diagnostic_test, business.industry, Gastroenterology, Cancer, Reproducibility of Results, Equipment Design, Middle Aged, medicine.disease, Endoscopy, Endoscopes, Gastrointestinal, 030220 oncology & carcinogenesis, Nuclear Microscopy, Cancer cell, Carcinoma, Squamous Cell, 030211 gastroenterology & hepatology, Female, Esophageal Squamous Cell Carcinoma, business
Abstract

Background and study aims We report the features of a newly developed endocytoscopy system (ECS), the GIF-Y0074. Patients and methods The GIF-Y0074 offers high-definition resolution with a consecutive increase of magnification to × 500. Using ECS, we observed 32 cases of esophageal squamous cell carcinoma (ESCC), 11 cases of gastric cancer, and five cases of duodenal adenoma. Results The images of cells obtained using the GIF-Y0074 at maximum magnification were brighter and clearer than those obtained with previous ECS systems. For diagnosis of ESCC, clearer visualization of the nucleus made nuclear abnormality easier to recognize. Cancer cells were visualized in 10/11 cases of gastric cancer, but removal of mucus still remained a problem. Duodenal adenomas were found to have atypical cells with villi and tubules at the mucosal surface, thus assisting their histological diagnosis in vivo. Conclusion The GIF-Y0074 is an excellent ECS in terms of ease of use, satisfactory resolution, and magnification power, and therefore achieves a level of utility that makes its commercial release justifiable. This ECS heralds a new era of endoscopic and histological diagnosis.

Published
2016

2. Intraoropharyngeal U-turn method using transnasal esophagogastroduodenoscopy

Author

Takuya Okada, Seiji Kishimoto, Kenro Kawada, Taro Sugimoto, and Tatsuyuki Kawano

Subjects
Endoscopes, medicine.medical_specialty, medicine.diagnostic_test, Esophagogastroduodenoscopy, business.industry, General surgery, Gastroenterology, MEDLINE, Oropharynx, Video-Audio Media, Nose, Endoscopy, Gastrointestinal, Surgery, Endoscopy, Tongue Neoplasms, Medical illustration, Medical Illustration, medicine, Carcinoma, Squamous Cell, Humans, business
Published
2014

3. A newly developed continuous zoom-focus endocytoscope.

Author

Youichi Kumagai, KaiyoTakubo, Kenro Kawada, Morihiro Higashi, Toru Ishiguro, Jun Sobajima, Minoru Fukuchi, Kei-ichiro Ishibashi, Erito Mochiki, Junko Aida, Tatsuyuki Kawano, Hideyuki Ishida, Kumagai, Youichi, Takubo, Kaiyo, Kawada, Kenro, Higashi, Morihiro, Ishiguro, Toru, Sobajima, Jun, Fukuchi, Minoru, and Ishibashi, Kei-Ichiro

Subjects
ENDOSCOPY, ADENOMA, SQUAMOUS cell carcinoma, MICROSCOPY equipment, GASTROSCOPY, ESOPHAGEAL tumors, INTESTINAL mucosa, MICROSCOPY, RESEARCH evaluation, STOMACH tumors, DUODENAL tumors, PRODUCT design, ENDOSCOPIC gastrointestinal surgery, EQUIPMENT & supplies
Abstract

Background and study aims We report the features of a newly developed endocytoscopy system (ECS), the GIF-Y0074. Patients and methods The GIF-Y0074 offers high-definition resolution with a consecutive increase of magnification to × 500. Using ECS, we observed 32 cases of esophageal squamous cell carcinoma (ESCC), 11 cases of gastric cancer, and five cases of duodenal adenoma. Results The images of cells obtained using the GIF-Y0074 at maximum magnification were brighter and clearer than those obtained with previous ECS systems. For diagnosis of ESCC, clearer visualization of the nucleus made nuclear abnormality easier to recognize. Cancer cells were visualized in 10/11 cases of gastric cancer, but removal of mucus still remained a problem. Duodenal adenomas were found to have atypical cells with villi and tubules at the mucosal surface, thus assisting their histological diagnosis in vivo. Conclusion The GIF-Y0074 is an excellent ECS in terms of ease of use, satisfactory resolution, and magnification power, and therefore achieves a level of utility that makes its commercial release justifiable. This ECS heralds a new era of endoscopic and histological diagnosis. [ABSTRACT FROM AUTHOR]

Published
2017
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