Diagnosis of Early Gastric Cancer: Endoscopic Diagnosis and Classification: VS Classification System for the Diagnosis of Early Gastric Cancer by Magnifying Endoscopy

2020 ◽  
pp. 43-55
Author(s):  
Kenshi Yao ◽  
Akinori Iwashita
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Classification System ◽  
Magnifying Endoscopy ◽  
Endoscopic Diagnosis ◽  
Diagnosis And Classification ◽  
Vs Classification

scholarly journals Clinical Usefulness of the VS Classification System Using Magnifying Endoscopy with Blue Laser Imaging for Early Gastric Cancer

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Yoshikazu Yoshifuku ◽  
Yoji Sanomura ◽  
Shiro Oka ◽  
Kazutaka Kuroki ◽  
Mio Kurihara ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Classification System ◽  
Magnifying Endoscopy ◽  
Blue Laser ◽  
Laser Imaging ◽  
Blue Laser Imaging ◽  
Vs Classification ◽  
H Pylori ◽  
Experienced Endoscopists

Background. Blue laser imaging (BLI) enables the acquisition of more information from tumors’ surfaces compared with white light imaging. Few reports confirm the validity of magnifying endoscopy (ME) with BLI (ME-BLI) for early gastric cancer (EGC). We aimed to assess the detailed endoscopic findings from EGCs using ME-BLI. Methods. We enrolled 386 consecutive patients with 417 EGCs that were diagnosed using ME-BLI and resected by endoscopic submucosal dissection. Using the VS classification system, three highly experienced endoscopists (HEEs) and three less experienced endoscopists (LEEs) evaluated the demarcation line (DL), microsurface pattern (MSP), and microvascular pattern (MVP) within the endoscopic images of EGCs obtained using ME-BLI, assigning high-confidence (HC) or low-confidence (LC) levels. We investigated the clinicopathological features associated with each confidence level. Results. The HEEs’ evaluations determined the presence of DL in 99%, irregular MSP in 96%, and irregular MVP in 96%, and the LEEs’ evaluations determined the presence of DL in 98%, irregular MSP in 95%, and irregular MVP in 95% of the EGCs. When DL was present, HC levels in the Helicobacter pylori- (H. pylori-) eradicated group and noneradicated group were evident in 65% and 89%, a difference that was significant (p<0.001). Conclusions. In the diagnosis of EGC with ME-BLI, the VS classification system with ME-NBI can be applied, but identifying the DL after H. pylori was difficult.

scholarly journals Fundamentals, Diagnostic Capabilities and Perspective of Narrow Band Imaging for Early Gastric Cancer

2021 ◽  
Vol 10 (13) ◽  
pp. 2918
Author(s):  
Hiroki Kurumi ◽  
Kouichi Nonaka ◽  
Yuichiro Ikebuchi ◽  
Akira Yoshida ◽  
Koichiro Kawaguchi ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Diagnostic Algorithm ◽  
Daily Practice ◽  
Magnifying Endoscopy ◽  
Current Status ◽  
Vs Classification ◽  
Diagnostic Capabilities

The development of image-enhanced endoscopy has dramatically improved the qualitative and quantitative diagnosis of gastrointestinal tumors. In particular, narrow band imaging (NBI) has been widely accepted by endoscopists around the world in their daily practice. In 2009, Yao et al. proposed vessel plus surface (VS) classification, a diagnostic algorithm for early gastric cancer using magnifying endoscopy with NBI (ME-NBI), and in 2016, Muto et al. proposed a magnifying endoscopy simple diagnostic algorithm for early gastric cancer (MESDA-G) based on VS classification. In addition, the usefulness of ME-NBI in the differential diagnosis of gastric cancer from gastritis, diagnosis of lesion extent, inference of histopathological type, and diagnosis of depth has also been investigated. In this paper, we narrative review the basic principles, current status, and future prospects of NBI.

Endoscopic submucosal dissection by using Clutch cutter and IT knife 2 for early gastric cancer with severe submucosal fibrosis: a case report

MedPharmRes ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 17-21
Author(s):  
Nhan Le ◽  
Phuong Vien ◽  
Nghia Le
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Endoscopic Submucosal Dissection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Magnifying Endoscopy ◽  
Gastrointestinal Cancers ◽  
Pathological Result ◽  
Well Differentiated ◽  
Submucosal Fibrosis

Introduction: Gastric cancer is one of the highly malignant gastrointestinal cancers and the third leading cause of cancer death. In the last decade, early gastric cancer (EGC) has been reported by using narrow-band imaging (NBI) magnifying endoscopy. Advances in endoscopic techniques, such as endoscopic submucosal dissection (ESD), have enabled the en bloc resection of these EGC. Although ESD is performed for early gastric cancer, there are still many difficult problems in technique of this procedure. The difficulty of gastric ESD depends on the size and location of a tumor, presence of severe submucosal fibrosis, presence of ulceration... We report a case of our successful ESD by using Clutch cutter and IT knife 2 in treatment of EGC with severe submucosal fibrosis. Case presentation: A 62-year-old man felt an epigastric discomfort two months ago. The narrow-band imaging (NBI) magnifying endoscopy revealed a suspected early gastric cancer type 0 - IIa + IIc (Japanese classification of early gastrointestinal cancers) at the incisura angularis, the size of this lesion was 15 mm in diameter, and pathological result of endoscopic biopsy was a well-differentiated adenocarcinoma. ESD was performed and we found there was severe submucosal fibrosis which was dissected safer and faster by using Clutch cutter and IT knife 2. There were no complications such as severe bleeding and perforation. The size of resected specimen was 60 x 35 mm and the time of procedure was 150 minutes. After ESD, the pathological result was a well differentiated adenocarcinoma, pT1a, UL(-), LY(-), V(-), no cancer cell in vertical and horizontal margins. The healing time of ESD-induced ulcer was 5 weeks without local recurrence. Conclusion: Through this case, we aim to emphasize the importance of using Clutch cutter and IT knife 2 as a modified technique which makes ESD a safe procedure in treatment of EGC with severe submucosal fibrosis.

Comparison of Four Methods Using Magnifying Endoscopy for Recognition of the Demarcation in Early Gastric Cancer

2008 ◽  
Vol 67 (5) ◽  
pp. AB134
Author(s):  
Kyosuke Tanaka ◽  
Hideki Toyoda ◽  
Yasuhiko Hamada ◽  
Masaki Katsurahara ◽  
Hiroyuki Inoue ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Magnifying Endoscopy

Identifying dilated vessels by magnifying endoscopy with narrow-band imaging : prediction of minute submucosal invasion in two cases of early gastric cancer

2021 ◽  
Vol 98 (1) ◽  
pp. 85-87
Author(s):  
Kento Inada ◽  
Hiroyuki Nakanishi ◽  
Sakura Kirino ◽  
Koji Yamashita ◽  
Leona Osawa ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Magnifying Endoscopy ◽  
Submucosal Invasion
Sign in / Sign up

Export Citation Format

Share Document