Blue laser imaging identifies endoscopic findings corresponding to metachronous esophageal squamous cell carcinoma

Esophagus ◽  
2021 ◽  
Author(s):  
Yuka Azuma ◽  
Osamu Dohi ◽  
Yuji Naito ◽  
Takeshi Yasuda ◽  
Takuma Yoshida ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Blue Laser ◽  
Laser Imaging ◽  
Endoscopic Findings ◽  
Blue Laser Imaging

scholarly journals Blue Laser Imaging-Bright Improves Endoscopic Recognition of Superficial Esophageal Squamous Cell Carcinoma

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Akira Tomie ◽  
Osamu Dohi ◽  
Nobuaki Yagi ◽  
Hiroaki Kitae ◽  
Atsushi Majima ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
White Light ◽  
Objective Evaluation ◽  
Blue Laser ◽  
Laser Imaging ◽  
Blue Laser Imaging ◽  
The Mean ◽  
White Light Imaging

Background/Aims. The aim of this study was to evaluate the endoscopic recognition of esophageal squamous cell carcinoma (ESCC) using four different methods (Olympus white light imaging (O-WLI), Fujifilm white light imaging (F-WLI), narrow band imaging (NBI), and blue laser imaging- (BLI-) bright).Methods.We retrospectively analyzed 25 superficial ESCCs that had been examined using the four different methods. Subjective evaluation was provided by three endoscopists as a ranking score (RS) of each image based on the ease of detection of the cancerous area. For the objective evaluation we calculated the color difference scores (CDS) between the cancerous and noncancerous areas with each of the four methods.Results. There was no difference between the mean RS of O-WLI and F-WLI. The mean RS of NBI was significantly higher than that of O-WLI and that of BLI-bright was significantly higher than that of F-WLI. Moreover, the mean RS of BLI-bright was significantly higher than that of NBI. Furthermore, in the objective evaluation, the mean CDS of BLI-bright was significantly higher than that of O-WLI, F-WLI, and NBI.Conclusion. The recognition of superficial ESCC using BLI-bright was more efficacious than the other methods tested both subjectively and objectively.

Review of early endoscopic findings in patients with local recurrence after definitive chemoradiotherapy for esophageal squamous cell carcinoma

Esophagus ◽  
2020 ◽  
Vol 17 (4) ◽  
pp. 433-439
Author(s):  
Yoichi Yamamoto ◽  
Tomohiro Kadota ◽  
Yusuke Yoda ◽  
Keisuke Hori ◽  
Ken Hatogai ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Local Recurrence ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Definitive Chemoradiotherapy ◽  
Endoscopic Findings

Diagnostic performance of magnifying blue laser imaging versus magnifying narrow-band imaging for identifying the depth of invasion of superficial esophageal squamous cell carcinoma

2020 ◽  
Author(s):  
Tomohiro Ueda ◽  
Osamu Dohi ◽  
Yuji Naito ◽  
Takuma Yoshida ◽  
Yuka Azuma ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Diagnostic Accuracy ◽  
Endoscopic Submucosal Dissection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Blue Laser ◽  
Depth Of Invasion ◽  
Laser Imaging ◽  
Blue Laser Imaging

Summary Identifying the depth of invasion (DOI) of superficial esophageal squamous cell carcinoma (SESCC) is crucial to determine the indication for endoscopic resection. This retrospective, single-center study aimed to evaluate the diagnostic efficacy of magnifying blue laser imaging (M-BLI) compared with white-light imaging (WLI) or magnifying narrow-band imaging (M-NBI) for identifying the DOI of SESCC. A total of 160 consecutive patients with SESCCs who underwent endoscopic submucosal dissection were enrolled in this study. Still images of the lesion were obtained using WLI, M-BLI and M-NBI prior to endoscopic submucosal dissection. Three endoscopists retrospectively evaluated the DOI using WLI according to non-magnifying findings and using M-BLI and M-NBI images according to the magnifying endoscopic classification of the Japan Esophageal Society. The diagnostic accuracy of each modality was compared using the chi-square test. The DOIs in 160 SESCCs evaluated pathologically were as follows: invasion to the epithelium or lamina propria mucosa in 130, invasion to the lamina muscularis mucosa or submucosa to a depth ≤ 200 μm in 18, and invasion to the submucosa to a depth > 200 μm in 12. The overall diagnostic accuracy rates of WLI, M-BLI, M-NBI, WLI with M-BLI (WLI + M-BLI), and WLI with M-NBI (WLI + M-NBI) were 86.9, 91.2, 90.6, 95.6 and 94.4%, respectively. Significant differences were found between WLI and WLI + M-BLI or WLI + M-NBI (P = 0.006 and P = 0.021, respectively). The concordance of intrapapillary capillary loops between M-BLI and M-NBI was 91.2%. The kappa coefficients for interobserver variability of the three endoscopists for M-BLI and M-NBI were 0.728/0.649/0.792 and 0.729/0.666/0.791, respectively, while those for intraobserver variability were 0.919/0.746/0.778 and 0.736/0.720/0.745, respectively. Similar to M-NBI, M-BLI was useful in predicting the DOI of SESCCs.

Wnt 1 activates TCF/LEF transcription in esophageal squamous cell carcinoma

2001 ◽  
Vol 120 (5) ◽  
pp. A45-A46
Author(s):  
T MIZUSHIMA ◽  
H NAKAGAWA ◽  
A RUSTGI
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell

Progress of Chemoradiotherapy for Resectable Esophageal Squamous Cell Carcinoma

2012 ◽  
Vol 63 (2) ◽  
pp. 195-195
Author(s):  
K. Minashi ◽  
T. Yano ◽  
T. Kojima ◽  
M. Onozawa ◽  
K. Nihei ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Resectable Esophageal
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