scholarly journals Brief Education on Microvasculature and Pit Pattern for Trainees Significantly Improves Estimation of the Invasion Depth of Colorectal Tumors

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Joon Sung Kim ◽  
Bo-In Lee ◽  
Hwang Choi ◽  
Bong Koo Kang ◽  
Jong In Kim ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Pattern Identification ◽  
Submucosal Invasion ◽  
Colorectal Tumors ◽  
Pit Pattern ◽  
Invasion Depth ◽  
White Light Endoscopy ◽  
Magnifying Chromoendoscopy

Objectives. This study was performed to evaluate the effectiveness of education for trainees on the gross findings identified by conventional white-light endoscopy (CWE), the microvascular patterns identified by magnifying narrow-band imaging endoscopy (MNE), and the pit patterns identified by magnifying chromoendoscopy (MCE) in estimation of the invasion depth of colorectal tumors.Methods. A total of 420 endoscopic images of 35 colorectal tumors were used. Five trainees estimated the invasion depth of the tumors by reviewing the CWE images before education. Afterwards, the trainees estimated the invasion depth of the same tumors after brief education on CWE, MNE and MCE images, respectively.Results. The initial diagnostic accuracy for deep submucosal invasion before education and after education on CWE, MNE, and MCE findings was 54.3%, 55.4%, 67.4%, and 76.6%, respectively. The diagnostic accuracy increased significantly after MNE education (P=0.028). The specificity for deep submucosal invasion before education and after education on CWE, MNE, and MCE findings was 47.9%, 45.7%, 65.0%, and 80.7%, respectively. The specificity increased significantly after MNE (P=0.002) and MCE (P=0.005) education.Conclusion. Brief education on microvascular pattern identification by MNE and pit pattern identification by MCE significantly improves trainees’ estimations of the invasion depth of colorectal tumors.

scholarly journals Relationship between Narrow-Band Imaging Magnifying Observation and Pit Pattern Diagnosis in Colorectal Tumors

Digestion ◽  
2013 ◽  
Vol 87 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Nana Hayashi ◽  
Shinji Tanaka ◽  
Hiroyuki Kanao ◽  
Shiro Oka ◽  
Shigeto Yoshida ◽  
...  
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Tumors ◽  
Pit Pattern ◽  
Pattern Diagnosis

scholarly journals Mo1723 PREDICTION OF TUMOR GRADE AND INVASION DEPTH OF COLORECTAL TUMORS THROUGH THE SCORING OF NARROW-BAND IMAGING FINDINGS

2018 ◽  
Vol 87 (6) ◽  
pp. AB497
Author(s):  
yasuhiko maeyama ◽  
Keiichi Mitsuyama ◽  
Shinichiro Yoshioka ◽  
Hiroshi Kawano ◽  
Osamu Tsuruta ◽  
...  
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Tumor Grade ◽  
Imaging Findings ◽  
Colorectal Tumors ◽  
Invasion Depth

scholarly journals Diagnostic Accuracy of Magnifying Endoscopy with Narrow Band Imaging and Its Diagnostic Value for Invasion Depth Staging in Esophageal Squamous Cell Carcinoma: A Systematic Review and Meta-Analysis

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Tingting Yu ◽  
Jin Geng ◽  
Wei Song ◽  
Zhonghua Jiang
Keyword(s):  
Squamous Cell Carcinoma ◽  
Diagnostic Accuracy ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Meta Analysis ◽  
Magnifying Endoscopy ◽  
Invasion Depth ◽  
Sensitivity Specificity

Background and Goals.This study aimed to investigate the diagnostic accuracy of magnifying endoscopy with narrow band imaging (ME-NBI) and determine its value for invasion depth staging in esophageal squamous cell carcinoma.Methods. We searched the PubMed, Embase, and Cochrane Library databases and found relevant studies published up to December 2016. Quality Assessment of Diagnostic Accuracy Studies 2 was used to evaluate the quality of the studies. We calculated sensitivity, specificity, and positive and negative likelihood values from forest plots and determined summary receiver operating characteristic (sROC) curves for ME-NBI diagnostic accuracy analysis.Results. Ten studies met our criteria and were selected for this meta-analysis. A total of 1,033 patients underwent ME-NBI, and 207 of these patients received a diagnosis of staging mucosal or submucosal invasion. The pooled sensitivity, specificity, and positive and negative likelihood values of ME-NBI for the diagnostic rate were 0.90 (95% CI, 0.71–0.97), 0.90 (95% CI, 0.80–0.95), 6.74 (95% CI, 3.52–712.89), and 0.20 (95% CI, 0.10–0.42), respectively. The area under the curve (AUC) was 0.95 for all studies.Conclusions. ME-NBI provides a high diagnostic rate in evaluating the esophagus to diagnose squamous cell carcinoma. In the differentiation for invasion depth staging, ME-NBI was demonstrated to be superior to white light endoscopy and had a similar diagnostic rate compared with HF-EUS. However, HF-EUS had high positive likelihood values for invasion depth staging, suggesting that HF-EUS is a reliable method for confirming invasion depth staging.

scholarly journals Narrow-band imaging magnification predicts the histology and invasion depth of colorectal tumors

2009 ◽  
Vol 69 (3) ◽  
pp. 631-636 ◽  
Author(s):  
Hiroyuki Kanao ◽  
Shinji Tanaka ◽  
Shiro Oka ◽  
Mayuko Hirata ◽  
Shigeto Yoshida ◽  
...  
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Tumors ◽  
Invasion Depth
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