scholarly journals A Randomized Controlled Clinical Study Comparing the Diagnostic Accuracy of the Histologic Prediction for Colorectal Polyps Depending on the Use of Either Magnified or Nonmagnified Narrow Band Imaging

2015 ◽  
Vol 48 (6) ◽  
pp. 528-533 ◽  
Author(s):  
Jin Joo Kim ◽  
Kyoung Sup Hong ◽  
Joo Sung Kim ◽  
Hyun Chae Jung
Keyword(s):  
Clinical Study ◽  
Diagnostic Accuracy ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps ◽  
Randomized Controlled ◽  
Controlled Clinical Study

scholarly journals Magnification endoscopy in combination with acetic acid enhancement and narrow-band imaging for the accurate diagnosis of colonic neoplasms

2020 ◽  
Vol 08 (04) ◽  
pp. E488-E497
Author(s):  
Kotaro Shibagaki ◽  
Norihisa Ishimura ◽  
Takafumi Yuki ◽  
Hideaki Taniguchi ◽  
Masahito Aimi ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Diagnostic Accuracy ◽  
Endoscopic Resection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colonic Neoplasms ◽  
High Accuracy ◽  
Colorectal Polyps ◽  
Histologic Diagnosis ◽  
Magnification Endoscopy

Abstract Background and study aims Magnification endoscopy with narrow-band imaging (NBIME) and NBIME with acetic acid enhancement (A-NBIME) enable visualization of the vascular and microstructural patterns of colorectal polyp. We compared the diagnostic accuracy and reproducibility of white light endoscopy (WLE), NBIME, and A-NBIME for predictive histologic diagnosis. Patients and methods Consecutive colorectal polyps (N = 628; 38 hyperplasias, 488 adenomas, 72 M-SM1 cancers, and 30 SM2 cancers) were photographed with WLE, NBIME, and A-NBIME. Endoscopic images were independently reviewed by three experts, according to the traditional criteria for WLE, the Japan NBI Expert Team classification for NBIME, and pit pattern classification for A-NBIME to compare diagnostic accuracy and interobserver diagnostic agreement among modalities. Results The specificity (95 % confidence interval) of hyperplasia and SM2 cancer with WLE were 98.2 % (96.8 %–99.1%) and 99.4 % (98.5 %–99.9 %), respectively, showing high accuracy for endoscopic resection without magnifying observation. Diagnostic accuracy of WLE, NBIME, and A-NBIME was 80.8 % (77.4 %–83.8 %), 79.3 % (75.9 %–82.4 %), and 86.1 % (83.2 %–88.7 %), respectively, showing the highest accuracy for A-NBIME among modalities (P < .05). NBIME showed a lower PPV for M-SM1 cancer (P < .05), as with WLE (P = .08) compared to A-NBIME. Fleiss’s kappa values for WLE, NBIME, and A-NBIME diagnosis were 0.43 (0.39 – 0.46), 0.52 (0.49 – 0.56) and 0.65 (0.62 – 0.69), respectively, showing insufficient reproducibility of WLE and superiority of A-NBIME among modalities. Conclusion WLE showed high accuracy for endoscopic resection of colorectal polyps in expert diagnosis. NBIME demonstrated a higher diagnostic reproducibility than WLE. A-NBIME showed possible superiority among modalities in both diagnostic accuracy and reproducibility.

scholarly journals Su1065 NEAR-FOCUS VERSUS NORMAL-FOCUS NARROW BAND IMAGING COLONOSCOPY IN DIAGNOSIS OF COLORECTAL POLYPS BASED ON COMBINED NICE AND WASP CLASSIFICATION: A RANDOMIZED CONTROLLED TRIAL

2020 ◽  
Vol 91 (6) ◽  
pp. AB288-AB289
Author(s):  
Natcha Cheewasereechon ◽  
Nisa Netinatsunton ◽  
Tanawat Pattarapuntakul ◽  
Kanet Kanjanapradit ◽  
Jaksin Sottisuporn ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Controlled Trial ◽  
Colorectal Polyps ◽  
Randomized Controlled

775 Randomized Controlled Trial of Self-Directed vs. In-Classroom Education of Narrow Band Imaging (NBI) in Diagnosing Colorectal Polyps Using the NICE Criteria

2015 ◽  
Vol 148 (4) ◽  
pp. S-150-S-151
Author(s):  
James E. Allen ◽  
Prashanth Vennalaganti ◽  
Neil Gupta ◽  
Benjamin Hornung ◽  
Benjamin R. Alsop ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Controlled Trial ◽  
Colorectal Polyps ◽  
Randomized Controlled ◽  
Classroom Education

An International Study on the Diagnostic Accuracy of the Japan Narrow-Band Imaging Expert Team Classification for Colorectal Polyps Observed with Blue Laser Imaging

Digestion ◽  
2019 ◽  
Vol 101 (3) ◽  
pp. 339-346
Author(s):  
Hiroto Suzuki ◽  
Takeshi Yamamura ◽  
Masanao Nakamura ◽  
Chen-Ming Hsu ◽  
Ming-Yao Su ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
International Study ◽  
Colorectal Polyps ◽  
Blue Laser ◽  
Laser Imaging ◽  
Blue Laser Imaging ◽  
Expert Team
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