scholarly journals Detection of anal dysplasia is enhanced by narrow band imaging and acetic acid

2016 ◽  
Vol 18 (1) ◽  
Author(s):  
M. D. Inkster ◽  
H. O. Wiland ◽  
J. S. Wu
Keyword(s):  
Acetic Acid ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Anal Dysplasia

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 Magnifying narrow-band imaging with acetic acid to diagnose early colorectal cancer

2014 ◽  
Vol 20 (43) ◽  
pp. 16306 ◽  
Author(s):  
Norihiro Goto ◽  
Toshihiro Kusaka ◽  
Yumi Tomita ◽  
Hideyuki Tanaka ◽  
Yoshio Itokawa ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Acetic Acid ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Early Colorectal Cancer

MAGNIFICATION ENDOSCOPIC VIEW OF AN EARLY GASTRIC CANCER USING ACETIC ACID AND NARROW-BAND IMAGING SYSTEM

2006 ◽  
Vol 18 (s1) ◽  
pp. S41-S43 ◽  
Author(s):  
Hideki Toyoda ◽  
Kyosuke Tanaka ◽  
Yasuhiko Hamada ◽  
Ryo Kosaka ◽  
Ichiro Imoto
Keyword(s):  
Gastric Cancer ◽  
Acetic Acid ◽  
Early Gastric Cancer ◽  
Imaging System ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Endoscopic View
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