scholarly journals Comparative Study of Narrow-Band Imaging and i-scan for Predicting the Histology of Intermediate-to-Large Colorectal Polyps: A Prospective, Randomized Pilot Study

2021 ◽  
Author(s):  
Joon Seop Lee ◽  
Seong Woo Jeon ◽  
Yong Hwan Kwon
Keyword(s):  
Pilot Study ◽  
Comparative Study ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps ◽  
Large Colorectal Polyps

scholarly journals Endoscopic Ex Vivo Evaluation of Bile Concentrations by Narrow Band Imaging: A Pilot Study

2015 ◽  
Vol 2015 ◽  
pp. 1-3
Author(s):  
Roberta Maselli ◽  
Haruhiro Inoue ◽  
Haruo Ikeda ◽  
Manabu Onimaru ◽  
Akira Yoshida ◽  
...  
Keyword(s):  
Pilot Study ◽  
White Light ◽  
Potential Role ◽  
Narrow Band ◽  
Ex Vivo ◽  
Narrow Band Imaging ◽  
Initial Study ◽  
Bile Concentration ◽  
Duodenogastroesophageal Reflux

Background. Bile juice plays a major role in duodenogastroesophageal reflux (DGERD). Several devices to directly measure the bile concentration have been proposed. We aimed to ex-vivo evaluate the bile concentration by narrow band imaging (NBI).Method. From six surgical cholecystectomies, the content of the gallbladders was aspirated and the total biliary acid (TBA) concentration was evaluated. 2 mL was employed for serial twofold dilutions. Each dilution was scoped. Images on white light (WL) and NBI were captured and grouped accordingly to NBI-appearance and TBA-concentration.Results. Nondiluted bile had a TBA-concentration of 61965 ± 32989 μmol/L. Final dilution (1 : 4096) had 1.16 μmol/L. NBI and correspondent WL images were grouped into seven groups, and an NBI/Bile scale was created.Conclusion. The scale showed that not only NBI scale but also white light scale could be useful to predict the bile concentration. This initial study shows that NBI has a potential role in the detection of DGERD and further investigation is warranted to distinguish the presence and the concentration of bile, especially at very low TBA concentrations.

Magnifying Blue Laser Imaging versus Magnifying Narrow-Band Imaging for the Diagnosis of Early Gastric Cancer: A Prospective, Multicenter, Comparative Study

Digestion ◽  
2017 ◽  
Vol 96 (3) ◽  
pp. 127-134 ◽  
Author(s):  
Osamu Dohi ◽  
Nobuaki Yagi ◽  
Shigeto Yoshida ◽  
Shoko Ono ◽  
Yoji Sanomura ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Comparative Study ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Blue Laser ◽  
Laser Imaging ◽  
Blue Laser Imaging

scholarly journals Prospective Comparative Study of Laparoscopic Narrow Band Imaging (NBI) Versus Standard Imaging in Gynecologic Oncology

2018 ◽  
Vol 25 (4) ◽  
pp. 984-990 ◽  
Author(s):  
Alessia Aloisi ◽  
Yukio Sonoda ◽  
Ginger J. Gardner ◽  
Kay J. Park ◽  
Sarah L. Elliott ◽  
...  
Keyword(s):  
Comparative Study ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Gynecologic Oncology ◽  
Prospective Comparative 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 Differential Diagnosis of Colorectal Polyps with Narrow Band Imaging Colonoscopy without Magnification

2014 ◽  
Vol 63 (5) ◽  
pp. 276 ◽  
Author(s):  
Bong Jin Kim ◽  
Moo In Park ◽  
Seun Ja Park ◽  
Won Moon ◽  
Eun Taek Park ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps
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