scholarly journals The Impact of Narrow-band Imaging on the Pre- and Intra- operative Assessments of Neoplastic and Preneoplastic Laryngeal Lesions. A Systematic Review

2020 ◽  
Author(s):  
Carmelo Saraniti ◽  
Enzo Chianetta ◽  
Giuseppe Greco ◽  
Norhafiza Mat Lazim ◽  
Barbara Verro
Keyword(s):  
White Light ◽  
Diagnostic Tool ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Resection Margins ◽  
Predictive Values ◽  
White Light Endoscopy ◽  
Laryngeal Lesions ◽  
Sensitivity Specificity ◽  
The Impact

Introduction Narrow-band imaging is an endoscopic diagnostic tool that, focusing on superficial vascular changes, is useful to detect suspicious laryngeal lesions, enabling their complete excision with safe and tailored resection margins. Objectives To analyze the applications and benefits of narrow-band imaging in detecting premalignant and malignant laryngeal lesions through a comparison with white-light endoscopy. Data Synthesis A literature search was performed in the PubMed, Scopus and Web of Science databases using strict keywords. Then, two authors independently analyzed the articles, read the titles and abstracts, and read completely only the relevant studies according to certain eligibility criteria. In total, 14 articles have been included in the present review; the sensitivity, specificity, positive and negative predictive values, and accuracy of pre- and/or intraoperative narrow-band imaging were analyzed. The analysis showed that narrow-band imaging is better than white-light endoscopy in terms of sensitivity, specificity, positive and negative predictive values, and accuracy regarding the ability to identify cancer and/or precancerous laryngeal lesions. Moreover, the intraoperative performance of narrow-band imaging resulted more effective than the in-office performance. Conclusion Narrow-band imaging is an effective diagnostic tool to detect premalignant and malignant laryngeal lesions and to define proper resection margins. Moreover, narrow-band imaging is useful in cases of leukoplakia that may cover a possible malignant lesion and that cannot be easily assessed with white-light endoscopy. Finally, a shared, simple and practical classification of laryngeal lesions, such as that of the European Laryngological Society, is required to identify a shared lesion management strategy. Key Points

Clinical experience of narrow band imaging (NBI) usage in diagnosis of laryngeal lesions

2019 ◽  
Vol 73 (6) ◽  
pp. 18-23 ◽  
Author(s):  
Barbara Popek ◽  
Katarzyna Bojanowska-Poźniak ◽  
Bartłomiej Tomasik ◽  
Wojciech Fendler ◽  
Joanna Jeruzal-Świątecka ◽  
...  
Keyword(s):  
White Light ◽  
Narrow Band ◽  
Histopathological Examination ◽  
Narrow Band Imaging ◽  
Daily Practice ◽  
Diagnostic Value ◽  
Severe Dysplasia ◽  
White Light Endoscopy ◽  
Laryngeal Lesions ◽  
Sensitivity Specificity

Introduction: One of the most recent methods used in imaging of the larynx is narrow band imaging (NBI). NBI enables us to detect specific patterns of pathological angiogenesis suggestive of premalignant or neoplastic lesions. The aim of the study was to compare imaging of laryngeal lesions in white light endoscopy (WLE) and NBI in relation to histopathological examination. Material and methods: 333 patients with laryngeal lesions underwent endoscopic evaluation in WLE and NBI. Sensitivity, specificity, positive and negative predictive value (PPV, NPV) for WLE and NBI were calculated. The diagnostic value for WLE and NBI was evaluated for two assumptions (positive result is:1. severe dysplasia and cancer 2. only cancer) Results: Sensitivity, specificity, PPV, NPV of first assumption were respectively for white light compared to NBI: 95.4% vs 98.5%; 84.2% vs 98.5%; 79.6% vs 97.7% and 96.6% vs 99.0%. The values of second assumption were: 97.4% vs 100%; 79.3% vs 93.5%; 72.6% vs. 89.4% and 98.2% vs. 100.0%. Higher sensitivity was observed for the second assumption, while higher specifity was recorded for the first assumption. Specificity was significantly higher for NBI than for WLE (p<0.001). Conclusions: NBI enables us to detect and differentiate laryngeal lesions, which are invisible in WLE. Endoscopic examination, especially in NBI-mode, is non-invasive, repeatable and remains a useful tool in the daily practice and diagnosis of patients with pathological lesions in the larynx.

scholarly journals Multicenter randomised controlled trial comparing the high definition white light endoscopy and the bright narrow band imaging for colon polyps

2017 ◽  
Vol 9 (6) ◽  
pp. 273 ◽  
Author(s):  
Rajvinder Singh ◽  
Kuan Loong Cheong ◽  
Leonardo Zorron Cheng Tao Pu ◽  
Dileep Mangira ◽  
Doreen Siew Ching Koay ◽  
...  
Keyword(s):  
Randomised Controlled Trial ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Controlled Trial ◽  
Colon Polyps ◽  
High Definition ◽  
White Light Endoscopy ◽  
Randomised Controlled

scholarly journals Endocytoscopy with NBI has the potential to correctly diagnose diminutive colorectal polyps that are difficult to diagnose using conventional NBI

2020 ◽  
Vol 08 (03) ◽  
pp. E360-E367
Author(s):  
Shinichi Kataoka ◽  
Shin-ei Kudo ◽  
Masashi Misawa ◽  
Hiroki Nakamura ◽  
Kenichi Takeda ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Blood Vessel ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps ◽  
Hyperplastic Polyps ◽  
Predictive Values ◽  
Neoplastic Lesions ◽  
Sensitivity Specificity ◽  
Time Diagnosis

Abstract Background and study aims Real-time diagnosis of colorectal polyps is needed to prevent unnecessary resection of benign polyps. The vessels in hyperplastic polyps sometimes mimic the characteristic meshed capillary network of neoplastic lesions on non-magnified narrow-band imaging (NBI). Endocytoscopy in conjunction with NBI (EC-NBI) enables more detailed vessel observation. The current study evaluated whether EC-NBI can accurately diagnose small colorectal lesions with visible vessels on non-magnified NBI. Patients and methods This retrospective study was conducted from January to December 2016. During colonoscopy, lesion images were obtained using NBI and EC-NBI. On EC-NBI, lesions were classified as having “clear,” “unclear,” or “invisible” blood vessel margins. All specimens were resected and pathologically examined, and the association between vessel margin findings and pathological diagnosis was assessed. The lesion surface to vessel depth was measured in clear, unclear, and invisible lesions. Results Among 114 adenomas, 108 were clear, while six were unclear. Among 36 hyperplastic polyps, eight were clear, while 28 were unclear. A micro-network (MN) pattern was seen in 106 of 114 adenomas, and four of 36 hyperplastic polyps. The sensitivity, specificity, correct diagnostic rate, and positive and negative predictive values of clear blood vessel margins or a MN pattern as an adenoma index were 98.2 %, 69.4 %, 91.3 %, 91.1 %, and 92.6 %, respectively. EC-NBI correctly diagnosed 69.4 % (25/36) of hyperplastic polyps. The lesion surface–blood vessel distance was greater in unclear versus clear lesions (P < 0.001), and invisible versus unclear lesions (P < 0.001). Conclusions EC-NBI may effectively differentiate hyperplastic polyps with visible vessels from adenomas. Blood vessel depth affects visibility.

scholarly journals Comparative study of magnifying narrow-band imaging and conventional white light endoscopy in the diagnosis of Helicobacter pylori status after eradication therapy

Medicine ◽  
2019 ◽  
Vol 98 (46) ◽  
pp. e17697 ◽  
Author(s):  
Tomomitsu Tahara ◽  
Noriyuki Horiguchi ◽  
Hyuga Yamada ◽  
Dai Yoshida ◽  
Tsuyoshi Terada ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Comparative Study ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Eradication Therapy ◽  
White Light Endoscopy
Sign in / Sign up

Export Citation Format

Share Document