Evaluation of the combined use of narrow band imaging and high-speed imaging to discriminate laryngeal lesions

2017 ◽  
Vol 49 (6) ◽  
pp. 609-618 ◽  
Author(s):  
Veronika Volgger ◽  
Axelle Felicio ◽  
Jörg Lohscheller ◽  
Anna S. Englhard ◽  
Hanan Al-Muzaini ◽  
...  
Keyword(s):  
High Speed ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
High Speed Imaging ◽  
Combined Use ◽  
Laryngeal Lesions

Oral, Pharyngeal and Laryngeal Lesions in Mucous Membrane Pemphigoid and Usefulness of Narrow Band Imaging

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Ohki Masafumi ◽  
Kikuchi Shigeru ◽  
Ohata Atsushi ◽  
Sugiki Tsukasa ◽  
Kitano Yuka ◽  
...  
Keyword(s):  
Mucous Membrane ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Mucous Membrane Pemphigoid ◽  
Laryngeal Lesions

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

scholarly journals Manual versus Automatic Classification of Laryngeal Lesions based on Vascular Patterns in CE+NBI Images

2020 ◽  
Vol 6 (3) ◽  
pp. 70-73
Author(s):  
Nazila Esmaeili ◽  
Alfredo Illanes ◽  
Axel Boese ◽  
Nikolaos Davaris ◽  
Christoph Arens ◽  
...  
Keyword(s):  
Vocal Fold ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Automatic Classification ◽  
Vascular Pattern ◽  
Objective Interpretation ◽  
Laryngeal Lesions ◽  
Malignant Lesions ◽  
Manual Classification

AbstractLongitudinal and perpendicular changes in the blood vessels of the vocal fold have been related to the advancement from benign to malignant laryngeal cancer stages. The combination of Contact Endoscopy (CE) and Narrow Band Imaging (NBI) provides intraoperative realtime visualization of vascular pattern in Larynx. The evaluation of these vascular patterns in CE+NBI images is a subjective process leading to differentiation difficulty and subjectivity between benign and malignant lesions. The main objective of this work is to compare multi-observer classification versus automatic classification of laryngeal lesions. Six clinicians visually classified CE+NBI images into benign and malignant lesions. For the automatic classification of CE+NBI images, we used an algorithm based on characterizing the level of the vessel’s disorder. The results of the manual classification showed that there is no objective interpretation, leading to difficulties to visually distinguish between benign and malignant lesions. The results of the automatic classification of CE+NBI images on the other hand showed the capability of the algorithm to solve these issues. Based on the observed results we believe that, the automatic approach could be a valuable tool to assist clinicians to classifying laryngeal lesions.

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.

Endoscopic diagnosis of laryngeal cancer and precancerous lesions by narrow band imaging

2010 ◽  
Vol 125 (3) ◽  
pp. 288-296 ◽  
Author(s):  
X-G Ni ◽  
S He ◽  
Z-G Xu ◽  
L Gao ◽  
N Lu ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Laryngeal Cancer ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Precancerous Lesions ◽  
Type I ◽  
Severe Dysplasia ◽  
Laryngeal Lesions ◽  
Type V

AbstractObjective:To investigate the characteristics of the laryngeal mucosal microvascular network in suspected laryngeal cancer patients, using narrow band imaging, and to evaluate the value of narrow band imaging endoscopy in the early diagnosis of laryngeal precancerous and cancerous lesions.Patients and methods:Eighty-five consecutive patients with suspected precancerous or cancerous laryngeal lesions were enrolled in the study. Endoscopic narrow band imaging findings were classified into five types (I to V) according to the features of the mucosal intraepithelial papillary capillary loops assessed.Results:A total of 104 lesions (45 malignancies and 59 nonmalignancies) was detected under white light and narrow band imaging modes. The sensitivity and specificity of narrow band imaging in detecting malignant lesions were 88.9 and 93.2 per cent, respectively. The intraepithelial papillary capillary loop classification, as determined by narrow band imaging, was closely associated with the laryngeal lesions' histological findings. Type I to IV lesions were considered nonmalignant and type V lesions malignant. For type Va lesions, the sensitivity and specificity of narrow band imaging in detecting severe dysplasia or carcinoma in situ were 100 and 79.5 per cent, respectively. In patients with type Vb and Vc lesions, the sensitivity and specificity of narrow band imaging in detecting invasive carcinoma were 83.8 and 100 per cent, respectively.Conclusion:Narrow band imaging is a promising approach enabling in vivo differentiation of nonmalignant from malignant laryngeal lesions by evaluating the morphology of mucosal capillaries. These results suggest endoscopic narrow band imaging may be useful in the early detection of laryngeal cancer and precancerous lesions.

scholarly journals Diagnostic Value and Pathological Correlation of Narrow Band Imaging Classification in Laryngeal Lesions

2020 ◽  
pp. 014556132092532 ◽  
Author(s):  
Chuanyao Lin ◽  
Sisi Zhang ◽  
Ling Lu ◽  
Maohua Wang ◽  
Xiaoyun Qian
Keyword(s):  
Predictive Value ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Diagnostic Value ◽  
Pathological Correlation ◽  
Laryngeal Lesions ◽  
Loop Pattern ◽  
Malignant Lesions ◽  
High Consistency ◽  
Sensitivity Specificity

Objectives: To explore the diagnostic value and pathological correlation of narrow band imaging (NBI) classification in laryngeal lesions. Methods: A total of 112 patients (123 lesions) with laryngeal lesions from July 2018 to May 2019 were selected in this study. All patients were examined by NBI and white light imaging endoscopy. The NBI endoscopy was applied to classify the observed lesion sites according to intraepithelial papillary capillary loop pattern. The gold standard of diagnosis was pathological results. To evaluate the consistency of NBI classification and pathological results. Results: The sensitivity, specificity, positive predictive value, and negative predictive value of the diagnosis for benign, precancerous, and malignant lesions under the NBI endoscopy were 90.91%, 81.19%, 74.07%, 85.42%; 41.67%, 92.93%, 58.82%, 86.79%; and 93.51%, 65.22%, 91.14%, 68.18%, respectively. There was a high consistency between NBI classification and pathological results (κ = 0.679, P < .001). Conclusions: The NBI classification can improve the accuracy of the diagnosis of laryngeal lesions. It is important for early diagnosis and treatment of vocal cord leukoplakia and laryngeal cancer.

Combined use of a magnifying endoscope with a narrow band imaging system and a multibending endoscope for en bloc EMR of early stage gastric cancer

2004 ◽  
Vol 60 (1) ◽  
pp. 79-84 ◽  
Author(s):  
Kazuki Sumiyama ◽  
Mitsuru Kaise ◽  
Takashi Nakayoshi ◽  
Masayuki Kato ◽  
Takahiro Mashiko ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Imaging System ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Early Stage ◽  
En Bloc ◽  
Combined Use ◽  
Magnifying Endoscope

Role of narrow band imaging in the diagnosis of laryngeal lesions: Pilot study from India

2018 ◽  
Vol 55 (3) ◽  
pp. 242 ◽  
Author(s):  
Kapil Sikka ◽  
Pirabu Sakthivel ◽  
Alok Thakar ◽  
ChiromA Singh ◽  
SureshC Sharma ◽  
...  
Keyword(s):  
Pilot Study ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Laryngeal Lesions
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