A Pilot Study of Narrow-Band Imaging Compared to White Light Bronchoscopy for Evaluation of Normal Airways and Premalignant and Malignant Airways Disease

CHEST Journal ◽  
2007 ◽  
Vol 131 (6) ◽  
pp. 1794-1799 ◽  
Author(s):  
Brad D. Vincent ◽  
Mostafa Fraig ◽  
Gerard A. Silvestri
Keyword(s):  
Pilot Study ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging

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.

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 Evaluating Laryngopharyngeal Tumor Extension Using Narrow Band Imaging Versus Conventional White Light Imaging

2021 ◽  
Author(s):  
Manon A. Zwakenberg ◽  
Gyorgy B. Halmos ◽  
Jan Wedman ◽  
Bernard F. A. M. Laan ◽  
Boudewijn E. C. Plaat
Keyword(s):  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Tumor Extension ◽  
White Light Imaging

The Comparison of Narrow Band Imaging, White Light Laryngoscopy and Videolaryngostroboscopy in the Evaluation of Benign Vocal Fold Lesions

2021 ◽  
Author(s):  
Yetkin Zeki Yılmaz ◽  
Müge Uğurlar ◽  
Begüm Bahar Yılmaz ◽  
Züleyha Dilek Gülmez ◽  
Hasan Ahmet Özdoğan ◽  
...  
Keyword(s):  
White Light ◽  
Vocal Fold ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Benign Vocal Fold Lesions

scholarly journals P236 Evaluation of histological inflammation by a novel image enhanced endoscopy technique, dual red imaging, in patients with ulcerative colitis: Preliminary study

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S261-S261
Author(s):  
K FUJIMOTO ◽  
K Watanabe ◽  
K Hori ◽  
K Kaku ◽  
N Kinoshita ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Topical Steroid ◽  
Treatment Goal ◽  
Practical Approach ◽  
Mayo Score ◽  
White Light Imaging ◽  
Pathological Assessment

Abstract Background Endoscopic remission is the ideal treatment goal for patients with ulcerative colitis (UC) in clinical practice. However, several recent investigations tried to evaluate histological healing as a more optimal treatment goal. The assessment of histological healing, however, is usually inconvenient and time-consuming because of the requirement of a biopsy and pathological assessment. Dual red imaging (DRI; Olympus Corporation, Japan) is a novel image enhanced endoscopy technique that can visualise the inflammation, including that in the surface crypt, and vessel findings of the brownish surface or green-coloured deeper layer of the mucosa in contrast to narrow band imaging. We preliminarily evaluated the utility of DRI in the assessment of histological healing in UC as a practical approach. Methods We enrolled UC patients who provided consent from May 2018 to September 2019 in our hospital, and performed colonoscopy in the entire colon with white-light imaging and DRI, and then endoscopic pictures and biopsy samples were obtained. Central pathological assessment of histological inflammation based on the Nancy index with individual items was performed for each biopsy sample. We also assessed the clinical background, UC activity according to the Mayo score, white-light endoscopic activity according to the Mayo endoscopic subscore (MES), and DRI findings using a 5-point scale. Results We evaluated a total of 90 sets of DRI and pathological findings from 47 UC patients (20 females; median age, 42 [20–84] years; 25 with pancolitis, 17 left-sided colitis, 3 proctitis, and 2 others; median duration of disease, 83 [1–379] months; median Mayo score, 2 [0–11]). Participants were treated with 5-aminosalicylates (38 oral; 7 topical), steroid (4 systemic; 6 topical), immunomodulator (7), anti-TNF agents (5), tofacitinib (3), and tacrolimus (8). Both the MES (r = 0.70) and DRI scale (r = 0.65) correlated well with the Nancy index. Among individual pathological items with respect to inflammation, ulceration (r = 0.69), chronic inflammatory infiltrate (r = 0.66), neutrophils in the lamina propria (r = 0.65), and serrated architectural abnormalities (r = 0.60) correlated well with the Nancy index in contrast to other pathological items. DRI seemed to facilitate the visualisation of histological inflammation in deeper layers of the mucosa compared with white-light imaging or narrow-band imaging. Conclusion The novel DRI technique has potential in the evaluation of histological inflammation without the requirement of a biopsy in patients with UC as a practical approach. A further prospective multicenter study in this regard is needed.

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 Usefulness of narrow-band imaging in transurethral resection of bladder tumor: Early experience from a tertiary center in India

2019 ◽  
Vol 08 (04) ◽  
pp. 226-228
Author(s):  
Kanuj Malik ◽  
Anand Raja ◽  
Sivakumar Mahalingam ◽  
L.S Ravishankar
Keyword(s):  
White Light ◽  
Transurethral Resection ◽  
Bladder Tumor ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Urinary Bladder Cancer ◽  
Early Experience ◽  
Current Standard ◽  
Tertiary Center ◽  
Long Term Follow Up

Abstract Background: The current standard for diagnosis and treatment of urinary bladder cancer is transurethral resection of bladder tumor (TURBT) using white light guidance. Narrow band imaging (NBI) has emerged as a promising method for identifying additional bladder lesions. Various studies have been published to evaluate its sensitivity in identifying new lesions and its impact on decreasing recurrences. In this study, we evaluated our early experience using NBI in TURBTs. Aims and Objective: The aim of the study is to determine the accuracy of NBI in identifying additional malignant lesions during TURBT. Materials and Methods: We retrospectively collected data for all patients who underwent either TURBT or repeat TURBT with white light and NBI from November 2016 to July 2017 at Cancer Institute (WIA). The number of additional lesions identified using NBI was evaluated along with its correlation with the final histopathology. Results: Forty patients were analysed of which 20 underwent TURBT and 20 underwent repeat TURBT. Of these, 36 patients had complete resection of tumour. Additional lesions were detected in 6 patients (14%) by NBI of which 2 (33%) were malignant histology. The additional lesions detected were carcinoma in situ and no patient was upstaged. Conclusion: The inclusion of NBI to conventional white light TURBT increases the sensitivity for identifying additional lesions. The limitation of NBI is high false positivity and its availability. Long term follow up studies with larger subset of patients are required to evaluate its role in decreasing recurrences and justification in routine clinical practice.

Sign in / Sign up

Export Citation Format

Share Document