Narrow Band Imaging (NBI) — Endoscopic Method for Detection of Head and Neck Cancer

Lukeš, Petr; Zábrodský, Michal; Plzák, Jan; Chovanec, Martin; JaroslavBetka,; Foltynová, Eva; Betka, Jan

doi:10.5772/52738

Cited by 21 publications

(29 citation statements)

References 21 publications

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“…Recently, several spectral endoscopic imaging techniques have been developed, such as narrow band imaging [33][34][35] and blue laser imaging. [36][37][38][39] Both techniques exploit narrow-band blue light to enhance the increase in abnormal microvessels in the superficial mucosa, which is one of the characteristic morphological features of cancerous lesions.…”

Section: Discussionmentioning

confidence: 99%

Optical imaging of hemoglobin oxygen saturation using a small number of spectral images for endoscopic application

Saito

Yamaguchi

2015

J. Biomed. Opt

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Abstract. Tissue hypoxia is associated with tumor and inflammatory diseases, and detection of hypoxia is potentially useful for their detailed diagnosis. An endoscope system that can optically observe hemoglobin oxygen saturation (StO 2 ) would enable minimally invasive, real-time detection of lesion hypoxia in vivo. Currently, point measurement of tissue StO 2 via endoscopy is possible using the commercial fiber-optic oximeter T-Stat, which is based on visible light spectroscopy at many wavelengths. For clinical use, however, imaging of StO 2 is desirable to assess the distribution of tissue oxygenation around a lesion. Here, we describe our StO 2 imaging technique based on a small number of wavelength ranges in the visible range. By assuming a homogeneous tissue, we demonstrated that tissue StO 2 can be obtained independently from the scattering property and blood concentration of tissue using four spectral bands. We developed a prototype endoscope system and used it to observe tissue-simulating phantoms. The StO 2 (%) values obtained using our technique agreed with those from the T-Stat within 10%. We also showed that tissue StO 2 can be derived using three spectral band if the scattering property is fixed at preliminarily measured values.

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Section: Discussionmentioning

confidence: 99%

Optical imaging of hemoglobin oxygen saturation using a small number of spectral images for endoscopic application

Saito

Yamaguchi

2015

J. Biomed. Opt

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“…The vessels from the superficial capillary network absorb the 415 nm channel; they appear brown, enabling the analysis of the mucosa's superficial architecture (mucosal pattern). The 540 nm wavelength light penetrates deeper and highlights the vessels in the depth of the mucosa/submucosa, which appear cyan [23,25]. In WLE, fine mucosal blood vessels and thick submucosal blood vessels appear as red areas [26].…”

Section: Narrow Band Imagingmentioning

confidence: 99%

“…By analysing vessel architecture, mucosa can be classified as normal or abnormal ( Figure 2): in tumours the vascularization 14 is more pronounced and irregular; in gastrointestinal bleeding, the absorption of blue and green light are increased and, therefore, the image resulted is darker [24]. By combining NBI with magnifying endoscopy (up to × 150, but usually × 80 is used) and high-definition, more precise images can be achieved [23]. For maintaining an adequate and focused distance, a transparent hood is fixed at the tip of the endoscope [22], to enable better visualization of dysplasia or malignancy [27].…”

Section: Narrow Band Imagingmentioning

confidence: 99%

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Advanced Endoscopic Imaging Techniques for the Study of Colonic Mucosa in Patients with Inflammatory Bowel Disease

Ştefănescu

Pereira

Filip

et al. 2016

Romanian Journal of Internal Medicine

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Background. Crohn's disease and ulcerative colitis are inflammatory bowel diseases (IBD) associated with colorectal cancer risk in long-standing diseases. In order to assess the colonic mucosa and to discover dysplastic or neoplastic lesions, advanced endoscopic techniques are needed. Such techniques are detailed in this review: chromoendoscopy, autofluorescence imaging (AFI), narrow band imaging (NBI), i-SCAN, Fujinon Intelligent Color Enhancement (FICE) and confocal laser endomicroscopy (CLE).Aim. The aim of the review is to describe and establish the clinical impact of advanced endoscopic techniques, that could be used in IBD patients'examination in order to assess mucosal healing, microscopic inflammation, dysplasia or neoplasia.Materials and Methods. A literature research about new endoscopic approaches of patients with IBD was made. Results.A lot of studies have been performed to reveal which imaging technique might be used for IBD surveillance. Regarding dysplasia or neoplasia detection and mucosal healing or inflammation assessment, CE proved to be superior to white light endoscopy (WLE), while NBI and AFI did not show an encouraging result. I-SCAN did not improve the colonoscopy quality while FICE has been used in a few studies. CLE could be used to characterize a lesion, providing the same results as conventional histology.Conclusion. At the moment, CE is the only technique which has been included in guidelines for IBD surveillance. CLE can be used to assess any lesion detected with WLE during surveillance, while the other imaging techniques require more studies to determine their efficacy or inefficacy.

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“…Narrow Band Imaging can detect superficial lesion, so that unnecessary biopsy can be reduced. 7,8 Although study about Narrow Band Imaging is increased like in digestive system, it is not in head-neck region including nasopharynx. 9 This study aimed to determine the diagnostic value of Narrow Band Imaging in diagnosing nasopharyngeal carcinoma.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic Value of Narrow Band Imaging in Diagnosing Nasopharyngeal Carcinoma

Yuniserani¹,

Hernowo²,

Permana³

2017

amj

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Background: Carcinoma is the most common tumor in nasopharynx. Endoscopy is used to determine the presence of lesions suspected of malignancy. Narrow Band Imaging is an endoscopic technique that uses narrow-band spectrum as a filter to determine any mucosal vascular changes in carcinoma. Narrow Band Imaging can early detect superficial mucosal lesions that are difficult to detect with conventional endoscopy, so that diagnosing is more accurate and occurrence of unnecessary biopsies can be reduced. This study aimed to determine diagnostic value of Narrow Band Imaging in diagnosing nasopharyngeal carcinoma. Methods: This diagnostic test study was conducted at Department of Otorhinolaryngology-Head and Neck Surgery Dr. Hasan Sadikin General Hospital, Bandung from September to October 2014. Twenty four patients with clinical signs and symptoms of nasopharyngeal carcinoma that fulfilled the study criteria were assigned using consecutive sampling to examine with Narrow Band Imaging and histopathology examination. The data were then analyzed with 2x2 table to determine sensitivity, specificity, positive predictive value, negative predictive value, and accuracy. Results: In this study, the results of sensitivity, specificity, positive predictive value, negative predictive value, and accuracy in diagnosing nasopharyngeal carcinoma using Narrow Band Imaging were 93.75%, 62.5%, 83.3%, 83.3%, and 83.3%, respectively.

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Narrow Band Imaging (NBI) — Endoscopic Method for Detection of Head and Neck Cancer

Cited by 21 publications

References 21 publications

Optical imaging of hemoglobin oxygen saturation using a small number of spectral images for endoscopic application

Optical imaging of hemoglobin oxygen saturation using a small number of spectral images for endoscopic application

Advanced Endoscopic Imaging Techniques for the Study of Colonic Mucosa in Patients with Inflammatory Bowel Disease

Diagnostic Value of Narrow Band Imaging in Diagnosing Nasopharyngeal Carcinoma

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