Meshed capillary vessels by use of narrow-band imaging for differential diagnosis of small colorectal polyps

Sano, Yasushi; Ikematsu, Hiroaki; Fu, Kuang I.; Emura, Fabián; Katagiri, Atsushi; Horimatsu, Takahiro; Kaneko, Kazuhiro; Soetikno, Roy; Yoshida, Shigeaki

doi:10.1016/j.gie.2008.04.066

Cited by 260 publications

(228 citation statements)

References 42 publications

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“…рис. 8, в); при увеличи-тельной эндоскопии и при осмотре в условиях хро-москопии (индигокармин) -III-L и/или IV типы ямочного рисунка микрорельефа поверхности (по S. Kudo) [12,13].…”

Section: доказательная гастроэнтерология 1 2017unclassified

“…Внешний вид послед-него определяют согласно категориям Парижской классификации [11]. Микроваскулярную сеть изуча-ют в белом свете при небольшом увеличении и без применения хромоскопии, а также путем осмотра в узком спектре света (результат оценивают в соответ-ствии с классификацией SANO) [12]. Эндоскопиче-ская оценка микроархитектоники (микрорельефа) эпителиальной поверхности образования проводит-ся с использованием увеличения в комбинации с хромоскопией или эндоскопии с усилением четко-сти изображения.…”

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Endoscopic semiotics. Diagnostics and the choice of the methods for the treatment of squamous epithelial tumours of the colon

Веселов¹,

Nechipay²,

Майновская³

et al. 2017

Dok. gastroenterol.

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Цель -оптимизация тактики клинического ведения пациентов с плоскими новообразованиями толстой кишки путем улучшения качества их уточняющей диагностики. Материал и методы. Оценены и сопоставлены результаты эндоскопической и морфологической диагностики 152 плоских, уплощенных и плоско-углубленных эпителиальных новообразований толстой кишки, обнаруженных у 86 больных (42 женщины и 44 мужчины) в возрасте от 39 до 79 лет. Видеоэндоскопическая диагностика проводилась путем колоноскопии с дополненным хромоскопией осмотром в белом свете в узком спектре света и с использованием функции увеличения изображения. При анализе изображений обнаруженных новообразований и оценке характера последних применялись клинических классификаций NICE, S. Kudo, T. Kimura, Y. Sano. Результаты. При рутинном осмотре в белом свете диагностическая точность метода в выявлении гиперпластических полипов составила 70%, сидячих зубчатых аденом -95%, доброкачественных аденом -92%, малигнизированных аденом -100%. Применение уточняющих технологий продемонстрировало сопоставимую диагностическую точность: гиперпластические полипы правильно диагностированы в 72% случаев, зубчатые образования -в 96%, доброкачественные аденомы -в 94% и малигнизированные аденомы -в 100% случаев. Заключение. При наличии определенных практических навыков и соответствующей базовой подготовки врача-эндоскописта рутинная эндоскопия (исследование в белом свете) в диагностике плоских, уплощенных и плоско-углубленных новообразований толстой кишки по показателю диагностической точности практически не уступает исследованию с использованием современных технологий уточняющей эндоскопической диагностики. Основанные на оценке исключительно визуальной эндоскопической картины диагностические выводы, содержащие предположения о вероятной морфологической структуре обнаруженных плоских новообразований, приближаются по точности к результатам морфологической идентификации последних. Aim. The objective of the present study was the optimization of the strategy for the treatment of the patients presenting with squamous epithelial neoplasms in the colon by improving the quality of their corrective diagnostics. Materials and methods. The study was designed to evaluate and compare the results of endoscopic and morphological diagnostics of 152 flat, flattened, and flat-penetrating squamous epithelial neoplasms of the colon detected in 86 patients (42 women and 44 men at the age from 39 to 79 years). The videoendoscopic diagnostics was carried out by means of colonoscopy in the combination with chromoscopy in the narrow-spectrum white light and with the use of the image magnification function. The analysis of neoplasm images and the evaluation of their character was based on the NICE, S. Kudo, T. Kimura, and Y. Sano classifications. Results. The diagnostic accuracy of the method employed during the routine examination in visible light for the detection of hyperplastic polyps was 70%, sessile serrated adenomas 95%, benign adenomas 92%, and malignized adenomas 100%. The application of the clarifying techno...

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Section: доказательная гастроэнтерология 1 2017unclassified

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Endoscopic semiotics. Diagnostics and the choice of the methods for the treatment of squamous epithelial tumours of the colon

Веселов¹,

Nechipay²,

Майновская³

et al. 2017

Dok. gastroenterol.

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“…MC vessels are disorganized in cancerous lesions (type III pattern) [2]. The MC pattern evaluation represents a useful diagnostic tool in differentiating small colonic polyps (diagnostic accuracy, sensitivity, and specificity 95.3%, 96.4%, and 92.3%, respectively) [3].…”

Section: Characterization Of Colonic Lesionsmentioning

confidence: 99%

The Usefulness Of Narrow Band Imaging Endoscopy For The Real Time Characterization Of Colonic Lesions

Boeriu

Pascarenco

Brusnic

et al. 2016

Acta Medica Marisiensis

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Narrow band imaging represents a promising endoscopic technique which allows real time characterization of colonic lesions by assessment of mucosal and vascular patterns. Due to the ability to make an optical biopsy, NBI could become a useful tool in clinical decisions regarding therapy and surveillance. The aim of this paper is to review the current knowledge on the optical diagnosis of colonic lesions by using NBI endoscopy. We reviewed research articles, reviews and meta-analyses from the PubMed and MEDLINE containing relevant data in this field. The validity of endoscopic criteria for the differentiation of adenoma and hyperplastic polyps, as well as of invasive cancer, has been evaluated in recent studies. Based on the prediction of polyp histology, new potential cost saving strategies have been proposed. Many reports are focused on the accuracy of optical biopsy by using NBI for predicting colonoscopy surveillance intervals and adenomatous histology in diminutive polyps, according to the Preservation and Incorporation of Valuable Endoscopic Innovations statement. Optical diagnosis is still under evaluation, and cannot yet be endorsed in routine practice. The high level of performance achieved by expert endoscopists needs to be replicated in the community utilizing reliable and standardized endoscopic criteria. IntroductionThe development of advanced endoscopic techniques such as narrow band imaging endoscopy, with or without magnification, represents an important step in the improvement of characterization of colonic lesions by predicting underlying histology. This creates the possibility to adopt new strategies regarding therapy and surveillance in clinical practice. The potential benefits of the real time estimation of a polyp's histology during NBI endoscopy, so called "optical biopsy", are related to potentially decreasing total costs of colonoscopy by eliminating unnecessary biopsies and polypectomies. Recent reports have shown promising results in this field, but controversies remain. Concerns center upon a lack of standardization among different classification systems, variable inter-observer agreement, and lagging clinical acceptance.The aim of this paper is to assess the current knowledge on the optical diagnosis of colonic lesions by using NBI endoscopy. We reviewed research articles, reviews and meta-analyses published in the last eight years in the PubMed and MEDLINE databases for the following search terms: narrow band imaging endoscopy, colonic polyps, and colorectal neoplasia.

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“…This technology is based on narrowing the bandwidth of spectral transmittance of the optical lters used in the frame sequential image method for creating endoscopy images 6 . In doing so, NBI enables real-time imaging of capillary vessels in endoscopic images.…”

Section: Evaluation Of Publication Biasmentioning

confidence: 99%

“…In these criteria, called Kudo s pit pattern classification, dye spraying chromoendoscopy and magnifying endoscopy are used to differentiate among non-neoplastic, neoplastic, and cancerous lesions 5 . Meanwhile, after the advent of a new endoscopic technology called Narrow Band Imaging NBI early in the 21st century, several researchers proposed that this modality could be used with certain predictive criteria of cancer depth 6,7 . In this system, images of the microvessels and the surface structures of lesions are provided without the need for dye spraying ; endoscopists then estimate the depth of cancer by observing these features 6,7 .…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Magnifying Chromoendoscopy Versus Narrow Band Imaging in the Diagnosis of Depth of Invasion for Early Colorectal Cancers

Kobayashi

Kudo

Miyachi

et al. 2011

Showa Univ J Med Sci

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: Although chromoendoscopy and narrow band imaging NBI are widely used in diagnosing the invasion depth of colorectal cancers, comparative studies of these modalities are lacking. This meta-analysis compared the performance of these two modalities in colorectal cancer diagnosis. MEDLINE, EMBASE, and Cochrane Library were searched for relevant original articles published up to December 20 th , 2010. Major criteria for article inclusion were : i magnifying chromoendoscopy or NBI was used as a diagnostic modality and pit pattern or vascular pattern was used as a diagnostic classi cation ; ii sensitivity and speci city were reported ; iii absolute numbers of true-positive, false-positive, true-negative, and false-negative cases, or their equivalent, were provided ; and iv pathology of biopsy, endoscopy, or surgical treatment was used as the reference standard. Sensitivity and speci city were pooled using a random effects model. Regression analysis was performed to compare the discriminatory power between chromoendoscopy and NBI by including a dummy variable. We made the assumption that a positive regression coef cient implied a better discriminatory power for NBI, and vice versa. Of 1846 screened articles, 16 ful lled all inclusion criteria. Pooled sensitivity for chromoendoscopy and NBI was 0.85 95 CI : 0.82-0.87 and 0.80 0.76-0.85 , respectively, and specificity was 0.98 0.97-0.99 and 0.98 0.97-0.99 , respectively. The regression coef cient for chromoendoscopy versus NBI was 0.02 95 CI : 1.18-1.71 . These results indicate that chromoendoscopy and NBI may have similar power for the diagnostic assessment of colonic neoplasms. However, other factors such as convenience, time, and cost still must be taken into account in making the nal diagnostic choice.

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Meshed capillary vessels by use of narrow-band imaging for differential diagnosis of small colorectal polyps

Cited by 260 publications

References 42 publications

Endoscopic semiotics. Diagnostics and the choice of the methods for the treatment of squamous epithelial tumours of the colon

Endoscopic semiotics. Diagnostics and the choice of the methods for the treatment of squamous epithelial tumours of the colon

The Usefulness Of Narrow Band Imaging Endoscopy For The Real Time Characterization Of Colonic Lesions

A Comparison of Magnifying Chromoendoscopy Versus Narrow Band Imaging in the Diagnosis of Depth of Invasion for Early Colorectal Cancers

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