Image-enhanced endoscopy for the diagnosis of colon neoplasms

Fujiya, Mikihiro; Kohgo, Yutaka

doi:10.1016/j.gie.2012.07.031

Cited by 22 publications

(15 citation statements)

References 95 publications

(112 reference statements)

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“…A meta-analysis of several studies concerning the differentiation between colorectal adenomas and hyperplastic polyps showed that the accuracy of predictions of lesion pathology were 62% to 93% for NBI, 65% to 82% for while light endoscopy (WLE), and 69% to 96% for chromoendoscopy 10,15. The accuracy of pathological prediction by NBI was higher than that of WLE, and similar to that of chromoendoscopy.…”

Section: Narrow Band Imagingmentioning

confidence: 97%

Equipment-Based Image-Enhanced Endoscopy for Differentiating Colorectal Polyps

Koo

2014

Clin Endosc

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The use of colonoscopy for the screening and surveillance of colorectal cancer has increased. However, the miss rate of advanced colorectal neoplasm is known to be 2% to 6%, which could be affected by the image intensity of colorectal lesions. Image-enhanced endoscopy (IEE) is capable of highlighting lesions, which can improve the colorectal adenoma detection rate and diagnostic accuracy. Equipment-based IEE methods, such as narrow band imaging (NBI), Fujinon intelligent color enhancement (FICE), and i-Scan, are used to observe the mucosal epithelium of the microstructure and capillaries of the lesion, and are helpful in the detection and differential diagnosis of colorectal tumors. Although NBI is similar to chromoendoscopy in terms of adenoma detection rates, NBI can be used to differentiate colorectal polyps and to predict the submucosal invasion of malignant tumors. It is also known that FICE and i-Scan are similar to NBI in their detection rates of colorectal lesions. Through more effective and advanced endoscopic equipment, diagnostic accuracy could be improved and new treatment paradigms developed.

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Section: Narrow Band Imagingmentioning

confidence: 97%

Equipment-Based Image-Enhanced Endoscopy for Differentiating Colorectal Polyps

Koo

2014

Clin Endosc

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“…Consequently, the user can distinguish between the two when undertaking the colonoscopy procedure (Cho, ). Studies have been conducted to compare AFI to white light colonoscopy, with one undertaken in 2013 which showed that AFI did not improve the detection rate (Fujiya & Kohgo, ); however, a study conducted three years earlier showed that AFI with a transparent hood increased the detection rates of polyps (Takeuchi et al, ). Another study conducted in 2013 compared the use of NBI, FICE, confocal laser endomicroscopy (CLE) and AFI to aid in the diagnosis of polyps in the colon (Wanders, East, Uitentuis, Leeflang, & Dekker, ).…”

Section: Commercial Colonoscopy Devices Performance and Market Analysismentioning

confidence: 99%

Colonoscopy technologies for diagnostics and drug delivery

et al. 2019

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With a global increase of colorectal cancer, inflammatory bowel disease and other colon-related illnesses, advanced technologies are needed for imaging of the colon and localized drug delivery. Optical colonoscopy is the gold standard for imaging of the colon. However, existing colonoscopy approaches have a high adenoma misdiagnosis rate, which can be lethal for patients. This article reviews the emergence of virtual colonoscopy, dye-based chromoendoscopy, electronic chromoendoscopy and capsule endoscopy in diagnosis. Flexible spectral imaging colour enhancement, the use of second-generation capsule endoscopy and i-scan were described. Moreover, a drug delivery system using capsule endoscopy was discussed. Finally, this review includes market analyses of commercial products, clinical trials and future prospects of colonoscopy devices. K E Y W O R D Scolonoscopy, diagnostics, drug delivery, endoscopy, sensors

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“…Novel methods were therefore developed to overpass anatomical difficulties of the colon, enable more accurate, even microscopic identification of abnormalities in the size, density and shape of crypts and vessels [13,[16][17][18]. They can be roughly divided into three categories, ones that improve overall mucosal examination and increase the polyp detection, those that enable more thorough examination (almost histological) of the detected lesions and minimally invasive techniques.…”

Section: Introductionmentioning

confidence: 99%

Advances in endoscopic diagnosis of colorectal cancer

Čavlina¹,

Rustemović²

2017

Rad Hrvatske akademije znanosti i umjetnosti

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SummaryColorectal cancer (CRC) is the third most commonly diagnosed malignant tumor and the fourth leading cause of cancer death in the world. Since it is known that most of colorectal cancers arise from adenomatous polyps, screening programmes were developed in order to improve detection of polyps and early diagnosis of carcinoma. Colonoscopy is the gold standard for diagnosis of CRC. Because of its high adenoma missing rates and lower ability to differentiate between benign and malignant lesions novel techniques are being developed in order to improve mucosal visualization, reduce adenoma missing rates and enable in-vivo optical diagnosis. Methods can roughly be divided into three categories, ones that present improved visualization techniques (endoscopes with increased field of view, auxiliary imaging devices, so called addon devices), ones that enable more detail tissue characterization presenting the possibility for virtual biopsy (conventional or virtual chromoendoscopy, confocal laser endomicroscopy and endocytoscopy), and other minimally or non-invasive techniques.Further investigation is needed, but hopefully these innovations with continuous technical improvement might help to reduce the colorectal cancer incidence and mortality.

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Image-enhanced endoscopy for the diagnosis of colon neoplasms

Abstract: Autho

Cited by 22 publications

References 95 publications

Equipment-Based Image-Enhanced Endoscopy for Differentiating Colorectal Polyps

Equipment-Based Image-Enhanced Endoscopy for Differentiating Colorectal Polyps

Colonoscopy technologies for diagnostics and drug delivery

Advances in endoscopic diagnosis of colorectal cancer

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