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Advanced Colonoscopy Techniques in Inflammatory Bowel Diseases

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Gastrointestinal and Pancreatico-Biliary Diseases: Advanced Diagnostic and Therapeutic Endoscopy

Abstract

Colonoscopy in inflammatory bowel diseases is an essential tool for the diagnosis and assessment of the disease (UC and colonic CD), to detect dysplasia and endoscopic resection of colonic lesions. The assessment of the disease has dramatically improved in the last decade due to technological advances. These have resulted in high definition and virtual chromoendoscopy images incorporated in the new generation scopes, thereby enhancing mucosal and vascular pattern. Confocal laser endomicroscopy (CLE) and endocytoscopy are evolving endoscopic techniques that allow a deeper analysis of the intestinal mucosa at ultrastructural levels. Therefore, endoscopy is getting closer to histology. For surveillance colonoscopy, dye chromoendoscopy with targeted biopsies is the recommended technique by major guidelines. However, the recent European Society of Gastrointestinal Endoscopy guidelines suggest using virtual chromoendoscopy (VCE) for surveillance if the endoscopist is well-trained. Moreover, advanced techniques may help the development of therapeutic strategy. Finally, the computer-aided diagnosis systems are emerging as new tools in IBD patients. In this chapter, we will explain and analyze the role of advanced techniques in IBD patients and what it is new at the horizon.

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Abbreviations

AFI:

Autofluorescence imaging

AI:

Artificial intelligence

AUROC:

Area under the ROC curve

BLI:

Blue laser image

CD:

Crohn’s disease

CDEIS:

Crohn’s Disease Endoscopic Index of Severity

CLE:

Confocal laser endomicroscopy

DCE:

Dye chromoendoscopy

DRI:

Dual red imaging

EC:

Endocytoscope

ER:

Endoscopic remission

FUSE:

Full spectrum endoscopy

HR:

Histological remission

IBD:

Inflammatory bowel diseases

JNET:

Japan NBI expert team

LCI:

Linked color imaging

MAGIC Score:

Mucosal analysis of inflammatory gravity by i-scan TE-c image

MES:

Mayo endoscopic score

MH:

Mucosal healing

MPV:

Mucosal vascular pattern

NBI:

Narrow band imaging

PICaSSO:

Paddington international virtual chromoendoscopy score

RCT:

Randomized controlled trials

RR:

Relative risk

SES-CD:

Simple endoscopic score in Crohn’s disease

UC:

Ulcerative colitis

UCCIS:

Ulcerative colitis colonoscopic index of severity

UCEIS:

Ulcerative colitis endoscopic index of severity

VCE:

Virtual chromoendoscopy

WLE:

White light endoscopy

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Iacucci, M., Cannatelli, R. (2021). Advanced Colonoscopy Techniques in Inflammatory Bowel Diseases. In: Testoni, P.A., Inoue, H., Wallace, M.B. (eds) Gastrointestinal and Pancreatico-Biliary Diseases: Advanced Diagnostic and Therapeutic Endoscopy. Springer, Cham. https://doi.org/10.1007/978-3-030-29964-4_29-1

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