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Dis Esophagus. 2019 May 9. pii: doz037. doi: 10.1093/dote/doz037. [Epub ahead of print]

Interpretation of volumetric laser endomicroscopy in Barrett's esophagus using image enhancement software.

Author information

1
Department of Internal Medicine, Scottsdale, Arizona.
2
Division of Gastroenterology and Hepatology, Mayo Clinic, Scottsdale, Arizona.
3
Division of Gastroenterology, Long Island Jewish Medical Center, Northwell Health System, New Hyde Park, New York, USA.
4
Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.

Abstract

Image interpretation of Barrett's esophagus (BE) with volumetric laser endomicroscopy (VLE) can be enhanced by image processing software that highlights established features using a color-graded scale (intelligent real-time image segmentation, IRIS). This study aims to provide a description of IRIS features of various gastroesophageal tissue types using histologic correlation. A database of 80 VLE laser-marked targets with histologic correlation was reviewed for various tissue types. IRIS was applied off-line to the VLE scans, laser-marked targets were identified, and feature review was performed. Squamous epithelium targets (N = 7) showed IRIS layered architecture with lack of surface hyper-reflectivity and epithelial glands. Gastric cardia targets (N = 10) showed absent layering (100%) and surface hyper-reflectivity with epithelial glands (40%). Nondysplastic BE targets (N = 39) showed surface hyper-reflectivity (64%), epithelial glands (51%), and lack of layering (74%). Targets of BE with early neoplasia (N = 24), showed surface hyper-reflectivity (96%), epithelial glands (67%), and lack of layering (96%). IRIS features that characterize each tissue type appear to mirror the nonenhanced VLE counterparts that define them.

KEYWORDS:

Barrett's esophagus; intelligent real-time image segmentation; volumetric laser endomicroscopy

PMID:
31069389
DOI:
10.1093/dote/doz037

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