Search Results

  • Enhanced ultrasound imaging 

    EUS has assumed a primary role in the evaluation of intraluminal and extraluminal pathology. However, even with the addition of tissue sampling via FNA, some limitations exist in the differentiation of benign from malignant processes. Recent innovations in EUS intended to address these limitations include contrast-enhanced EUS (CE-EUS) and EUS elastography.
  • Endoscopic tattooing

    The intraoperative identification of lesions previously detected by endoscopy is often difficult, particularly during laparoscopic surgery.1 Estimation of the tumor site at colonoscopy can be imprecise, with as many as 14% of tumor locations incorrectly identified.1,2 Lesions that may be difficult to identify by inspection or palpation at surgery include small or flat neoplasms, polypectomy sites,…
  • Autofluorescence imaging

    Autofluorescence imaging (AFI) is based on the detection of natural tissue fluorescence emitted by endogenous molecules (fluorophores) such as collagen, flavins, and porphyrins. After excitation by a short-wavelength light source, these fluorophores emit light of longer wavelengths (fluorescence). The overall fluorescence emission differs among various tissue types due to corresponding differences…
  • Endocytoscopy

    Recent technological advances in endoscopic imaging have resulted in devices, such as confocal endoscopy and endocytoscopy, that enable visualization of mucosal features at image resolutions rivaling those of histology [inoue 05]. These recent technological advances offer the potential for real-time optical biopsy and lesion characterization and/or differentiation. Endocytoscopy (EC) is an ultra-h…
  • Magnets in the GI tract

    Magnets are of interest to the endoscopist or surgeon because they exert a force over a distance and can therefore be used to control instruments remotely or to create compression forces. Applications of magnets or magnetic materials in the GI tract will be reviewed.
  • Enhanced imaging in the GI tract: spectroscopy and optical coherence tomography

    Conventional white-light endoscopy enables examination of the GI tract mucosa. Biopsy with histologic examination is necessary to examine tissue at a microscopic level. The ability to examine microscopic characteristics of tissue (optical biopsy) during endoscopy is a desirable goal. Enhanced imaging techniques have been developed with the goal of providing additional real-time diagnostic informat…
  • Wireless capsule endoscopy

    TECHNOLOGY STATUS EVALUATION REPORT Wireless capsule endoscopy To promote the appropriate use of new or emerging endoscopic technologies and those technologies that have an impact on endoscopic practice, the American Society for Gastrointestinal Endoscopy (ASGE )Technology Committee presents relevant information to pra
  • ASGE Technology Committee systematic review and meta-analysis assessing the ASGE PIVI thresholds for adopting real-time imaging–assisted endoscopic targeted biopsy during endoscopic surveillance of Barrett’s esophagus

    Endoscopic real-time imaging of Barrett’s esophagus (BE) with advanced imaging technologies enables targeted biopsies and may eliminate the need for random biopsies to detect dysplasia during endoscopic surveillance of BE. This systematic review and meta-analysis was performed by the American Society for Gastrointestinal Endoscopy (ASGE) Technology Committee to specifically assess whether acceptab…
  • Endoscopes and devices to improve colon polyp detection 

    Endoscopes and devices to improve colon polyp detection TECHNOLOGY STATUS E Endoscopes and devices to improv new, or emerging endoscopic technologies that have an in t ing standard colonoscopy. A simulation study that used CT rture 1122 GASTROINTESTINAL ENDOSCOPY Volume 81, No. 5 : 2015 the charge-coupled device. Because additional light needed to illuminate a larger field of view, wide-an
  • Confocal laser endomicroscopy

    Confocal laser endomicroscopy (CLE) is an endoscopic modality developed to obtain very high magnification and resolution images of the mucosal layer of the GI tract. CLE is based on tissue illumination with a low-power laser with subsequent detection of the fluorescence of light re- flected from the tissue through a pinhole (Fig. 1).1 The term confocal refers to the alignment of both illumination …