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van der Laan JJH, van der Putten JA, Zhao X, Karrenbeld A, Peters FTM, Westerhof J, de With PHN, van der Sommen F, Nagengast WB. Optical Biopsy of Dysplasia in Barrett's Oesophagus Assisted by Artificial Intelligence. Cancers (Basel) 2023; 15:cancers15071950. [PMID: 37046611 PMCID: PMC10093622 DOI: 10.3390/cancers15071950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
Optical biopsy in Barrett's oesophagus (BE) using endocytoscopy (EC) could optimize endoscopic screening. However, the identification of dysplasia is challenging due to the complex interpretation of the highly detailed images. Therefore, we assessed whether using artificial intelligence (AI) as second assessor could help gastroenterologists in interpreting endocytoscopic BE images. First, we prospectively videotaped 52 BE patients with EC. Then we trained and tested the AI pm distinct datasets drawn from 83,277 frames, developed an endocytoscopic BE classification system, and designed online training and testing modules. We invited two successive cohorts for these online modules: 10 endoscopists to validate the classification system and 12 gastroenterologists to evaluate AI as second assessor by providing six of them with the option to request AI assistance. Training the endoscopists in the classification system established an improved sensitivity of 90.0% (+32.67%, p < 0.001) and an accuracy of 77.67% (+13.0%, p = 0.020) compared with the baseline. However, these values deteriorated at follow-up (-16.67%, p < 0.001 and -8.0%, p = 0.009). Contrastingly, AI-assisted gastroenterologists maintained high sensitivity and accuracy at follow-up, subsequently outperforming the unassisted gastroenterologists (+20.0%, p = 0.025 and +12.22%, p = 0.05). Thus, best diagnostic scores for the identification of dysplasia emerged through human-machine collaboration between trained gastroenterologists with AI as the second assessor. Therefore, AI could support clinical implementation of optical biopsies through EC.
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Affiliation(s)
- Jouke J H van der Laan
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Joost A van der Putten
- Department of Electrical Engineering, Video Coding and Architectures, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Xiaojuan Zhao
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Arend Karrenbeld
- Department of Pathology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Frans T M Peters
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Jessie Westerhof
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Peter H N de With
- Department of Electrical Engineering, Video Coding and Architectures, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Fons van der Sommen
- Department of Electrical Engineering, Video Coding and Architectures, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Wouter B Nagengast
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
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2
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Zihni AM, DeMeester SR. Advanced Endoluminal Technologies for Barrett's Esophagus: Focus on Optical Coherence Tomography and Confocal Laser Endomicroscopy. Thorac Surg Clin 2018; 28:465-472. [PMID: 30268292 DOI: 10.1016/j.thorsurg.2018.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Barrett's esophagus (BE) may progress to dysplasia and adenocarcinoma. The value of Barrett's surveillance with random biopsies is being questioned, but new technologies may enhance detection of progression within BE and guide endoscopic resection and ablation techniques. This review will focus on optical coherence tomography and endomicroscopy for patients with BE.
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Affiliation(s)
- Ahmed M Zihni
- Division of Gastrointestinal and Minimally Invasive Surgery, The Oregon Clinic, 4805 NE Glisan Street, Suite 6N60, Portland, OR 97213, USA; Providence Portland Medical Center, 4805 NE Glisan Street, Suite 6N60, Portland, OR 97213, USA; The Foundation for Surgical Innovation and Education, 4805 NE Glisan Street, Suite 6N60, Portland, OR 97213, USA
| | - Steven R DeMeester
- Division of Gastrointestinal and Minimally Invasive Surgery, The Oregon Clinic, 4805 NE Glisan Street, Suite 6N60, Portland, OR 97213, USA; The Foundation for Surgical Innovation and Education, 4805 NE Glisan Street, Suite 6N60, Portland, OR 97213, USA.
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3
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Mkarimi M, Mashimo H. Advanced Imaging for Barrett's Esophagus and Early Neoplasia: Surface and Subsurface Imaging for Diagnosis and Management. Curr Gastroenterol Rep 2018; 20:54. [PMID: 30302571 DOI: 10.1007/s11894-018-0661-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW Esophageal adenocarcinoma bears one of the fastest rising incidence of any cancers and generally arises in the setting of gastroesophageal reflux and Barrett's esophagus. However, early detection of neoplasia can be challenging since most patients are asymptomatic until they progress to more advanced and less curable stages, and early dysplastic lesions can be small, multifocal, and difficult to detect. Clearly, new imaging tools are needed in light of sampling error associated with random biopsies, the current standard of practice. RECENT FINDINGS Advances in endoscopic imaging including virtual chromoendoscopy, confocal laser endomicroscopy, and subsurface imaging with optical coherence tomography have ushered in a new era for detecting subtle neoplastic lesions. Moreover, in light of esophagus-sparing treatments for neoplastic lesions, such tools are likely to guide ablation and follow-up management. While there is no ideal single imaging modality to facilitate improved detection, staging, ablation, and follow-up of patients with dysplastic Barrett's esophagus, new advances in available technology, the potential for multimodal imaging, and the use of computer-aided diagnosis and biomarkers all hold great promise for improving detection and treatment.
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Affiliation(s)
- Mansoureh Mkarimi
- VA Boston Healthcare, Harvard Medical School, 1400 VFW Parkway, West Roxbury, MA, 02132, USA
| | - Hiroshi Mashimo
- VA Boston Healthcare, Harvard Medical School, 1400 VFW Parkway, West Roxbury, MA, 02132, USA.
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Inadomi J, Alastal H, Bonavina L, Gross S, Hunt RH, Mashimo H, di Pietro M, Rhee H, Shah M, Tolone S, Wang DH, Xie SH. Recent advances in Barrett's esophagus. Ann N Y Acad Sci 2018; 1434:227-238. [PMID: 29974975 DOI: 10.1111/nyas.13909] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 05/21/2018] [Accepted: 05/29/2018] [Indexed: 12/20/2022]
Abstract
Barrett's esophagus (BE) is the only known precursor of esophageal adenocarcinoma, one of the few cancers with increasing incidence in developed countries. The pathogenesis of BE is unclear with regard to either the cellular origin of this metaplastic epithelium or the manner in which malignant transformation occurs, although recent data indicate a possible junctional origin of stem cells for BE. Treatment of BE may be achieved using endoscopic eradication therapy; however, there is a lack of discriminatory tools to identify individuals at sufficient risk for cancer development in whom intervention is warranted. Reduction in gastroesophageal reflux of gastric contents including acid is mandatory to achieve remission from BE after endoscopic ablation, and can be achieved using medical or nonmedical interventions. Research topics of greatest interest include the mechanism of BE development and transformation to cancer, risk stratification methods to identify individuals who may benefit from ablation of BE, optimization of eradication therapy, and surveillance methods to ensure that remission is maintained after eradication is achieved.
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Affiliation(s)
- John Inadomi
- Division of Gastroenterology, University of Washington School of Medicine, Seattle, Washington
| | - Hani Alastal
- MRC Cancer Unit at the University of Cambridge, Cambridge, UK.,Faculty of Life Sciences and Education, University of South Wales, Newport City, UK
| | - Luigi Bonavina
- Department of Biomedical Sciences for Health, University of Milano School of Medicine, Milan, Italy.,Division of General Surgery, IRCCS Policlinico San Donato, Milan, Italy
| | - Seth Gross
- Division of Gastroenterology, New York University, New York, New York
| | | | - Hiroshi Mashimo
- Division of Gastroenterology, Harvard Medical School, Boston, Massachusetts.,VA Boston Healthcare System, Boston, Massachusetts
| | | | - Horace Rhee
- Division of Gastroenterology and Hepatology, Stanford University, Palo Alto, California
| | - Marmy Shah
- Division of Gastroenterology, Loyola University Chicago Stritch School of Medicine, Chicago, Illinois
| | - Salvatore Tolone
- Division of General, Mini-Invasive and Bariatric Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - David H Wang
- Division of Hematology and Oncology, UT Southwestern Medical Center and VA North Texas Health Care System, Dallas, Texas
| | - Shao-Hua Xie
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
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5
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Huynh R, Ip M, Chang J, Haifer C, Leong RW. Expert-led didactic versus self-directed audiovisual training of confocal laser endomicroscopy in evaluation of mucosal barrier defects. Endosc Int Open 2018; 6:E115-E122. [PMID: 29344572 PMCID: PMC5770263 DOI: 10.1055/s-0043-114664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 06/14/2017] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND AND STUDY AIMS Confocal laser endomicroscopy (CLE) allows mucosal barrier defects along the intestinal epithelium to be visualized in vivo during endoscopy. Training in CLE interpretation can be achieved didactically or through self-directed learning. This study aimed to compare the effectiveness of expert-led didactic with self-directed audiovisual teaching for training inexperienced analysts on how to recognize mucosal barrier defects on endoscope-based CLE (eCLE). MATERIALS AND METHODS This randomized controlled study involved trainee analysts who were taught how to recognize mucosal barrier defects on eCLE either didactically or through an audiovisual clip. After being trained, they evaluated 6 sets of 30 images. Image evaluation required the trainees to determine whether specific features of barrier dysfunction were present or not. Trainees in the didactic group engaged in peer discussion and received feedback after each set while this did not happen in the self-directed group. Accuracy, sensitivity, and specificity of both groups were compared. RESULTS Trainees in the didactic group achieved a higher overall accuracy (87.5 % vs 85.0 %, P = 0.002) and sensitivity (84.5 % vs 80.4 %, P = 0.002) compared to trainees in the self-directed group. Interobserver agreement was higher in the didactic group (k = 0.686, 95 % CI 0.680 - 0.691, P < 0.001) than in the self-directed group (k = 0.566, 95 % CI 0.559 - 0.573, P < 0.001). Confidence (OR 6.48, 95 % CI 5.35 - 7.84, P < 0.001) and good image quality (OR 2.58, 95 % CI 2.17 - 2.82, P < 0.001) were positive predictors of accuracy. CONCLUSION Expert-led didactic training is more effective than self-directed audiovisual training for teaching inexperienced analysts how to recognize mucosal barrier defects on eCLE.
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Affiliation(s)
- Roy Huynh
- Faculty of Medicine, UNSW Australia, Sydney, Australia,Gastroenterology and Liver Services, Bankstown-Lidcombe Hospital, Sydney, Australia
| | - Matthew Ip
- Faculty of Medicine, UNSW Australia, Sydney, Australia,Gastroenterology and Liver Services, Bankstown-Lidcombe Hospital, Sydney, Australia
| | - Jeff Chang
- Faculty of Medicine, UNSW Australia, Sydney, Australia,Gastroenterology and Liver Services, Bankstown-Lidcombe Hospital, Sydney, Australia,Gastroenterology and Liver Services, Concord Repatriation General Hospital, Sydney, Australia
| | - Craig Haifer
- Gastroenterology and Liver Services, Concord Repatriation General Hospital, Sydney, Australia
| | - Rupert W. Leong
- Faculty of Medicine, UNSW Australia, Sydney, Australia,Gastroenterology and Liver Services, Bankstown-Lidcombe Hospital, Sydney, Australia,Gastroenterology and Liver Services, Concord Repatriation General Hospital, Sydney, Australia,Australian School of Advanced Medicine, Macquarie University, Sydney, Australia,Corresponding author Professor Rupert Leong Gastroenterology and Liver ServicesBankstown-Lidcombe and Concord Hospitalc/o Concord Hospital Level 1 WestHospital RdConcord NSW 2137SydneyAustralia+61 2 97227752
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6
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Gregson EM, Bornschein J, Fitzgerald RC. Genetic progression of Barrett's oesophagus to oesophageal adenocarcinoma. Br J Cancer 2016; 115:403-10. [PMID: 27441494 PMCID: PMC4985359 DOI: 10.1038/bjc.2016.219] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/08/2016] [Accepted: 06/14/2016] [Indexed: 12/16/2022] Open
Abstract
Barrett's oesophagus (BE) is the premalignant condition associated with the development of oesophageal adenocarcinoma (OAC). Diagnostically, p53 immunohistochemistry remains the only biomarker recommended clinically to aid histopathological diagnosis. The emerging mutational profile of BE is one of highly heterogeneous lesions at the genomic level with many mutations already occurring in non-dysplastic tissue. As well as point mutations, larger scale copy-number changes appear to have a key role in the progression to OAC and clinically applicable assays for the reliable detection of aneuploidy will be important to incorporate into future clinical management of patients. For some patients, the transition to malignancy may occur rapidly through a genome-doubling event or chromosomal catastrophe, termed chromothripsis, and detecting these patients may prove especially difficult. Given the heterogeneous nature of this disease, sampling methods to overcome inherent bias from endoscopic biopsies coupled with the development of more objective biomarkers than the current reliance on histopathology will be required for risk stratification. The aim of this approach will be to spare low-risk patients unnecessary procedures, as well as to provide endoscopic therapy to the patients at highest risk, thereby avoiding the burden of incurable metastatic disease.
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Affiliation(s)
- Eleanor M Gregson
- MRC Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Biomedical Campus, Cambridge CB2 0XZ, UK
| | - Jan Bornschein
- MRC Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Biomedical Campus, Cambridge CB2 0XZ, UK
| | - Rebecca C Fitzgerald
- MRC Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Biomedical Campus, Cambridge CB2 0XZ, UK
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7
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Sturm MB, Wang TD. Emerging optical methods for surveillance of Barrett's oesophagus. Gut 2015; 64:1816-23. [PMID: 25975605 PMCID: PMC5019028 DOI: 10.1136/gutjnl-2013-306706] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 04/17/2015] [Indexed: 12/20/2022]
Abstract
The rapid rise in incidence of oesophageal adenocarcinoma has motivated the need for improved methods for surveillance of Barrett's oesophagus. Early neoplasia is flat in morphology and patchy in distribution and is difficult to detect with conventional white light endoscopy (WLE). Light offers numerous advantages for rapidly visualising the oesophagus, and advanced optical methods are being developed for wide-field and cross-sectional imaging to guide tissue biopsy and stage early neoplasia, respectively. We review key features of these promising methods and address their potential to improve detection of Barrett's neoplasia. The clinical performance of key advanced imaging technologies is reviewed, including (1) wide-field methods, such as high-definition WLE, chromoendoscopy, narrow-band imaging, autofluorescence and trimodal imaging and (2) cross-sectional techniques, such as optical coherence tomography, optical frequency domain imaging and confocal laser endomicroscopy. Some of these instruments are being adapted for molecular imaging to detect specific biological targets that are overexpressed in Barrett's neoplasia. Gene expression profiles are being used to identify early targets that appear before morphological changes can be visualised with white light. These targets are detected in vivo using exogenous probes, such as lectins, peptides, antibodies, affibodies and activatable enzymes that are labelled with fluorescence dyes to produce high contrast images. This emerging approach has potential to provide a 'red flag' to identify regions of premalignant mucosa, outline disease margins and guide therapy based on the underlying molecular mechanisms of cancer progression.
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Affiliation(s)
- Matthew B Sturm
- Division of Gastroenterology Departments of Medicine, Biomedical Engineering, Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, USA,Department of Internal Medicine, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Thomas D Wang
- Division of Gastroenterology Departments of Medicine, Biomedical Engineering, Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, USA,Departments of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA,Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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8
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Dolak W, Kiesewetter B, Müllauer L, Mayerhoefer M, Troch M, Trauner M, Häfner M, Raderer M, Püspök A. A pilot study of confocal laser endomicroscopy for diagnosing gastrointestinal mucosa-associated lymphoid tissue (MALT) lymphoma. Surg Endosc 2015; 30:2879-85. [PMID: 26487230 DOI: 10.1007/s00464-015-4572-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 09/19/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND Patients with gastrointestinal mucosa-associated lymphoid tissue (MALT) lymphoma require lifelong endoscopic follow-up. This study aimed to establish and evaluate confocal laser endomicroscopy (CLE) criteria for gastrointestinal MALT lymphoma. METHODS This prospective trial was conducted after IRB approval at the Medical University of Vienna. Twenty-four consecutive patients (14 males and 10 females, median age 65 years) referred for staging or follow-up of (former) gastrointestinal MALT lymphoma underwent endosonography (EUS) and CLE including white light endoscopy (WLE) and conventional biopsy sampling of the upper gastrointestinal tract. CLE criteria of the disease were based on the first five patients with histologically proven MALT lymphoma. All CLE datasets were reviewed separately by two CLE experts. The diagnostic modalities were compared using conventional histology as the gold standard. RESULTS Sixty-two percentages had a positive diagnosis of MALT lymphoma based on histology. The sensitivity was 80 % for EUS (0.51-0.95), 100 % for WLE (0.75-1) and 93 % for CLE (0.66-1); the specificity was 67 % for EUS (0.31-0.91), 23 % for WLE (0.04-0.60) and 100 % for CLE (0.63-1). The agreement with histology was moderate for EUS (kappa 0.47, p = 0.02), fair for WLE (kappa 0.26, p = 0.06) and almost perfect for CLE (kappa 0.91, p < 0.01). Expert evaluation identified all but one case of MALT lymphoma with excellent interobserver agreement (kappa 0.89, p < 0.01). In the case missed by CLE, MALT lymphoma involvement was restricted to deep tissue structures. CONCLUSIONS Despite minor technical limitations, CLE is a promising alternative to conventional biopsy sampling in patients with gastrointestinal MALT lymphoma. CLINICALTRIALS. GOV NUMBER NCT01583699.
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Affiliation(s)
- Werner Dolak
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
| | - Barbara Kiesewetter
- Division of Oncology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Leonhard Müllauer
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Marius Mayerhoefer
- Department of Radiology and Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Marlene Troch
- Division of Oncology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Michael Häfner
- Department of Internal Medicine, St. Elisabeth Hospital Vienna, Vienna, Austria
| | - Markus Raderer
- Division of Oncology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Andreas Püspök
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
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Wang KK, Carr-Locke DL, Singh SK, Neumann H, Bertani H, Galmiche JP, Arsenescu RI, Caillol F, Chang KJ, Chaussade S, Coron E, Costamagna G, Dlugosz A, Ian Gan S, Giovannini M, Gress FG, Haluszka O, Ho KY, Kahaleh M, Konda VJ, Prat F, Shah RJ, Sharma P, Slivka A, Wolfsen HC, Zfass A. Use of probe-based confocal laser endomicroscopy (pCLE) in gastrointestinal applications. A consensus report based on clinical evidence. United European Gastroenterol J 2015; 3:230-54. [PMID: 26137298 DOI: 10.1177/2050640614566066] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 11/17/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Probe-based confocal laser endomicroscopy (pCLE) provides microscopic imaging during an endoscopic procedure. Its introduction as a standard modality in gastroenterology has brought significant progress in management strategies, affecting many aspects of clinical care and requiring standardisation of practice and training. OBJECTIVE This study aimed to provide guidance on the standardisation of its practice and training in Barrett's oesophagus, biliary strictures, colorectal lesions and inflammatory bowel diseases. METHODS Initial statements were developed by five group leaders, based on the available clinical evidence. These statements were then voted and edited by the 26 participants, using a modified Delphi approach. After two rounds of votes, statements were validated if the threshold of agreement was higher than 75%. RESULTS Twenty-six experts participated and, among a total of 77 statements, 61 were adopted (79%) and 16 were rejected (21%). The adoption of each statement was justified by the grade of evidence. CONCLUSION pCLE should be used to enhance the diagnostic arsenal in the evaluation of these indications, by providing microscopic information which improves the diagnostic performance of the physician. In order actually to implement this technology in the clinical routine, and to ensure good practice, standardised initial and continuing institutional training programmes should be established.
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Affiliation(s)
- Kenneth K Wang
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - David L Carr-Locke
- Division of Digestive Diseases, Beth Israel Medical Center, New York City, NY, USA
| | - Satish K Singh
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Helmut Neumann
- The Ludwig Demling Endoscopy Center of Excellence, Erlangen, Germany
| | - Helga Bertani
- Endoscopy Unit, Nuovo Ospedale Civile S. Agostino Estense, Modena, Italy
| | | | | | - Fabrice Caillol
- Endoscopy Unit, Paoli-Calmettes Institute, Marseille, France
| | - Kenneth J Chang
- H.H. Chao Comprehensive Digestive Disease Center, University of California, Irvine, CA, USA
| | - Stanislas Chaussade
- Division of Gastroenterology, Hopital Cochin and Paris-Descartes University, Paris, France
| | - Emmanuel Coron
- Division of Gastroenterology and Hepatology, Nantes CHU, Rouen, France
| | | | - Aldona Dlugosz
- Karolinska Institutet, Department of Medicine, Division of Gastroenterology and Hepatology, Karolinska University Hospital, Stockholm, Sweden
| | - S Ian Gan
- Digestive Disease Institute, Virginia Mason Medical Center, Seattle, WA, USA
| | - Marc Giovannini
- Endoscopy Unit, Paoli-Calmettes Institute, Marseille, France
| | - Frank G Gress
- Division of Digestive and Liver disease, Columbia University Medical Center, New York City, NY, USA
| | - Oleh Haluszka
- Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Khek Y Ho
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Michel Kahaleh
- Division of Gastroenterology and Hepatology, Weill Cornell Medical College, New York City, NY, USA
| | - Vani J Konda
- Center for Endoscopic Research and Therapeutics, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Frederic Prat
- Division of Gastroenterology, Hopital Cochin and Paris-Descartes University, Paris, France
| | - Raj J Shah
- University of Colorado School of Medicine, Aurora, CO, USA
| | - Prateek Sharma
- Department of Gastroenterology and Hepatology, Veterans Affairs Medical Center, Kansas City, MI, USA ; Department of Gastroenterology and Hepatology, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Adam Slivka
- Division of Gastroenterology & Hepatology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Alvin Zfass
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University Medical Center, Richmond, VA, USA
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10
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Robles LY, Singh S, Fisichella PM. Emerging enhanced imaging technologies of the esophagus: spectroscopy, confocal laser endomicroscopy, and optical coherence tomography. J Surg Res 2015; 195:502-14. [PMID: 25819772 DOI: 10.1016/j.jss.2015.02.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/04/2015] [Accepted: 02/18/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Despite advances in diagnoses and therapy, esophageal adenocarcinoma remains a highly lethal neoplasm. Hence, a great interest has been placed in detecting early lesions and in the detection of Barrett esophagus (BE). Advanced imaging technologies of the esophagus have then been developed with the aim of improving biopsy sensitivity and detection of preplastic and neoplastic cells. The purpose of this article was to review emerging imaging technologies for esophageal pathology, spectroscopy, confocal laser endomicroscopy (CLE), and optical coherence tomography (OCT). METHODS We conducted a PubMed search using the search string "esophagus or esophageal or oesophageal or oesophagus" and "Barrett or esophageal neoplasm" and "spectroscopy or optical spectroscopy" and "confocal laser endomicroscopy" and "confocal microscopy" and "optical coherence tomography." The first and senior author separately reviewed all articles. Our search identified: 19 in vivo studies with spectroscopy that accounted for 1021 patients and 4 ex vivo studies; 14 clinical CLE in vivo studies that accounted for 941 patients and 1 ex vivo study with 13 patients; and 17 clinical OCT in vivo studies that accounted for 773 patients and 2 ex vivo studies. RESULTS Human studies using spectroscopy had a very high sensitivity and specificity for the detection of BE. CLE showed a high interobserver agreement in diagnosing esophageal pathology and an accuracy of predicting neoplasia. We also found several clinical studies that reported excellent diagnostic sensitivity and specificity for the detection of BE using OCT. CONCLUSIONS Advanced imaging technology for the detection of esophageal lesions is a promising field that aims to improve the detection of early esophageal lesions. Although advancing imaging techniques improve diagnostic sensitivities and specificities, their integration into diagnostic protocols has yet to be perfected.
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Affiliation(s)
| | - Satish Singh
- Division of Gastroenterology, Boston VA Healthcare System, Boston University, Boston, Massachusetts
| | - Piero Marco Fisichella
- Department of Surgery, Boston VA Healthcare System, Harvard Medical School, Boston, Massachusetts.
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11
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Abbaci M, Breuskin I, Casiraghi O, De Leeuw F, Ferchiou M, Temam S, Laplace-Builhé C. Confocal laser endomicroscopy for non-invasive head and neck cancer imaging: A comprehensive review. Oral Oncol 2014; 50:711-6. [DOI: 10.1016/j.oraloncology.2014.05.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/09/2014] [Accepted: 05/11/2014] [Indexed: 01/14/2023]
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12
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Choi KS, Jung HY. Confocal laser endomicroscopy and molecular imaging in barrett esophagus and stomach. Clin Endosc 2014; 47:23-30. [PMID: 24570880 PMCID: PMC3928487 DOI: 10.5946/ce.2014.47.1.23] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 12/10/2013] [Indexed: 12/20/2022] Open
Abstract
Detection of premalignant lesions in the upper gastrointestinal tract may facilitate endoscopic treatment and improve survival. Despite technological advances in white light endoscopy, its ability to detect premalignant lesions remains limited. Early detection could be improved by using advanced endoscopic imaging techniques, such as magnification endoscopy, narrow band imaging, i-scanning, flexible spectral imaging color enhancement, autofluorescence imaging, and confocal laser endomicroscopy (CLE), as these techniques may increase the rate of detection of mucosal abnormalities and allow optical diagnosis. The present review focuses on advanced endoscopic imaging techniques based on the use of CLE for diagnosing premalignant lesions in Barrett esophagus and stomach.
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Affiliation(s)
- Kwi-Sook Choi
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hwoon-Yong Jung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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