---
title: Barrett’s & Dysplasia Detection| CDX Diagnostics Resources
description: Explore the WATS3D resource page for clinical studies, case reports, & educational materials on AI-powered 3D tissue analysis for early cancer detection
---
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# Resources
Additional information to support your integration and use of WATS³ᴰ, which includes: testimonials, reference materials and brochures, and a video library.
- Published Studies
- ASGE Guidelines
- Case Studies
- Testimonials
- Training
- Videos
- Articles About WATS3D
- Practice Materials
- Publication & Abstract Update
[
Videos
### iGIE Post-Ablation Study Author Interview
Dr. Neil Sharma interviews the authors of December 2022 post-ablation study in iGIE. F. Scott Corbett, Robert D. Odze, Matthew J. McKinley
](https://vimeo.com/827767662)
[ Published Studies
### Benefit of Adjunctive Wide Area Transepithelial Sampling with 3-Dimensional Computer-Assisted Analysis Plus Forceps Biopsy Based on Barrett’s Esophagus Segment Length
Arvind J. Trindade, MD, Robert D. Odze, MD, FRCPc, Michael S. Smith, MD, MBA, Vivek Kaul, MD, Gastrointestinal Endoscopy 2023 (Journal Pre-proof)
](https://doi.org/10.1016/j.gie.2023.03.032)
[ Published Studies
### Utility of wide-area transepithelial sampling with 3-dimensional computer-assisted analysis as an adjunct to forceps biopsy sampling in the surveillance of patients with Barrett’s esophagus after endoscopic eradication therapy
F. Scott Corbett, Robert D. Odze, Matthew J. McKinley. IGIE December 2022
](https://doi.org/10.1016/j.igie.2022.10.011)
[ Published Studies
### High rate of missed Barrett’s esophagus when screening with forceps biopsies
Mendel E. Singer, Robert D. Odze, Esophagus July 2022
](https://link.springer.com/article/10.1007/s10388-022-00943-4)
[ Published Studies
### Multicenter randomized controlled trial comparing forceps biopsies to wide-area transepithelial sampling brush for detecting intestinal metaplasia and dysplasia during routine upper endoscopy
Steven DeMeester, Chris Smith, Paul Severson, Andrew Loveitt, Blair Jobe, Philip Woodworth, Dennis Wilcox, Christy Dunst. Gastrointestinal Endoscopy June 2022
](https://doi.org/10.1016/j.gie.2021.11.044)
[ Published Studies
### Progression of Barrett’s esophagus, crypt dysplasia, and low-grade dysplasia diagnosed by WATS3D: a retrospective analysis
Nicholas J. Shaheen, Michael S. Smith, Robert D. Odze. Gastrointestinal Endoscopy March 2022
](https://doi.org/10.1016/j.gie.2021.09.014)
[ Published Studies
### Retrospective, observational, cross-sectional study of detection of recurrent Barrett’s esophagus and dysplasia in post-ablation patients with adjunctive use of wide-area transepithelial sample (WATS-3D)
Hala Fatima, Maryiam Wajid, Nour Hamade, Yan Han, William Kessler, John Dewitt, Douglas Rex, Thomas Imperiale. Annals of Gastroenterology, January 2022
](http://www.annalsgastro.gr/files/journals/1/earlyview/2022/ev-02-2022-08-AG_6397-0693.pdf)
[ Published Studies
### WATS3D versus forceps biopsy in screening for Barrett's esophagus: experience in community endoscopy centers
Yasmine Hussein Agha, Sachin Srinivasan, Jeffrey Hyder, Chelsea Wuthnow, Ali Taleb, Nathan Toftelanda, William Kilgorea, William Salyers. Annals of Gastroenterology (2021) 34, 1-5
](https://doi.org/10.20524/aog.2020.0564)
[ Published Studies
### Clinical utility of wide-area transepithelial sampling with three-dimensional computer-assisted analysis (WATS3D) in identifying Barrett’s esophagus and associated neoplasia
Vivek Kaul, Seth Gross, F Scott Corbett, Zubair Malik, Michael S Smith, Christina Tofani, Anthony Infantolino. Diseases of the Esophagus, July, 01 2020
](https://doi.org/10.1093/dote/doaa069)
[ Published Studies
### Wide Area Transepithelial Sampling with Computer-Assisted Analysis (WATS3D) Is Cost-Effective in Barrett’s Esophagus Screening
Singer ME. Gross S, Kaul V, Smith MS. 449. American Journal of Gastroenterology: 2019;114: S262.
](https://doi.org/10.1007/s10620-020-06412-1)
[
Published Studies
### Wide-area transepithelial sampling with computer-assisted 3-dimensional analysis (WATS) markedly improves detection of esophageal dysplasia and Barrett's esophagus: analysis from a prospective multicenter community-based study
M. S. Smith, E. Ikonomi, R. Bhuta, N. Iorio, R. D. Kataria, V. Kaul, S. A. Gross, the USCollaborative WATS Study Group
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Increased%20detection%20of%20Barrett%E2%80%99s%20esophagus%20and%20esophageal%20dysplasia%20with%20adjunctive%20use%20of%20wide-area%20transepithelial%20sample%20with%20three-dimensional%20computer-assisted%20analysis%20(WATS).pdf?hsLang=en)
[
Published Studies
### Increased Detection of Barrett's Esophagus-associated Neoplasia Using Wide-Area Trans-epithelial Sampling: A Multicenter, Prospective, Randomized Trial
Prashanth R. Vennalaganti, M.D., Vivek Kaul, M.D., Kenneth K. Wang, M.D., Gary W. Falk, M.D., MS, Nicholas J. Shaheen, M.D., Anthony Infantolino, M.D., David A. Johnson, M.D., Glenn Eisen, M.D., MPH, Lauren B. Gerson, M.D., Michael S. Smith, M.D., Prasad G. Iyer, M.D., MS., MPH, Charles J. Lightdale, M.D., Felice Schnoll-Sussman, M.D., Neil Gupta, M.D., MPH., Seth A. Gross, M.D., Julian Abrams, M.D., MPH, Gregory B. Haber, M.D., Ram Chuttani, M.D., Douglas K. Pleskow, M.D., Shivangi Kothari, M.D., John R. Goldblum, M.D., Yaxia Zhang, M.D., Prateek Sharma, M.D.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Increased%20detection%20of%20Barretts%20esophagus-associated%20neoplasia%20using%20Wide-Area%20Trans-epithelial%20Sampling-%20A%20multicenter%2c%20prospective%2c%20randomized%20trial.pdf?hsLang=en)
[
Published Studies
### Increased detection of Barrett's esophagus and esophageal dysplasia with adjunctive use of wide-area transepithelial sample with three-dimensional computer-assisted analysis (WATS)
Seth A Gross, Michael S Smith and Vivek Kaul; the US Collaborative WATS3D Study Group
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Increased%20detection%20of%20Barrett%E2%80%99s%20esophagus%20and%20esophageal%20dysplasia%20with%20adjunctive%20use%20of%20wide-area%20transepithelial%20sample%20with%20three-dimensional%20computer-assisted%20analysis%20(WATS).pdf?hsLang=en)
[
Published Studies
### Inter-Observer Agreement among Pathologists Using Wide-Area Transepithelial Sampling With Computer-Assisted Analysis in Patients With Barrett's Esophagus
Prashanth R. Vennalaganti, MD , Vijay Naag Kanakadandi, MD, Seth A. Gross,MD, Sravanthi Parasa, MD, MPH, Kenneth K. Wang, MD, Neil Gupta , MD, MPH and Prateek Sharma. Am J Gastroenterol, 28 April 2015
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Inter-Observer%20agreement%20among%20pathologists%20using%20Wide-Area%20Transepithelial%20Sampling%20with%20computer-assisted%20analysis%20in%20patients%20with%20Barretts%20esophagus.pdf?hsLang=en)
[
Published Studies
### Computer-Assisted Brush-Biopsy Analysis for the Detection of Dysplasia in a High-Risk Barrett's Esophagus Surveillance Population
Anandasabapathy S, Sontag S, Graham DY, Frist S, Bratton J, Harpaz N, Waye JD. Dig Dis Sci. 2011 Mar;56(3):761-6. Epub 2010 Oct 27.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Computer-assisted%20brushbiopsy%20analysis%20for%20the%20detection%20of%20dysplasia%20in%20a%20high-risk%20Barretts%20esophagus%20surveillance%20population.pdf?hsLang=en)
[
Published Studies
### Computer-Assisted Analysis of Abrasive Transepithelial Brush Biopsies Increases the Effectiveness of Esophageal Screening:A Multicenter Prospective Clinical Trial by the EndoCDx Collaborative Group
Johanson JF, Frakes J, Eisen D; EndoCDx Collaborative Group. Dig Dis Sci. 2011 Mar;56(3):767-72. Epub 2010 Dec 4.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Computer-assisted%20analysis%20of%20abrasive%20transepithelial%20brush%20biopsies%20increases%20the%20effectiveness%20of%20esophageal%20screening.pdf?hsLang=en)
[
ASGE Guidelines
### ASGE Guidelines 2020
](https://www.cdxdiagnostics.com/hubfs/assets/resources/2020%20ASGE%20guideline%20on%20screening%20and%20surveillance%20of%20Barrett%E2%80%99s%20esophagus.pdf?hsLang=en)
[
Case Studies
### WATS3D Finds HGD, Missed by Foreceps
Physician's Perspective
](https://vimeo.com/319020369)
[
Case Studies
### The Identification of Barrett's Esophagus and Low Grade Dysplasia with WATS3D and Missed by Forceps Biopsy
68 year-old female with a chronic history of achalasia that had been treated with pneumatic dilation.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Case%20Study%207.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Barrett's Esophagus Missed by Forceps Biopsies
47-year-old male presented for upper endoscopy to evaluate symptoms of chronic heartburn.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Case%20Study%206.pdf?hsLang=en)
[
Case Studies
### Recurrent Adenocarcinoma Identified by WATS3D and Missed by Forceps Biopsy
65 year-old female was diagnosed with an 8 cm obstructing esophageal adenocarcinoma.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Case%20Study%202.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Crypt Dysplasia that was Missed by Forceps Biopsy
17-year-old male with a known history of long segment non-dysplastic Barrett's esophagus and dysphagia.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20Crypt%20Dysplasia%20Missed%20by%20Forceps.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Dysplasia that was Missed in a Patient with Chronic GERD
59-year-old obese male with a 30+ year GERD history.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-WATS3D%20Detects%20Dysplasia%20Missed%20in%20Chronic%20GERD%20Patient.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Barrett's Esophagus with Crypt Dysplasia in a GERD Patient
54-year-old male with history of GERD and abdominal pain.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20Barretts%20Esophagus%20with%20Crypt%20Dysplasia.pdf?hsLang=en)
[
Case Studies
### WATS3D Identifies Low-Grade Dysplasia in a Barrett's Esophagus Patient
67-year-old male with a history of Barrett's esophagus presented for an EGD for surveillance
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20Low-Grade%20Dysplasia%20in%20a%20Barretts.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Barrett's Esophagus and Focal High-Grade/Low-GradeDysplasia that Forceps Biopsy Missed in a Post-Treatment Patient
58-year-old male with newly diagnosed Barrett's esophagus with high-grade dysplasia.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20Focal%20HGD-LGD%20in%20Post-Treatment%20Patient.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Barrett's Esophagus and Crypt Dysplasia that wereUndetected by Forceps Biopsy
72-year- old male bariatric patient with a history of reflux and lifetime history of anemia.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20WATS3D%20Detects%20Barretts%20Esophagus%20and%20Crypt%20Dysplasia.pdf?hsLang=en)
[
Case Studies
### WATS3D Detection of Crypt Dysplasia Allows for Proper Patient Follow-up
80-year-old Caucasian male with a long history of esophageal disease and reflux procedures.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20Detection%20of%20Crypt%20Dysplasia%20Allows%20for%20Proper%20Patient%20Follow-up.pdf?hsLang=en)
[
Case Studies
### WATS3D Identifies Crypt Dysplasia in a Patient with Barrett's Esophagus
80-year-old male with history of heartburn and Barrett's esophagus.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20WATS3D%20Identifies%20Crypt%20Dysplasia.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Barrett's Esophagus and Focal High Grade/Low GradeDysplasia in a GERD Patient
61-year-old male with history of GERD and a previous anti-reflux procedure.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20Focal%20High%20Grade-Low%20Grade.pdf?hsLang=en)
[
Case Studies
### WATS3D Detects Additional Disease in All Specimens Taken from a Patientwith Long Segment Barrett's Esophagus
61-year-old male with known history of Barrett's esophagus without dysplasia.
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Clinical%20Spotlights%20-%20WATS3D%20Detects%20Additional%20Disease%20in%20Long%20Segment.pdf?hsLang=en)
[
Videos
### How WATS3D Works Animation
](https://vimeo.com/624996599)
[
Videos
### WATS3D Professional Overview
](https://vimeo.com/304628068)
[
Testimonials
### You Only Have One Shot
Dr. Dan Lister talks about WATS3D and the initial index upper endoscopy.
](https://vimeo.com/907886273)
[
Testimonials
### WATS3D: Changing BE Management
Dr. Neil Sharma discusses WATS3D and it's impact on how he manages patients with Barrett's.
](https://vimeo.com/866440988)
[
Testimonials
### WATS3D: A Surgeons Perspective
Dr. Dan Lister discusses the value of WATS3D from a surgeon's perspective.
](https://vimeo.com/907886507)
[
Testimonials
### You have to get it right the first time
Vikram Budhraja, MD
](https://vimeo.com/910588601)
[3D can't take a lot of time..."" />
Testimonials
### "WATS3D can't take a lot of time..."
John Lipham, M.D.
](https://vimeo.com/720387888)
[
Testimonials
### Time Efficiency of WATS3D
Dan Lister MD FACS FAFS
](https://vimeo.com/907886197)
[
Videos
### WATS3D Helps Patient "Dodge a Bullet"
Patient perspective
](https://vimeo.com/331051586)
[
Testimonials
### "...(3D imaging showing the en face view of the gland) This is really revolutionary..."
Nicholas Shaheen, MD
](https://vimeo.com/345551580)
[
Testimonials
### "You can increase your diagnostic yield...why not do it to help prevent cancer in our patients..."
Charles J. Lightdale, MD
](https://vimeo.com/268435570)
[
Testimonials
### "Early diagnosis of dysplasia changes the playing field entirely"
Robert A. Shultz, DO
](https://vimeo.com/309961055)
[3D has really helped us..."" />
Testimonials
### "WATS3D has really helped us..."
Anthony Infantolino, MD, FACP, FACG, AGAF, FASGE
](https://vimeo.com/345995350)
[
Testimonials
### "Doing right for my patients"
Joseph McKinley, MD
](https://vimeo.com/268435670)
[
Videos
### 2 Patients Share Their Stories
WATS3D makes a difference in the lives of patients
](https://vimeo.com/347592791)
[
Videos
### WATS3D Case 1 (5:55) - Dr Michael Smith
56-year old female patient with family history of esophageal cancer, referred for surveillance of short segment Barrett's Esophagus.
](https://vimeo.com/631089081)
[
Testimonials
### "On finding LGD, HGD & Dysplasia"
Kenneth Feuer, MD
](https://vimeo.com/268435493)
[
Testimonials
### "Peace of mind is worth a lot"
Robert A. Shultz, DO
](https://vimeo.com/309960885)
[
Testimonials
### "On finding Barrett's"
Joseph McKinley, MD
](https://vimeo.com/268435711)
[3D) Probably the most significant advance that we've seen as pathologists in the last 25 years"" />
Testimonials
### "(WATS3D) Probably the most significant advance that we've seen as pathologists in the last 25 years"
Robert D. Odze, M.D., FRCPc
](https://vimeo.com/345768334)
[3D"" />
Testimonials
### "No real time issues with WATS3D"
Michael Smith, MD
](https://vimeo.com/268436745)
[3D) We do have significantly higher detection of Barrett's esophagus"" />
Testimonials
### "(With WATS3D) We do have significantly higher detection of Barrett's esophagus"
Javier Sobrado, MD
](https://vimeo.com/268435756)
[
Testimonials
### "WATS gives me a much sharper tool to use to find the disease early and prevent the natural progression"
Howard Guss, DO
](https://vimeo.com/347170380)
[
Testimonials
### WATS3D for post-ablation
Charles Loewe, MD
](https://vimeo.com/268435600)
[
Testimonials
### "This has increased our yield in detecting precancerous changes Barrett's and dysplasia"
Scott Corbett, MD
](https://vimeo.com/268435472)
[
Testimonials
### "With WATS I can find dysplasia, which further supports the feeling I had that the patient needed to be treated"
Ali Lankarani, MD
](https://vimeo.com/268435527)
[
Articles About WATS3D
### The Role of Brush Biopsy in the Management of Barrett Esophagus
Michael S. Smith, MD, MBA
](https://www.cdxdiagnostics.com/hubfs/assets/resources/MSmith-Interview-Article_Role-of-WATS-in-Management-of-BE.pdf?hsLang=en)
[
Articles About WATS3D
### Community Physician Profile
Interview with Mark J. Silversmith, MD
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Community%20Physician%20Profile.pdf?hsLang=en)
[
Practice Materials
### WATS3D Professional Brochure
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D%20Breakthrough%20Brochure.pdf?hsLang=en)
[
Practice Materials
### WATS3D Quick Reference Guide Poster
](https://www.cdxdiagnostics.com/hubfs/downloads/WATS3D_Quick%20Reference%20Guide_8.5x11.pdf?hsLang=en)
[
Practice Materials
### WATS3D Patient Brochure
](https://www.cdxdiagnostics.com/hubfs/assets/resources/GI_0480_PatientBrochure11.15.22.pdf?hsLang=en)
[
Practice Materials
### Esophageal Cancer Awareness Month Office Poster
](https://www.cdxdiagnostics.com/hubfs/assets/resources/GI_04446B_ECAM_Poster3.20.23.pdf?hsLang=en)
[
Practice Materials
### Esophageal Cancer Awareness Month Counter Poster
](https://www.cdxdiagnostics.com/hubfs/assets/resources/GI_0427A_ECAM%20Foam%20poster2023.pdf?hsLang=en)
[
Practice Materials
### WATS3D Pathology Partnership Brochure
](https://www.cdxdiagnostics.com/hubfs/assets/resources/WATS3D_Pathology_Partnership_Brochure.pdf?hsLang=en)
[ Publication & Abstract Update
### Multi-Center Randomized Trial Comparing Standard Forceps Biopsies to Wide-Area Transepithelial Sampling Brush for Finding Intestinal Metaplasia and Dysplasia in the Esophagus and Gastroesophageal Junction
**DeMeester S, Smith C, Severson P, et al. 353. American Journal of Gastroenterology 2019;114:S207-S208.**
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Multi-Center%20Randomized%20Trial%20Comparing%20Standard%20Forceps%20Biopsies%20to%20Wide-Area%20Transepithelial%20Sampling%20Brush%20for%20Finding%20Intestinal%20Metaplasia%20and%20Dysplasia%20in%20the%20Esophagus%20and%20Gastroesophageal%20Junction.pdf?hsLang=en)
[ Publication & Abstract Update
### Adjunctive Yield of Wide-Area Transepithelial Sampling for Dysplasia Detection After Advanced Imaging and Random Biopsies in Barrett's Esophagus
**Raphael KL, Stewart M, Sejpal DV, et al. Clin Transl Gastroenterol 2019;10:e00107.**
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Adjunctive%20Yield%20of%20Wide-Area%20Transepithelial%20Sampling%20for%20Dysplasia%20Detection%20After%20Advanced%20Imaging%20and%20Random%20Biopsies%20in%20Barretts%20Esophagus.pdf?hsLang=en)
[ Publication & Abstract Update
### High Clinical Impact of Wide Area Transepithelial Sampling (WATS) Positive - Forceps Biopsy Negative Diagnoses of Barrett's Esophagus and Associated Dysplasia: A Retrospective Cohort Study of 423 Patients
**Kaul V, Gross S, Corbett SC, Infantolino A, Tofani C. 114. American Journal of Gastroenterology: 2019;114: S252.**
** **
** **
](https://www.cdxdiagnostics.com/hubfs/assets/resources/High%20Clinical%20Impact%20of%20Wide%20Area%20Transepithelial%20Sampling%20(WATS)%20Positive%20-%20Forceps%20Biopsy%20Negative%20Diagnoses%20of%20Barretts%20Esophagus%20and%20Associated%20Dysplasia.pdf?hsLang=en)
[ Publication & Abstract Update
### Cost-Effectiveness of Adjunctive Wide Area Transepithelial Sampling With Computer-Assisted Analysis in Screening for Barrett's Esophagus
**Singer ME. Gross S, Kaul V, Smith MS. 449. American Journal of Gastroenterology: 2019;114: S262. **
** **
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Cost-Effectiveness%20of%20Adjunctive%20Wide%20Area%20Transepithelial%20Sampling%20With%20Computer-Assisted%20Analysis%20in%20Screening%20for%20Barretts%20Esophagus.pdf?hsLang=en)
[ Publication & Abstract Update
### Progression of Barrett's esophagus (BE) and dysplasia detected by wide area transepithelial sampling with computer-assisted 3D analysis (WATS3D) confirms the clinical significance of crypt dysplasia
**Shaheen, N.J., Smith, M., Goldblum, J. et al. Am J Gastroenterol**. **2018**;**113**:**s172.**
** **
** **
** **
](https://www.cdxdiagnostics.com/hubfs/assets/resources/Progression%20of%20Barrett%E2%80%99s%20esophagus%20(BE)%20and%20dysplasia%20detected%20by%20wide%20area%20transepithelial%20sampling%20with%20computer-assisted%203D%20analysis%20(WATS3D)%20confirms%20the%20clinical%20significance%20of%20crypt%20dysplasia.pdf?hsLang=en)
[
Training
### Introduction to WATS3D (:50)
](https://vimeo.com/199701401)
[
Training
### WATS3D Quick Video Reference (1:40)
](https://vimeo.com/893737282)
[
Training
### WATS3D Sampling Techniques Overview (:47)
](https://vimeo.com/435768205)
[
Training
### WATS3D Case 1 - Dr Michael Smith (5:55)
56-year old female patient with family history of esophageal cancer, referred for surveillance of short segment Barrett's Esophagus.
](https://vimeo.com/631089081)
[
Training
### WATS3D Case - 2 Techniques (10:05)
Surveillance of 83-year old female patient with Barrett's Esophagus, post-ablation of low-grade dysplasia. 2 different techniques are demonstrated.
](hhttps://vimeo.com/631301433)
[
Training
### WATS3D Short Segment Sampling Overview (1:18)
](https://vimeo.com/397254026)
[
Videos
### WATS3D Patient Segment on Lifetime Television
](https://vimeo.com/417312906)
[
Videos Practice Materials
### WATS3D Patient Overview
](https://vimeo.com/183351576)
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