Endoscopic Ultrasound (EUS)
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Endoscopic Ultrasound
Endoscopic ultrasound (EUS) combines ultrasound and conventional endoscopy technologies to see beyond the walls of the gastrointestinal tract. EUS allows endoscopists to visualize all five layers of the GI tract, as well as surrounding tissue and organs.
Olympus offers a full product portfolio of EUS processors, echoendoscopes, miniature probes and needles to meet physician needs and preferences. These products can support diagnostic, therapeutic and interventional applications such as EUS-guided tissue acquisition, cyst drainage and biopsies of lesions/lymph nodes.
The Olympus® portfolio offers a variety of echoendoscopes and miniature probes, creating a total endosonography solution for a full range of minimally invasive applications.
The diagnostic radial array echoendoscope provides a 360°, cross-sectional view of the GI tract and is primarily used for screening. The curvilinear echoendoscopes are useful for therapeutic applications such as tissue sample collection, cyst drainage, biopsies of lesions/lymph nodes and injection for pain management.
In addition, the endoscopic ultrasound miniature probes generate 360° images in the near field for visualization of submucosal areas.
Visualization is key to accurately identifying tumors and tissue properties and boundaries. New and enhanced features available on Olympus® ultrasound processors are designed to improve visualization and assist in diagnostic, therapeutic, and interventional procedures, that may lead to improved quality of patient care.
Olympus offers a full line-up of ultrasound processors designed to meet and exceed the needs of gastroenterologists performing a wide range of EUS procedures.
Olympus offers a line-up of single-use FNB and FNA needles to help achieve procedural goals for endoscopic ultrasound in a variety of clinical settings.
The EZ Shot™ 3 Plus FNB needle offers access to lesions in difficult locations, enhanced echogenicity, and reduced puncture force in 19 G, 22 G, and 25 G configurations.1
The EZ Shot 3 FNA needle features the same ergonomic handle as the EZ Shot 3 Plus needle and is designed for smooth puncturability of even small target lesions, available in 19 G, 22 G and 25 G configurations to suit clinical preferences.5
EUS Procedure Risks:
Potential complications that may be associated with endoscopic ultrasound include, but are not limited to, the following: sore throat, infection, bleeding, perforation, and/or tumor seeding (when EUS-FNA or FNB is performed).
Products
At Olympus, we are committed to innovation. We deliver a comprehensive EUS solution, with a robust portfolio of EUS processors, echoendoscopes and devices.
Endoscopic Ultrasound is the difference between maybe and definitely.
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EUS Processor Risks:
High output and prolonged exposure to ultrasonic waves can adversely affect the internal tissues of the patient. Scan only for the minimum length of time necessary for the diagnosis, and at the lowest possible output. Improper care, installation, or use, can cause electric shocks, burns or other injuries. The ultrasound endoscope connected to this ultrasound center must never be applied directly to the heart as it could cause ventricular fibrillation or otherwise seriously affect the cardiac function of the patient. Never allow an EndoTherapy accessory or another ultrasound endoscope, applied to or near the heart, to come in contact with the ultrasound endoscope connected to this ultrasound center.
EUS Scope Risks:
Complications from use of the GF-UCT-180 may include, but are not limited to patient injury, bleeding, and/or perforation. Improper cleaning of an endoscope may result in patient infection. Balloons used with this instrument contain natural rubber latex that may cause allergic reactions. Do not use the balloon on a latex-sensitive patient.
EUS Needle Risks:
Complications from extra-luminal EUS guided FNA and FNB may include, but are not limited to infection, bleeding, perforation, and/or tumor seeding. Extra-luminal fine needle aspiration of cystic lesions has a higher risk of complication from infection and hemorrhage.
Endo-Hepatology
Traditionally, hepatologists refer liver patients to interventional radiology (IR) for liver imaging, biopsy, and management of portal hypertension.
Now, due to recent advancements in endoscopic ultrasound (EUS), liver imaging, shear wave measurement, contrast harmonic imaging, liver biopsy and portal pressure gradient measurement can be accomplished under EUS-guidance.
Thus, the integrated field has emerged as a result of the following7:
- Increased number of liver-focused endoscopic procedures
- Advances in endoscopic evaluation of the liver
- Advances in hepatology requiring liver assessment and histology
It would be most ideal if the assessment and treatment of liver disease and portal hypertension could be performed and assimilated by the primary liver/gastrointestinal (GI) specialist. We see this integration among specialists in esophageal and pancreaticobiliary diseases. It should be no different in hepatology.”
Dr. Kenneth J. Chang is a consultant to the Olympus Corporation, its subsidiaries and/or its affiliates.
Why is Endo-Hepatology important?
Diseases of the liver are becoming increasingly common in the US, with about 100 million individuals in the United States estimated to have Nonalcoholic Fatty Liver Disease (NAFLD).7 The importance of effective screening, diagnosis and treatment of these diseases will become more important in parallel.
NAFLD is one of the most common causes of liver disease in the U.S., affecting approximately 30% of the population.7
NASH is a severe progression of unmanaged NAFLD. Approximately 16% of people with NAFLD or 5% of the U.S. population is affected by NASH.7
Cirrhosis is irreversible scarring/damage to the liver. Approximately 5% to 12% of those affect by NASH will progress to cirrhosis.8
Participants of the course are instructed on the safe and effective use of Olympus® Endoscopic Ultrasound (EUS) equipment through didactics and live-case observations. This program includes advanced EUS applications related to liver disease.
Clinical Support
Clinical Application Specialists (CAS) are regionally located, experienced sonographers, dedicated to supporting you and your EUS practice. The CAS team offers on-site and virtual support for evaluations, in-services, installs, training, and procedures. Your CAS will show you how to operate your EUS equipment, offering helpful suggestions for image optimization. Our CAS Team is here to help you achieve success with Olympus® EUS products in an effort to allow you to help more patients.
Education
Designed to support you in your pursuit of excellence, Olympus Professional Education is a comprehensive platform of education and training experiences led by healthcare experts from around the world. Learning and training opportunities include hands-on courses, online learning, lectures and workshops, peer-to-peer training, accredited continuing education, and custom on-demand learning as well as a vast library of educational resources.
The Understanding Endoscopic Ultrasound: Technology and Clinical Applications program is designed to train nurses and technicians on the basics of endoscopic ultrasound. The course will cover the physics of ultrasound, GI ultrasound anatomy and ultrasound characteristics and terminology.
The Olympus® Global Professional Education Library is home to a selection of valuable educational materials including training videos, user guides, quick reference guides, IFUs, channel diagrams and more. The goal of Olympus Professional education is to enhance knowledge, inspire vision and offer solutions to healthcare professionals in the fields of gastroenterology, general surgery, pulmonology, bronchoscopy, urology, gynecology, otolaryngology, bariatrics, orthopedics and anesthesiology.
In collaboration with the American Society for Gastrointestinal Endoscopy (ASGE), our Diagnostic EUS Training course is focused on helping practicing endoscopists based in community hospitals achieve competency in Diagnostic EUS. The program’s online and hands-on curriculum covers the full spectrum of diagnostic EUS and FNA in four to six months in preparation for a proctorship with an EUS expert.
Resources
White Paper: Endoscopic Ultrasound Fine Needle Biopsy (EUS-FNB) Helps Diagnose Neuroendocrine Tumor of the Pancreas
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White Paper: Endoscopic Ultrasound Fine Needle Biopsy (EUS-FNB) Helps Diagnose Gastrointestinal Stromal Tumor (GIST) of Stomach
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Publication: Use of the EZ Shot 3 Plus in Endoscopic Ultrasound-Guided Biopsy Procedures
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White Paper: How to Optimize EUS Images
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White Paper: Current Measurement Parameters for EUS
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Watch videos with instructions on how to operate and clean your endoscopic ultrasound echoendoscopes, processors and devices.
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Visit Olympus’ pancreatic cancer website to help educate your patients and raise awareness on the importance of early detection. If your facility would like to be included in our Find a Facility resource tool, please contact EUS@olympus.com.
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Information on Olympus® OEM service of equipment and access to the Service Portal.
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OlympusConnect.com houses the full library of training support, including: Reprocessing Videos, Visual Reprocessing Guides, Instruction Manuals, Reprocessing Manuals, In-service Guides and more.
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Sign-up today to receive the latest news and information from Olympus about endoscopic ultrasound (EUS).
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For additional questions on service, technical assistance, professional education, or sales contact us directly.
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1. Data on file with Olympus as of June 8, 2018.
2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7554970/ Accessed August 2022.
3. https://onlinelibrary.wiley.com/doi/abs/10.1111/den.12148 Accessed August 2022.
4. Data on file with Olympus as of July 27, 2015.
5. Data on file with Olympus as of October 31, 2018.
6. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6106152/ Accessed March 2023.
7. https://pubmed.ncbi.nlm.nih.gov/32061595/ Accessed August 2022.
8. https://www.mayoclinic.org/diseases-conditions/nonalcoholic-fatty-liver-disease/symptoms-causes/syc-20354567#:~:text=Between%205%25%20and%2012%25%20of,NASH%20will%20progress%20to%20cirrhosis Accessed August 2022.
9. Data on file with Olympus as of November 16, 1998.
10. https://hce.fujifilm.com/fileadmin/hitachi-medical-eu/product-and-servies/ultrasound/technologies/Shear_Wave_Measurement__SWM_/MEDIX__Technical_Report__-_Development_of_Shear_Wave_Measurement_with_a_Reliability_Indicator.pdf Accessed March 2023.
11. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838723/ Accessed March 2023.
