• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

SAGES

Reimagining surgical care for a healthier world

  • Home
    • COVID-19 Annoucements
    • Search
    • SAGES Home
    • SAGES Foundation Home
  • About
    • Who is SAGES?
    • SAGES Mission Statement
    • Advocacy
    • Strategic Plan, 2020-2023
    • Committees
      • Request to Join a SAGES Committee
      • SAGES Board of Governors
      • Officers and Representatives of the Society
      • Committee Chairs and Co-Chairs
      • Full Committee Rosters
      • SAGES Past Presidents
    • Donate to the SAGES Foundation
    • Awards
      • George Berci Award
      • Pioneer in Surgical Endoscopy
      • Excellence In Clinical Care
      • International Ambassador
      • IRCAD Visiting Fellowship
      • Social Justice and Health Equity
      • Excellence in Community Surgery
      • Distinguished Service
      • Early Career Researcher
      • Researcher in Training
      • Jeff Ponsky Master Educator
      • Excellence in Medical Leadership
      • Barbara Berci Memorial Award
      • Brandeis Scholarship
      • Advocacy Summit
      • RAFT Annual Meeting Abstract Contest and Awards
  • Meetings
    • NBT Innovation Weekend
    • SAGES Annual Meeting
      • 2023 Scientific Session Call For Abstracts
      • 2023 Emerging Technology Call For Abstracts
    • CME Claim Form
    • Industry
      • Advertising Opportunities
      • Exhibit Opportunities
      • Sponsorship Opportunities
    • Future Meetings
    • Past Meetings
      • SAGES 2022
      • SAGES 2021
    • Related Meetings Calendar
  • Join SAGES!
    • Membership Benefits
    • Membership Applications
      • Active Membership
      • Affiliate Membership
      • Associate Active Membership
      • Candidate Membership
      • International Membership
      • Medical Student Membership
    • Member News
      • Member Spotlight
      • Give the Gift of SAGES Membership
  • Patients
    • Healthy Sooner – Patient Information for Minimally Invasive Surgery
    • Patient Information Brochures
    • Choosing Wisely – An Initiative of the ABIM Foundation
    • All in the Recovery: Colorectal Cancer Alliance
    • Find a SAGES Member
  • Publications
    • SAGES Stories Podcast
    • SAGES Clinical / Practice / Training Guidelines, Statements, and Standards of Practice
    • Patient Information Brochures
    • TAVAC – Technology and Value Assessments
    • Surgical Endoscopy and Other Journal Information
    • SAGES Manuals
    • SCOPE – The SAGES Newsletter
    • COVID-19 Annoucements
    • Troubleshooting Guides
  • Education
    • OpiVoid.org
    • SAGES.TV Video Library
    • Safe Cholecystectomy Program
      • Safe Cholecystectomy Didactic Modules
    • Masters Program
      • SAGES Facebook Program Collaboratives
      • Acute Care Surgery
      • Bariatric
      • Biliary
      • Colorectal
      • Flexible Endoscopy (upper or lower)
      • Foregut
      • Hernia
      • Robotics
    • Educational Opportunities
    • HPB/Solid Organ Program
    • Courses for Residents
      • Advanced Courses
      • Basic Courses
    • Video Based Assessments (VBA)
    • Robotics Fellows Course
    • MIS Fellows Course
    • Facebook Livestreams
    • Free Webinars For Residents
    • SMART Enhanced Recovery Program
    • SAGES OR SAFETY Video
    • SAGES at Cine-Med
      • SAGES Top 21 MIS Procedures
      • SAGES Pearls
      • SAGES Flexible Endoscopy 101
      • SAGES Tips & Tricks of the Top 21
  • Opportunities
    • NEW-Area of Concentrated Training Seal (ACT)-Advanced Flexible Endoscopy-Coming Soon!
    • SAGES Fellowship Certification for Advanced GI MIS and Comprehensive Flexible Endoscopy
    • Multi-Society Foregut Fellowship Certification
    • SAGES Research Opportunities
    • Fundamentals of Laparoscopic Surgery
    • Fundamentals of Endoscopic Surgery
    • Fundamental Use of Surgical Energy
    • Job Board
    • SAGES Go Global: Global Affairs and Humanitarian Efforts
  • Search
    • Search All SAGES Content
    • Search SAGES Guidelines
    • Search the Video Library
    • Search the Image Library
    • Search the Abstracts Archive
  • Store
    • “Unofficial” Logo Products
  • Log In

Validation of a 3-D Surgical Navigation System for Laparoscopic Liver Ablation Procedures using a Human Cadaver Model

Chet W Hammill, MD, Maria A Cassera, Logan W Clements, PhD, Prashanth Dumpuri, PhD, James D Stefansic, PhD

Liver and Pancreas Surgery Program, Providence Medical Center, Portland, OR and Pathfinder Technologies, Inc., Nashville, TN

Objective

The Explorer™ Minimally Invasive Liver (MIL) device is a 3-D image guidance system that is intended to be used as a navigation aid during laparoscopic liver ablation procedures and to be used in conjunction with other standard of care intraoperative imaging modalities.

Description

Laparoscopic hepatic ablation procedures are currently performed under the guidance of intraoperative ultrasound, which is 2-D and requires considerable expertise. The Explorer™ MIL device is an experimental 3-D image-guidance system intended to be used in conjunction with ultrasound during laparoscopic liver ablation procedures. The Explorer™ MIL device allows for intraoperative surgical instrument tracking and the display of the location of tracked instrumentation on preoperative tomographic imaging and 3-D models of anatomical structures of interest. Additionally, the Explorer™ MIL device has the ability to track rigid laparoscopic ultrasound transducers and integrate the images into the 3-D model.

Preliminary Results

Determining the accuracy of tumor targeting using an ablation device during clinical procedures is a difficult problem. To overcome this problem, a human cadaver model re-perfused with a contrast agent solution was utilized. Seven to eight biopsy clips (UltraClip® Dual Trigger Breast Tissue Marker, Bard Biopsy Systems, Tempe, AZ) visible on both ultrasound and CT were distributed throughout the liver in five cadavers. After the biopsy clips were placed, a “preoperative” CT was acquired of the cadaveric specimen for use in the Explorer™ MIL device. After randomization the clips were targeted using either laparoscopic ultrasound alone or laparoscopic ultrasound in conjunction with the Explorer™ MIL device. Two different percutaneous ablation instruments, the Covidien Evident™ MWA antenna or the Angiodynamics StarBurst® Xli-enhanced RFA probe, were used for targeting. Once the tip of the probe was placed as close as possible to the specified target it was fixed in place and a “postoperative” CT was acquired. Over all of the ablation probe placements (N = 37), the mean distance between instrument tip and target marker was found to be 8.7±7.5mm for probe placements performed with laparoscopic ultrasound guidance and 6.8±3.8mm for probe placements using the Explorer™ MIL device in concert with laparoscopic ultrasound.

Conclusions & Future Directions

The results from the human cadaver evaluation of the Explorer™ MIL device indicate that there is a potential for the 3-D navigation system to provide some incremental benefit in laparoscopic ablation procedures. Future directions of the Explorer™ MIL device include more extensive evaluation of the benefit provided by tracked laparoscopic ultrasound and the interactive 3-D display of the ultrasound information. Additionally, ongoing research and development efforts are being made to transition to a electromagnetic tracking system which will allow for more accurate tracking of non-rigid surgical instrumentation.


Session: Podium Presentation

Program Number: ET007

292

Share this:

  • Twitter
  • Facebook
  • LinkedIn
  • Pinterest
  • WhatsApp
  • Reddit

Related

« Return to SAGES 2013 abstract archive

Our Mission

Innovate, educate and collaborate to improve patient care.

Recently, on SAGES…

Critical View of Safety (CVS) Challenge QR Code

The SAGES Critical View of Safety Challenge – Donate Your Lap Chole Videos!

The Society of American Gastrointestinal and Endoscopic Surgeons is hosting the first Artificial Intelligence Data Challenge conducted by surgeons. The aim of this challenge is to generate a large and diverse dataset of laparoscopic cholecystectomy videos, annotated with respect to the subcomponents of the Critical View of Safety (CVS). Computer scientists from all over the […]

Respuesta de SAGES al Estudio NordICC sobre el beneficio de las colonoscopias de detección

SAGES desea aclarar los resultados del estudio NordICC y colocarlos en contexto de los esfuerzos de varias agencias nacionales para reducir el riesgo de cáncer colorrectal – la segunda causa de muerte por cáncer más frecuente en los Estados Unidos-, mediante la promoción de la detección y tratamiento oportuno de las lesiones.

SAGES Response to NordICC Study Regarding Benefit of Screening Colonoscopies

The NordICC Study recently published in The New England Journal of Medicine and widely reported on by media outlets has raised questions regarding the benefit of screening colonoscopy in lowering the risk of colorectal cancer and cancer-related deaths among otherwise healthy and symptom-free men and women aged 55 to 64. Provocative headlines and commentaries have […]

Contact SAGES

Society of American Gastrointestinal and Endoscopic Surgeons
11300 W. Olympic Blvd Suite 600
Los Angeles, CA 90064 USA
webmaster@sages.org
Tel: (310) 437-0544

Find Us Around the Web!

  • Facebook
  • Twitter
  • YouTube

Important Links

SAGES 2023 Meeting Information

Healthy Sooner: Patient Information

SAGES Guidelines, Statements, & Standards of Practice

SAGES Manuals

 

  • taTME Study Info
  • Foundation
  • SAGES.TV
  • MyCME
  • Educational Activities

Copyright © 2023 Society of American Gastrointestinal and Endoscopic Surgeons