Nav: Home

Biocompatible 3-D tracking system has potential to improve robot-assisted surgery

February 17, 2017

WASHINGTON, DC - (Feb. 17, 2017) - The cutting-edge biocompatible near-infrared 3D tracking system used to guide the suturing in the first smart tissue autonomous robot (STAR) surgery has the potential to improve manual and robot-assisted surgery and interventions through unobstructed 3D visibility and enhanced accuracy, according to a study published in the March 2017 issue of IEEE Transactions on Biomedical Engineering. The study successfully demonstrates feasibility in live subjects (in-vivo) and demonstrates 3D tracking of tissue and surgical tools with millimeter accuracy in ex-vivo tests. More accurate and consistent suturing helps reduce leakage, which can improve surgical outcomes.

Authored by the development team from Sheikh Zayed Institute for Pediatric Surgical Innovation at Children's National Health System and funded by the National Institutes of Health, the study explains the design of the 3D tracking system with near-infrared fluorescent (NIRF) markers and, using robotic experiments, compares its tracking accuracies against standard optical tracking methods. At speeds of 1 mm/second, the team observed tracking accuracies of 1.61 mm that degraded only to 1.71 mm when the markers were covered in blood and tissue.

"A fundamental challenge in soft-tissue surgery is that target tissue moves and deforms, becomes occluded by blood or other tissue, which makes it difficult to differentiate from surrounding tissue," says Axel Krieger, Ph.D., senior author on the study and program lead for Smart Tools at the Sheikh Zayed Institute. "By enabling accurate tracking of tools and tissue in the surgical environment, this innovative work has the potential to improve many applications for manual and robot-assisted surgery."

The system is made up of small biocompatible NIRF markers with a novel fused plenoptic and near-infrared (NIR) camera tracking system, enabling 3D tracking that can overcome blood and tissue occlusion in an uncontrolled, rapidly changing surgical environment. Krieger explains that the NIR imaging has the potential to overcome occlusion problems because NIR light penetrates deeper than visual light.

"This work describes the 'super human eyes' and a bit of 'intelligence' of our STAR robotic system, making tasks such as soft tissue surgery on live subjects possible," explains Peter C. Kim, M.D., vice president and associate surgeon in chief of the Sheikh Zayed Institute.

Future work will include further integration and evaluation of the tracking system in image-guided medical interventions such as robotic surgeries.
-end-
The Sheikh Zayed Institute for Pediatric Surgical Innovation at Children's National Health System is a hub for innovation focused on making pediatric surgery more precise, less invasive and pain free. It was founded in 2010 through a $150 million gift from the Government of Abu Dhabi. By combining research and clinical work in the areas of imaging, bioengineering, pain medicine, immunology and personalized medicine, the institute's physicians and scientists are developing leading-edge knowledge, tools and procedures that will benefit children globally.

Children's National Health System

Related Biomedical Engineering Articles:

Artificial intelligence improves biomedical imaging
ETH researchers use artificial intelligence to improve quality of images recorded by a relatively new biomedical imaging method.
Researchers design superhydrophobic 'nanoflower' for biomedical applications
Plant leaves have a natural superpower -- they're designed with water repelling characteristics.
Transparency and reproducibility of biomedical research is improving
New research publishing Nov. 20 in the open-access journal PLOS Biology from Joshua Wallach, Kevin Boyack, and John Ioannidis suggests that progress has been made in key areas of research transparency and reproducibility.
A pill for delivering biomedical micromotors
Using tiny micromotors to diagnose and treat disease in the human body could soon be a reality.
Accounting for sex differences in biomedical research
When it comes to health, a person's sex can play a role.
Biomedical Engineering hosts national conference on STEM education for underserved students
The University of Akron hosts a national conference aimed at ensuring underserved students have access to opportunities in science, technology, engineering and mathematics (STEM).
Boosting the lifetime and effectiveness of biomedical devices
A research team led by the University of Delaware's David Martin has discovered a new approach to boosting the lifetime and effectiveness of electronic biomedical devices.
Support for Chicago Biomedical Consortium renewed
The Searle Funds at The Chicago Community Trust has renewed its funding commitment to the Chicago Biomedical Consortium, a research and education collaboration of Northwestern University, the University of Illinois at Chicago and University of Chicago that has helped establish the Chicago area as a biomedical sciences leader.
Should biomedical graduate schools ignore the GRE?
A research team at the UNC School of Medicine found that the Graduate Record Exam (GRE), which is required for admission to graduate and doctorate programs across the country, is not the best indicator for predicting a student's success while pursuing a doctorate in the experimental life sciences.
HKU Engineering Professor Ron Hui named a Fellow by the UK Royal Academy of Engineering
Professor Ron Hui, Chair Professor of Power Electronics and Philip Wong Wilson Wong Professor of Electrical Engineering at the University of Hong Kong, has been named a Fellow by the Royal Academy of Engineering, UK, one of the most prestigious national academies.
More Biomedical Engineering News and Biomedical Engineering Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: Reinvention
Change is hard, but it's also an opportunity to discover and reimagine what you thought you knew. From our economy, to music, to even ourselves–this hour TED speakers explore the power of reinvention. Guests include OK Go lead singer Damian Kulash Jr., former college gymnastics coach Valorie Kondos Field, Stockton Mayor Michael Tubbs, and entrepreneur Nick Hanauer.
Now Playing: Science for the People

#562 Superbug to Bedside
By now we're all good and scared about antibiotic resistance, one of the many things coming to get us all. But there's good news, sort of. News antibiotics are coming out! How do they get tested? What does that kind of a trial look like and how does it happen? Host Bethany Brookeshire talks with Matt McCarthy, author of "Superbugs: The Race to Stop an Epidemic", about the ins and outs of testing a new antibiotic in the hospital.
Now Playing: Radiolab

Dispatch 6: Strange Times
Covid has disrupted the most basic routines of our days and nights. But in the middle of a conversation about how to fight the virus, we find a place impervious to the stalled plans and frenetic demands of the outside world. It's a very different kind of front line, where urgent work means moving slow, and time is marked out in tiny pre-planned steps. Then, on a walk through the woods, we consider how the tempo of our lives affects our minds and discover how the beats of biology shape our bodies. This episode was produced with help from Molly Webster and Tracie Hunte. Support Radiolab today at Radiolab.org/donate.