
A committee of experts from top U.S. medical centers and research institutes is harnessing NVIDIA-powered federated learning to evaluate the impact of federated learning and AI-assisted annotation to train AI models for tumor segmentation.
Federated learning is a technique for developing more accurate, generalizable AI models trained on data across diverse data sources without mitigating data security or privacy. It allows several organizations to collaborate on the development of an AI model without sensitive data ever leaving their servers.
Due to privacy and data management constraints, it's growing more and more complicated to share data from site to site and aggregate it in one place - and imaging AI is developing faster than research institutes can set up data-sharing contracts, said John Garrett, associate professor of radiology at the University of Wisconsin-Madison. Adopting federated learning to build and test models at multiple sites at once is the only way, practically speaking, to keep up. It's an indispensable tool.
Garrett is part of the Society for Imaging Informatics and Medicine (SIIM) Machine Learning Tools and Research Subcommittee, a group of clinicians, researchers and engineers that aims to advance the development and application of AI for medical imaging. NVIDIA is a member of SIIM, and has been collaborating with the committee on federated learning projects since 2019.
Federated learning techniques allow enhanced data privacy and security in compliance with privacy regulations like GDPR, HIPAA and others, said committee chair Khaled Younis. In addition, we see improved model accuracy and generalization.
To support their latest project, the team - including collaborators from Case Western, Georgetown University, the Mayo Clinic, the University of California, San Diego, the University of Florida and Vanderbilt University - tapped NVIDIA FLARE (NVFlare), an open-source framework that includes robust security features, advanced privacy protection techniques and a flexible system architecture.
Through the NVIDIA Academic Grant Program, the committee received four NVIDIA RTX A5000 GPUs, which were distributed across participating research institutes to set up their workstations for federated learning. Additional collaborators used NVIDIA GPUs in the cloud and in on-premises servers, highlighting the flexibility of NVFLare.
Cracking the Code for Federated Learning Each of six participating medical centers provided data from around 50 medical imaging studies for the project, focused on renal cell carcinoma, a kind of kidney cancer.
The idea with federated learning is that during training we exchange the model rather than exchange the data, said Yuankai Huo, assistant professor of computer science and director of the Biomedical Data Representation and Learning Lab at Vanderbilt University.
In a federated learning framework, an initial global model broadcasts model parameters to client servers. Each server uses those parameters to set up a local version of the model that's trained on the organization's proprietary data. Then, updated parameters from each of the local models are sent back to the global model, where they're aggregated to produce a new global model. The cycle repeats until the model's predictions no longer improve with each training round.
The group experimented with model architectures and hyperparameters to optimize for training speed, accuracy and the number of imaging studies required to train the model to the desired level of precision.
AI-Assisted Annotation With NVIDIA MONAI In the first phase of the project, the training data used for the model was labeled manually. For the next phase, the team is using NVIDIA MONAI for AI-assisted annotation to evaluate how model performance differs with training data segmented with the help of AI compared to traditional annotation methods.
The biggest struggle with federated learning activities is typically that the data at different sites is not tremendously uniform. People use different imaging equipment, have different protocols and just label their data differently, said Garrett. By training the federated learning model a second time with the addition of MONAI, we aim to find if that improves overall annotation accuracy.
The team is using MONAI Label, an image-labeling tool that enables users to develop custom AI annotation apps, reducing the time and effort needed to create new datasets. Experts will validate and refine the AI-generated segmentations before they're used for model training.
Data for both the manual and AI-assisted annotation phases is hosted on Flywheel, a leading medical imaging data and AI platform that has integrated NVIDIA MONAI into its offerings.
Once the project is complete, the team plans to publish their methodology, annotated datasets and pretrained model to support future work.
We're interested in not just exploring these tools, Garrett said, but also publishing our work so others can learn and use these tools throughout the medical field.
Apply for an NVIDIA Academic Grant The NVIDIA Academic Grant Program advances academic research by providing world-class computing access and resources to researchers. Applications are now open for full-time faculty members at accredited academic institutions who are using NVIDIA technology to accelerate projects in simulation and modeling, generative AI and large language models.
Future application cycles will focus on projects in data science, graphics and vision, and edge AI - including federated learning.
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
06/09/2026
June 9 2026, 23:00 (PDT) Dolby and MagentaTV Bring Fans Closer to the FIFA Worl...
04/08/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
10/07/2026
In-venue and creative video staffers at the professional and collegiate level ha...
10/07/2026
FUJIFILM North America Corporation has announced the FUJINON GF19-35mmT3.5 PZ OIS WR, a cinema power zoom lens for the GFX System with native G Mount. The lens ...
10/07/2026
Dalet has announced a new Long-Term Supported (LTS) release of Dalet Flex, expanding AI capabilities, workflow automation, and integration with Dalia, Dalet'...
10/07/2026
Blackmagic Design has released Fairlight Live, a free software-based broadcast audio mixer for Mac and Windows, available for download now. Simultaneously, the ...
10/07/2026
FloSports and the USA South Athletic Conference have announced an exclusive medi...
10/07/2026
Daktronics has manufactured and installed an LED video display at Field of Dream...
10/07/2026
Registration is now open for NAB Show New York 2026, taking place October 21-22 ...
10/07/2026
Sphere Entertainment Co. and the Formula 1 Heineken Las Vegas Grand Prix have an...
10/07/2026
CBS Sports and the Asian Football Confederation (AFC) have announced a media rights partnership covering the AFC Asian Cup Saudi Arabia 2027 and the AFC U23 Asi...
10/07/2026
Sony Electronics has announced the RX10 V, the fifth generation of its RX10 all-in-one camera series. The camera will be available in August 2026 at a suggested...
10/07/2026
Chyron has announced PRIME 5.4, an update to its unified graphics, playout, and ...
10/07/2026
The nine-time Emmy Award-winning video engineer was a pioneer of NASCAR in-car cameras and a longtime fixture in FOX Sports' video-control operation...
10/07/2026
FuboTV Inc. has announced the appointment of Alisa Bowen as Chief Executive Officer, effective July 10. Bowen succeeds David Gandler, who co-founded the company...
10/07/2026
Every entry on Nielsen's Top 25 Live Sports Events Telecasts for the week of...
10/07/2026
The Braves opted to keep production in-house rather than hand it off to MLB...
10/07/2026
Drones, jibs, robos are part of the expanded camera complement for the Professional Bull Riders series
PBR Teams' 2026 season, with a 10-team field competi...
10/07/2026
(L-R) Michael Arndt, Paul Dano, Toni Collette, Valerie Faris, Abigail Breslin, Jonathan Dayton, and Greg Kinnear attend the Park City Legacy program screening o...
10/07/2026
Discounted rates available through 27 August 2026
The Audio Engineering Society (AES) have announced that Early Bird registration is now open for the AES Sh...
10/07/2026
New in-ear monitors to launch in August 2026
Sony have announced the upcoming launch of a new pair of in-ear monitors that promise to deliver a secure, stab...
10/07/2026
Why CRAS Upgraded to Symphony I/O MK II When an audio school runs studios all day, every day, gear doesn't just need to sound good , it needs to survive rea...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
Hey Man, Cheech & Chong's Last Movie Rolls With SNS EVO
Melanie Ciotti July 10, 2026
0 Comments
Richard Cheech Marin and Tommy Chong have long b...
10/07/2026
Alex Zarfati's Fail Safe Shot with Blackmagic PYXIS 12K
Brie Clayton July 10, 2026
0 Comments
Camera's full frame sensor supports anamorphic s...
10/07/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
10/07/2026
New RT documentary explores Irish-led efforts to build bridges in divided Cyprus
More than a Game: From D1 to Pyla airs Monday 13 July
More Than a Game: Fro...
09/07/2026
With 50+ cameras, three trucks, 60+ EVS channels, RFID hole-card workflows, and ...
09/07/2026
A recent graduate from Westchester, NY, this experienced technician has already started her first gig in the industry, as a REMI A2 Comms Specialist at ESPN
In...
09/07/2026
Live sports production is a fast-paced industry with no signs of slowing down. W...
09/07/2026
From a rooftop studio in Manhattan, multiple Germany-based companies share respo...
09/07/2026
Overtime has announced a content partnership with FOX One to produce Race to Glo...
09/07/2026
Clear-Com has announced that Ross Production Services (RPS) has standardized on ...
09/07/2026
The NFL has announced that NetApp will return as Presenting Partner of the NFL Madrid Game, featuring the Atlanta Falcons against the Cincinnati Bengals at the ...
09/07/2026
The R&A and Cisco have announced a multi-year partnership making Cisco the Official Network Supplier of The R&A and its Championships. Cisco will deploy AI-read...
09/07/2026
Fox Television Stations, Extreme Reach (XR), and LTN have announced the completi...
09/07/2026
Kiswe has announced a partnership with Wynn Records to launch the Wynn Records Network streaming platform, debuting Saturday, July 11 with a Salita Promotions b...
09/07/2026
NEP Europe has announced a new multi-year agreement with Wimbledon Broadcast Ser...
09/07/2026
Thropic Games, a company offering casual mobile games tied to fan fundraising for sports programs, has announced a pre-seed funding round led by The Famous Grou...
09/07/2026
Game Creek Video has reached an agreement with Grass Valley to purchase 10 K-Frame production switchers as part of a two-year fleet expansion. Two systems have ...
09/07/2026
Gravity Media is delivering a three-hub remote production workflow for ITV's...
09/07/2026
A new report from Quickplay and Caretta Research, The Broadcaster Revolution Wi...
09/07/2026
DAZN, the world's leading sports entertainment platform, has announced a long-term strategic partnership with the Esports World Cup Foundation to serve as t...