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
11/12/2025
Dalet, a leading provider of cloud-native, end-to-end media workflow solutions, ...
28/11/2025
The Professional Fighters League is looking to super-serve fans of mixed martial...
28/11/2025
Fubo has released in beta on select Roku devices a new feature that lets users display up to four simultaneous streams at once....
28/11/2025
The WNBA playoffs and Week 4 of the NFL regular season highlight the list of live sports events airing on television this weekend....
28/11/2025
The 32nd class of honorees to the B+C Hall of Fame took to the stage at New York's Ziegfeld Ballroom on September 26 for a gala induction event. Click below...
28/11/2025
We hold in our hands the very last Next Text for Next TV, the weekly back-and-fo...
28/11/2025
DirecTV said it made a deal with EchoStar to buy EchoStar's video businesses, including satellite-TV provider Dish TV and virtual MVPD Sling TV, for $1 plus...
28/11/2025
The Broadcasting+Cable Hall of Fame, the premier industry event paying tribute to the influencers, innovators and shining lights of broadcast, cable and streami...
27/11/2025
LONDON Vizrt has added several AI-driven advanced features offering improved speed, intelligence and accuracy in the newest version of its media asset managemen...
27/11/2025
Prime Video has launched AI-powered video season recaps in a beta version for select English-language Prime Original series in the U.S., a move Amazon is callin...
27/11/2025
27 Nov 2025
GSMA brings M360 Eurasia 2026 to Samarkand in partnership with VEON...
27/11/2025
Tahar Rahim and Izuka Hoyle star in the gripping six-part Sky Original from Acad...
27/11/2025
Thursday 27 November 2025
Sky Arts Reveals the Nation's Greatest Basslines - and Queen Reign Supreme
The UK's most iconic basslines have been revealed...
27/11/2025
Back to All News
Stranger Things 5': Prepare for One Last Adventure With O...
27/11/2025
The media industry has a paradox at its core. It's an industry built on light, color and imagination, yet behind the scenes, it's powered by one of the ...
27/11/2025
Rating reflects rating progress across areas including policies, diversity & inclusion, health & safety and Net Zero leadership
Winchester, UK, 27 November 202...
27/11/2025
What are the industry standards for Retail Media? Kathryn explains that certification is based on the IAB Europe Retail Media Measurement Standards and the IAB ...
27/11/2025
World champion boxer and Irish sporting icon Katie Taylor will be in studio this...
27/11/2025
Roblox, one of the world's most popular online gaming platforms for primary ...
27/11/2025
Black Friday is leveling up. Get ready to score one of the biggest deals of the season - 50% off the first three months of a new GeForce NOW Ultimate membership...
26/11/2025
SVG Sit-Down: Prime Video EP Mike Muriano Previews Massive Black Friday Slate Fe...
26/11/2025
A cinematic snow sculpture at the 1995 Sundance Film Festival. Photo by Randall Michelson...
26/11/2025
Book podcasts are booming. On Spotify, you'll find everything from celebrity book clubs to deep dives with bestselling authors. And in markets where audiobo...
26/11/2025
Mumbai, November 24, 2025: In a first-of-its-kind initiative, JioStar, in collab...
26/11/2025
LONDON Factual content producer ITN Productions has launched a new low-latency IP gallery for news bulletins....
26/11/2025
MIAMI TelevisaUnivision said it struck a new multiyear distribution agreement with YouTube TV that includes distribution of TelevisaUnivision's U.S. network...
26/11/2025
OpenDrives, Inc., a leader in software-defined data storage and data services, today announced the launch of the Atlas Corporate Creative Solution. This new Atl...
26/11/2025
Disguise, the industry-leading company powering the world's biggest live performances, is partnering with pioneering LED wall manufacturer DVS to give atten...
26/11/2025
HighField AI, the pioneer in agentic and multimodal automation for broadcast and media production, today announced the expansion of its global channel partner n...
26/11/2025
As high-stakes Premier League fixtures approach and additional premium content launches, with MONO positioning themselves to dominate Thailand's sports stre...
26/11/2025
Hosting a wide variety of events from high-intensity NHL games to complex live music concerts and major entertainment productions, Montreal's 21,000 capacit...
26/11/2025
Vizrt, the leader in live production technology revolutionizing viewer engagement and experience, releases AI-driven advances focusing on speed, intelligence, a...
26/11/2025
ITN Productions, an award-winning factual content producer, today launched a new low-latency IP gallery for news bulletins. Responsible for delivering a leading...
26/11/2025
Ikegami reports ongoing advances throughout 2025 in developing and delivering coordinated television production solutions that maximize quality, versatility and...
26/11/2025
Following the Nov. 21 blackout of NBCUniversal channels on Fubo, the two sides have traded barbs about their inability to reach a new carriage deal....
26/11/2025
LONDON As TV sports rights become increasingly important for both broadcasters and streamers, Ampere Analysis predicts global investment in the genre will surpa...
26/11/2025
LOS ANGELES Vubiquity said it has achieved the Amazon Web Services (AWS) Media & Entertainment Competency as part of the AWS Partner Network (APN). This designa...
26/11/2025
WASHINGTON The Federal Communications Commission's Enforcement Bureau said it has entered into a consent decree with Comcast calling for the cable company t...
26/11/2025
Berklee Named to the Hollywood Reporters Top Music Schools List The publication highlights the college's screen scoring program, industry partnerships, and ...
26/11/2025
Back to All News
Animated Series Love Through a Prism' Casts New Light on ...
26/11/2025
Back to All News
NALIP Unveils Fifth Cohort of Director Incubator
Social Impact
26 November 2025
United States
Link copied to clipboard
The National Assoc...
26/11/2025
YouView Achieves Greenly Gold Certification for SustainabilityNov 26, 2025
YouView is proud to announce a Gold Certification award from Greenly for our perform...
26/11/2025
Back to All News
Netflix Deepens Partnership with Taiwan's 62nd Golden Hors...
25/11/2025
Tracy Bonareri Onchoke, an investigative journalist from Kenya is the winner of the Thomson Foundation's Young Journalist Award 2025.
The 26-year-old-sele...
25/11/2025
SVG All-Stars: Blayke Scheer, Senior Director, Creative Content, YES NetworkThe Indiana alum has turned storytelling into an artform for more than two decadesBy...
25/11/2025
Op-Ed: With FCC's C-Band Auction on the Horizon, Broadcasters Need Proven, C...
25/11/2025
Analysis: Is Baller League really the future of sport? By Callum McCarthy, Editor-at-Large
Tuesday, November 25, 2025 - 10:10
Print This Story
With KSI on...
25/11/2025
Platinum Whitepaper: The Growth of Broadcast in the World of Major Large Scale E...
25/11/2025
SVG Summit 2025 Preview: SVG Women's Sports WorkshopBy Samantha Gabay
Tuesday, November 25, 2025 - 10:27 am
Print This Story | Subscribe
Story Highlig...
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.
