Computer Vision / Video Analytics

NVIDIA Clara Imaging Brings AI-Assisted Annotation and Model Training to XNAT to Enable Medical Imaging AI

AI-Generated Summary

  • XNAT 1.8 adds model training and AI-assisted annotation workflows to the open-source imaging research platform.
  • The release enables assembly of training-specific imaging data collections into balanced cohorts for model development.
  • Integration with NVIDIA Clara Imaging provides pre-trained models and collaborative training techniques without sharing patient data across institutions.
  • Users can install pre-trained models from NVIDIA Clara Train available through NVIDIA NGC into the XNAT ML environment.
  • Training frameworks from Clara Train accelerate model development using annotated datasets on GPU-accelerated infrastructure.

Next Steps

  • Explore the XNAT platform to access the 1.8 release with AI capabilities.
  • Review the Radiologics collaboration for additional implementation resources.
  • Visit the NVIDIA Clara Imaging framework to learn about pre-trained models and deployment tools.
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XNAT, one of the most widely-used open-source informatics platforms for imaging research, announced the general release of XNAT 1.8 on March 10. Building on the announcement of XNAT ML Beta in the summer of 2020, XNAT will accelerate the creation of AI models by providing an end-to-end development platform, enabling faster collaborations between data science and clinical teams.

XNAT, in collaboration with NVIDIA, Radiologics, and the ICR Imaging Informatics group, announced the general availability of XNAT 1.8, adding support for model training and AI-assisted annotation workflows. This integration was first announced at the RSNA 2019 conference, where a proof of concept was demonstrated using models and APIs from the NVIDIA Clara Imaging framework with accelerated GPU computing.

The XNAT release introduces new capabilities with the XNAT imaging research platform, accelerated by GPUs:

  • Assemble training-specific collections of imaging data files into specific training projects to build balanced data cohorts
  • Draw new segmentations and annotations on that data, using NVIDIA Clara Train’s AI-assisted annotation
  • Install and configure pre-trained models from Clara Train, available through NVIDIA NGC into the XNAT ML environment
  • Train models with annotated datasets using training framework  provided by NVIDIA Clara Train 

NVIDIA Clara Imaging is an application framework that accelerates the development and deployment of AI in medical imaging. Built for anyone building AI models, Clara Imaging offers pre-trained models, collaborative techniques to train robust AI models without sharing patient data across institutions, and end-to-end software for scalable and modular AI deployments.

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