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coreMRI: A high-performance, publicly available MR simulation platform on the cloud.

Christos G Xanthis1, Anthony H Aletras1,2

  • 1Department of Clinical Sciences Lund, Clinical Physiology, Skåne University Hospital, Lund University, Lund, Sweden.

Plos One
|May 18, 2019
PubMed
Summary

A new cloud-based platform, coreMRI, offers advanced MRI simulations as a web service. This scalable, GPU-powered engine acts as a virtual MRI scanner and a high-performance tool for quantitative MR simulations.

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Area of Science:

  • Medical Imaging
  • Computational Science

Background:

  • Magnetic Resonance Imaging (MRI) simulations are crucial for developing and validating quantitative MR (qMR) methods.
  • Current simulation approaches often face limitations due to computational demands and hardware accessibility.

Purpose of the Study:

  • To develop the first advanced MRI simulation platform delivered as a web service.
  • To create an on-demand, scalable, cloud-based, and GPU-powered infrastructure for MRI simulations.
  • To enable advanced MR simulations for quantitative MR (qMR) methods.

Main Methods:

  • The coreMRI simulation framework is based on solving Bloch equations using a ground-up approach.
  • A modular design allows integration of components like the Gadgetron reconstruction framework and a Pulse Sequence Designer.
  • A front-end environment connects users to cloud-based GPU instances for simulation execution.

Main Results:

  • The platform demonstrates flexibility with various pulse sequences and anatomical models.
  • Performance and scalability were validated on multi-GPU cloud configurations.
  • Advanced GPU hardware significantly reduces execution times for complex MRI and qMR simulations.

Conclusions:

  • coreMRI provides the MR community with a high-performance, scalable simulation platform.
  • Users can configure advanced MRI experiments without the constraints of physical scanners or programming expertise.
  • The web service eliminates the need for upfront investment in advanced computing systems.