Intended Use

DeepFoqus-Accelerate is a stand-alone software solution intended for acceptance, enhancement, and transfer of brain MRI images in DICOM format. It reconstructs non-contrast enhanced MRI images acquired on 1.5T or 3T Siemens and GE scanners, using Sagittal, Axial, or Coronal T1, T2, or FLAIR sequences. It is intended for adult scans only and is not for mobile devices.

Technology

DeepFoqus-Accelerate uses AI and machine learning models, including convolutional neural networks (CNN) and U-net architectures, to reconstruct MRI images from up to 4x accelerated scans. The pipeline includes ingestion of k-space and DICOM files, preprocessing, application of an ensemble of fine-tuned deep learning and signal processing models, post-processing, and final DICOM output. It accepts HDF5 and DICOM inputs and is trained on diverse datasets across magnet strengths and image orientations.

Performance

Performance evaluation included software verification and validation (code review, functional testing, penetration testing), analytical performance validation using SSIM, PSNR, and HaarPSI metrics, phantom bench testing according to ACR MRI guidelines, artifact assessment for reconstruction robustness, clinical performance validation by radiologist review of diverse scans, and user acceptance testing by radiologists and technologists. Results demonstrated comparable performance to the predicate device SwiftMR with no additional reconstruction errors.

Predicate Devices

No predicate devices specified

Device Timeline

  • 1

    Submission

    7/5/2024

    9 months
  • 2

    FDA Approval

    4/4/2025

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