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SKM-TEA: A Dataset for Accelerated MRI Reconstruction with Dense Image Labels for Quantitative Clinical Evaluation
Arjun Desai · Andrew Schmidt · Elka Rubin · Christopher Sandino · Marianne Black · Valentina Mazzoli · Kathryn Stevens · Robert Boutin · Chris Ré · Garry Gold · Brian Hargreaves · Akshay Chaudhari

Magnetic resonance imaging (MRI) is a cornerstone of modern medical imaging. However, long image acquisition times, the need for qualitative expert analysis, and the lack of (and difficulty extracting) quantitative indicators that are sensitive to tissue health have curtailed more widespread clinically and in research studies. While recent machine learning methods for MRI reconstruction and analysis have shown promise for reducing this burden, these techniques are primarily validated with imperfect image quality metrics, which are discordant with clinically-relevant measures that ultimately hamper clinical deployment and clinician trust. To mitigate this challenge, we present the Stanford Knee MRI with Multi-Task Evaluation (SKM-TEA) dataset, a collection of quantitative knee MRI (qMRI) scans that enables end-to-end, clinically-relevant evaluation of MRI reconstruction and analysis tools. This 1.6TB dataset consists of raw-data measurements of approximately 25,000 slices (155 patients) of anonymized patient MRI scans, the corresponding scanner-generated DICOM images, manual segmentations of four tissues, and bounding box annotations for sixteen clinically relevant pathologies. We provide a framework for using qMRI parameter maps, along with image reconstructions and dense image labels, for measuring the quality of qMRI biomarker estimates extracted from MRI reconstruction, segmentation, and detection techniques. Finally, we use this framework to benchmark state-of-the-art baselines on this dataset. We hope our SKM-TEA dataset and code can enable a broad spectrum of research for modular image reconstruction and image analysis in a clinically informed manner.

Author Information

Arjun Desai (Stanford University)
Andrew Schmidt
Elka Rubin
Christopher Sandino (Apple, Inc.)
Marianne Black (Stanford University)
Valentina Mazzoli (Stanford University)
Kathryn Stevens
Robert Boutin
Chris Ré (Stanford)
Garry Gold
Brian Hargreaves
Akshay Chaudhari (Stanford University)

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