Cited by 63Advanced MRI Techniques and ApplicationsMedical Image Segmentation TechniquesArtificial Intelligence in Healthcare and Education

Technical Note: MRQy — An open‐source tool for quality control of MR imaging data

Open access
Sadri, Amir Reza, Janowczyk, Andrew, Zhou, Ren, Verma, Ruchika, Beig, Niha, Antunes, Jacob, Madabhushi, Anant, Tiwari, Pallavi +1 more·2020·Medical Physics

Abstract

Purpose: There is an increasing availability of large imaging cohorts [such as through The Cancer Imaging Archive (TCIA)] for computational model development and imaging research. To ensure development of generalizable computerized models, there is a need to quickly determine relative quality differences in these cohorts, especially when considering MRI datasets which can exhibit wide variations in image appearance. The purpose of this study is to present a quantitative quality control tool, MRQy, to help interrogate MR imaging datasets for: (a) site‐ or scanner‐specific variations in image resolution or image contrast, and (b) imaging artifacts such as noise or inhomogeneity; which need correction prior to model development. Methods: Unlike existing imaging quality control tools, MRQy has been generalized to work with images from any body region to efficiently extract a series of quality measures (e.g., noise ratios, variation metrics) and MR image metadata (e.g., voxel resolution and image dimensions). MRQy also offers a specialized HTML5‐based front‐end designed for real‐time filtering and trend visualization of quality measures. Results: MRQy was used to evaluate (a) n = 133 brain MRIs from TCIA (7 sites) and (b) n = 104 rectal MRIs (3 local sites). MRQy measures revealed significant site‐specific variations in both cohorts, indicating potential batch effects. Before processing, MRQy measures could be used to identify each of the seven sites within the TCIA cohort with 87.5%, 86.4%, 90%, 93%, 90%, 60%, and 92.9% accuracy and the three sites within the rectal cohort with 91%, 82.8%, and 88.9% accuracy using unsupervised clustering. After processing, none of the sites could be distinctively clustered via MRQy measures in either cohort; suggesting that batch effects had been largely accounted for. Marked differences in specific MRQy measures were also able to identify outlier MRI datasets that needed to be corrected for common acquisition artifacts. Conclusions: MRQy is designed to be a standalone, unsupervised tool that can be efficiently run on a standard desktop computer. It has been made freely accessible and open‐source at http://github.com/ccipd/MRQy for community use and feedback.

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  1. [5]Bushberg JT, Seibert JA, Leidholdt EM, and Boone JM, The essential physics of medical imaging, Lippincott Williams & Wilkins, 2011.
  2. [18]Maaten L. v. d. and Hinton G, Visualizing data using t-SNE, Journal of machine learning research 9, 2579– 2605 (2008).
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Authors
Sadri, A. R., Janowczyk, A., Zhou, R., Verma, R., Beig, N., Antunes, J., Madabhushi, A., Tiwari, P., & Viswanath, S. E.
Affiliations
  • Case Western Reserve University (US)
  • Centre Hospitalier Universitaire Vaudois (CH)
  • Louis Stokes Cleveland VA Medical Center (US)
Corresponding author
Viswanath, Satish E
Venue
Medical Physics
Publisher
Wiley
Published
2020-11-27
Volume
47
Issue
12
Pages
6029-6038
ISSN
  • 0094-2405 (ISSN-L)
  • 2473-4209
OpenAlex
W3015365640
Cited by
63
References
22
Citations by year
2026: 7 · 2025: 9 · 2024: 13 · 2023: 10 · 2022: 10 · 2021: 12 · 2020: 2
FWCI
4.14
Type
journal article
Language
en
Open access
Locations
  • Medical Physics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • U.S. Department of Veterans Affairs (IK6 BX006185, I01 BX004121)
  • National Institutes of Health (1f31ca216935-01a1, UL1TR002548)
  • Clinical and Translational Science Collaborative of Cleveland, School of Medicine, Case Western Reserve University (UL1TR0002548)
  • National Heart, Lung, and Blood Institute (R01HL151277)
  • National Cancer Institute (U01CA248226, F31 CA216935, U24CA199374, R01CA216579, U01CA239055, R01CA208236, R01CA202752, R01CA220581, 1F31CA216935-01A1)
  • National Institute of Biomedical Imaging and Bioengineering (R43EB028736)
  • National Center for Research Resources (C06RR012463, 1C06RR12463‐01)
  • National Center for Advancing Translational Sciences
  • DOD Prostate Cancer Research Program (W81XWH-20-1-0851, W81XWH-15-1-0558)
  • DOD Peer Reviewed Cancer Research Program (W81XWH-16–1-0329, W81XWH-18-1-0404)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
  • Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
Keywords
MRI quality control, MRI artifacts, batch effects, site-specific variation, noise ratio, image resolution, image contrast, inhomogeneity correction, outlier detection, unsupervised clustering, The Cancer Imaging Archive, brain MRI, rectal MRI, open source software
MeSH terms
Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Quality Control, Cohort Studies, Artifacts

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