Automated quality control of brain MR images

• Published in: Journal of magnetic resonance imaging Vol. 28; no. 2; pp. 308 - 319
• Main Authors: Gedamu, Elias L., Collins, D.L., Arnold, Douglas L.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.08.2008
• Subjects: automated; brain; Brain Mapping - methods; Clinical Trials as Topic; computer-assisted image analysis; Contrast Media; Gadolinium; Humans; Image Processing, Computer-Assisted - standards; magnetic resonance imaging; Magnetic Resonance Imaging - standards; Quality Control; quantitative evaluation
• ISSN: 1053-1807; 1522-2586
• DOI: 10.1002/jmri.21434

Purpose To present a novel fully automated method for assessing the quality of magnetic resonance imaging (MRI) data acquired in a clinical trials environment. Materials and Methods This work was performed in the context of clinical trials for multiple sclerosis. Quality control (QC) procedures included were: (i) patient brain identity verification, (ii) alphanumeric parameter matching, (iii) signal‐to‐noise ratio estimation, (iv) gadolinium‐enhancement verification, and (v) detection of ghosting due to head motion. Each QC procedure produces a quantitative measurement which is compared against an acceptance threshold that was determined based on receiver operating characteristic analysis of traditional manual and visual QC performed by trained experts. Results The automated QC results have high sensitivity and specificity when compared with the visual QC. Conclusion Our automated objective QC procedure can replace many manual subjective procedures to provide increased data throughput while reducing reader variability. J. Magn. Reson. Imaging 2008;28:308–319. © 2008 Wiley‐Liss, Inc.