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Whole-body MR imaging in the German National Cohort: rationale, design, and technical background

Item Type:Article
Title:Whole-body MR imaging in the German National Cohort: rationale, design, and technical background
Creators Name:Bamberg, F. and Kauczor, H.U. and Weckbach, S. and Schlett, C.L. and Forsting, M. and Ladd, S.C. and Greiser, K.H. and Weber, M.A. and Schulz-Menger, J. and Niendorf, T. and Pischon, T. and Caspers, S. and Amunts, K. and Berger, K. and Bülow, R. and Hosten, N. and Hegenscheid, K. and Kröncke, T. and Linseisen, J. and Günther, M. and Hirsch, J.G. and Köhn, A. and Hendel, T. and Wichmann, H.E. and Schmidt, B. and Jöckel, K.H. and Hoffmann, W. and Kaaks, R. and Reiser, M.F. and Völzke, H.
Abstract:Purpose: To detail the rationale, design, and future perspective of implementing whole-body magnetic resonance (MR) imaging in the German National Cohort, a large multicentric population-based study. Materials and Methods: All institutional review boards approved the study, and informed consent is obtained before study enrollment. Participants are enrolled from a random sample of the general population at five dedicated imaging sites among 18 recruitment centers. MR imaging facilities are equipped with identical 3.0-T imager technology and use uniform MR protocols. Imager-specific hardware and software settings remained constant over the study period. On-site and centralized measures of image quality enable monitoring of completeness of the acquisitions and quality of each of the MR sequences. Certified radiologists read all MR imaging studies for presence of incidental findings according to predefined algorithms. Results: Over a 4-year period, six participants per day are examined at each center, totaling a final imaging cohort of approximately 30 000 participants. The MR imaging protocol is identical for each site and comprises a set of 12 native series to cover neurologic, cardiovascular, thoracoabdominal, and musculoskeletal imaging phenotypes totaling approximately 1 hour of imaging time. A dedicated analysis platform as part of a central imaging core incorporates a thin client-based integrative and modular data handling platform to enable multicentric off-site image reading for incidental findings. Scientific analysis will be pursued on a per-project hypothesis-driven basis. Conclusion: Population-based whole-body MR imaging as part of the German National Cohort will serve to compile a comprehensive image repository, will provide insight into physiologic variants and subclinical disease burden, and has the potential to enable identification of novel imaging biomarkers of risk.
Keywords:Germany, Incidental Findings, Magnetic Resonance Imaging, Research Design, Whole Body Imaging
Publisher:Radiological Society of North America
Page Range:206-220
Date:October 2015
Official Publication:https://doi.org/10.1148/radiol.2015142272
PubMed:View item in PubMed

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