Comparison of liver iron concentration calculated from R2* at 1.5 T and 3 T.

"all data (pooled) siemens data and philips/ge data table 4"

"Declarations Competing interestsFinancial interests: EP, MB and MP are shareholders in Perspectum Ltd. EP, SK MB and AT are employed by Perspectum Ltd. Non-financial interests: none. Ethical approvalThis study was performed in accordance with the ethical standards of the South-Central Oxford Research Ethics Committee and with the 1964 Helsinki Declaration and its later amendments. The trial had ethical approval (South-Central Oxford Research Ethics Committee C (Ref: 17/SC/0205)). Consent to participateAll participants gave written informed consent. Competing interests Financial interests: EP, MB and MP are shareholders in Perspectum Ltd. EP, SK MB and AT are employed by Perspectum Ltd. Non-financial interests: none."

"Funding EP is supported by a Royal Commission for the Exhibition of 1851 Industrial Fellowship. MP is supported by the Oxford National Institute for Health and Care Research (NIHR) Biomedical Research Centre."

"Trial registration number Clinicaltrials.gov NCT03743272, 16 November 2018."