MR image intensity non-uniformity is often observed at 7T. A novel algorithm termed ‘Uniform Combined Reconstruction’ (UNICORN) was developed recently to correct for intensity non-uniformity in MR images without the use of a calibration/reference scan. In this work, 3 fellowship trained musculoskeletal radiologists with cumulative experience of 42 years evaluated the efficacy of UNICORN in 33 7T musculoskeletal MRI volumes. The uniformity, contrast, signal-to-noise-ratio and overall image quality were evaluated. Without the use of a reference scan, UNICORN was rated to provide better image uniformity, contrast and overall image quality than the N4 bias-field correction algorithm at 7T.
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