Spiral UTE is a relatively new MRI technique that combines ultra-short echo time acquisition with a stack-of-spirals trajectory for imaging the lung. In this work, we aimed to analyze the motion sensitivity of different reordering schemes and breath holding positions in spiral UTE MRI to determine the optimized protocol for imaging the lungs. A blind assessment was performed by three experienced chest radiologists and the results were analyzed with statistical tests. The Spiral UTE with line-in-partition reordering performed during the inspiration phase was considered the best protocol in our study.
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