Keywords: Low-Field MRI, Relaxometry
Quantitative T1 mapping has proven useful in several clinical applications, nevertheless it is not widely deployed as it generally suffers from long acquisition times. This problem is exacerbated at low magnetic fields, due to inherent lower sensitivity. In spite of more favourable magnetisation properties (e.g., shorter recovery times, higher dispersion), exotic acquisition strategies and reconstruction pipelines are key to make quantitative MRI at low field fast, and compatible with clinical routines. Here, we present a low-rank matrix completion-based reconstruction method applied to heavily undersampled Look-Locker data for accelerated T1 mapping at 0.1 T.
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