Widely accessible, fast, and portable MR relaxometry can provide highly valuable diagnostic information in many diseases including fluid overload, dehydration, and muscle degeneration. High cost, large size, and extended acquisition time limit the use of traditional MRI for relaxometry.
We introduce a novel portable MR sensor with a large, remote, uniform magnetic field created by a Unilateral Linear Halbach array capable of performing spatially selective, multi-component relaxometry.
Strong agreement between simulation and experimental results indicates highly reliable magnet design methods. Spatial selectivity is achieved through variation of either RF pulse length or B1 frequency. Quantitative multi-component T2 relaxometry is demonstrated.
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