Keywords: Low-Field MRI, Low-Field MRI, Field-Cycling
Motivation: Field-cycling imaging is a new imaging technique that allows access to new imaging biomarkers. To allow investigation of clinical applications a high performance and patient acceptable scanner is needed.
Goal(s): We have constructed a new clinical-grade resistive field-cycling imaging system operating at 0.2 T with a 60 cm bore and high performance gradient and magnet amplifiers, with a custom made outer covering.
Approach: The system is in the late stage of commissioning. The field homogeneity and temporal stability have been assessed.
Results: The final system is visually attractive and has < 1 ppm temporal stability and < 8 ppm field homogeneity.
Impact: This system will allow us to investigate the clinical utility of field-cycling and low-field imaging in a much larger patient population. The high performance gradient amplifiers will enable much faster imaging, which will enable new possibilities for new sequence development.
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