Prototype phantoms for characterization of ultralow field magnetic resonance 
imaging

Boss, MA; Mates JAB, Busch SE, SanGiorgio P, Russek SE, Buckenmaier, K; Irwin KD, Cho H-M, Hilton, GC; Clarke, J

doi:10.1002/mrm.25060

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Prototype phantoms for characterization of ultralow field magnetic resonance imaging

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Mates JAB, Busch SE, SanGiorgio P, Russek SE, Buckenmaier, K
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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引用

Boss, M., Mates JAB, Busch SE, SanGiorgio P, Russek SE, Buckenmaier, K., Irwin KD, Cho H-M, Hilton, G., & Clarke, J. (2013). Prototype phantoms for characterization of ultralow field magnetic resonance imaging. Magnetic Resonance in Medicine, Epub ahead. doi:10.1002/mrm.25060.

引用: https://hdl.handle.net/11858/00-001M-0000-001A-1496-A

要旨

Purpose Prototype phantoms were designed, constructed, and characterized for the purpose of calibrating ultralow field magnetic resonance imaging (ULF MRI) systems. The phantoms were designed to measure spatial resolution and to quantify sensitivity to systematic variation of proton density and relaxation time, T1. Methods The phantoms were characterized first with conventional magnetic resonance scanners at 1.5 and 3 T, and subsequently with a prototype ULF MRI scanner between 107 and 128 inline image. Results The ULF system demonstrated a 2-mm spatial resolution and, using T1 measurements, distinguished aqueous solutions of MnCl2 differing by 20 inline image [Mn2+]. Conclusion The prototype phantoms proved well-matched to ULF MRI applications, and allowed direct comparison of the performance of ULF and clinical systems.