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Abstract #3583

Design of an asymmetric spiral RF coil for RF spatial encoding

Yonghyun Ha1, Kartiga Selvaganesan1, Kasey Hancock1, Gigi Galiana1, and R. Todd Constable1
1Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT, United States


Gradients in B1 can be useful as a source of spatial encoding for low-field MRI. Here, an asymmetric spiral surface coil is introduced that generates an RF gradient around the coil. Simulations have shown that the shape of the B1 field can be controlled by adjusting the spacing between the wires. The measured B1 field of the asymmetric spiral coil shows that the RF gradient is generated near the coil as shown in the simulation results.

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