Abstract #1427

SNR of Flexible Versus Rigid Coil Arrays for Knee MRI

Jeremiah Hess¹, Marianne Black², Feliks Kogan², and Brian Hargreaves^1,2,3

¹Department of Bioengineering, Stanford University, Stanford, CA, United States, ²Department of Radiology, Stanford University, Stanford, CA, United States, ³Department of Electrical Engineering, Stanford University, Stanford, CA, United States

Flexible extremity coil-arrays for knee imaging in MRI can improve coil positioning and comfort to patients in the scanner and wrap tightly around the knee, placing coil elements close to anatomy of interest. Despite this, flex coils have not been widely adapted due to perceived superiority of the SNR of transmit-receive coils. In this study, we analyzed the SNR of flex coil-arrays versus a rigid coil-array in phantom and in vivo to determine which coil-arrays had improved SNR. Preliminary results suggest that flexible coil-arrays show comparable or increased SNR and generally more uniform SNR over rigid coil-arrays.

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