International Journal on Magnetic Particle Imaging IJMPI
Vol. 8 No. 1 Suppl 1 (2022): Int J Mag Part Imag

Short Abstracts

Demonstration of the new detection limit for the single-sided FFL MPI scanner with a surface gradiometer receive coils

Main Article Content

Chris McDonough (Physics Department, Oakland University, Rochester, MI USA), Alexey Tonyushkin (Oakland University)


Traditional MPI scanners utilize cylindrical bore geometry which prevents scaling up the scanner to accommodate human subject. Our single-sided MPI device utilizes a field-free line topology with a single drive coil and a surface receive coil that detects the response of nanoparticles. Common to all single-sided devices, however, excitation field results in saturation in the receive chain concealing the small SPIO response and impinging potential sensitivity gain. In this work we show how a surface gradiometer receive coil provides highest sensitivity to date and demonstrate a new detection limit in a single-sided scanner of 100 ng of iron.

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