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. Author manuscript; available in PMC: 2011 Aug 19.
Published in final edited form as: Magn Reson Med. 2010 Feb;63(2):427–437. doi: 10.1002/mrm.22241

Figure 7.

Figure 7

The GRE, bSSFP, and PARTS sequences were used to image an agarose gel phantom with tubes containing different numbers of SPIO-labeled cells at 1.5 T. The numbers of cells are marked in millions on the GRE image for each tube. PARTS achieves superior background suppression compared to bSSFP for both tip angles (5° and 15°). While the bSSFP background signal increases with α = 15°, PARTS successfully maintains the near-complete background suppression. Finally, higher SNR is achieved with α = 15° for PARTS. It is important to note that hyperintense signal is also generated at the edges of the cylindrical phantom due to the strong susceptibility drifts.