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In vitro T2*-weighted images of neural stem cells.
A-D. 250 neural stem cells in 2% gelatin tube (A), 5 × 103 neural stem cells (B), 5 × 104 neural stem cells (C), 2 × 105 neural stem cells (D). In B, C, and D, T2*-weighted images (TR/TE = 231/10 msec) show linear, hypointense cluster in bottom of tubes (arrows), representing SPIO-labeled neural stem cells.
