Abstract #4509

Comparison of Cylindrical and Spherical Geometric Models to Infer Cell Sizes in a Garlic Stem

Melissa Sarah Lillian Anderson¹, Henri Sanness Salmon¹, Guneet Uppal^1,2, Jarrad Perron³, Lisa Bako⁴, Gong Zhang⁵, Sheryl Lyn Herrera^1,6, and Melanie Martin¹

¹Physics, University of Winnipeg, Winnipeg, MB, Canada, ²University of Manitoba, Winnipeg, MB, Canada, ³Physics, University of Manitoba, Winnipeg, MB, Canada, ⁴Cubresa, Inc., Winnipeg, MB, Canada, ⁵Brain Engineering Centre, Anhui University, China Physics, University of Winnipeg, Winnipeg, MB, Canada, ⁶Cubresa, Winnipeg, MB, Canada

Temporal diffusion spectroscopy (TDS) can be used to infer sizes of cells in samples. It relies on a geometric model to relate the MRI signal to the cell sizes. Garlic stem collenchyma tissue has long cells which might be modelled as cylinders. We compared a cylindrical and spherical geometric model in temporal diffusion spectroscopy to determine how important the geometrical model was for garlic stems. The inferred diameters of cells in the garlic stem (4μm-6μm) were not statistically different when using the two different geometric models. This is the first step toward understanding the importance of geometric models for TDS.

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