Novel Method to Improve the Uniformity of 7T Body MR Images

Figure 2

Geometrical models and multiple ROIs used in this study: (a) 16-channel transmit array (ID = 620 mm and length = 620 mm), RF shield (ID = 827 mm, length = 845 mm), and cylindrical uniform phantom (ID = 540 mm, length = 620 mm, σ = 0.79 S/m, and ε_r = 59.0 (ave. muscle at 300 MHz)) at 7.0 T MRI; (b) multiple ROIs considering wavelength and electromagnetic properties of sample (inner rod (red arrow) width of 30 mm and outer rod (white arrow) width of 60 mm); (c, d) with human body model of Ella.

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