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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: J Magn Reson Imaging. 2014 Jul 16;41(4):870–883. doi: 10.1002/jmri.24713

Figure 5.

Figure 5

Axial MR images through the leg of a healthy volunteer. Clinical gradient echo sequence (A) shows a signal void in the region of the tibial cortex (arrow). The UTE sequence (B) shows slightly higher signal from the tibial cortex (arrow), but poor contrast due to the high signal from the surrounding muscle and fat which limit the dynamic range for cortical bone. The IR-UTE sequence (C) selectively suppresses signal from fat and muscle creating high contrast for the short T2* components of cortical bone (arrow). An eraser (dashed arrows) with known T1 and T2* values (approximately 200 ms and 300 μs, respectively) was placed for reference.