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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: NMR Biomed. 2016 Aug 5;29(10):1373–1380. doi: 10.1002/nbm.3579

Table 2.

Mean and standard deviation of T2*PW, T2*BW, PW fraction and BW fraction from bi-component fitting of 2D UTE, 3D UTE, 2D IR-UTE and 3D IR-UTE imaging of six bovine cortical bone samples, as well as six healthy volunteers.

Cortical Bone T2* Measurements T2*PW T2*BW T2*PW
Fraction		 T2*BW Fraction
Bovine Cortical Bone 2D UTE Single-Echo 2.12 ± 0.14 ms 0.25 ± 0.03 ms 20.6 ± 3.1% 79.4 ± 3.1%
Bovine Cortical Bone 2D IR-UTE Single-Echo - 0.27 ± 0.03 ms - 100%
Bovine Cortical Bone 3D UTE Single-Echo 4.16 ± 0.42 ms 0.26 ± 0.04 ms 21.5 ± 3.6% 78.5 ± 3.6%
Bovine Cortical Bone 3D UTE Dual-Echo 4.24 ± 0.46 ms 0.26 ± 0.04 ms 23.9 ± 3.4% 76.1 ± 3.4%
Bovine Cortical Bone 3D IR-UTE Single-Echo - 0.29 ± 0.05 ms - 100%
Volunteer Tibia Mid-shaft 3D UTE Dual-Echo 5.78 ± 1.24 ms 0.34 ± 0.08 ms 31.2 ± 6.1% 68.8 ± 6.1%
Volunteer Tibia Mid-shaft 3D IR-UTE Single-Echo - 0.37 ± 0.09 ms - 100%