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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Magn Reson Med. 2018 Jan 3;80(2):598–608. doi: 10.1002/mrm.27066

Table 1.

Sequence parameters of phantom, bovine cortical bone sample and in vivo tibial cortical bone studies.

3D UTE-Cones AFI 3D UTE-Cones VTR 3D UTE-Cones VFA
Phantom FOV = 15×15×12.8 cm3,
Matrix = 128×128×32,
TR1/TR2 = 20/100 ms, flip angle = 45°, bandwidth = 125 kHz, scan time = 8 min 55 sec		 FOV = 15×15×12.8 cm3,
Matrix = 128×128×32,
TR = 20, 40, 60, 80 and 120 ms, flip angle = 45°,
bandwidth = 125 kHz, total scan time = 21 min 20 sec		 FOV = 15×15×12.8 cm3,
Matrix = 128×128×32,
TR = 24 ms, flip angle = 8°, 26° and 45°,
bandwidth = 125 kHz, total scan time = 5 min 21 sec
Bovine cortical bone 3D UTE-Cones AFI 3D UTE-Cones VTR
FOV = 15×15×6.4 cm3,
Matrix = 128×128×16,
TR1/TR2 = 20/100 ms, flip angle = 45°,
bandwidth = 125 kHz, scan time = 4 min 40 sec		 FOV = 15×15×6.4 cm3,
Matrix = 128×128×16,
TR = 15, 30, 50 and 80 ms, bandwidth = 125 kHz, total scan time = 6 min 41 sec
In vivo tibial cortical bone 3D UTE-Cones AFI 3D UTE-Cones VTR
FOV = 15×15×16.8 cm3,
Matrix = 128×128×24,
TR1/TR2 = 20/100 ms, flip angle = 45°, bandwidth = 250 kHz, scan time = 7 min 5 sec		 FOV = 15×15×16.8 cm3,
Matrix = 160×160×24,
TR = 15, 30, 50, and 80 ms, flip angle = 45°, bandwidth = 250 kHz, total scan time = 12 min 24 sec