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. Author manuscript; available in PMC: 2016 Nov 8.
Published in final edited form as: APSIPA Trans Signal Inf Process. 2016 Mar 31;5:e6. doi: 10.1017/ATSIP.2016.5

Table 1.

Technical details of four extensively used rtMRI sequences

Sequence 1 Sequence 2 Sequence 3 Sequence 4

Magnetic field strength 1.5 Tesla 1.5 Tesla 1.5 Tesla 1.5 Tesla
Gradients ZOOM ZOOM ZOOM ZOOM
Spatial gradient Max. amplitude 22 mT/m 40 mT/m 40 mT/m 40 mT/m
waveform design Max. slew rate 77 T/m/s 150 T/m/s 150 T/m/s 150 T/m/s
Coil 4-channel 4-channel 4-channel 8-channel
Slice thickness 5 mm 5 mm 5 mm 6 mm
Readout duration (Tread) 2.552 ms 2.520 ms 2.584 ms 2.520 ms
Repetition time (TR) 6.164 ms 6.004 ms 6.028 ms 6.004 ms
Field of view (FOV) 20 cm × 20 cm 20 cm × 20 cm 20 cm × 20 cm 20 cm × 20 cm
Spatial resolution 3.0 mm × 3.0 mm 2.4 mm × 2.4 mm 3.0 mm × 3.0 mm 2.4 mm × 2.4 mm
Pixel dimension 68 × 68 84 × 84 68 × 68 84 × 84
Number of interleaves 13 13 9 2 (Golden angle interleaving)
Relative SNR efficiency 1.00 0.63 0.83 (Not assessed)
Time to acquire full image 80.1 ms 78.1 ms 54.3 ms 12 ms
View-sharing TR-increment 7 7 5 (No view-sharing)
Reconstruction frame-rate 23.18 fps 23.79 fps 33.18 fps 83 fps