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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Magn Reson Med. 2014 Sep 24;72(6):1522–1529. doi: 10.1002/mrm.25477

Table 1.

Summary of imaging parameters for QISS and UnQISS.

Parameter QISS UnQISS
Sampling bandwidth 658 Hz/pixel 651 Hz/pixel
Cardiac gating ECG None
Shot TR RR interval 2400 ms
Intra-view TR 3.8 ms 3.5 ms
TI/QI 350 ms/228 ms 1800 ms/1200 ms
Spatial resolution 3 mm × 1mm × 1mm 3 mm × 1mm × 1mm
K-space trajectory Cartesian Radial using optimized azimuthal view angles
Acceleration GRAPPA 2, 5/8 partial Fourier None
Venous suppression Sinc RF pulse, 100 mm thickness FOCI RF pulse, 200 mm thickness
In-plane suppression Sinc RF pulse, 6 mm thickness FOCI RF pulse, 6 mm thickness
Fat suppression Chemical shift selective RF pulse Phase-based
RF coils Phased array coils Body coil or phased array coils
Scan time/station 48 sec for RR of 1 sec (depends on heart rate) 115 sec (independent of heart rate)