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Table 1 Sequence parameters

From: Real-time assessment of right and left ventricular volumes and function in children using high spatiotemporal resolution spiral bSSFP with compressed sensing

  Standard BH technique Spiral real-time technique
Field of view (mm) 350 350
Rectangular field-of-view (%) 75 100
Matrix size 240 × 180 208 × 208
Number of slices ~ 13 (range: 10–17) ~ 13 (range: 10–17)
Image resolution (mm) 1.46 × 1.46 × 8 1.68 × 1.68 × 8
TE/TR (ms) 1.16/2.32 0.67/3.34
Flip Angle (degree) 67 67
Pixel Bandwidth (Hz/pixel) 1225 1502
Cardiac gating Retrospective
Temporal resolution (ms) 29.48 30.06
Reconstructed cardiac phases 40 ~ 24 (range: 20–37)
Trajectory Cartesian Spiral
Fully sampled spiral interleaves 72
GRAPPA ×2
Compressed Sensing ×8
Breath-hold time per slice (sec) 3.6–8.8
Total acquisition time for SAX (sec) ~ 350 (range: 239–573) ~ 20 (range: 11 to 36)
  1. BH, breath hold; TE, echo time; TR, repetition time, GRAPPA, generalized autocalibrating partially parallel acquisition