Skip to main content
. Author manuscript; available in PMC: 2020 Nov 4.
Published in final edited form as: Pediatr Radiol. 2015 Jun 4;45(10):1455–1464. doi: 10.1007/s00247-015-3366-0

Fig. 7.

Fig. 7

Standard vs. optimized imaging sequences in a 28-year-old woman with two platinum stents in the aortic isthmus and proximal descending aorta. Imaging is in the parasagittal plane. a Standard SSFP cine (TR/TE 2.7/1.08 ms, acceleration factor 2, voxel size 0.8×0.8×6-mm reconstructed, breath-hold time 9.6 s). b Optimized SSFP cine (TR/TE 2.7/1.14 ms, acceleration factor 2, voxel size 0.8×0.8×6-mm reconstructed, breath-hold time 9.6 s). c Optimized GRE cine (TR/TE 3.82/1.69 ms, acceleration factor 2, voxel size 0.8×0.8×6-mm reconstructed, breath-hold time 12 s. d Standard TSE (TR/TE 740/31 ms, voxel size 1.4×1.4×4 mm, breath-hold time 9.6 s). e Optimized TSE (TR/TE 656/29 ms, voxel size 1.4×1.4×4 mm, breath-hold time 9.6 s). In (a) and (b), as the SSFP bandwidth increases the artifact size decreases and image quality improves. In (c), the dephasing artifact decreases significantly with GRE imaging with a receiver bandwidth of 1,488 Hz/pixel, flow compensation off and weak asymmetrical echo. In (d) and (e) improvement in artifact size is seen with fat saturation off and bandwidth of 781 Hz/pixel. GRE gradient recalled echo, SSFP steady-state free precession, TE echo time, TR repetition time, TSE turbo spin echo