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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: J Magn Reson Imaging. 2020 Dec 9;55(1):81–99. doi: 10.1002/jmri.27411

FIGURE 4:

FIGURE 4:

Illustration of cardiovascular RT-MRI. (a) Real-time cine imaging using tiny-golden angle radial bSSFP sequence at 1.5T, with 12x undersampling and compressive sensing reconstruction (TE/TR = 1.3/2.7 msec, flip angle = 70°, in-plane resolution = 2.1 mm, 32 msec temporal resolution, 31 fps). A movie can be found in Movie S1 [Adapted from Ref. (91)]. (b) Real-time PCMR using perturbed spirals at 1.5T, with 18x undersampling and compressive sensing reconstruction. Top: Magnitude images, Bottom: Phase images (TE/TR = 1.9/6.7 msec, VENC = 200 cm/s, flip angle = 20°, in-plane resolution = 1.8 mm, 27 msec temporal resolution, 37 fps). A movie can be found in Movie S2 [Adapted from Ref. (94)]. (c) Real-time imaging of the fetal heart (shown by arrow in first column) demonstrating gross fetal movement. Golden-angle radial bSSFP sequence at 1.5T, with 27x undersampling and compressive sensing reconstruction (TR = 5.0 msec, flip angle = 70°, in-plane resolution = 1.0 mm, 74 msec temporal resolution, 14 fps). A movie can be found in Movie S3 [Adapted from Ref. (95)].