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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: J Magn Reson Imaging. 2019 Dec 18;52(1):117–128. doi: 10.1002/jmri.27004

TABLE 2.

In Vitro Pulsatile Flow and in vivo Human Subject Scan Parameters

Stenotic phantom (Qmax = 130 mL/s) Stenotic phantom (Qmax = 150 mL/s) Aortic arch phantom (Qmax = 150 mL/s) Patient/volunteer
Field of view (mm3) 100*100*60 100*100*48 125*125*170 200*200*50
Resolution (mm) 1.56*1.56*3 1.5*1.5*4 2*2*5 2.5*2.5*5
Matrix size 64*64 68*68 64*64 80*80
Flip angle (°) 12 8 8 8
Triggering frequency (mm−1) 72 34 40 Varies
Number of phases 16 15 18 16
Cartesian readout TE/TR (msec) 4.3/12 4.2/14 3.6/11 2.8/Varies
Readout time (msec) 3.4 .3.5 3.1 2.1
Systole Venc (cm/s) 400 or 250 300 200 400
Diastole Venc (cm/s) 100 — 140 —
Venc switch time (msec) 340 — 800 —
Scan time(mm:ss) 27:46 9:44 70:25 7:27
Spiral readout TE/TR (msec) 2.3/12 2.4/14 2/11 2.3/Varies
Readout time (msec) 4 4 4 4
Numbet of interleaves 36 32 32 16
Systole Venc (cm/s) 400 or 250 300 200 400
Diastole Venc (cm/s) 100 90 140 100
Venc switch time (msec) 340 850 800 Varies (default = 400)
Scan time (mm:ss) 15:38 7:05 35:14 3:00

In each case, the Venc was specified via a prior 2D through plane phase-contrast scan. In the table Qmax represents the maximum rate in the prescribed flow waveform. Please note that the scan time for human subjects stated in this table do not take into account respiratory gating, which in general increase the stated times by 3 times or more (depending on individual subjects’ gating efficiency).