Skip to main content

Table 3 MRI protocols used for 2D PC MRI and 4D Flow MRI acquisition

From: In vitro evaluation of cerebrospinal fluid velocity measurement in type I Chiari malformation: repeatability, reproducibility, and agreement using 2D phase contrast and 4D flow MRI

Parameter

2D PC MRI

4D Flow MRI

Spatial resolution

1.5 × 1.5 × 3

1.5 × 1.5 × 1.5

FOV [mm]

150 × 180

150 × 180x40

Number of heart phases

16

16

Parallel Imaging

No

2

Sym. Enc

Yes

Yes

Halfscan

No

0,75/1

Partial Echo

No

No

TR

5.5

7.5

TE

3.9

4.6

Flip angle

10

5

RF Spoiling

Yes

Yes

Scan Time

32 s

14 m35 s

BW

866

866

VENC

15

15

k-space segmentation factor

2

1

Trigger delay

7 ms

7 ms

Distortion correction

Yes

Yes