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Table 1

From: Rapid flow assessment of congenital heart disease using high spatio-temporal gated spiral phase-contrast MR

 

Free-Breathing PCMR

Standard Breath-hold PCMR

Spiral Breath-hold PCMR

TE/TR (ms)

~2.2 / 7.0

~2.2 / 7.0

2.1 / 8.0

Spiral Readouts

-

-

36

Acceleration factor

2 (GRAPPA)

2 (GRAPPA)

3 (SENSE)

Matrix Size

256 x 192

192 x 113

256 x 256

FOV (mm)

200 - 400

290 - 400

400

Rectangular FOV (%)

75

66

100

Readouts per segment

3

4

2

Pixel bandwidth (Hz/pixel)

543

543

1220

VENC (cm/s)

180 - 400

180 - 400

180 - 400

NSAs

3

1

1

Gating

Retrospective

Retrospective

Prospective

Total Scan Duration (s)

44 - 144

11 - 24

3 - 8

Voxel Size (mm)

~ 0.8 - 1.5

~ 1.5 - 2.1

1.6

Temporal resolution

~ 30.0 ms

~ 40.0 ms

32.0 ms