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Table 1 Typical imaging parameters for BH-2D (breath hold 2D radial SSFP), BH-SOS (breath hold 3D stack-of-stars SSFP) and FB-NS-SOS (navigator gated free breathing non-selective 3D stack-of-stars SSFP). Scan time values with asterisk assume 100% navigator gating efficiency

From: Radial-based acquisition strategies for pre-procedural non-contrast cardiovascular magnetic resonance angiography of the pulmonary veins

 

BH-2D

BH-SOS

FB-NS-SOS

FB-NS-Cartesian 3D

Scan time (s) for heart rate of 60 bpm

18

16

312*

312*

Acquisition window (ms)

327

327

118

118

Respiratory control

5 BH

9 to 11 BH

Free breathing

Free breathing

CMR acquisition type

2D

3D

3D

3D

Acquired/reconstructed slice thickness (mm)

1.5/1.5

1.3/0.65

1.8/0.9

1.8/0.9

Slice gap in each breath-hold acquisition

200%

n/a

n/a

n/a

Slice oversampling (%)

n/a

50

0

0

Slabs

n/a

9–11 (1 per BH)

1

1

Slices per slab

n/a

24

208

208

Partial Fourier (slice)

n/a

7/8

6/8

6/8

ipat factor

n/a

n/a

n/a

3

Shots per slice

1

1

2

2

Excitation

Slice selective

Slab selective

Non-selective

Non-selective

TR (ms)

3.3

3.4

2.4

2.4

TE (ms)

1.67

1.69

1.2

1.2

Flip angle (degrees)

95

95

90

90

Matrix

160

160

176

224

Field of view (mm)

320

350

320

400

Reconstructed in-plane spatial resolution

1.0

1.1

0.9

0.9

Bandwidth (Hz/pixel)

1359

1302

1420

1395

  1. n/a not applicable; CMR cardiovascular magnetic resonance; TE echo time; TR repetition time