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Table 1 Scan parameters of conventional and SMS scans

From: Simultaneous multi-slice MR imaging of the hip at 3 T to reduce acquisition times and maintain image quality

 

Conventional

SMS

PDW

T1W

FS-T2W

PDW

T1W

FS-T2W

AT

4:36

3:42

3:58

2:22

2:17

2:56

Total AT

12:16

7:35

TR (ms)

2000

712

3500

2000

650

3500

TE (ms)

20

27

61

21

14

62

Averages

1

2

2

1

1

2

Concatenations

2

3

2

1

2

1

Flip angle (deg)

150

120

150

150

120

150

Fat suppression

none

none

CHESS

none

none

CHESS

Base resolution

320

384

320

320

384

320

Phase resolution (%)

100

75

70

100

75

70

Parallel imaging

none

GRAPPA

GRAPPA

CAIPIRINHA

CAIPIRINHA

CAIPIRINHA

Acceleration factor phase

–

2

2

1

1

1

Acceleration factor slice

–

–

–

2

2

2

FOV shift factor

–

–

–

2

2

2

Bandwidth (Hz/Px)

240

250

220

240

250

279

  1. PDW proton-density weighted, T1W T1-weighted, FS-T2W fat-saturated T2-weighted, SMS simultaneous multi-slice, AT acquisition time, TR repetition-time, TE echo time, GRAPPA generalized auto calibrating partially parallel acquisitions, CAIPIRINHA controlled aliasing in parallel imaging results in higher acceleration, CHESS chemical shift selective, FOV field-of-view
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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