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Table 1 Scan parameters

From: Locally advanced rectal cancer: 3D diffusion-prepared stimulated-echo turbo spin-echo versus 2D diffusion-weighted echo-planar imaging

 

FOV

(AP × RL × FH)

(mm3)

Resolution

(AP × RL × FH)

(mm3)

SENSE

Fat suppression

Scan mode

Echo train length

TR / TEa (ms)

Total scan duration

DW-EPI

256 × 256 × 99

2.3 × 2.3 × 3

2 (RL)

SPAIR

Multislice 2D

55

5469 / 66

3 min 33 s

DPsti-TSE

256 × 264 × 99

2.3 × 2.3 × 3

2 × 1.4(RL × FH)

SPAIR

3D

50

2500 / 18

6 min 55 s

T2W

200 × 281 × 126

0.7 × 0.7 × 3

none

none

Multislice 2D

30

5953 / 120

5 min 33 s

 

Profile order

Half scan

Diffusion mixing time (ms)

M1 nulled diffusion gradient

b value (s/mm2)

Diffusion direction

Average

DW-EPI

Linear

0.618

59

No

200, 1000

Orthogonal

4 (b = 200 s/mm2)

8 (b = 1000 s/mm2)

DPsti-TSE

Low-high;

Turbo Z

0.8 × 0.9

(RL × FH)

62

Yes

200, 1000

[1, 1, 1]

2 (b = 200 s/mm2)

8 (b = 1000 s/mm2)

T2W

Linear

None

--

--

--

--

1

  1. 2D Two-dimensional, 3D Three-dimensional, DPsti-TSE Diffusion-prepared stimulated echo turbo spin-echo, DW-EPI Diffusion-weighted echo-planar imaging, FOV Field of view, SENSE SENSitivity Encoding, SPAIR Spectral attenuated inversion recovery fat suppression, TE Echo time, TR Repeation time
  2. aTE for DPsti-TSE does not include the diffusion mixing time. TE for DW-EPI measurement includes the diffusion mixing time