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Table 2 The fMRI scanner and image-acquisition protocol information of the in-house dataset

From: Impaired time-distance reconfiguration patterns in Alzheimer's disease: a dynamic functional connectivity study with 809 individuals from 7 sites

 

Site 1

Site 2

Site 3

Site 4

Site 5

Site 6

Site 7

Field of strength (T)

3.0

3.0

3.0

3.0

3.0

3.0

3.0

Brand

Siemens Skyra

GE Signa HDx

Siemens Trio Tim

Siemens Verio

Siemens Trio Tim

Siemens Trio Tim

Siemens Skyra

Number of head coil channels

20

8

20

8

12

8

20

Protocol name

EPI

EPI

EPI

EPI

EPI

EPI

EPI

Repetition time (s)

2

2

2

2

2

2

2

Echo time (ms)

30

30

25

30

40

30

30

Flip angle

90

90

90

90

90

90

90

Field of view

220 × 220

220 × 220

240 × 240

220 × 220

256 × 256

220 × 220

220 × 220

Matrix

64 × 64

64 × 64

64 × 64

64 × 64

64 × 64

64 × 64

64 × 64

Slice number /thickness (gap)

36 / 3 (0.9)

30 / 3 (1)

30 / 3 (1)

36 / 3 (0.99)

28 / 4 (1)

32 / 3 (0.99)

36 / 3 (0.9)

Scan duration (s)

480

400

360

360

478

360

480