Table 1: Cervical cancer MRI parameters.

 

Sequence

Axial T1

Sag T2

Axial T2

Axial T2

Axial DWI

BOLD

Sag T2

Axial T1

Axial T1

Axial T1

Fat saturated

No

Yes

No

Yes

Yes

Yes

Yes

Yes

Time after contrast

40 seconds

90 seconds

180 sec

Sequence

FSE

FRFSE

FRFSE

FRFSE

Echoplanar

FRFSE

SPGR

SPGR

Fast Spin Echo

# of dimensions

2D

2D

2D

2D

2D

2D

2D

3D

3D

2D

TE (msec)

9

90

86

90

81

6.8-56.2 ms (16 echoes,  ∆TE = 2.3 ms)

90

1.8

1.8

9

TR (msec)

600

3400

3400

3800

12000

87

3800

3.8

3.8

600

Echo Train Length

4

21

21

21

21

InvPrep

TI = 20

InvPrep

TI = 20

ETL 4

Flip angle (degrees)

90

90

90

90

90

40

90

12

12

90

Number of excitations

4

3

3

2

8

1

2

1

1

2

FOV (cm)

26

26

26

34

32

32

32

28

28

32

Slice thickness/interval (mm)

5/1.5

5/1.5

5/1.5

1-Jun

4/0.5

4/0.5

5/1.5

4.6

4.6

6/1

Matrix size

256 x 224

320 x 256

320 x 256

320 x 256

128 x 128

256 x 256

256 x 224

256 x 192

256 x 192

256 x 192

b Value (sec/mm2)

0, 500

 

Note:  Abbreviations: fast spin echo (FSE), fast recovery fast spin echo (FRFSE), spoiled gradient echo (SPGR)