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Table 2 Estimated Performance of MRI for extramural venous invasion

From: MRI-detected extramural venous invasion of rectal cancer: Multimodality performance and implications at baseline imagingĀ and after neoadjuvant therapy

Authors

Year

No. of patients

No. of readers

Pulse sequences

Sensitivity

Specificity

Inter-observer agreement

Before neoadjuvant therapy

Smith [22]

2008

142

1

T2WI

0.62

0.88

NA

Koh [23]

2008

79

NA

T2WI

1.00

0.89

NA

Sohn [24]

2015

447

NA

T2WI

0.282

0.94

NA

Jhaveri [26]

2016

49

2

T2WI, CE-T1WI

T2WI alone: 0.43ā€“0.50

T2WIā€‰+ā€‰CE-T1WI: 0.57

T2WI alone: 0.96ā€“1.00

T2WIā€‰+ā€‰CE-T1WI: 0.96

T2WI alone: 0.828

T2WIā€‰+ā€‰CE-T1WI: 0.858

Liu [27]

2016

183

2

T2WI

0.617

0.820

0.780

Yu [28]

2016

86

2

T2WI

0.583

0.920

0.803

Lee [29]

2018

200

2

T2WI

0.9048

0.4114

0.801

Liu [30]

2016

59

2

T2WI, CE-T1WI

T2WI alone: 0.500ā€“0.722

CE-T1WI alone: 0.556 T2WIā€‰+ā€‰CE-T1WI:0.778ā€“0.833

T2WI alone: 0.732ā€“0.780

CE-T1WI alone: 0.659ā€“0.683 T2WIā€‰+ā€‰CE-T1WI: 0.732ā€“0.756

T2WI alone: 0.603

CE-T1WI alone: 0.216 T2WIā€‰+ā€‰CE-T1WI: 0.413

Ahn [32]

2019

79

2

T2WI, DWI

T2WI alone: 0.80ā€“0.85

T2WI alone: 0.53ā€“0.75

T2WI alone: 0.704

Ā Ā Ā Ā Ā 

T2WIā€‰+ā€‰DWI: 0.90

T2WIā€‰+ā€‰DWI: 0.54ā€“0.66

T2WIā€‰+ā€‰DWI: 0.611

Bae [31]

2019

147

3

T2WI, CE-T1WI

T2WI + CE-T1WI: 0.720ā€“0.840

T2WI + CE-T1WI: Ā 0.454ā€“0.856

T2WI + CE-T1WI: 0.376ā€“0.693

Fornell-Perez [45]

2020

54

3

T2WI, DWI

T2WI alone: 0.571

T2WIā€‰+ā€‰DWI: 0.476

T2WI alone: 0.759

T2WIā€‰+ā€‰DWI: 0.872

T2WI alone: 0.483

T2WIā€‰+ā€‰DWI: 0.438

After neoadjuvant therapy

Jhaveri [26]

2016

20

2

T2WI, CE-T1WI

T2WI alone: 0.29

T2WI alone: 0.95ā€“1.00

T2WI alone: 0.781

Ā Ā Ā Ā Ā 

T2WIā€‰+ā€‰CE-T1WI: 0.43ā€“0.57

T2WIā€‰+ā€‰CE-T1WI: 0.95

T2WIā€‰+ā€‰CE-T1WI: 0.604

Lee [29]

2018

200

2

T2WI

0.7619

0.7975

0.736

Fornell-Perez [45]

2020

46

3

T2WI, DWI

T2WI alone: 0.667

T2WIā€‰+ā€‰DWI: 0.778

T2WI alone: 0.829

T2WIā€‰+ā€‰DWI: 0.915

T2WI alone: 0.372

T2WIā€‰+ā€‰DWI: 0.361

Bae [31]

2019

75

3

T2WI, CE-T1WI

T2WI + CE-T1WI: 0.667ā€“0.792

T2WI + CE-T1WI: 0.490ā€“0.922

T2WI + CE-T1WI: 0.383ā€“0.693

  1. CE-T1WI, contrast enhanced T1-weighted image; DWI, diffusion-weighted image; T2WI, T2-weighted image