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Table 2 Results of the evaluation of each study according to QUADAS-2

From: The Diagnosis of Metastatic Axillary Lymph Nodes of Breast Cancer By Diffusion Weighted Imaging: a meta-analysis and systematic review

 

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Score

Nakai

+

+

+

?

+

+

+

+

?

?

?

+

+

+

10

Kamitani

+

+

+

?

+

+

+

+

−

?

?

+

+

+

10

Fornasa

+

+

+

+

+

+

+

+

?

?

?

+

+

+

11

He

+

+

+

?

+

+

+

+

+

?

?

+

+

+

11

Luo

+

+

+

?

+

+

+

+

?

?

?

+

+

+

10

Chuang

+

+

+

?

+

+

+

+

+

+

?

+

+

+

12

Kim

+

+

+

+

+

+

+

+

?

+

?

+

+

+

12

Schipper

+

+

+

+

+

+

+

+

+

?

+

+

+

+

13

Yamaguchi

+

+

+

?

+

+

+

+

+

?

?

+

+

+

11

Razek

+

+

+

+

+

+

+

+

+

?

?

+

+

+

12

  1. + = no bias; − = potential bias; ? = bias unclear; 1 = representative spectrum?; 2 = selection criteria clearly described?; 3 = acceptable reference standard?; 4 = time interval between MRI and pathology?; 5 = partial verification avoided?; 6 = differential verification avoided?; 7 = incorporation avoided?; 8 = description execution of DW-MRI?; 9 = description execution of pathology?; 10 = pathology results blinded?; 11 = DW-MRI results blinded?; 12 = clinical data available as in practice?; 13 = uninterpretable results reported?; 14 = withdraw explained?