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Table 1 Characteristics of inclusion articles

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

Author Year Nation Design No. of patients and nodes b value (s/mm2) Field strength (T) ADC cutoff (×10−3mm/s2) Mean ADC of metastases (×10−3mm/s2) Mean ADC of benign (×10−3mm/s2) Coil Reference standard tp fp fn tn
Nakai 2011 Japan NG 16, 216 0, 800 1.5 NG 1.04 1.22 Cardiac surface Histopathologically 30 4 6 176
Kamitani 2012 Japan Retro 108, 110 0, 1000 1.5 1.05 1.08 0.92 Body Histopathologically 14 11 12 73
Fornasa 2013 Italy Prosp 43, 43 0, 800 1.5 1.09 0.88 1.4 4-channel phased array Histopathologically 18 2 1 22
He 2013 China NG 136, 1242 500 1.5 1.68 1.37 1.77 8-channel phased array breast Biopsy or surgical resection 138 498 4 602
800 1.35 1.18 1.55 134 376 8 724
Luo 2013 China NG 36, 79 0, 800 1.5 0.889 0.79 1.04 8-channel phased array breast Histopathologically 37 6 8 28
Chung 2013 South Korea NG 110, 110 0, 1000 1.5
3.0
0.9 0.69 1.04 4-channel phased array breast Histopathologically 68 26 22 136
Kim 2014 South Korea Retro 252, 253 0, 750 1.5 0.986 0.91 1.27 Bilateral breast surface Biopsy 69 26 22 136
Schipper 2014 Netherlands Prosp 50, 135 0, 500
800
3.0 0.65 0.72 0.75 32-channel cardiac sensitivity encoding Histopathologically 14 46 8 67
Yamaguchi 2014 Japan NG 16, 52 0, 800 1.5 0.852 0.75 1.03 Breast Biopsy 13 3 3 17
Razek 2015 Egypt Prosp 34, 65 0, 500
1000
1.5 1.30 1.08 1.15 8-channel breast Histopathologically 41 0 3 21
  1. tp true positive, fp false positive, fn false negative, tn true negative, NG not given, Prosp prospective, Retro retrospective