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Table 1 Study characteristics and MRI technical details

From: The role of MRI in axillary lymph node imaging in breast cancer patients: a systematic review

Technical MRI details
Author Year Study design Field strength Dedicated vs. covering* Coil Imaging sequences Contrast used Voxel size Image analysis
Yoshimura et al. 1999 P 1.5 T Dedicated 3-Inch circular SC T1w None 1.3 × 0.6 × 3.0 mm3 Short and long axis ratio and morphology
Kvistad et al. 2000 P 1.5 T Dedicated BC and extension to axilla T1w, dynamic T1w Gadodiamide 2.0 × 1.0 × 4.0 mm3 Normal diameter 2–3 mm, signal intensity time curves, morphology
Michel et al. 2002 P 1.5 T Dedicated Cardiac SC T1w, T2w, T2*w Ferumoxtran-10 T1w 0.9 × 0.9 × 3.5, T2w 0.4 × 0.4 × 3.5, T2*w 0.9 × 0.9 × 2.0 mm3 Size, shape, long-shirt axis ratio, USPIO uptake patterns
Harada et al. 2007 P 1.5 T Dedicated Cardiac surface coil T1w, T2*w, dynamic T2*w Ferumoxtran-10 0.63 × 1.25 × 0.5 mm3 Pre contrast: short axis >5 or >10 mm, replacement fatty hilum, irregular margins. USPIO: heterogeneous uptake or lack of uptake
Orguc et al. 2012 P 1.5 T Breast and axilla Not reported T2w, dynamic T1w Not reported Not reported Size, SI time curves
Fornasa et al. 2012 P 1.5 T Breast and axilla 4-Channel phased array coil T1w, T2w, dynamic T1w, DWI (b-value 0/800) Gadoterate meglumine T2w 1.3 × 1.3 × 4.0; T1w 1.1 × 1.3 × 4.0; dynamic T1w 1.4 × 1.4 × 1.8; DWI 5.3 × 5.3 × 4.0 mm3 Lymph node area, ADC
He et al. 2012 P 1.5 T Breast and axilla 8-Channel BC T1w, dynamic T1w, T2w, DWI (b-value 0/500/800) Gadopente-tate dimeglumine Dynamic T1w 1.1 × 1.1 × 2 mm3; DWI 2.7 × 2.7 × 4 mm3; T1w not reported (only ST: 5 mm) SI time curve, shape, margin, diameter, long/short axis ratio, node anatomical location, ADC values, high SI on DWI, early stage enhancement
Scaranelo et al. 2012 P 1.5 T Breast and axilla 8-Channel BC T1w, T2w, DWI (b-value 0/50/300/700/1000) None T1 0.7 × 0.9 × 1.2 mm3; (T2 not reported; DWI only ST: 4 mm) Shape, presence of fatty hilum, cortex irregular, lobulated margins, visual inspection of DWI and ADC
Hwang et al. 2013 R 1.5 T Breast and axilla 4-Channel BC T1w, T2w, DWI (b-value 750/1000), Dynamic T1w Gadopente-tate dimeglumine Not reported (only ST: T1w 3.4, T2w 2.6, DWI 3.4, Dynamic T1w 2.6 mm) Cortical thickening, irregular or round shape, loss of fatty hilum
Luo et al. 2013 P 1.5 T Breast and axilla 8-Channel BC T1w, T2w, DWI None T1w 1.0 × 0.7 × 1.0; T2w 1.1 × 1.1 × 4.03; DWI 1.0 × 0.7 × 6.0 mm3 Lymph nodes >4 mm, ADC values
Kamitani et al. 2013 R 1.5 T Breast and axilla Body coil T1w, dynamic T1w, T2w, DWI    
(b-Value 0/1000) Gadopente-tate dimeglumine T1w 0.93 × 0.93 × 4.0 mm3; DWI 2.8 × 4.1 × 5.0 mm3 (T2w not reported) Short axis, detectability on DWI       
Basara et al. 2013 P 1.5 T Breast and axilla 8-Channel BC CE-T1w, T2w, DWI    
(b-Value 0/600) Not reported DWI: 0.2 × 0.2 × 5.0 mm3; other sequences not reported Size, ADC       
Hieken et al. 2013 R 1.5 T Breast and axilla BC Dynamic T1w Gadobenate dimeglumine Not reported Cortical thickness >3 mm, asymmetric cortex, shape, unclear margins, perinodular oedema, loss or displacement of hilum, matting
Abe et al. 2013 P 1.5 T Breast and axilla BC T2w, dynamic T1w Gadodiamide 1.0 × 1.0 mm2, ST not reported Diffuse and asymmetrical cortical thickening, loss of hilum
Li et al. 2014 P 3.0 T Dedicated 12-Channel body coil T1w, T2w, T2*w None 0.8 × 0.8 × 3.0 mm3 T2* values
An et al. 2014 R 1.5 or 3.0 T Breast and axilla BC T2w, T1w, dynamic T1w Gadobutrol Both 1.5T and 3.0T; T2w ST 3 mm, dynamic unenhanced and CE T1w FOV 320 × 320, ST 3 mm Loss of fatty hilum, cortex thickness of >3 mm, irregular or round shape on T2w