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 |