Table 1 Characteristics of mammograms and of women with raw–processed image pairs and SFM–digital image pairs
Raw–processed image pairs | Processed digital–SFM pairs | ||||||
|---|---|---|---|---|---|---|---|
Set H1 | Set H2 | Set H3 | Set G1 | Set G2 | Set F1 | Set F2 | |
Mammography system | Hologic (DD) | GE Medical Systems (DD) | Fuji (CR) | Fuji (SFM and CR) | |||
Mammography machine | Lorad Selenia | Senographe 2000D | Senographe Essential (152 pairs), Senographe DS (87 pairs) | Clearview CSm | – | ||
Views | L MLO | L MLO | L CC or R CC | L CC or R CC | L MLO | L CC and R CC | R CC |
Pixel size (μm) | 70 | 70 | NK | NK | 94 (91%), 100 (9%) | 50 | SFM: 50 (33%), 200 (67%); CR 50 (50%), 100 (50%) |
Processing software version | AWS 3_3_1 | AWS 3_4_1 | NK | NK | ADS_43.10.1 (34.2%), ADS_54.10 (56.9%), ADS_54.11 (8.9%) | ||
Number of image pairs | 186 | 73 | 417 | 180 | 238 | 200 | 139 |
Number of women | 186 | 73 | 417 | 180 | 238 | 100 | 139 |
Source of films | Chilean Cohort Study of Breast Cancer Risk (in ICMD) | Bahcesehir screening programme, Turkey | H. Lee Moffitt Cancer Centre, USA | H. Lee Moffitt Cancer Centre, USA | East London Breast Screening Centre, UK (in ICMD) | NK | BreastScreen Victoria, Australia |
Yeara | 2011–2013 | 2010–2011 | 2008–2010 | 2007–2011 | 2010–2012 | 2008 | 2004–2009 |
Agea (years), mean (SD) | 41.0 (4.4) | 49.5 (7.5) | 63.5 (10.7) | 58.5 (10.4) | 58.0 (5.8) | 55.1 (12.8)b | 57.9 (5.1) first screen, 60.0 (5.1) second |
BMIc (kg/m2), median (IQR) | 27.6 (24.9–32.1) | NK | 27.6 (24.3–32.4) | 24.7 (22.3–27.0) | 24.6 (22.5–28.8) | NK | NK |