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Table 2 Comparison of the imaging size and the histological tumour size

From: Measurement of tumour size with mammography, sonography and magnetic resonance imaging as compared to histological tumour size in primary breast cancer

Tumour group Difference between
Sonography and histology Mammography and histology MRI and histology
M (mm) LOA (mm) r M (mm) LOA (mm) r M (mm) LOA (mm) r
DCIS −15 −87 to 56 0,304 −1 −71 to 68 0,374 5 −46 to 56 0,744
IDC - DCIS −9* −47 to 30 0,570 −4 −43 to 35 0,502 2 −46 to 49 0,311
IDC −4* −20 to 13 0,853 3 −16 to 22 0,821 3 −19 to 26 0,732
ILC −10** −31 to 11 0,853 1 −20 to 13 0,821 2 −31 to 34 0,732
Other tumours −1 −9 to 6 0,907 3 −8 to 14 0,867 −2 −14 to 10 0,752
TOTAL −8** −43 to 28 0,525 −1 −36 to 34 0,550 2 −34 to 39 0,554
  1. Significant differences *p < 0,05 **p < 0,001.
  2. DCIS Ductal carcinoma in situ, IDC Invasive ductal carcinoma, ILC Invasive lobular carcinoma, M mean, LOA limits of agreement, r - correlation coefficient.