Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 2 p values for the association between each feature and IC versus SC, from logistic regression modelling, adjusted for mammographic percent destiny

From: Novel mammographic image features differentiate between interval and screen-detected breast cancer: a case-case study

  p value, n = 1401 (1C: 393, SC: 1008)  
  Dense area selection method
Image feature (1) Percentile (2) Entropy (3) Otsu's method Technical feature description - all listed features are based on the identified dense area
F1 0.058 0.069 0.575 DC coefficient of two-dimensional discrete cosine transform
F2 0.636 0.006 0.233 The approximation coefficient of the multilevel discrete two-dimensional wavelet transform
F3 0.002 0.660 0.006 The max coefficient of the two-dimensional discrete Fourier transform of the local range filter
F4 0.193 0.697 0.037 Kurtosis of the intensity histogram
F5 0.388 0.334 0.053 Skewness of the intensity histogram
F6 0.074 0.026 0.015 Entropy of the intensity histogram
F7 0.282 0.031 0.969 The mean of entropy-filtered selected area
F8 0.467 0.036 0.793 Entropy of the complex imaginary part of the convolved selected area with log-Gabor filters
F9 0.624 0.045 0.969 Entropy of the complex real part of the convolved selected area with log-Gabor filters
F10 0.582 0.025 0.676 Entropy of the magnitude part of the convolved selected area with log-Gabor filters
F11 0.020 0.148 0.235 The max coefficient of the two-dimensional discrete Fourier transform
F12 0.995 0.026 0.234 Entropy of the normalized co-occurrence matrix
F14 0.600 0.751 0.326 The max coefficient of the two-dimensional discrete Fourier transform of the Hessian filter
F16 0.058 0.088 0.582 The max coefficient of the log of the magnitude part of the discrete cosine transform
F17 0.020 0.146 0.235 The max coefficient of the log of the magnitude part of the discrete Fourier transform
F18 0.111 0.078 0.443 The fourth central moment
F19 0.012 0.726 0.019 Number of separate blobs
F20 0.312 0.015 0.129 Solidity
F21 0.001 0.970 0.007 Eccentricity
F22 0.966 0.240 0.365 Euler number
F24 <0.001 0.931 0.006 Skewness of the normalized singular value decomposition/its standard deviation
F25 0.040 0.164 0.291 Singular value decomposition
F26 0.062 0.269 0.795 Number of holes within the selected area (low intensity surrounded by high intensity)
F27 0.063 0.026 0.009 Interquartile range of the intensity histogram
F33 0.225 0.317 0.322 Kurtosis of the projection along the Y axis
F34 0.065 0.136 0.201 Kurtosis of the projection along the X axis
F35 0.002 0.211 0.582 Perimeter of the selected area
F37 0.317 0.040 0.415 Mean intensity
F39 0.358 0.168 0.283 Median intensity
F40 0.145 0.012 0.001 Skewness of the intensity gradient
F41 0.172 0.032 0.946 Energy property of the co-occurrence matrix of the selected area - horizontal shift two pixels
F42 0.261 0.031 0.984 Energy property of the co-occurrence matrix of the selected area - diagonal shift eight pixels
  1. p values in bold font signifies that they are below 0.05. Only features based on the dense area of the mammogram were included
  2. 1C interval breast cancer, SC screen-detected breast cancer