Texture feature | R frontal | R parietal | R temporal | L frontal | L parietal | L temporal |

Angular second moment | 0.292 | 0.212 | 0.173 | 0.449 | 0.176 | 0.335 |

Contrast | 0.720 | 0.757 | 0.472 | 0.833 | 0.637 | 0.763 |

Correlation | 0.821 | 0.232 | 0.557 | 0.984 | 0.609 | 0.989 |

Sum of squares: variance | 0.651 | 0.630 | 0.483 | 0.850 | 0.384 | 0.740 |

Inverse difference moment | 0.214 | 0.400 | 0.430 | 0.922 | 0.332 | 0.328 |

Sum average | 0.133 | 0.010 | 0.892 | 0.221 | 0.047 | 0.501 |

Sum variance | 0.618 | 0.416 | 0.557 | 0.884 | 0.351 | 0.760 |

Sum entropy | 0.478 | 0.205 | 0.576 | 0.846 | 0.744 | 0.296 |

Entropy | 0.322 | 0.272 | 0.197 | 0.451 | 0.145 | 0.254 |

Difference variance | 0.286 | 0.238 | 0.842 | 0.852 | 0.550 | 0.351 |

Difference entropy | 0.452 | 0.437 | 0.790 | 0.953 | 0.785 | 0.574 |

Information on measurement of correlation 1 | 0.465 | 0.448 | 0.790 | 0.478 | 0.138 | 0.409 |

Information on measurement of correlation 2 | 0.921 | 0.980 | 0.061 | 0.497 | 0.034 | 0.109 |

Values refer to probability of statistically significant difference in each texture feature (

*P*value), when comparing pre- and post-PCI image sets.