Texture feature | P |

Angular second moment | 0.100 |

Contrast | 0.043 |

Correlation | 0.992 |

Sum of squares: variance | 0.035 |

Inverse difference moment | 0.168 |

Sum average | 0.963 |

Sum variance | 0.042 |

Sum entropy | 0.396 |

Entropy | 0.229 |

Difference variance | 0.233 |

Difference entropy | 0.039 |

Information on measurement of correlation 1 | 0.239 |

Information on measurement of correlation 2 | 0.247 |

*P*values refer to probability of statistically significant difference in each texture feature, when comparing pre- and post-PCI image sets.