安子晨 肖喜刚 张金玲 吕亚会 李茂桐

    [摘要] 全模型迭代重建(IMR)技术作为一种新型的迭代重建算法，与传统滤波反投影法及混合迭代算法比较，在降低噪声、提高图像质量效果方面表现更为出色。IMR技术的使用可以在降低辐射剂量的同时，又能确保图像的质量并能够良好的完成诊断。本文就IMR技术在各部位CT血管成像中的临床应用进展进行综述，并对做出简单预估，为相关研究提供参考。

    [关键词] 全模型迭代重建;滤波反投影;体层摄影术，X线计算机;CT血管成像

    [中图分类号] R814.42? ? ? ? ? [文献标识码] A? ? ? ? ? [文章编号] 1673-7210(2019)07(a)-0058-04

    Research progress of iterative model reconstruction in CT angiography

    AN Zichen1? ?XIAO Xigang1? ?ZHANG Jinling1? ?LYU Yahui2? ?LI Maotong1

    1.Department of Radiology， the First Affiliated Hospital of Harbin Medical University， Heilongjiang Province， Harbin? ?150001， China; 2.Department of Radiology， Harbin Second People′s Hospital， Heilongjiang Province， Harbin? ?150056， China

    [Abstract] Iterative model reconstruction (IMR) technology is a new type of iterative reconstruction algorithm. Compared with the traditional filtered back projection and hybrid iterative algorithm， it performs better in reducing noise and improving image quality. Application of IMR reconstruction can reduce the radiation dose and ensure the image quality. In this paper ......