4DCT成像与重建方法综述  

A Review of 4DCT Imaging and Reconstruction Methods

作　　者：严振峣 高河伟[1] 张丽[1] YAN Zhenyao;GAO Hewei;ZHANG Li(Department of Engineering Physics,Tsinghua University,Beijing 100084)

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《CT理论与应用研究（中英文）》2024年第2期243-262,共20页Computerized Tomography Theory and Applications

基　　金：国家自然科学基金(融合动态能谱与个性化建模的冠状动脉容积成像方法与关键技术(62031020))。

摘　　要：本文概述过去20多年四维CT(4DCT)相关成像技术的发展,对4DCT的概念、扫描模式以及重建算法做了比较详细的介绍。文章归纳总结4DCT的5大类重建算法,评估各类算法的优势、劣势和关键技术问题,并对主要文献中的重建方法进行统计分析,拟展示目前4DCT重建算法的研究方向和未来的发展趋势。In this paper,the main literature related to 4DCT imaging and reconstruction techniques over the past 20 years is reviewed,and the contents are summarized.This paper provides a systematic and comprehensive introduction to 4DCT research from five perspectives:the concept of 4DCT,scanning mode and imaging method,reconstruction algorithm,application,research status,and future development expectations.In this study,five types of reconstruction algorithms are summarized,and the advantages,disadvantages,and research difficulties of each algorithm are briefly evaluated.Finally,we conduct a brief statistical analysis on the cited works from the perspective of reconstruction methods,revealing the research progress and future research trends of 4DCT reconstruction algorithms.

关 键 词：4DCT 重建算法 发展趋势 

分 类 号：O242[理学—计算数学] TP391.41[理学—数学]