摘要
随着骨科手术中金属植入物使用的增多，术后伴有金属植入物的CT检查也逐渐增多，而CT扫描会产生严重的伪影，干扰临床诊疗。为了解决这一问题，近年来大量研究分别从工程学和医学角度提出不同的方法和理论来减少金属伪影。工程学方面主要包括改变CT机的型号与性能，如应用双能CT （DECT）、锥状束CT（CBCT）等代替传统的螺旋CT。医学方面主要有改变CT电子管电压、扫描范围（FOV）、扫描层厚等参数，应用CT后处理软件与算法（如O-MAR技术）等。本综述将从以上两个大的角度，详细阐述近年来国内外在CT金属去伪影方面相关研究的进展，并据此为骨科金属植入物CT去伪影扫描方法提供参考。
With the rapid increase of orthopedic metal implants, more and more computed tomography （CT） scans of such patients with metal implantation were conducted. However, CT metal artifact caused by these implants would interfer clinical diagnosis and treatment. In order to solve this problem, large amount of researches had been carried out to reduce the metal artifact in the aspect of engineers and doctors in recent years. In the view of engineers, methods mainly include： transformation of the type and the property of CT machine such as dual-energy CT （DECT） or cone beam CT （CBCT）, instead of spiral CT. The methods of doctors mainly include： the transformation of CT scanning parameters, such as tube voltage, field of view （FOV）, layer thickness; the CT post-processing software such as Orthopedics Metal Artifact Reduction （O-MAR） which was applied comprehensively in orthopedics in recent years. Domestic and international progress of relevant studies on metal artifact reduction technology will be demonstrated in both aspects of engineers and doctors. Final reference for reduction of metal artifact in orthopedic application will be provided based on the above methods.
作者
张客松
韩青
单悦展
邹运
陈炳鹏
王金成
Zhang Kesong;Han Qing;Shan Yuezhan;Zou Yun;Chen Bingpeng;Wang Jincheng(Department of Orthopedics, the Second Hospital of Jilin University, Changchun 130041, China;Norman Bethune Health Science Center of Jilin University, Changchun 130033, Chin)
出处
《中华实验外科杂志》
CAS
CSCD
北大核心
2018年第4期791-792,共2页
Chinese Journal of Experimental Surgery
