衰减校正技术在SPECT心肌灌注显像中的应用分析  

Application analysis of attenuation correction technique in SPECT myocardial perfusion imaging

作　　者：薛及弟 张磊[1] 卫华[1] Xue Jidi;Zhang Lei;Wei Hua(Department of Nuclear Medicine,First Hospital of Shanxi Medical University,Taiyuan 030001,China)

机构地区：[1]山西医科大学第一医院核医学科,太原030001

出　　处：《国际放射医学核医学杂志》2020年第4期262-266,共5页International Journal of Radiation Medicine and Nuclear Medicine

摘　　要：心肌灌注显像(MPI)的伪影对其图像质量以及图像的判别产生较大影响,造成假阳性率较高。目前针对软组织衰减所造成的伪影主要有以下2类校正技术,非X射线校正法(如变换体位采集、门控采集和固体^153Gd线源穿透式采集)和CT衰减校正法。明确2种方法的应用范围及其优缺点,使临床医师在阅片中对伪影有正确的分析判断,从而提高诊断的准确率。Artifacts of myocardial perfusion imaging,greatly influence on the image quality and image discrimination,resulting in a high false-positive rate.Many techniques have been developed for correcting various artifacts,including non-X-ray attenuation correction method(such as change-position acquisition,gated acquisition and solid ^153Gd line-source penetration acquisition)and CT attenuation correction method.Clarify the application scope and advantages and disadvantages of the two methods,so that the clinician can correctly analyze and judge the artifacts in the reading,thereby improving the accuracy of diagnosis.

关 键 词：心肌灌注显像 体层摄影术 发射型计算机 单光子 衰减校正 伪影 

分 类 号：R541[医药卫生—心血管疾病] R817.4[医药卫生—内科学]