定量T_2-mapping用于心脏成像的研究进展  

Progress of quantification T_2-mapping in cardiac imaging

作　　者：王兴兰[1] 张翱[1] 

机构地区：[1]重庆医科大学附属永川医院放射科,402160

出　　处：《国际医学放射学杂志》2014年第2期119-122,共4页International Journal of Medical Radiology

摘　　要：随着影像技术的发展,心脏成像的检查方法也走向多元化,定量T2-mapping以其快速、高效、准确的成像特点逐渐走入人们的视野。目前无创心脏成像的检查方法主要包括多巴酚丁胺应力超声心动图、对比剂负荷超声、正电子发射体层成像(PET)、单光子发射体层成像、心脏MR成像,且PET是目前公认的评价心肌活性的金标准。但心脏MR成像以其无创、无辐射、多功能、多方位成像的特点越来越受到研究者的关注,其中主要用于评价软骨完整性和肿瘤特性、前列腺成像、脑灌注动态对比研究、铁负荷测量的T2-mapping近年来也逐渐被用于心脏成像,尤其是对急性心肌梗死的检测。就T2-mapping对心脏成像的研究进展予以综述。With the development of imaging techniques,the methods in cardiac imaging have been diversified.Due to its fast,efficiency and accuracy,quantitative T2-mapping has been gradually used in clinical practice.Various non-invasive cardiac imaging modalities can be used to evaluate myocardial viability,such as dobutamine echocardiography （ECHO）,stress ECHO with contrast,positron emission tomography （PET）,single photon emission computed tomography,and cardiac magnetic resonance imaging.PET is the gold standard for the assessment of myocardial viability.However,cardiac magnetic resonance imaging has noninvasive,no radiation,multifunctional and multi-dimensional imaging characteristics who is becoming amore attractive tool.T2-mapping has been applied in the evaluation of cartilage integrity,tumor characterization,prostate imaging,dynamic contrast studies of cerebral perfusion,measurement of iron burden,and cardiac imaging.In recent years,it has been gradually used in evaluating acute myocardial infarction.The progress of quantification T2-mapping in cardiac imaging was reviewed.

关 键 词：定量T2-mapping 心脏磁共振成像 心肌水肿 再灌注出血 急性心肌梗死 

分 类 号：R445.2[医药卫生—影像医学与核医学]