CTA在冠状动脉钙化斑块管腔狭窄诊断中的研究进展(1)
摘要：随着我国人口老龄化趋势不断上升，冠心病患病率随之提升，好发于60周岁以上老年患者。冠心病又称为冠状动脉粥样硬化性心脏病，具有较高的致残率、致死率。随着医学影像技术不断成熟，CT因无创、扫描快的优势已经在临床中得到广泛推广应用，成为了诊断疾病的主要方法之一。CT可分为64排螺旋CT、DSCT、320DVCT，使得正确诊断冠状动脉疾病率得到很大的提升，为无创性检查和评估冠心病提供有效的依据。据有关研究报道，冠状动脉血管成像(CTA)假阳性、假阴性提升的主要原因为患者心率不齐、心率过速造成为心脏运动轨迹伪影;冠状动脉壁管存在钙化伪影均是其主要原因。因此临床常重点关注钙化伪影、心脏运动轨迹伪影对诊断准确性的影响。本文主要就CTA在冠状动脉钙化斑块管腔狭窄诊断中的价值进行综述。
关键词：CTA;冠状动脉钙化斑块管腔狭窄;CT;诊断价值
中图分类号：R541.4;R816.2 文献标识码：A DOI：10.3969/j.issn.1006-1959.2019.04.018
, 百拇医药
文章编号：1006-1959(2019)04-0050-04
Abstract：As the trend of population aging in China continues to rise， the prevalence of coronary heart disease increases， and it occurs in elderly patients over 60 years of age. Coronary heart disease， also known as coronary atherosclerotic heart disease， has a high rate of disability and mortality. With the continuous maturity of medical imaging technology， CT has been widely used in clinical practice because of its advantages of non-invasive and rapid scanning， and has become one of the main methods for diagnosing diseases. CT can be divided into 64-row spiral CT， DSCT， 320DVCT， which makes the diagnosis of coronary artery disease rate greatly improved， and provides an effective basis for non-invasive examination and evaluation of coronary heart disease. According to relevant research reports， the main reason for the increase of false positive and false negative in coronary angiography (CTA) is the heart motion trajectory caused by abnormal heart rate and heart rate tachycardia; calcification artifacts in coronary artery wall are the main reasons. Therefore， the clinical focus is often on the impact of calcification artifacts and cardiac motion trajectory artifacts on diagnostic accuracy. This article reviews the value of CTA in the diagnosis of coronary calcification plaque stenosis.
, http://www.100md.com
Key words：CTA;Coronary calcified plaque stenosis;CT;Diagnostic value
冠狀动脉CT积分扫描方法仍旧是当前量化冠状动脉钙化的标准方法，此外质量积分与体积积分也常被临床运用。冠状动脉血管成像(CTA)具有无创、检查快的优势，在评估冠状动脉粥样硬化中具有较高的敏感性。有关研究报道，CTA阳性预测值可高达98%左右，但特异性较低，主要原因为患者冠状动脉钙化程度较高[1]。本文目的在于探究CTA在冠状动脉钙化斑块管腔狭窄诊断中的价值，旨在为临床医学影像技术人员提供参考依据。
1冠状动脉钙化检查方法与运用价值
随着我国人口呈现老龄化趋势，冠心病患病率越来越高，患者常常得不到及时治疗或延误治疗，导致死亡，故早期诊断与治疗极为重要，可提升患者生存周期。冠状动脉粥样硬化是冠心病常见的基础疾病之一，患者一旦出现冠状动脉存在钙化进展情况，则提示其存在冠状动脉粥样硬化情况，因此，检查冠状动脉是否存在钙化，对评估患者冠状动脉是否粥样化极为重要。, http://www.100md.com(朱晓珉)
关键词：CTA;冠状动脉钙化斑块管腔狭窄;CT;诊断价值
中图分类号：R541.4;R816.2 文献标识码：A DOI：10.3969/j.issn.1006-1959.2019.04.018
, 百拇医药
文章编号：1006-1959(2019)04-0050-04
Abstract：As the trend of population aging in China continues to rise， the prevalence of coronary heart disease increases， and it occurs in elderly patients over 60 years of age. Coronary heart disease， also known as coronary atherosclerotic heart disease， has a high rate of disability and mortality. With the continuous maturity of medical imaging technology， CT has been widely used in clinical practice because of its advantages of non-invasive and rapid scanning， and has become one of the main methods for diagnosing diseases. CT can be divided into 64-row spiral CT， DSCT， 320DVCT， which makes the diagnosis of coronary artery disease rate greatly improved， and provides an effective basis for non-invasive examination and evaluation of coronary heart disease. According to relevant research reports， the main reason for the increase of false positive and false negative in coronary angiography (CTA) is the heart motion trajectory caused by abnormal heart rate and heart rate tachycardia; calcification artifacts in coronary artery wall are the main reasons. Therefore， the clinical focus is often on the impact of calcification artifacts and cardiac motion trajectory artifacts on diagnostic accuracy. This article reviews the value of CTA in the diagnosis of coronary calcification plaque stenosis.
, http://www.100md.com
Key words：CTA;Coronary calcified plaque stenosis;CT;Diagnostic value
冠狀动脉CT积分扫描方法仍旧是当前量化冠状动脉钙化的标准方法，此外质量积分与体积积分也常被临床运用。冠状动脉血管成像(CTA)具有无创、检查快的优势，在评估冠状动脉粥样硬化中具有较高的敏感性。有关研究报道，CTA阳性预测值可高达98%左右，但特异性较低，主要原因为患者冠状动脉钙化程度较高[1]。本文目的在于探究CTA在冠状动脉钙化斑块管腔狭窄诊断中的价值，旨在为临床医学影像技术人员提供参考依据。
1冠状动脉钙化检查方法与运用价值
随着我国人口呈现老龄化趋势，冠心病患病率越来越高，患者常常得不到及时治疗或延误治疗，导致死亡，故早期诊断与治疗极为重要，可提升患者生存周期。冠状动脉粥样硬化是冠心病常见的基础疾病之一，患者一旦出现冠状动脉存在钙化进展情况，则提示其存在冠状动脉粥样硬化情况，因此，检查冠状动脉是否存在钙化，对评估患者冠状动脉是否粥样化极为重要。, http://www.100md.com(朱晓珉)