核素心肌灌注显像对稳定型心绞痛的定位及诊断分析

发布时间：2018-02-10 11:27

本文关键词： 核素心肌灌注显像稳定型心绞痛冠状动脉造影 Tcm-甲氧基异丁基异腈诊断 SPECT　出处：《中国医学装备》2017年04期 　论文类型：期刊论文

【摘要】：目的:分析SPECT核素心肌灌注显像对稳定型心绞痛的定位及诊断在临床中的应用价值。方法:选择70例拟诊为稳定型心绞痛(SAP)的患者,对所有患者均行三磷酸腺苷(ATP)负荷-静息99Tcm-甲氧基异丁基异腈(~(99)Tc~m-MIBI)心肌灌注显像(MPI)和冠状动脉造影术(CAG),比较MPI显像对SAP定位及诊断的准确率。结果:在70例患者的两种方法检查中:1MPI检查阳性者共50例;2CAG诊断为SAP者51例;MPI诊断SAP的阳性预测值为92.0%,灵敏度为90.2%,阴性预测值为75.0%,特异度为78.9%;MPI与CAG结论一致的患者共45例,总符合率为90.0%;3CAG检查阳性者共51例,阳性率为72.9%;450例MPI阳性患者中经CAG诊断为SAP共46例,阳性率为92.0%,两种方法检查差异具有统计学意义(x~2=5.72,P0.05)。结论:~(99)Tc~m-MIBI心肌灌注显像检查在稳定型心绞痛的定位及诊断中具有较高应用价值,能够为临床治疗提供可靠依据。
[Abstract]:Objective: to analyze the value of SPECT radionuclide myocardial perfusion imaging in the localization and diagnosis of stable angina pectoris. Methods: 70 patients with stable angina pectoris were selected. All patients were treated with adenosine triphosphate (ATP) load-rest 99Tcm-methoxyisobutyl isonitrile (MPI) myocardial perfusion imaging (MPI) and coronary angiography (CAGI). The accuracy of MPI imaging in the localization and diagnosis of SAP was compared. The positive predictive value, sensitivity, negative predictive value and specificity of SAP were 92.0, 90.2, 75.0, 78.9% and 78.9%, respectively. The positive predictive value and specificity of the two methods were 92.0, 90.2, 75.0 and 78.9% respectively. The total coincidence rate was 90.03 CAG positive in 51 cases, and the positive rate was 72.9% in 450patients with MPI positive. 46 cases were diagnosed as SAP by CAG. The positive rate was 92.0. The difference between the two methods was statistically significant (P 0.05). Conclusion Myocardial perfusion imaging of TcmMIBI is valuable in the localization and diagnosis of stable angina pectoris, and can provide reliable basis for clinical treatment.
【作者单位】：中国中医科学院广安门医院核医学科;
【分类号】：R541.4;R817.4

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