肺动脉CT成像在左心收缩功能保留和心力衰竭患者中的应用研究

The Diagnostic Value of Pulmonary Artery CT Imaging for HFpEF

中文关键词: 左心收缩功能保留的心力衰竭  心脏超声  肺动脉CT成像  B型氨基端尿钠肽原

英文关键词: heart failure with preserved ejection fraction (HFpEF)  echocardiography  pulmonary artery CT imaging (CTPA)  NT-proBNP

中文摘要:

      目的 探讨肺动脉CT成像在左心收缩功能保留的心力衰竭患者(HFpEF)中的诊断价值.方法 利用心脏超声及肺动脉CT成像(CTPA)测定120例HFpEF患者,分为3组:心功能分级Ⅱ级、Ⅲ级、Ⅳ级,对其结果进行分析比较.结果 3组结果显示应用心脏超声测定心功能Ⅳ级组E/A与心衰患者分级成正相关性(r=0.92,P＜0.05),而EDT、IVRT与心衰患者分级成负相关性(r=-0.81,P＜0.05),(r=-0.76,P＜0.05).CTPA结果提示MPAD、rPA、rPD等指标的差异有统计学意义(P＜0.05).而相关性分析提示MPAD、rPA、rPD与心功能Ⅲ和Ⅳ级具有正相关性(P＜0.05).结论 肺动脉CT成像技术对左心收缩功能保留的心力衰竭患者诊断具有一定意义,结合心脏超声结果可以提高患者的诊断,为尽早进行干预治疗提供依据.

英文摘要:

      Objective To explore the diagnostic value of pulmonary artery CT imaging for heart failure with preserved ejection fraction (HFpEF).Methods 120 patients with HFpEF were divided into 3 groups by echocardiography and pulmonary artery CT imaging (CTPA) based on cardiac function classification:group Ⅱ,group Ⅲ and group Ⅳ and the results among the groups were analyzed and compared.Results The results of echocardiography showed that E/A was positively correlated with the grading of heart failure in group Ⅳ (r=0.92,P＜0.05) while EDT and IVRT were negatively correlated with the grading of heart failure (r=-0.81,P＜0.05),(r=0.76,P＜0.05);the results of CTPA revealed a statistical difference in MPAD,rPA and rPD among the 3 groups (P＜0.05);the correlation analysis suggested that MPAD,rPA and rPD had a positive correlation with cardiac function Ⅲ and Ⅳ (P＜ 0.05).Conclusions CTPA is of certain diagnostic value for HFpEF,combined with echocardiography,it can promote the correctness of diagnosis and provide basis for early intervention.