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本文通过120例心肌梗塞病人心电图 ptfv_1和 X 线胸片心/胸值与临床心功能及超声心动图(UCG)的对照分析显示:①UCG 心功能参数 EF 与 ptfv_1和心/胸值均呈明显负相关,相关系数分别为-0.72与-0.80(P 均<0.0005);②用 ptfv_1或心/胸值单项指标判断Ⅰ、Ⅱ和>Ⅲ置级心功能时,ptfv_1值分别为<0.02、0.02~0.04及≥0.05mm·s(绝对值);心/胸值分别为<0.5、0.5~0.59及≥0.6。若联合应用 ptfv_1和心/胸值判断各级心功能时,在不同程度上敏感性降低,特异性与预测指数皆增高,尤以判断≥Ⅲ级心功能为明显,其敏感性降低至17%,但特异性与预测指数升至100%。这表明按 ptfv_1≥0.05mm.s(绝对值)和心/胸值≥0.6判断≥Ⅲ级心功能的可靠性大。
In this paper, 120 patients with myocardial infarction electrocardiogram ptfv_1 and chest X-ray chest X-ray and clinical cardiac function and echocardiography (UCG) control analysis showed: ① UGG cardiac function parameters EF and ptfv_1 and heart / chest were significantly negative (P <0.0005), respectively; ② The ptfv_1 values of patients with Ⅰ, Ⅱ and Ⅲ heart function were respectively <0.02,0.02 ~ 0.04 and ≥0.05 mm · s (absolute value); heart / chest values were <0.5, 0.5 to 0.59 and ≥0.6, respectively. If combined use of ptfv_1 and heart / chest to determine the various levels of cardiac function, in varying degrees, reduced sensitivity, specificity and predictive index were increased, especially in judging ≥ Ⅲ grade cardiac function was obvious, the sensitivity decreased to 17% , But the specificity and forecast index rose to 100%. This shows that ptfv_1 ≥ 0.05mm.s (absolute value) and the heart / chest value ≥ 0.6 to determine ≥ Ⅲ grade heart function reliability.