胸部CT主肺动脉比与血压的相关性及临床意义

发布时间：2018-08-12 12:40

【摘要】：目的探讨胸部CT主肺动脉比(RAP)与血压的相关性及临床意义。方法回顾性分析191例高血压患者(高血压组)及87名健康体检者(对照组)的胸部CT资料。高血压组根据血压升高情况分为T1组(1级高血压,63例)、T2组(2级高血压,60例)及T3组(3级高血压,68例),根据治疗情况分为A组(治疗组,94例)和B组(未治疗组,97例);结合血压和治疗情况,其中A1组31例、A2组30例、A3组33例,B1组32例、B2组30例、B3组35例。对照组根据年龄分为C1组(老年组,年龄≥60岁)40名及C2组(非老年组,年龄60岁)47名。通过平扫轴位图像测量升主动脉、肺动脉直径,计算RAP。连续7天记录清晨稳定血压并取平均值作为临床血压检测结果,包括收缩压(SBP)及舒张压(DBP)。结合年龄、血压等级及治疗情况分组分析血压与RAP的相关性,并评价RAP对1级高血压的诊断效能。结果 T1、T2、T3、C1及C2组间两两比较,SBP及RAP差异均有统计学意义(P均0.05),DBP差异均无统计学意义(P均0.05)。A1、A2、A3、B1、B2及B3组间两两比较,升主动脉、肺动脉直径及RAP差异均有统计学意义(P均0.05)。对照组、高血压组、A组、B组SBP均与RAP呈正相关(P均0.05)。对照组及高血压组DBP与RAP均无相关性(P均0.05)。以RAP=1.29为阈值,诊断1级高血压的敏感度为85.71%(54/63),特异度为89.66%(78/87),误诊率10.34%(9/87),漏诊率14.29%(9/63),Youden指数为0.75。结论胸部CT所测RAP可客观反映血压水平,RAP与SBP呈正相关。
[Abstract]:Objective to investigate the correlation and clinical significance between (RAP) and blood pressure in chest CT. Methods the chest CT findings of 191 patients with hypertension (hypertension group) and 87 healthy persons (control group) were analyzed retrospectively. Hypertension group was divided into T1 group (63 cases of grade 1 hypertension), T2 group (60 cases of grade 2 hypertension) and T3 group (68 cases of grade 3 hypertension) according to blood pressure elevation. According to the treatment condition, group A (94 cases of hypertension) and group B (97 cases of untreated group) were divided into two groups: group A (n = 94) and group B (n = 97). Combined with blood pressure and treatment, Among them, there were 31 cases in group A1, 30 cases in group A _ 2, 30 cases in group A _ 3, 33 cases in group B _ 1, 32 cases in group B _ 2, 30 cases in group B _ 2, 35 cases in group B _ 3. The control group was divided into C _ 1 group (aged 鈮，

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