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目的通过心电门控CT肺动脉成像(CTPA)评价急性肺动脉栓塞(APE)患者的右心功能情况,探讨CTPA评价APE严重程度的临床应用价值。方法根据APE患者的死亡风险评估情况把78例患者分为高危组(n=37)和非高危组(n=41)两组,分析两组患者CTPA图像上CT阻塞指数及右心功能参数的差异及二者间的相关性。结果高危组患者CT阻塞指数(中位数24.13%)明显高于非高危组CT阻塞指数(中位数8.27%,<0.05)。两组患者间右心功能参数的比较,除上腔静脉直径外,差异均具有统计学意义(<0.05)。CT阻塞指数与右心功能参数之间存在相关性。结论心电门控CTPA成像可以评价APE患者的严重程度,具有重要的临床价值。
Objective To evaluate the right ventricular function in patients with acute pulmonary embolism (APE) by cardiac gated CT pulmonary angiography (CTPA) and to explore the clinical value of CTPA in assessing the severity of APE. Methods 78 patients were divided into two groups: high-risk group (n = 37) and non-high-risk group (n = 41) according to the risk assessment of death in APE patients. CT occlusion index and right heart function parameters Differences and the correlation between the two. Results The CT obstruction index (median 24.13%) in high risk group was significantly higher than that in non - high risk group (median 8.27%, <0.05). The comparison of right heart function parameters between the two groups, except the diameter of the superior vena cava, the differences were statistically significant (<0.05). There is a correlation between CT block index and right heart function parameters. Conclusion ECG-gated CTPA imaging can evaluate the severity of APE patients and has important clinical value.