多层螺旋CT右心功能参数评价急性肺栓塞严重程度的价值  

Value of right heart function parameters of multi-slice spiral CT on evaluating severity of acute pulmonary embolism

作　　者：张祥林[1] 刘宁[1] 

机构地区：[1]辽宁医学院附属第一医院放射线科,辽宁锦州121001

出　　处：《重庆医学》2012年第27期2819-2821,共3页Chongqing medicine

摘　　要：目的应用多层螺旋CT肺动脉造影(CTPA)技术,评价急性肺栓塞(APE)患者右心功能变化,探讨CTPA评价APE严重程度的临床价值。方法根据APE患者的死亡风险评估,把67例患者分为2组:高危组(n=31)和非高危组(n=36)。在CTPA图像上,分析两组患者右心功能参数及CT阻塞指数的差异,并分析二者间的关系。结果高危组患者CT阻塞指数(中位数22.58%)高于非高危组CT阻塞指数(中位数7.74%)(P=0.001)。除上腔静脉直径外,其余两组右心功能参数比较,差异均有统计学意义(P<0.05)。CT阻塞指数与右心功能计量指标之间存在相关性。结论多层螺旋CT右心功能参数可以评价APE严重程度,CTPA是评价APE严重程度的一种实用而准确的方法,具有重要的临床应用价值。Objective To use the multi-slice spiral CT pulmonary angiography（CTPA） technique to evaluate the change of right heart function in the patients with acute pulmonary embolism（APE） and to study the clinical value of CTPA on evaluating the severity of APE. Methods According to the risk evaluation of death,67 patients with APE were divided into two groups,the highrisk group（31 cases） and the non-high-risk group（36 cases）. In the CTPA images, the differences of the right heart function parameters and CT obstruction index were analyzed between 2 groups,and the correlation between CT obstruction index and right heart function parameters were also analyzed. Results The CT obstruction index of the high-risk group（median 22.58%） was higher than that of the non-high-rise group（median 7.74% ,P=0. 001）. Among the right heart function parameters,majority had statistical difference between the high-risk group and the non- high-risk group. The correlation between CT obstruction indexes and the right heart functions measurement data had statistical significance. Conclusion The right heart parameters of multi-slice spiral CT can be used to evaluate the severity of acute pulmonary embolism. CTPA is a practical and accurate examination method to evaluate the severity degree of APE and has important clinical value.

关 键 词：体层摄影术 X线 血管造影术 心脏功能 肺栓塞 

分 类 号：R563.5[医药卫生—呼吸系统]