多层螺旋CT心血管参数评价急性肺栓塞严重性
【摘要】 目的 研究多层螺旋CT心血管参数评价急性肺栓塞（APE）严重性的价值。方法 APE患者分为严重APE组（28例）和非严重APE组（47例）2组。根据CT肺动脉内栓子阻塞部位和程度计算CT阻塞指数；测量右室短轴最大径、左室短轴最大径、右室与左室短轴最大径比、右室壁厚、主肺动脉直径及上腔静脉直径；观察室间隔是否左突。评价严重APE组和非严重APE组之间的CT心血管参数的差异是否有统计学意义。结果 严重APE组与非严重组的CT心血管参数有统计学差异（P<0.05）的指标包括：阻塞指数、右室短轴最大径、左室短轴最大径、右室与左室短轴最大径比、右室壁厚、主肺动脉直径及室间隔位置。结论 综合分析APE患者的CT心血管参数变化，有助于判断APE患者的严重性。
【关键词】肺栓塞;严重性;体层摄影术，X线计算机;心血管参数
The severity of acute pulmonary embolism evaluated by multi detector row CT cardiovascular parameters
ZHANG Ke wen,XIANG Xu,ZHOU Xiao feng,et al.
Department of Image,The First People’s Hospital of Changde City,Changde 415000,China
【Abstract】 Objective To study the value of CT cardiovascular parameters on evaluating the severity of the patients with acute pulmonary embolism(APE). Methods The patients with APE were divided into two groups:severe APE(n=28)and non severe APE(n=47). CT obstruction index was calculated according to the location and degree of clots in the pulmonary arteries. Cardiovascular parameters were measured including right ventricular(RV)and left ventricular(LV)maximal short axis, RV maximal short axis to LV maximal short axis(RV/LV)ratio, RV wall thickness, main pulmonary artery and superior vena cava diameter. The position of the interventricular septum was observed. The results were analyzed. Results Comparision of CT cardiovascular parameters between patients with severe and non severe pulmonary embolism showed significant differences(P<0.05)in RV maximal short axis, LV maximal short axis, RV/LV ratio,...
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