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摘要目的前瞻性评估接受胸部多层螺旋CT随访的肿瘤病人中隐匿性肺栓塞的患病率及特点,研究多层螺旋CT的扫描方案。方法共评估1 013例肿瘤病人。分别评估多层螺旋CT 5 mm和1.25 mm层厚重组下的影像。评估肺动脉成像程度,记录肺动脉栓塞存在与否、程度、部位,以及肺动脉栓塞病人的肿瘤类型和转移情况。结果排除1.4%(14/1 013)缺乏血管造影检查病人,共有999例病人[男572例,年龄26~93岁,平均(68±12)岁]纳入研究标准。肺栓塞患病率为5%。对于检测肺栓塞的敏感性,1.25 mm重组影像比5 mm影
Abstract Objective To prospectively evaluate the prevalence and characteristics of occult pulmonary embolism in patients undergoing multi-slice spiral CT with chest CT followed by multi-slice spiral CT scan. Methods A total of 1 013 tumor patients were evaluated. Images of 5 mm and 1.25 mm layer thicknesses under multi-slice spiral CT were evaluated separately. Evaluate the extent of pulmonary arterial imaging and record the presence, extent, location of pulmonary embolism, and the type and metastasis of the patient with pulmonary embolism. A total of 999 patients (572 male, aged 26-93 years, mean (68 ± 12) years) were included in the study criteria in 1.4% (14/1 013) of the patients who lacked angiographic examination. The prevalence of pulmonary embolism is 5%. For the detection of pulmonary embolism sensitivity, 1.25 mm recombinant images than 5 mm shadow