原发性自发性气胸多层螺旋CT扫描胸部影像特征分析

发布时间：2019-05-29 20:28

【摘要】：目的分析原发性自发性气胸(PSP)MSCT胸部影像特征,探讨其形成机制。方法搜集PSP 45例及性别、年龄匹配胸部无明确病变(对照组)和继发性自发性气胸(SSP)患者各45例。测量前两组第六肋骨(6~(th))倾斜度、气管分叉平面胸廓内径,观察肋骨内突(PRIL)、肺气肿样改变(BB)及气胸组胸膜孔情况。组间变量值和计量数差异分别采用t和χ~2检验。结果 PSP组与对照组6~(th)倾斜度分别为:(54.5±16.8)°、(65.6±17.5)°(t=6.79,P0.05);10~19岁、20~29岁和30~39岁气管分叉平面胸廓横径/前后径值分别为:2.65±1.24、2.58±1.02、2.61±1.12和2.04±0.74、2.08±0.87、2.05±0.78(t=4.28、4.05、4.39,P值均0.05);PRIL、BB检出例数分别为:25和10例(χ~2=8.16,P0.05);35和4例(χ~2=40.72,P0.01)。PSP和SSP胸膜孔检出率分别为26.67%和6.67%(χ~2=5.12,P0.01)。结论胸廓扁平、PRIL、BB及胸膜孔为PSP特征影像,胸廓扁平增加跨肺压利于BB形成,PRIL增加胸膜压迫磨损,易致BB破裂或胸膜薄弱漏气形成PSP及胸膜孔。
[Abstract]:Objective to analyze the chest imaging features of primary spontaneous pneumothorax (PSP) MSCT) and to explore its formation mechanism. Methods 45 cases of PSP, 45 cases of sex, 45 cases of age matched chest without definite lesions (control group) and 45 cases of secondary spontaneous pneumothorax (SSP) were collected. The inclination of the sixth ribs (6 ~ (th) and the inner diameter of the chest of the trachea bifurcation plane were measured in the first two groups. The changes of (BB) in the pulmonary emphysema of the internal process of the ribs and the pleural foramen in the pneumothorax group were observed. T and Chi ~ 2 tests were used to test the value of variables and the number of measures among groups, respectively. Results the inclination of 6 ~ (th) in PSP group and control group was (54.5 卤16.8) 掳, (65.6 卤17.5) 掳(t 鈮，

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