本文選題：氣胸　切入點：肺壓縮比　出處：《臨床放射學雜志》2017年01期 　論文類型：期刊論文

【摘要】：目的探討氣胸患者CT橫斷面上氣胸最大寬度(A值)和經(jīng)膈頂胸廓最大前后徑(B值)的比值與肺壓縮比的相關(guān)性。方法搜集本院2015年至2016年內(nèi)42例氣胸患者資料,在CT后處理軟件上(ADW 4.5)通過最小密度投影(Min P)分別重組并測出患側(cè)原肺容積V_1和壓縮后的肺組織容積V_2,算出氣胸空氣容積(V_1-V_2),得出肺壓縮比[((V_1-V_2)/V_1]%,再測量A值及B值,求出A/B值。通過SPSS 19.0統(tǒng)計學軟件先繪制出散點圖,求出變量A/B與肺壓縮比的相關(guān)系數(shù)r值,再進一步通過線性回歸方程y=a+bx得出常數(shù)項a和回歸系數(shù)b值。結(jié)果通過SPSS 19.0統(tǒng)計學軟件繪制出的散點圖呈線性相關(guān),相關(guān)系數(shù)r=0.90,模型P0.005,有統(tǒng)計學意義,說明CT橫斷面上氣胸最大寬度和胸廓最大前后徑的比值與肺壓縮比存在正相關(guān)關(guān)系。通過線性回歸方程y=a+bx得出常數(shù)項a=0.024,回歸系數(shù)b=1.096,進而得出氣胸肺壓縮比=0.024+1.096×A/B。結(jié)論在臨床工作中只要測出CT橫斷面氣胸最大寬度及經(jīng)膈頂?shù)男乩畲笄昂髲?便可以測算出肺壓縮比。使得氣胸的肺壓縮比計算快捷方便準確。
[Abstract]:Objective to investigate the correlation between the ratio of the maximum width of pneumothorax on CT cross section (A value) and the maximum anterior and posterior diameter of transphrenic top chest (B value) and the lung compression ratio. Methods the data of 42 patients with pneumothorax from 2015 to 2016 in our hospital were collected. ADW 4.5on CT post-processing software, respectively, the original lung volume V _ (1) and compressed lung tissue volume V _ (2) of the affected side were reorganized and measured by minimum density projection (Min P), and the pneumothorax air volume (V _ 1-V _ (2)) was calculated, and the lung compression ratio [V1-V _ (2) / V _ 2 / V _ 1] was obtained, then the A value and B value were measured. Using the SPSS 19.0 statistical software to draw the scatter plot, the correlation coefficient r value between the variable A / B and the lung compression ratio was obtained, and the correlation coefficient r between the variable A / B and the lung compression ratio was obtained. Furthermore, the constant term a and the regression coefficient b were obtained through the linear regression equation yttria BX. Results the scattered plot drawn by SPSS 19.0 statistical software showed linear correlation, the correlation coefficient was 0.90, and the model was P0.005, which had statistical significance. The ratio of maximal width of pneumothorax and the ratio of maximal anterior and posterior diameter of chest on CT cross-section is positively correlated with the ratio of lung compression. By using the linear regression equation yaabx, the constant term a0. 024, the regression coefficient b1. 096, and the pneumothorax lung compression ratio of 0. 024 脳 A / A / B are obtained. Conclusion in clinical work, we only need to measure the maximum width of CT cross section pneumothorax and the maximum anteroposterior diameter of chest through diaphragm roof. The lung compression ratio of pneumothorax can be calculated quickly, conveniently and accurately.
【作者單位】： 廣東省英德市人民醫(yī)院影像中心;
【分類號】：R816.4;R561.4

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1 梁樹生;周國永;鄭華英;丘文科;李偉欽;;氣胸肺壓縮比的CT測量研究[J];臨床放射學雜志;2017年01期

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本文編號：1624755