右主支气管与右上叶支气管交汇区的MSCT影像学研究
Imaging study of the intersection area of right principal bronchus and right upper lobe bronchus based on MSCT
目的 对正常成年人右主支气管与右上叶支气管交汇区的径线进行测量，分析右主支气管、右上叶支气管、中间支气管径线的相关性。 方法 分析300例正常成年男性与300例正常成年女性的胸部MSCT图像，利用多平面重建技术（Multiplanar reconstruction，MPR）测量右主支气管、右上叶支气管、中间支气管的内径、长度、横截面积和夹角，并进行相关性分析。 结果 男性和女性右主支气管长径（Z）与右上叶支气管长径（X）、中间支气管的长径（Y）相关性分别为Z=0.379X+0.955Y-0.691（r=0.763，P<0.05）和Z=0.386X+0.358Y+6.340（r=0.745，P<0.05）。 结论 正常成年人右主支气管内径、右上叶支气管内径、中间支气管内径存在较高的相关性，可以为右主支气管与右上叶支气管交汇区域内径的准确测量和估算提供参考。
Objective To explore and measure the dimensions of the intersection area of right principal bronchus and right upper lobe bronchus in normal adults and to analyze the correlation between the diameters of right principal bronchus, right upper lobe bronchus and intermediate bronchus. Methods The MSCT images of 300 healthy adult males and 300 healthy adult females were analyzed and measured, respectively. We used multiplanar reconstruction technique to measure the diameter, length, cross-sectional area and included angle of the right principal bronchus, right upper lobe bronchus and intermediate bronchus, and analyzed the correlation between them. Results The correlation between the long diameters of the right principal bronchus (Z), the right upper lobe bronchus (X), and the intermediate bronchus (Y) of male and female was Z=0.379X+0.955Y-0.691 (r=0.763, P<0.05) and Z=0.386X+0.358Y+6.340（r=0.745,P<0.05）, respectively. Conclusion The diameters of the right principal bronchus, the right upper lobe bronchus and intermediate bronchus have a high correlation. Correlation equation can provide a reference for accurate measurement and estimation the intersection area of the dismeter of the right principal bronchus and right upper lobe bronchus.
右主支气管 / 右上叶支气管 / 中间支气管 / MSCT / 测量
Right principal bronchus; / Right upper lobe bronchus; / Intermediate bronchus; / MSCT / Measurement
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