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目的:对比分析肺癌患者和肺部非癌性病变肺动脉和主支气管动脉CTA特点。方法:回顾性统计分析82例行高度怀疑肺癌患者的肺部CTA,经病理证实肺癌54例,肺结核球28例,同时选择对照组22例。对比分析肺动脉(Pulmonary artery,PA)内径、主支气管动脉(Bronchial artery,BA)显影率和及其各级分支显影率。结果:肺癌组、肺结核球组和对照组左主支气管动脉显影率分别为83.3%、77.7%和72.7%。右主支气管动脉显影率87.0%、83.3%和68.1%。肺癌组左右主支气管动脉清晰显影率高于肺结核球组和对照组,差异有统计学意义(P<0.05)。左右两侧肺癌组PA内径明显大于结核球和对照组,差异有统计学意义(P<0.05)。左右侧肺癌组PA显影分级明显高于结核球和对照组,差异有统计学意义(P<0.05)。左右双侧PA主干内径差异无统计学意义(P<0.05)。结论:肺部癌性病灶动脉供血增加,肺动脉和支气管动脉CTA能够显示肺癌病灶供血情况,可用于临床辅助鉴别诊断影像学不能确诊的肺部病变。
OBJECTIVE: To comparatively analyze the features of CTA in pulmonary arteries and main bronchial arteries in patients with lung cancer and lung non-cancerous lesions. Methods: A retrospective analysis of 82 patients with highly suspected lung cancer patients with lung CTA, pathologically confirmed 54 cases of lung cancer, tuberculous ball 28 cases, while the control group of 22 patients. The diameter of pulmonary artery (PA), the developing rate of bronchial artery (BA) and the developing rate of its branches were comparatively analyzed. Results: The development rates of left main bronchial artery in lung cancer group, pulmonary tuberculosis group and control group were 83.3%, 77.7% and 72.7% respectively. Right main bronchial artery imaging rates were 87.0%, 83.3% and 68.1%. The clear development rate of the main bronchial arteries around the lung cancer group was higher than that of the tuberculosis group and the control group, with significant difference (P <0.05). PA diameter of lung cancer group on the left and right was significantly larger than that of tuberculoma and control group, the difference was statistically significant (P <0.05). The PA grade in left and right lung cancer group was significantly higher than that in tuberculoma group and control group, with statistical significance (P <0.05). There was no significant difference in the diameter of the main trunk between the left and right sides (P <0.05). Conclusion: Arterial blood supply of lung cancer lesions increased, pulmonary artery and bronchial artery CTA can show the supply of lung cancer lesions, can be used for clinical auxiliary differential diagnosis of lung imaging can not be diagnosed.