百草枯中毒的肺部CT表现及预后

Lung CT manifestation and prognosis of parquet intoxication

目的:分析和总结百草枯中毒肺损害的CT表现特点,提高对百草枯中毒肺损害的认识,从而为临床治疗提供有用的价值。方法:回顾性分析41例百草枯中毒肺损害的CT表现,评估其影像学特点。结果:首次检查仅有3例有阳性表现,41例患者于中毒早期(1～7d)死亡8例,余者CT主要表现为仅支气管血管树增多、模糊10例,磨玻璃影18例,实变影4例,胸膜下线11例,肺索条影15例,支气管扩张5例,胸腔积液2例。中毒中期(8～14d)出现4例患者死亡,余者CT主要表现为支气管血管束增粗伴轨道状支气管扩张12例,磨玻璃影13例,肺实变13例,肺索条影9例,气胸1例,胸膜下线8例。中毒后期(>15d),死亡3例,余者CT表现以肺间质改变、肺实变、肺间质纤维化、胸腔积液为主。结论:百草枯中毒的CT表现与临床病理演变有很好的一致性,提高对CT的认识,对临床治疗及预后有很好的帮助。

Objective：To analyze and summarize the lung CT characteristics of parquet intoxication and improve the understanding of parquet intoxication for clinicians. Methods：The lung CT of 41 patients with parquet intoxication were ret- rospectively analyzed. Results：Only 3 cases had positive findings for the first time CT examination. Eight patients died with in 7 days. The other patients presented increasing and fuzziness of broncho-vascular markings in 10 cases,ground glass o pacity in 18 cases, consolidation in 4 cases,subpleural line in 11 cases,lung fibrosis in 15 cases, bronchiectasis in 5 cases and pleural effusion in 2 cases in early stage （1~7 days）. During the second stage （8414 days） ,4 patients died. The CT find ings included exaggeration of broncho-vascular markings with track shape bronchiectasis in 12 cases,ground glass opacity in 13 cases, consolidation in 13 cases, fibrosis in 9 cases, pneumothorax in 1 case and subpleural line in 8 cases. During later stage （〉15 days）, 3 patients died. The CT findings included pulmonary interstitial changes, consolidation, fibrosis and pleu ral effusion. Conclusion： The CT findings of parquet intoxication are consistent with the clinical and pathologic changes, which are helpful for the treatment and prognosis.