百草枯肺损伤MSCT征象与中毒机制的对照研究

目的 探讨百草枯中毒肺MSCT(多层计算机X线断层扫描)征象及其中毒机制.方法 对百草枯中毒患者的不同时期分别行胸部MSCT检查,并对30例胸部MSCT影像征象及其中毒机制进行回顾性分析.结果 30例病例均出现了肺纹理增多、磨玻璃征,部分出现肺实变、胸水和气肿,存活到晚期者均见到肺纤维化.结论 百草枯中毒在肺部有明确的影像学征象,其中毒机制与影像学表现密切相关,MSCT征象与中毒机制的对照研究对临床治疗有不可或缺的指导意义.

Comparative study on MSCT findings of paraquat-induced pulmonary damage and the mechanism of intoxication

Objective To investigate the MSCT manifestations of paraquat-induced pulmonary damage and the mechanism of intoxication. Methods The chest MSCT examination was performed in 30 patients with paraquat poisoning. The MSCT manifestations of paraquat-induced pulmonary damage and the mechanism of intoxication in 30 patients were retrospectively analyzed. Results All the 30 cases showedthe increase of lung marking and ground glass sign, some cases showed consolidation, pleural fluid effusion and emphysema. All the survivals showed pulmonary fibrosis in late stage. Conclusion The paraquat poisoning has definite image characteristics. The image characters is related with the mechanism of paraquat toxicity. The contrast study of MSCT findings and mechanism of intoxication plays an important role in clinical treatment.