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目的分析脉冲振荡技术(IOS)用于矽肺病患者肺功能早期诊断及随访中的价值。方法对连续接触3年以上硅粉尘且经螺旋CT扫描诊断并确诊为矽肺病患者90例进行IOS检测,并与常规通气功能检测结果进行对比,比较不同分期矽肺病患者的IOS指标情况。结果 IOS检测总阳性率为91.11%,常规通气检测患者的总阳性率为78.89%,差异有统计学意义(P<0.05);Ⅲ期矽肺患者的Fres和R5-R20等指标情况显著高于Ⅰ期和Ⅱ期矽肺病患者,X5指标显著低于Ⅰ期、Ⅱ期患者,差异均有统计学意义(P<0.05)。结论采用IOS诊断早期矽肺病患者具有较高的阳性率,有助于患者的早期诊断,同时可反映患者的病变程度。
Objective To analyze the value of pulse oscillation technique (IOS) in the early diagnosis and follow-up of pulmonary function in patients with silicosis. Methods IOS was detected in 90 patients diagnosed as silicotic disease by continuous spiral CT scanning for more than three years and compared with routine ventilatory function test results. The IOS indexes of patients with different stages of silicosis were compared. Results The positive rate of IOS was 91.11%, and the positive rate of routine ventilation was 78.89% (P <0.05). The indexes of Fres and R5-R20 in patients with stage Ⅲ silicosis were significantly higher than those of Ⅰ Patients with stage II and stage II silicosis had significantly lower X5 index than stage I and II patients (P <0.05). Conclusion IOS diagnosis of early silicosis patients with a higher positive rate, contribute to the early diagnosis of patients, and can reflect the degree of patient’s disease.