我院1997－1998年的18例胸腔积液患者，均为男性，年龄32－60岁，临床上均经拍胸片及B超证实有胸腔积液，有16例提示中一大量胸腔积液，2例为少量胸腔积液。对18例患者进行肺功能测定，应用日本chest公司SuPe广七5型肺功能仪，该仪器带有电脑及打印装置，全部结果可自动校正至 18 cases of pleural effusion in our hospital from 1997 to 1998, were male, aged 32-60 years, clinically by chest X-ray and B ultrasound confirmed pleural effusion, 16 cases prompted a large number of pleural effusion , 2 cases of a small amount of pleural effusion. Pulmonary function tests were performed in 18 patients. The SuPe Guangqi 5 type lung function meter of the Japanese chest company was used. The instrument was equipped with a computer and a printing device. All the results were automatically corrected to