CT在肺结核诊断中的价值

The diagnostic value of CT in pulmonary tuberculosis

目的 探讨CT对肺结核的诊断价值。方法 回顾性对比分析 98例具有完整临床资料的肺结核患者的胸部正侧位片、病灶断层及CT表现。结果 (1 )肺内病变主要分布于上叶尖后段及下叶背段 ,其次为上叶前段和下叶各基底段。(2 )胸部CT对肺内隐蔽部位结核病变的显示率明显高于胸片及病灶断层 (P <0 .0 5)。 (3)胸部CT对病灶内钙化、纵隔内淋巴结肿大、纵隔内淋巴结钙化及肺气肿、肺大泡、限局性气胸的显示率明显高于另两项检查 (P <0 .0 5)。 (4)对各种形态阴影的显示无明显差异 (P >0 .0 5)。

Objective To determine the diagnostic value of C T in pu lmonary tuberculosis.Methods An retrospective analysis were don e through comparing the clinical information,X-ray film and CT film of 98 patie nts with pulmonary tuberculosis.Results (1)Most of intrapulmonary lesions located in superior lobe apicoposterior segmen t and lower lobe dorsal segment, superior lobe anterior segment and lower lobe b asal segment.(2)The show rate of the lesions on chest CT films was significant h igher than that of X-ray films.(3)The show rates of focal calcification,inner- mediastinum lymph node enlargement,inner-mediastinum lymph node calcification, bullae of lung,pulmonary barotrama,pneumathorax in chest CT films were significa nt higher than that of X-films (P<0.05).(4)There was no significant differe nce on show rates for various shadows in CT films and X-ray films.Conclusion The value of chest CT for providing evidences for di agnosis of TB is very higher.