特发性肺含铁血黄素沉着症的影像学表现及其与肺功能改变的相关性分析

目的分析特发性肺含铁血黄素沉着症(IPH)的影像学表现及其高分辨率CT(HRCT)表现与肺功能改变的相关性。方法回顾性分析15例IPH的影像学表现和临床资料。结果X线平片:毛玻璃样阴影9例;渗出影10例;网格状阴影7例;结节影6例。HRCT:支气管血管束改变12例;毛玻璃影12例;渗出影11例;结节影8例;小叶间隔增厚9例。HRCT上毛玻璃样阴影与肺功能的相关性分析:r=0.5394,P=0.134。HRCT上小叶间隔增厚与肺功能的相关性分析:r=0.9633,P=0.0001。结论HRCT对于病灶的显示较平片佳。小叶间隔的增厚程度与肺功能改变呈正相关,能预测肺功能的损害程度。

The Correlation Between Imaging Findings and Pulmonary Function Changes of Idiopathic Pulmonary Hemosiderosis

Objective To analyze imaging findings of IPH and to study the correlation between the HRCT findings and the pulmonary function of IPH.Methods The information of 15 children with IPH were reviewed.Results The X-ray findings of IPH included ground glass opacity(n=9),exudative shadows(n=10),reticulonodular shadows(n=7),nodular shadows(n=6).The HRCT signs included abnormal bronchovascular bundles(n=12),ground glass opacity(n=12),exudative shadows ( n=11 ) ,disseminated micronodular shadows ( n=8 ) , thickened pulmonary lobular septa ( n=9 ) . The correlation between ground glass opacity and pulmonary function was 0.5394 ( P=0.134); The correlation between thickened pulmonary lobular septa and the pulmonary function was 0.9963(P=0.0001).Conclusion The HRCT examination is better than the X-ray examination. The positive correlation between thickened pulmonary lobular septa and pulmonary function change is significant,it is beneficial to estimate the damage of the palmonary.