Objective To study the HRCT findings of idiopathic interstitial pulmonary fibrosis. Methods HRCT data of 98 cases of idiopathic interstitial pulmonary fibrosis comformed clinically were collected. There were 55 men and 43 women,age ranged 33 - 87 years (mean age 67. 07 years). CT scans were done at Toshiba or Philips spiral CT unit,and origin CT data were constructed in 1- 2 mm at workstation. Results 98 cases were all found with pulmonary interstitial fibrosis in different degree. According to the characteristics of the lungs, the lesions could be classified as the slight lesion (n = 28) , moderate lcsion(n = 20) and severity lcsion(n- 50). According to the HRCT characteristics of lesions, the lesions could also be divided two stages,the effusion active stagc(n = 70,71. 7%) and stable stagc(n = 28 ,28. 6%). MSCT findings in 24 cases were compared before and after treatment,it showed that the lesions were getting better in 11 cases( 45.8%), unchanged in 5 cases( 20. 8% ) ,and advanced in 8 cases( 33. 3 % ). Conclusion HRCT is of important value in the classification, staging and follow-up of the idiopathic interstitial pulmonary fibrosis.%目的 研究特发性肺间质纤维化高分辨率CT表现.方法 收集98例经临床确诊的特发性肺间质纤维化高分辨率CT资料,其中男55例,女43例,年龄33~87岁,平均67.04岁.全部病例使用东芝公司或飞利浦公司的螺旋CT机,在工作站做1~2 mm层厚的高分辨率重建.结果 98例发现不同程度的肺间质纤维化损害.按照肺损害特点,可将其分为轻度损害28例,中度20例,重度50例.按照病变HRCT特征可分为渗出活动型70例(71.4%),静止稳定型28例(28.6%).24例做治疗前后HRCT比较,发现治疗后好转11例(45.8%),未见变化5例(20.8%),病变进展型8例(33.3%).结论 HRCT对特发性肺间质纤维化的分度、分期及治疗后随诊观察有重要的指导意义.
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