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目的 :评价高分辨率 CT(HRCT)对外源性过敏性肺泡炎的诊断价值。方法 :回顾性分析经纤维支气管镜检查和肺泡灌洗术证实的 16例外源性过敏性肺泡炎的 HRCT表现 ,急性期 2例 ,亚急性期 10例 ,慢性期 4例。结果 :外源性过敏性肺泡炎HRCT主要表现为 :微结节和 /或结节 ,气腔实变 ,磨玻璃样变 ,小叶间隔增厚及蜂窝状改变。发病的不同时期其主要改变各异。结论 :HRCT是诊断外源性过敏性肺泡炎最有价值的无创性检查 ,根据本病的 HRCT特征 ,结合临床病史 ,可不依赖支气管镜或肺活检而明确诊断
Objective: To evaluate the diagnostic value of high resolution CT (HRCT) in extrinsic alveolar alveolitis. Methods: The HRCT findings of 16 cases of exogenous allergic alveolitis confirmed by bronchoscopy and bronchoalveolar lavage were retrospectively analyzed. There were 2 cases of acute exacerbation of alveolitis, 10 cases of subacute phase and 4 cases of chronic phase. Results: The extrinsic hypersensitivity alveolitis HRCT mainly manifested as micro nodules and / or nodules, air cavity consolidation, ground glass-like changes, interlobular septal thickening and honeycomb changes. The main changes in different stages of the disease vary. CONCLUSIONS: HRCT is the most valuable noninvasive diagnosis of extrinsic hypersensitivity alveolitis. Based on the features of HRCT and clinical history, HRCT can be diagnosed without bronchoscopy or lung biopsy