Objective: To evaluate the early diagnostic value of high resolution computed tomography(HRCT) in detecting lung involvement in patients with connective tissue diseases(CTD).

• 目的:提高结缔组织病(CTD)肺部病变的早期诊断,评价高分辨率CT(HRCT)对结缔组织病患者肺、胸膜病变早期诊断的价值。