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目的 探讨高原肺水肿的CT诊断价值。方法 对 16例急性高原适应不全患者进行胸部CT检查 ,总结其CT表现。结果 其CT表现 :(1)早期为磨玻璃样密度增高影 ,多出现于下叶背段及后基底段 ,且右下叶早于左下叶 ;(2 )中期为云絮状密度增高影 ,若早期未得到及时有效的治疗 ,则病变密度逐渐增高而形成云絮状密度增高影 ;(3)晚期可发展到上叶后段及前段 ,病变充满整个肺叶 ,可见受累肺段支气管充气 ;(4 )右肺表现重于左肺。结论 CT是高原肺水肿较理想的检查手段。对于高原肺水肿 ,CT诊断的准确率达 10 0 %。
Objective To investigate the value of CT in the diagnosis of high altitude pulmonary edema. Methods Twenty-six patients with acute plateau insufficiency underwent chest CT examination and their CT findings were summarized. Results The CT findings were as follows: (1) The early appearance of milled glass-like density increased mostly in the lower and the posterior basal segments of the lower lobe and the lower right lobe was earlier than the lower left lobe; (2) If the early did not receive timely and effective treatment, the lesion density gradually increased and the formation of fluffy density increased shadow; (3) advanced to the posterior segment of the upper lobe and anterior segment, the lesion fills the entire lobe, bronchial airway infiltration can be seen; ( 4) The performance of the right lung is heavier than that of the left lung. Conclusion CT is a better method of examination of plateau pulmonary edema. For high altitude pulmonary edema, CT diagnostic accuracy rate of 10%.