Objective To study the clinical value of chest Xray and spiral ct scan in diagnosis of mediastinal emphysema.

目的：探讨x线胸片和螺旋CT对纵隔气肿的诊断价值。

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Objective To study the clinical value of chest Xray and spiral ct scan in diagnosis of mediastinal emphysema.

目的：探讨x线胸片和螺旋CT对纵隔气肿的诊断价值。

youdao