间接征象为与肺叶或段分布一致的栓塞处肺窗示肺纹理稀疏13例，胸膜下梗死灶15个，胸腔积液6例，肺动脉高压3例。
Indirect sign was reduced pulmonary vascular markings in 13 cases, subpleural infarction in 15 foci, pleural effusion in 6 cases, pulmonary hypertension in 3 cases.
间接征象为与肺叶或段分布一致的栓塞处肺窗示肺纹理稀疏13例，胸膜下梗死灶15个，胸腔积液6例，肺动脉高压3例。
Indirect sign was reduced pulmonary vascular markings in 13 cases, subpleural infarction in 15 foci, pleural effusion in 6 cases, pulmonary hypertension in 3 cases.
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