Objective To determine MRI signal features of occult lung cancer and its metastasis in mediastinum, and to assess the diagnostic accuracy of MR technique.
目的确定隐匿性肺癌及其纵隔转移的MRI信号特征，并评价MR技术的诊断准确性。
The applications of AFB include localization of roentgenographically occult lung cancer, detection of synchronous tumors, estimation of the extent of field cancerization, chemoprevention studies, etc.
AFB的适应证包括隐性肺癌的定位诊断、同期癌变组织的探查、评估局部癌变的程度、化学预防的研究等。
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