The incidence of umbilicated indentation in astrocytoma, cerebral metastases and brain abscess was nearly the same, showing no value in qualitative diagnosis.
壁脐样凹陷在星形细胞来源肿瘤、脑转移瘤、脑脓肿三者中出现率相近，无明显定性价值。
试验法，压法
The incidence of umbilicated indentation in astrocytoma, cerebral metastases and brain abscess was nearly the same, showing no value in qualitative diagnosis.
壁脐样凹陷在星形细胞来源肿瘤、脑转移瘤、脑脓肿三者中出现率相近，无明显定性价值。
Calcification, air-bronchogram, cavity and pleural indentation of the lesion in the peripheral lung cancer were better displayed by spiral than by conventional CT.
螺旋CT扫描对病灶内钙化、空泡、空气支气管、空洞及病灶局部胸膜凹陷等征象均优于常规CT。
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