Within 6 hours and during 6 to 12 hours after onset of MCI,hyperdense MCA, encephaledema and hypodense area were found on CT in some patients.
发病6小时内和6～12小时,头颅CT平扫发现部分患者呈现MCA高密度征、脑水肿征以及低密度区。
参考来源 - 大面积脑梗塞的临床与影像学分析·2,447,543篇论文数据，部分数据来源于NoteExpress
There were also slightly hypodense shadow with hazy border in the basal part of the pons.
桥脑基底部也有稍低密度影，边缘模糊。
Delayed scan, the hypodense edema ring enhanced and became isodense, or the abscess enhanced diffusely, the lesions became smaller and the colliquative necrosis area more obvious.
延时，脓肿周围低密度水肿环可强化为等密度，或脓肿内部强化，病变范围缩小，液化坏死区更显明显。
After contrast-enhanced scans, hypodense areas and cavities seen on precontrast CT images had no enhancement but remainder consolidation areas had significant enhancement with 44 HU value.
平扫低密度区及空洞增强后无强化，其余实变区域强化明显，强化前后CT差值平均约44 HU。
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