肝血管瘤3例动脉期瘤内无强化，门静脉期呈向心性填充增强，持续数分钟后消退； 余4例良性病灶变化不典型。
The 3 cases of haemangioma were enhanced centripetally in portal phase and washed out after several minutes without arterial enhancement and the other 4 benign cases without typical enhancement.
结论增强扫描明显均匀强化，且垂体可见，并出现脑膜尾征以及颈内动脉受推压为鞍内脑膜瘤的特征。
Conclusion Homogeneous enhancement, visibility of the pituitary gland, the dural tail sign and compression of the carotid artery are the characteristics of the intrasellar meningioma.
结论使用超声造影剂可明显增强颅内血管信号强度，提高颅内动脉瘤的检出率。
Conclusions Ultrasound contrast agent Levovist improves signal of blood flow obviously. It increases the diagnostic accuracy for intracranial aneurysms and the level of confidence.
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