结论：强化实际操作的实习带教方法，在医学影像技术教学中收到了良好效果。
The conclusion is that we strengthen the practice and teaching methods of actual operation, which get a good result in the teaching of medical imaging technology.
影像上肿块的中心位于高位的鼻穹窿，并且在T2序列上其信号强度不一，强化也不均匀。
On imaging, the tumour center is in the high nasal vault and demonstrates variable signal intensity on T2 weighted imaging with subsequent heterogeneous enhancement.
影像学表现类似侵袭性肿瘤，增强扫描可见强化，占位效应明显。
Imaging features resemble an aggressive mass lesion with enhancement and mass effect.
灌注影像显示脑血容量增高区域超过强化的区域，提示了肿瘤的浸润。
Perfusion images may show elevated regional cerebral blood volume beyond the area of enhancement, suggestive of tumor infiltration.
对所有患者均进行双螺旋CT扫描，分别获取血管相和肝脏最大强化相影像。
Helical CT scan images were obtained in the vascular phase and the maximal hepatic enhancement phase.
影像上表现为环状强化，囊壁增厚。
Imaging studies show ring enhancement and capsular thickening.
结论骨肿瘤对强化扫描具有较高的灵敏性和特异性，能为临床诊断、治疗提供有价值的影像学信息。
Conclusion The aggrandized scanning towards bone tumors is sensitive and differential, which can perform valuable information of diagnosis and treatment of diseases.
影像学上ct表现为高密度或混杂密度，增强扫描呈不同程度强化。
Hyperintensity or mixed density was showed on non-contrast CT scan and enhanced in varying degrees on contrast CT scan.
目的：分析脑内环形强化病灶的MRI影像学特征，探讨脑转移瘤、胶质瘤、脑脓肿鉴别诊断要点。
Objective To study the MRI manifestations and the differential diagnosis of brain metastasis, astrocytoma and brain abscess.
MR影像上，在T1序列上中央坏死显示中度强度的信号，T2序列上呈低信号，增强扫描有强化。
On MR images, the necrotic center of the nodes will show intermediate signal intensity on T1-weighted images, low signal intensity on T2-weighted images, and will enhance with contrast.
它可能是太阳系形成初期时，由一颗大型的小行星所造成的。在这幅色彩经过强化的拼嵌影像里，这个寛达1,500公里的盆地带有黄色之色调。
Created during the early history of the solar system by the impact of a large asteroid-sized body, the basin spans about 1,500 kilometers and is seen in yellowish hues in this enhanced color Mosaic.
它可能是太阳系形成初期时，由一颗大型的小行星所造成的。在这幅色彩经过强化的拼嵌影像里，这个寛达1,500公里的盆地带有黄色之色调。
Created during the early history of the solar system by the impact of a large asteroid-sized body, the basin spans about 1,500 kilometers and is seen in yellowish hues in this enhanced color Mosaic.
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