CT与MRI图像配准与融合技术在颅脑肿瘤的初步应用  

The Preliminary Use of Register and Fusion of CT-MR Images in Craniocerebral Tumor

作　　者：李坤成[1] 李永忠 赵富强[2] 赵欣[1] 

机构地区：[1]首都医科大学宣武医院医学影像学部放射科,北京100053 [2]首都医科大学生物医学工程学院

出　　处：《中国医学影像技术》2001年第9期823-825,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的　探讨头颅CT与MRI图像配准融合技术在颅脑肿瘤的初步应用价值。方法　 1 8例颅脑肿瘤患者 ,包括男 7例 ,女 1 1例 ,年龄 1 5～ 72岁、平均 49岁。全部病例在 7天内先后行CT和MRI扫描 ,其中脑膜瘤 7例 ,胶质瘤 6例 ,神经鞘瘤 5例。CT和MRI图像均经SGI OCTANE工作站系统处理 ,应用最大互信息法 (mutualinformation)进行配准 ,然后从颅骨、血管、病变边缘、病变内部结构、病变与颅骨的关系 ,以及病变与周围血管的关系等六个方面对配准后图像与原始图像进行显像质量和信息量的比较判别。结果　经最大互信息法配准处理后的图像显示病变与颅骨、病变与周围血管的关系方面优于原始的CT和MRI图像 ,而在显示颅骨、血管、病变本身的形态方面无显著优势。结论　头颅CT与MRI配准图像可以增加颅脑肿瘤的诊断信息 。Purpose To probe the preliminary useful value of register and fusion of CT and MR images in craniocerebral tumor. Methods Eighteen patients with craniocerebral tumor were studied, in which there were 7 meningioma, 6 glioma, and 5 neurinoma, and 7 male,and 11 female. The age of the patients was from 15 to 72 years, and the mean age was 49 years. The CT and MR images were successively acquired in 7 days. CT and MR images were registered, then the cranial bone, vessel, the margin of the lesion, the inner structure of the lesion, the relationship of the lesion with cranial bone, as well as the relationship of the lesion with peripheral vessel were analysed and the registered images were compared with primitive CT and MR images to evaluate the quality and information content. Results The registered images was superior to primitive CT and MR images in the relationship of the lesion with cranial bone and the relationship of the lesion with peripheral vessel, but no advance in demonstration of cranial bone, vessel and the structure of the lesions themselves. Conclusion The registered images can increase diagnostic information in craniocerebral tumor, and should be studied further.

关 键 词：计算机体层摄影 磁共振成像 配准 颅脑肿瘤 诊断 

分 类 号：R739.410.4[医药卫生—肿瘤]