摘要： 磁敏感加权成像可以无创地显示颅内静脉结构，对脑肿瘤、血管畸形等疾病具有重要临床意义。该文分析磁敏感加权独特的成像后处理和重建算法的具体步骤，通过仿真图像验证其有效性。该方法对幕上微小静脉结构、肿瘤及血管畸形病灶的显示敏感性优于传统磁共振成像法。

关键词: 磁共振成像, 磁敏感加权成像, 相位

Abstract:

Susceptibility Weighted Imaging(SWI) non-invasively displays the intracranial venous structure, which is significant in the clinical diagnosis of brain tumor, vascular malformation, and other central nervous diseases. This paper analyzes the unique image post-processing and reconstruction algorithm of SWI, and verifies its effectiveness through simulation images. This algorithm proves a better sensitivity to supratentonial venous and the lesion territory of tumor and vascular malformation compared with the traditional Magnetic Resonance Imaging(MRI) methods.

Key words: Magnetic Resonance Imaging(MRI), Susceptibility Weighted Imaging(SWI), phase

中图分类号: 

• TP391