摘要
目的:总结分析单发肺癌脑转移病灶的MRS表现,以提高对单发肺癌脑转移瘤的认识。方法:手术病理证实的20例单发肺癌脑转移瘤病例,术前接受MRS检查。分析其磁共振波谱成像表现特征,分别测定肿瘤实质、坏死/囊变部分、瘤周水肿部分及正常脑实质Cho/Cr、NAA/Cr、NAA/Cho等代谢比率。结果:肿瘤实质部分Cho峰多降低,Cr峰降低,NAA峰多测不到。肿瘤组织与瘤周水肿区及正常脑实质的代谢比率(Cho/Cr)有差异性,而瘤周水肿区与正常脑实质的代谢比率无明显差异。结论:单发肺癌脑转移瘤磁共振波谱成像有一定的特点,有助于其诊断和鉴别诊断。
Objective：Our goal was to promote the diagnosis of singular brain metastasis from lung cancer through summarizing the appearance of MRS. Methods：20 eases of singular brain metastasis from lung cancer received MRS. The ratio of Cho/Cr, NAA/Cr and NAA/Cho were measured in tumor, peritumoral region and normal brain. Results：The peak of Cho in the parenehymatous parts of the tumor was deeresed mostly, and the peak of NAb. was absent in most eases.The difference of Cho/Cr among tumor, peritumoral region and normal brain were found significantly. Conclusion： Some features can be found in singular brain metastases with magnetic resonance spectroscopy, which is helpful in the diagnosis and differential diagnosis.
出处
《医学影像学杂志》
2008年第1期8-10,共3页
Journal of Medical Imaging
关键词
转移瘤
脑
肺癌
磁共振成像
波谱
Tumor metastases,brain
Lung cancer
Magnetic resonance imaigng
Spectroscopy
