PET/MRI 融合显像在脑胶质瘤诊断和治疗中的研究进展

The advancement of PET/MRI on the diagnosis and treatment of brain gliomas

脑胶质瘤发病率较高，是颅内最常见的原发肿瘤。MRI技术在脑胶质瘤分级、手术定位和术后放疗靶区勾画中有着重要的作用。但是，越来越多的研究发现，MRI在肿瘤显像方面仍存在局限性，如准确确定肿瘤边界。PET利用组织代谢原理进行功能显像，有利于发现增殖活跃的肿瘤组织。PET与MRI图像的融合，实现了解剖与功能共同显像，为提高脑胶质瘤诊断的准确性提供了一条新途径。

There is a high incidence of glioma which is the most common primary intracranial tumor. MRI has been dominant in grading tumors, fixing the position for operations and targeting volume delineation for postoperative radiotherapy of gliomas. Nevertheless more and more researches have demonstrated its pitfalls on several aspects of tumors, such as defining the exact border. Whereas, PET showing the metabolism is skilled in seeking vigorous tumors. It is an innovative approach for the hybrid of PET and MRI to improve the diagnosis of gliomas.