摘要
18F—FDG PET作为一种功能显像技术,通过一次性全身显像,可以检出常规影像学检查阴性的隐匿病灶,对于鼻咽癌颈部淋巴结转移、远处转移有较高的临床价值,对于疗效监测、早期检测残存或肿瘤复发方面也优于传统的影像学方法。但PET对局部组织结构分辨能力远不如 CT和MRI,PET—CT则通过解剖和功能图像的融合技术克服了这一缺陷。
^18F-fluorodeoxyglucose (^18F-FDG) PET is a king of funetional imaging technique. It can reveal occult distant metastases on routine imaging. It has a sigvtificaut clinical impact nn detecting cervical nodal involvement, distant vnetastasis. ^18F-FDG PET is also superior to convewtional anatomic imaging modalities in monitoring curative effect and differentiating reenrrent or residual disease from therapy-induced changes in nasopharyngeal carcinoma. Compared with CT and MRI, the inherent limitation of ^18F-FDG PET is poor anatomic resolution. Comhined PET and CT ( PET-CT ) can often overcome these difficuhies by fusing anatomic and physiological data.
出处
《国际放射医学核医学杂志》
2006年第2期94-97,共4页
International Journal of Radiation Medicine and Nuclear Medicine