论文部分内容阅读
[目的]对比PET/CT与MRI诊断鼻咽癌颅底、颅内侵犯的效能,评估PET/CT对以MRI为基础的鼻咽癌T分期影响。[方法]2005年1月至2009年12月,60例患者均行PET/CT和MRI检查,对比PET/CT和MRI的诊断效能及T分期结果。[结果]PET/CT和MRI对鼻咽癌颅底侵犯的敏感性、特异性、准确率分别为96.7%、60.0%和78.3%;76.7%、93.3%和85.0%。PET/CT使28.3%病例T分期提高,8.3%病例T分期下降。[结论]虽然PET/CT对鼻咽癌原发灶侵犯范围的评估效能与MRI相仿,但如以PET/CT作为鼻咽癌分期基础,可能使T分期提高,临床需予以重视。
[Objective] To evaluate the diagnostic value of PET / CT and MRI in the diagnosis of skull base and intracranial invasion of nasopharyngeal carcinoma (NPC) and to evaluate the effect of PET / CT on T stage of MRI-based nasopharyngeal carcinoma. [Methods] From January 2005 to December 2009, 60 patients underwent PET / CT and MRI examinations to compare the diagnostic efficacy and T staging results of PET / CT and MRI. [Results] The sensitivity, specificity and accuracy of PET / CT and MRI for skull base invasion of nasopharyngeal carcinoma were 96.7%, 60.0% and 78.3%, 76.7%, 93.3% and 85.0%, respectively. PET / CT increased the T stage of 28.3% of cases, and decreased the T stage of 8.3% of cases. [Conclusion] Although PET / CT can evaluate the extent of invasion of primary tumor of nasopharyngeal carcinoma similar to MRI, if PET / CT is used as the staging base of nasopharyngeal carcinoma, the staging of T may be improved, which should be paid more attention in clinic.