论文部分内容阅读
目的:探讨脱氧葡萄糖-正电子发射计算机断层[18F-FDG-PET/CT(PET/CT)]融合显像对颈淋巴结转移癌的诊断价值。方法:对照颈淋巴结清扫术后病理结果,回顾性对比分析20例头颈癌患者颈部正电子发射断层(PET)、CT及PET/CT资料。结果:PET对颈淋巴结转移癌的诊断敏感性、特异性及准确度分别为92.3%、85.7%、90.0%,CT分别为77.0%、57.1%、70.0%,PET/CT分别为92.3%、100.0%、95.0%,PET/CT的诊断准确度显著高于CT(P<0.05)、略优于PET。13例鼻咽癌放疗后患者,CT诊断正确7例,PET/CT诊断正确12例。7例N0患者颈淋巴结清扫术后病理证实4例存在颈淋巴结转移,术前PET/CT均诊断正确。结论:PET/CT融合显像对颈淋巴结转移癌的诊断价值优于单独的PET及CT,尤其对于治疗后的患者,其诊断优势更加突出,有望作为是否需行颈淋巴结清扫术的指征。
Objective: To investigate the diagnostic value of deoxyglucose-positron emission computed tomography (PET / CT) fusion imaging in cervical lymph node metastases. Methods: The pathological results of cervical lymph node dissection were compared retrospectively to analyze the positron emission tomography (PET), CT and PET / CT data of 20 patients with head and neck cancer. Results: The sensitivity, specificity and accuracy of PET in the diagnosis of cervical lymph node metastasis were 92.3%, 85.7% and 90.0%, respectively. The CT and CT were 77.0%, 57.1% and 70.0% respectively. The PET / CT were 92.3% and 100.0% %, 95.0%, PET / CT diagnostic accuracy was significantly higher than CT (P <0.05), slightly better than PET. Thirteen cases of nasopharyngeal carcinoma after radiotherapy, CT correct diagnosis in 7 cases, PET / CT diagnosis of correct in 12 cases. Seven cases of N0 patients with cervical lymph node dissection pathological confirmed 4 cases of cervical lymph node metastasis, PET / CT were diagnosed correctly. Conclusion: The diagnostic value of PET / CT fusion imaging in cervical lymph node metastases is better than that of PET and CT alone. Especially for patients after treatment, the diagnostic advantages of PET / CT fusion imaging are more prominent. It is expected to be used as an indication of cervical lymph node dissection.