AIM： To evaluate the role of positron emission tomography using 18F-fluorodeoxyglucose （FDG-PET） in the surgical management of patients with pancreatic cancer, including the diagnosis, staging, and selection of pat...AIM： To evaluate the role of positron emission tomography using 18F-fluorodeoxyglucose （FDG-PET） in the surgical management of patients with pancreatic cancer, including the diagnosis, staging, and selection of patients for the subsequent surgical treatment. METHODS： This study involved 53 patients with proven primary pancreatic cancer. The sensitivity of diagnosing the primary cancer was examined for FDG-PET CT, cytological examination of the bile or pancreatic juice, and the serum levels of carcinoembrionic antigens （CEA） and carbohydrate antigen 19-9 （CA29-9）. Next, the accuracy of staging was compared between FDG-PET and CT. Finally, FDG-PET was analyzed semiquantitatively using the standard uptake value （SUV）. The impact of the SUV on patient management was evaluated by examining the correlations between the SUV and the histological findings of cancer. RESULTS： The sensitivity of FDG-PET, CT, cytological examination of the bile or pancreatic juice, and the serum levels of CEA and CA19-9 were 92.5%, 88.7%, 46.4%, 37.7% and 69.8%, respectively. In staging, FDG-PET was superior to CT only in diagnosing distant disease （bone metastasis）. For local staging, the sensitivity of CT was better than that of FDG-PEr. The SUV did not correlate with the pTNM stage, grades, invasions to the vessels and nerve, or with the size of the tumor. However, there was a statistically significant difference （4.6 ± 2.9 vs 7.8 ± 4.5, P = 0.024） in the SUV between patients with respectable and unresectable disease. CONCLUSION： FDG-PET is thus considered to be useful in the diagnosis of pancreatic cancer. However, regarding the staging of the disease, FDG-PET is not considered to be a sufficiently accurate diagnostic modality. Although the SUV does not correlate with the patho-histological prognostic factors, it may be useful in selecting patients who should undergo subsequent surgical treatment.展开更多
背景与目的:18FDG-PET诊断非小细胞肺癌(NSCLC)时,原发灶最大标准化摄取值(maximal standard uptake value,SUVmax)起关键作用。本研究旨在探讨影响SUVmax的相关临床因素。方法:回顾性分析92例NSCLC患者完全性切除术前所作的18FDG-PET结...背景与目的:18FDG-PET诊断非小细胞肺癌(NSCLC)时,原发灶最大标准化摄取值(maximal standard uptake value,SUVmax)起关键作用。本研究旨在探讨影响SUVmax的相关临床因素。方法:回顾性分析92例NSCLC患者完全性切除术前所作的18FDG-PET结果,对可能影响原发灶SUVmax的各种临床因素作偏相关分析、单因素方差分析、多重回归与相关分析。结果:偏相关分析提示SUVmax与原发灶大小、病理分期相关(P<0.05),但与年龄、病理分化程度、新辅助化疗疗效无相关性;单因素方差分析揭示腺癌(53例)、鳞癌(24例)、腺鳞癌(4例)、大细胞癌(4例)、鳞腺癌(2例)、巨细胞癌(2例)和细支气管肺泡细胞癌(2例)的平均SUVmax分别为5.18±4.46、7.65±3.57、5.84±3.02、3.35±2.47、6.00±4.59、4.30±1.70和5.85±4.15,组间的平均SUVmax差异无显著性;多重回归与相关分析显示SUVmax仅与原发灶大小相关,但与病理类型、病理分化程度、病理分期、年龄、新辅助化疗无相关性。结论:偏相关分析提示NSCLC原发灶SUVmax与原发灶大小、病理分期相关,单因素方差分析揭示SUVmax在NSCLC各病理类型之间差异无显著性,多重回归与相关分析显示SUVmax仅与原发灶大小相关。展开更多
文摘AIM： To evaluate the role of positron emission tomography using 18F-fluorodeoxyglucose （FDG-PET） in the surgical management of patients with pancreatic cancer, including the diagnosis, staging, and selection of patients for the subsequent surgical treatment. METHODS： This study involved 53 patients with proven primary pancreatic cancer. The sensitivity of diagnosing the primary cancer was examined for FDG-PET CT, cytological examination of the bile or pancreatic juice, and the serum levels of carcinoembrionic antigens （CEA） and carbohydrate antigen 19-9 （CA29-9）. Next, the accuracy of staging was compared between FDG-PET and CT. Finally, FDG-PET was analyzed semiquantitatively using the standard uptake value （SUV）. The impact of the SUV on patient management was evaluated by examining the correlations between the SUV and the histological findings of cancer. RESULTS： The sensitivity of FDG-PET, CT, cytological examination of the bile or pancreatic juice, and the serum levels of CEA and CA19-9 were 92.5%, 88.7%, 46.4%, 37.7% and 69.8%, respectively. In staging, FDG-PET was superior to CT only in diagnosing distant disease （bone metastasis）. For local staging, the sensitivity of CT was better than that of FDG-PEr. The SUV did not correlate with the pTNM stage, grades, invasions to the vessels and nerve, or with the size of the tumor. However, there was a statistically significant difference （4.6 ± 2.9 vs 7.8 ± 4.5, P = 0.024） in the SUV between patients with respectable and unresectable disease. CONCLUSION： FDG-PET is thus considered to be useful in the diagnosis of pancreatic cancer. However, regarding the staging of the disease, FDG-PET is not considered to be a sufficiently accurate diagnostic modality. Although the SUV does not correlate with the patho-histological prognostic factors, it may be useful in selecting patients who should undergo subsequent surgical treatment.
文摘背景与目的:18FDG-PET诊断非小细胞肺癌(NSCLC)时,原发灶最大标准化摄取值(maximal standard uptake value,SUVmax)起关键作用。本研究旨在探讨影响SUVmax的相关临床因素。方法:回顾性分析92例NSCLC患者完全性切除术前所作的18FDG-PET结果,对可能影响原发灶SUVmax的各种临床因素作偏相关分析、单因素方差分析、多重回归与相关分析。结果:偏相关分析提示SUVmax与原发灶大小、病理分期相关(P<0.05),但与年龄、病理分化程度、新辅助化疗疗效无相关性;单因素方差分析揭示腺癌(53例)、鳞癌(24例)、腺鳞癌(4例)、大细胞癌(4例)、鳞腺癌(2例)、巨细胞癌(2例)和细支气管肺泡细胞癌(2例)的平均SUVmax分别为5.18±4.46、7.65±3.57、5.84±3.02、3.35±2.47、6.00±4.59、4.30±1.70和5.85±4.15,组间的平均SUVmax差异无显著性;多重回归与相关分析显示SUVmax仅与原发灶大小相关,但与病理类型、病理分化程度、病理分期、年龄、新辅助化疗无相关性。结论:偏相关分析提示NSCLC原发灶SUVmax与原发灶大小、病理分期相关,单因素方差分析揭示SUVmax在NSCLC各病理类型之间差异无显著性,多重回归与相关分析显示SUVmax仅与原发灶大小相关。
