当前位置: X-MOL 学术Abdom. Radiol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Comparative accuracy of qualitative and quantitative 18F-FDG PET/CT analysis in detection of lymph node metastasis from anal cancer.
Abdominal Radiology ( IF 2.3 ) Pub Date : 2019-03-01 , DOI: 10.1007/s00261-019-01907-6
Thitinan Chulroek 1, 2 , Hamed Kordbacheh 1 , Dearada Wangcharoenrung 1, 3 , Kamonwon Cattapan 1, 4 , Pedram Heidari 1 , Mukesh G Harisinghani 1
Affiliation  

PURPOSE To compare the diagnostic performance of qualitative and quantitative 18F-FDG PET/CT in detection of regional and distant lymph node metastasis in patients with anal cancer. METHODS Between 2004 and 2017, 28 patients with anal cancer who had staging PET/CT and pathological assessment of suspicious lymph nodes were included. For qualitative analysis, positive lymph nodes were defined as uptake visually higher than the liver reference uptake. For quantitative study, lymph nodes were contoured to determine maximum standard uptake value (SUVmax) and metabolic tumor volume (MTV). Receiver operating characteristic (ROC) curves were plotted to extract the optimal cut-offs and area under the curve (AUC) of SUVmax, lesion to background (L/B) ratio, short axis diameter (SAD), and MTV of lymph nodes. Histopathologic analysis was a reference standard. RESULTS A total of 28 lymph nodes (24 inguinal, 2 external iliac, 1 internal iliac, and 1 paraaortic nodes) in 28 patients on PET/CT were included. With the qualitative visual analysis, 19 patients were categorized as positive for nodal metastasis with sensitivity, specificity, and accuracy of 85%, 75%, and 82%. The optimal SUVmax and L/B ratio cut-offs were 2.6 and 1.0 with both sensitivity and specificity of 95% and 75% (AUC of SUVmax = 0.893, AUC of L/B ratio = 0.912). Using the best cut-off of 1.6 cm for SAD and 3.65 cm3 for MTV, both sensitivity and specificity were 80% and 100% (AUC of SAD = 0.950, AUC of MTV = 0.931). CONCLUSIONS SUVmax optimization may be helpful in enhancing the diagnostic accuracy of 18F-FDG PET/CT in nodal staging patients with anal cancer.

中文翻译:

定性和定量18F-FDG PET / CT分析在检测肛门癌淋巴结转移中的比较准确性。

目的比较定性和定量18F-FDG PET / CT在检测肛门癌患者局部和远处淋巴结转移中的诊断性能。方法2004年至2017年间,纳入28例行PET / CT分期并对可疑淋巴结进行病理评估的肛门癌患者。为了进行定性分析,阳性淋巴结的定义是在视觉上摄取高于肝脏参考摄取。为了进行定量研究,对淋巴结进行轮廓分析,以确定最大标准摄取值(SUVmax)和代谢肿瘤体积(MTV)。绘制受试者工作特征(ROC)曲线以提取SUVmax,病灶与背景(L / B)比,短轴直径(SAD)和淋巴结MTV的最佳截止点和曲线下面积(AUC)。组织病理学分析是参考标准。结果共纳入28例PET / CT患者的28个淋巴结(腹股沟24个,gu外2个、,内1个和主动脉旁1个淋巴结)。通过定性视觉分析,对19例淋巴结转移阳性的患者进行了分类,敏感性,特异性和准确度分别为85%,75%和82%。最佳SUVmax和L / B比率的临界值分别为2.6和1.0,敏感性和特异性均为95%和75%(SUVmax的AUC = 0.893,L / B比率的AUC = 0.912)。使用SAD的1.6 cm的最佳截止值和MTV的3.65 cm3的最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。包括28例PET / CT患者中的1个内和1个主动脉旁结。通过定性视觉分析,对19例淋巴结转移阳性的患者进行了分类,敏感性,特异性和准确度分别为85%,75%和82%。最佳SUVmax和L / B比率的临界值分别为2.6和1.0,敏感性和特异性均为95%和75%(SUVmax的AUC = 0.893,L / B比率的AUC = 0.912)。使用SAD的1.6 cm的最佳截止值和MTV的3.65 cm3的最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。包括28例PET / CT患者中的1个内和1个主动脉旁结。通过定性视觉分析,对19例淋巴结转移阳性的患者进行了分类,敏感性,特异性和准确度分别为85%,75%和82%。最佳SUVmax和L / B比率的临界值分别为2.6和1.0,敏感性和特异性均为95%和75%(SUVmax的AUC = 0.893,L / B比率的AUC = 0.912)。使用SAD的1.6 cm的最佳截止值和MTV的3.65 cm3的最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。19例淋巴结转移阳性,敏感性,特异性和准确度分别为85%,75%和82%。最佳SUVmax和L / B比率的临界值分别为2.6和1.0,敏感性和特异性均为95%和75%(SUVmax的AUC = 0.893,L / B比率的AUC = 0.912)。使用SAD的1.6 cm的最佳截止值和MTV的3.65 cm3的最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。19例淋巴结转移阳性,敏感性,特异性和准确度分别为85%,75%和82%。最佳SUVmax和L / B比率的临界值分别为2.6和1.0,敏感性和特异性均为95%和75%(SUVmax的AUC = 0.893,L / B比率的AUC = 0.912)。使用SAD的1.6 cm的最佳截止值和MTV的3.65 cm3的最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。使用SAD的1.6 cm的最佳截止值和MTV的3.65 cm3的最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。使用SAD的1.6 cm最佳截止值和MTV的3.65 cm3最佳截止值,灵敏度和特异性均为80%和100%(SAD的AUC = 0.950,MTV的AUC = 0.931)。结论SUVmax的优化可能有助于提高18F-FDG PET / CT对结直肠癌分期患者的诊断准确性。
更新日期:2019-01-29
down
wechat
bug