Objective:To assess the prognostic value of maximum standardized uptake value(SUVmax),metabolic tumor volume(MTV),and total lesion glycolysis(TLG)determined by 18F-fluorodeoxyglucose positron emission tomography-compu...Objective:To assess the prognostic value of maximum standardized uptake value(SUVmax),metabolic tumor volume(MTV),and total lesion glycolysis(TLG)determined by 18F-fluorodeoxyglucose positron emission tomography-computed tomography(18F-FDG PET/CT)imaging in Hodgkin’s lymphoma patients.Methods:A total of 148 Hodgkin’s lymphoma patients diagnosed with lymph node biopsy from October 2014 to October 2015 were retrospectively analyzed followed by categorizing into good(125 cases)and poor(23 cases)prognosis groups.The chi-squared test was used to analyze the clinicopathological characteristics of Hodgkin’s lymphoma patients with the semi-quantitative 18F-FDG PET/CT parameters;the Spearman method was used to analyze the correlation between the semi-quantitative parameters and clinicopathological features of Hodgkin’s lymphoma;receiver operating characteristic curve was used to analyze the predictive value of the semi-quantitative parameters for poor prognosis of Hodgkin’s lymphoma patients.Results:Mean SUVmax,MTV,and TLG of the 148 cases of Hodgkin’s lymphoma were 7.26±2.38,12.46±3.14 cm3,and 76.83±18.56 g,respectively.Significant variations in the Ann Arbor stage and clinical classification were observed with different levels of semi-quantitative parameters(P<0.05).The semi-quantitative parameters were not correlated with age and gender(P>0.05)but positively correlated with Ann Arbor stage and clinical classification(P<0.05).These parameters in the poor prognosis group were higher than those in the good prognosis group(P<0.05).The area under the curve(AUC)of SUVmax,MTV,and TLG in predicting the poor prognosis group was 0.881,0.875,and 0.838,with cut-off values of 7.264,12.898 cm3,and 74.580g,as well as specificity of 88.8%,84.0%,and 78.4%,and sensitivity of 87.0%,87.0%,and 78.3%,respectively;the AUC of the combined prediction was 0.986,with a specificity of 97.6%and sensitivity of 86.3%.Conclusion:The semi-quantitative 18F-FDG PET/CT parameters provide valuable insights for Hodgkin’s lymphoma prognosis assessment.展开更多
目的:前列腺癌的发病率逐年上升,精准诊疗可以帮助灰区前列腺癌患者减少不必要的前列腺穿刺。本研究旨在探讨18F-前列腺特异性膜抗原(prostate specific membrane antigen,PSMA)显像联合前列腺特异性抗原(prostate specific antigen,PSA...目的:前列腺癌的发病率逐年上升,精准诊疗可以帮助灰区前列腺癌患者减少不必要的前列腺穿刺。本研究旨在探讨18F-前列腺特异性膜抗原(prostate specific membrane antigen,PSMA)显像联合前列腺特异性抗原(prostate specific antigen,PSA)衍生指标对灰区前列腺癌的诊断价值。方法:回顾性纳入甘肃省人民医院107例因总前列腺特异性抗原(total prostate specific antigen,tPSA)为4~10μg/L(PSA灰区)的可疑性前列腺癌行18F-PSMA PET/CT显像的患者,根据病理学检查结果分为前列腺癌组和非前列腺癌组。患者均接受PSA检测、18F-PSMA及腹部超声检查,比较2组年龄、tPSA、游离PSA(free PSA,fPSA)、f/tPSA、前列腺体积、PSA密度(PSA density,PSAD)、最大标准化摄取值(maximum standardized uptake value,SUVmax)、分子成像前列腺特异性膜抗原(molecular imaging prostate specific membrane antigen,miPSMA)评分。采用多因素logistic回归分析诊断灰区前列腺癌的影响因素。构建受试者操作特征(receiver operating characteristic,ROC)曲线,评估PSAD、SUVmax单独及联合诊断灰区前列腺癌的效能。结果:前列腺癌组体积[42.00(34.00,58.00)cm3 vs 49.00(41.27,60.41)cm3]小于非前列腺癌组(Z=-2.376,P=0.017),PSAD[(0.18±0.06)μg/(L·cm3)vs(0.15±0.05)μg/(L·cm3)]和SUVmax[18.63(8.03,28.57)vs 9.33(5.90,13.52)]均高于非前列腺癌组(均P<0.05)。前列腺癌组miPSMA评分≥2的比例高于非前列腺癌组(χ^(2)=40.987,P<0.001)。PSAD(OR=22.154,95%CI 1.430~873.751,P=0.042)和SUVmax(OR=1.301,95%CI 1.034~1.678,P=0.009)是诊断灰区前列腺癌的独立影响因素。PSAD和SUVmax的最佳截断值分别为0.22μg/(L·cm3)和8.02,单独PSAD、SUVmax及PSAD和SUVmax联合诊断灰区前列腺癌的AUC分别为0.628(95%CI 0.530~0.720)、0.806(95%CI 0.718~0.876)、0.847(95%CI 0.765~0.910)(均P<0.05),灵敏度分别为41.03%、76.92%、74.36%,特异度分别为79.41%、89.71%、92.65%。结论:灰区前列腺癌患者PSAD、SUVmax增高,PSAD和SUVmax联合诊断灰区前列腺癌的价值较高。展开更多
目的:探讨中期正电子发射计算机断层显像(positron emission tomography-computed tomography,PET-CT)检查在复发性弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)中的作用。方法:回顾性分析2009年1月至2017年12月中山大学肿...目的:探讨中期正电子发射计算机断层显像(positron emission tomography-computed tomography,PET-CT)检查在复发性弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)中的作用。方法:回顾性分析2009年1月至2017年12月中山大学肿瘤防治中心收治的38例行中期PET-CT检查的复发性DLBCL患者临床病例资料,其中男性21例、女性17例。采用SPSS 20.0软件进行统计学分析。基线数据采用t、χ~2检验或Fisher精确检验进行比较。生存数据应用寿命表、Kaplan-Meier法、Cox回归等方法进行分析。结果:全组患者中,中期PET-CT评价为有效组[完全缓解(complete response,CR)+部分缓解(partial response,PR)]和无效组[疾病稳定(stable disease,SD)+疾病进展(progression of disease,PD)]患者分别为30例和8例。全组患者的中位总生存期(median overall survival,mOS)和无进展生存期(progression free survival,PFS)分别为77.69和8.44个月。有效组和无效组的mOS分别为77.93和16.37个月(P=0.017);有效组和无效组的中位PFS(median PFS,m PFS)分别为9.86个月和1.80个月(P=0.001)。单因素与多因素分析均显示,中期PET-CT评价为有效的患者获得更长的OS与PFS(P=0.006,P=0.001)。最大标准摄取值(maximum standard uptake value,SUVmax)≤11.05的患者获得更长的PFS和OS,ΔSUVmax>8和最大标准摄取值变化率(maximum standard uptake value%,ΔSUVmax%)>54.5%的患者仅表现出更长的PFS,OS则差异无统计学意义。结论:依照中期PET-CT结果分为有效组和无效组,按照临界值将SUVmax分组对复发性DLBCL患者的OS和PFS均有良好的预测作用,而按照临界值将ΔSUVmax、ΔSUVmax%分组能很好地预测复发性DLBCL患者的PFS。展开更多
基金Social Science Foundation of Xinjiang Uygur Autonomous Region(Project No.:19BGL110)State Key Laboratory of Pathogenesis,Prevention,Treatment of Central Asian High Incidence Diseases Fund(SKL-HIDCA-2021-28).
文摘Objective:To assess the prognostic value of maximum standardized uptake value(SUVmax),metabolic tumor volume(MTV),and total lesion glycolysis(TLG)determined by 18F-fluorodeoxyglucose positron emission tomography-computed tomography(18F-FDG PET/CT)imaging in Hodgkin’s lymphoma patients.Methods:A total of 148 Hodgkin’s lymphoma patients diagnosed with lymph node biopsy from October 2014 to October 2015 were retrospectively analyzed followed by categorizing into good(125 cases)and poor(23 cases)prognosis groups.The chi-squared test was used to analyze the clinicopathological characteristics of Hodgkin’s lymphoma patients with the semi-quantitative 18F-FDG PET/CT parameters;the Spearman method was used to analyze the correlation between the semi-quantitative parameters and clinicopathological features of Hodgkin’s lymphoma;receiver operating characteristic curve was used to analyze the predictive value of the semi-quantitative parameters for poor prognosis of Hodgkin’s lymphoma patients.Results:Mean SUVmax,MTV,and TLG of the 148 cases of Hodgkin’s lymphoma were 7.26±2.38,12.46±3.14 cm3,and 76.83±18.56 g,respectively.Significant variations in the Ann Arbor stage and clinical classification were observed with different levels of semi-quantitative parameters(P<0.05).The semi-quantitative parameters were not correlated with age and gender(P>0.05)but positively correlated with Ann Arbor stage and clinical classification(P<0.05).These parameters in the poor prognosis group were higher than those in the good prognosis group(P<0.05).The area under the curve(AUC)of SUVmax,MTV,and TLG in predicting the poor prognosis group was 0.881,0.875,and 0.838,with cut-off values of 7.264,12.898 cm3,and 74.580g,as well as specificity of 88.8%,84.0%,and 78.4%,and sensitivity of 87.0%,87.0%,and 78.3%,respectively;the AUC of the combined prediction was 0.986,with a specificity of 97.6%and sensitivity of 86.3%.Conclusion:The semi-quantitative 18F-FDG PET/CT parameters provide valuable insights for Hodgkin’s lymphoma prognosis assessment.