机构地区:[1]内蒙古医科大学附属医院PET/CT中心,呼和浩特010050 [2]解放军总医院核医学科 [3]新疆维吾尔自治区医院核医学科 [4]哈尔滨医科大学附属肿瘤医院核医学科 [5]山东省肿瘤医院核医学科 [6]北京军区总医院核医学科 [7]福建省立医院核医学科 [8]广州医学院第一医院核医学科 [9]成都军区昆明总医院核医学科 [10]中国医科大学附属盛京医院核医学科 [11]中山大学附属肿瘤医院核医学科
出 处:《中华核医学与分子影像杂志》2013年第1期34-38,共5页Chinese Journal of Nuclear Medicine and Molecular Imaging
基 金:内蒙古自治区高等学校科学研究项目(NJZY07092)
摘 要:目的评价^18F—FLT联合^18F—FDG PET/CT显像对肺部恶性肿瘤患者纵隔淋巴结良恶性的诊断价值。方法回顾性分析2009年4月至2011年10月全国11个PET/CT中心^18F-FTJT与^18F—FDG PET/CT显像的患者资料,选择行肺部恶性肿瘤切除和纵隔淋巴结清扫、获得病理检查结果的患者共41例,其中男28例,女13例,年龄(56.1±12.2)岁。对^18F—FLT与^18F-FDGPET/CT淋巴结的显像结果分别进行视觉分析和半定量分析,采用,检验比较各方法的诊断效能。结果(1)41例患者手术共检出533枚淋巴结,经病理检查证实恶性192枚,良性341枚(炎性增生淋巴结或正常淋巴结);(2)以^18F-FDGSUV≥2.5和^18F—FLTSUV≥2.0为诊断恶性淋巴结的阈值^18F—FDG和^18F—FIJTPET/CT对纵隔淋巴结良恶性诊断的灵敏度、特异性、准确性、阳性预测值及阴性预测值分别为91.67%(176/192)、80.94%(276/341)、84.80%(452/533)、73.03%(176/241)、94.52%(276/292)和81.25%(156/192)、92.96%(317/341)、88.74%(473/533)、86.67%(156/180)、89.80%(317/353),两者灵敏度、特异性及阳性预测值差异均有统计学意义(,=8.897、21.722和11.495,均P〈0.05),准确性和阴性预测值差异均无统计学意义(X2=3.604和3.712,均P〉0.05);^18F—FDG联合^18F—FLT诊断纵隔淋巴结的灵敏度、特异性、准确性、阳性预测值及阴性预测值则分别提高至93.75%(180/192)、94.43%(322/341)、94.18%(502/533)、90.45%(180/199)、96.41%(322/334)。结论^18F-FDG诊断纵隔淋巴结良恶性的灵敏度高于^18F—FLT,但特异性及阳性预测值明显低于FLT,两者联合诊断可明显提高诊断准确性。Objective To evaluate the diagnostic value of ISF-FDG combined with 'SF-FLT PET/ CT imaging for benign and malignant mediastinal lymph nodes in patients with lung malignant tumors. Methods Forty-one patients from 11 PET/CT centers with lung malignant tumors underwent IS F-FLT and IS F-FDG PET/CT imaging from April 2009 to October 2011. The patients were made up of 28 males and 13females with a mean age (56.1± 12.2) y. The gold standard for diagnosis was histopathology. The results of lSF-FLT and IaF-FDG PET/CT images were analyzed by visual and semi-quantitative analysis. X2 test was used to analyze diagnosis efficacy. Results ( 1 ) A total of 533 mediastinal lymph nodes were obtained and histopathologically confirmed. There were 192 malignant lymph nodes and 341 benign lymph nodes ( either inflammatory hyperplasia or normal lymph nodes). (2) When ISF-FDG SUV i〉2.5 and lSF-FLT SUV t〉 2. 0 were used as the threshold for the malignant lesion, the sensitivity, specificity, accuracy, positive predictive value and negative predictive value of lSF-FDG and lSF-FLT were 91.67% (176/192) vs 81.25% (156/192), 80.94% (276/341) vs 92.96% ( 317/341 ), 84.80% (452/533) vs 88.74% (473/533), 73.03% ( 176/241 ) vs 86.67% ( 156/180), 94.52% (276/292) vs 89.80% (317/353), respectively. There were significant differences in sensitivity, specificity and positive predictive value (X2 = 8. 897, 21. 722, 11. 495, all P 〈0.05), while there were no significant differences in accuracy and negative predictive value (X2 = 3. 604, 3. 712, both P 〉 0.05 ). The combination of dual-tracer PET/CT improved the sensitivity, specificity, accuracy, positive predictive value and negative predictive value up to 93.75% (180/192), 94.43% (322/341), 94.18% (502/533), 90.45% (180/199) and 96.41% (322/334). Conclusions ~s F-FDG PET had a higher sensitivity in diagnosis of benign and malignant mediastinal lymph nodes than is F-FLT, but 18 F-FLT had a higher specifi
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...