18F-FDGPET/CT、99mTc-MDP全身骨显像及其联合CT对肺癌骨转移的诊断价值比较

Journal of Medical Imaging(2017)

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Abstract
目的 探讨18 F-FDG PET/CT,99m Tc-MDP全身骨显像(BS)及BS联合CT这三种方法对肺癌骨转移诊断价值的比较.方法 回顾性分析2014年1月~2016年8月间行18 F-FDG PET/CT及BS检查并经病理证实的56例肺癌患者,将BS与18 F-FDG PET/CT同机CT图像进行联合诊断,以病理及临床随访为诊断依据,比较BS、BS联合CT及18 F-FDG PET/CT对肺癌骨转移的诊断价值.数据分析采用χ2检验,P﹤0.05为差异有统计学意义.结果 56例患者中骨转移28例共138处骨转移灶.基于患者,18 F-FDG PET/CT(96.4%及94.6%)与BS联合CT(89.3%及91.1%)诊断肺癌骨转移的特异性及准确性均高于BS(60.7%及75.0%)(均P<0.01与均P<0.05),18 F-FDG PET/CT(92.9%)与BS(89.3%)灵敏度差异无统计学意义.18 F-FDG PET/CT与BS联合CT之间差异均无统计学意义.基于骨转移灶,18 F-FDG PET/CT对骨转移灶的检出率(92.0%)高于BS联合CT(79.0%)(x2=9.473,P<0.01),BS联合CT高于BS(68.1%)(x2=4.191,P<0.05).18F-FDG PET/CT对CT无形态异常(骨髓转移)及溶骨性转移灶的检出率高于BS联合CT(x2=16.261及15.300,均P<0.01),BS联合CT对溶骨性转移灶的检出率高于BS(x2=6.711,P<0.01),BS对成骨性转移灶的检出率高于18F-FDG PET/CT(x2=8.892,P<0.01).18F-FDG PET/CT更容易发现位于胸椎、骶椎、骨盆及股骨的转移灶.结论 18 F-FDG PET/CT与BS联合CT诊断肺癌骨转移的价值优于BS,18 F-FDG PET/CT能更早发现BS联合CT无法检出的骨髓及小的溶骨性转移灶.
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Key words
Lung cancer,Bone metastases,Positron-emission tomography,Tomography,X-ray computed,Bone scintigraphy
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