SPECT/CT融合图像诊断胸骨后甲状腺肿的临床价值  

The clinical value of SPECT /CT fusion imaging in the diagnosis of substernal struma

作　　者：陈兰兰[1] 张国旭[1] 

机构地区：[1]沈阳军区总医院核医学科,辽宁沈阳110840

出　　处：《现代医学》2014年第1期76-78,共3页Modern Medical Journal

摘　　要：目的:探讨单光子发射型计算机断层仪(SPECT)/CT同机融合图像诊断胸骨后甲状腺肿的临床价值。方法:回顾性分析58例临床拟诊断为胸骨后甲状腺肿患者的临床资料,将这些患者术前CT扫描和SPECT/CT扫描结果与术后病理检查作对比,比较CT和SPECT/CT对胸骨后甲状腺肿诊断的准确度。结果:58例临床可疑胸骨后甲状腺肿患者中,CT诊断43例为胸骨后甲状腺肿,SPECT/CT同机融合图像诊断33例为胸骨后甲状腺肿。经术后病理证实35例被确诊为胸骨后甲状腺肿。CT和SPECT/CT诊断胸骨后甲状腺肿灵敏度、特异性、准确率分别为100%和94.3%、65.2%和100%、86.2%和96.6%,其误诊率、漏诊率、阳性结果预测值、阴性结果预测值分别为34.5%和0、0和5.7%、82.4%和100%、100%和92.0%。结论:SPECT/CT同机融合图像诊断胸骨后甲状腺肿特异性、准确率、阳性结果预测值均高于CT诊断,灵敏度、阴性结果预测值较CT略低。Objective： To evaluate the clinical value of the SPECT / CT fusion imaging in differential diagnosis of substernal struma. Methods： Retrospectively analysis 58 patients with suspected substernal struma ,who were found mediastinal goiter by chest X-ray. CT and SPECT / CT fusion imaging were performed respectively, the differences of the diagnostic coincidence were compared based on pathology performed after operations. Results： 45 in 58 patients were confirmed as substernal struma by CT; 35 patients diagnosed as substernal struma by SPECT/CT fusion imaging ,after the operation; 33 patients were determined as substernal struma.The accuracy rates of substernal struma diagnosis by CT and SPECT/CT were 100% and 94.3%,65.2% and 100%,86.2% and 96.6%,the positive prediction value and negative value of the results were 82.4% and 100%, 100% and 92.0%; Conclusion： By SPECT / CT fusion imaging, specificity, diagnostic accuracy rates and the positive prediction value of substernal struma diagnosis were higher than that by CT, the sensitivityand negative prediction value were lower.

关 键 词：胸骨后甲状腺肿 锝放射性同位素 SPECT CT同机融合图像 

分 类 号：R445.6[医药卫生—影像医学与核医学] R604[医药卫生—诊断学]