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^(18)F-FDG-PET-CT在分化型甲状腺癌诊断、分期判定及预后判定中的价值探讨 被引量:4
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作者 王欢 何涛 李叔俊 《中国CT和MRI杂志》 2021年第6期52-54,共3页
目的探讨^(18)F-氟脱氧葡萄糖(^(18)F-FDG)-PET-CT在分化型甲状腺癌(DTC)诊断、分期判定及预后判定中的价值。方法病例来源于2016年2月至2017年2月收治的70例甲状腺良恶性疾病患者,均行全身^(18)F-FDG-PET-CT扫描检查,以术后组织病理学... 目的探讨^(18)F-氟脱氧葡萄糖(^(18)F-FDG)-PET-CT在分化型甲状腺癌(DTC)诊断、分期判定及预后判定中的价值。方法病例来源于2016年2月至2017年2月收治的70例甲状腺良恶性疾病患者,均行全身^(18)F-FDG-PET-CT扫描检查,以术后组织病理学结果为"金标准",评估^(18)F-FDG-PET-CT对DTC诊断、分期判定中的效能,并对确诊患者预后进行随访,分析^(18)F-FDG-PET-CT在DTC预后判定中的价值。结果 ^(18)F-FDG-PET-CT诊断DTC的灵敏度为73.08%,特异度为88.89%,准确度为77.14%,阳性预测值为95.00%,阴性预测值为53.33%,Kappa值为0.509,^(18)F-FDG-PET-CT诊断DTC分期的准确性为96.59%;术后随访期间^(131)I-WBS检查则发现,52例患者中有12例患者远处转移灶均呈阳性,但行^(18)F-FDG-PET-CT检查则呈阴性,有3例患者经医师观察、实验室检查均无明显变化,但有2例^(131)I-WBS检查为阴性而^(18)F-FDG-PET-CT检查为阳性,1例经^(131)I-WBS检查、^(18)F-FDG-PET-CT检查均为阴性。结论 ^(18)F-FDG-PET-CT在DTC鉴别诊断中的灵敏度、特异度和准确度不高,但对DTC分期判定和预后判定中有明确价值,在预后判定中结合^(131)I-WBS检查可提高对患者预后的评估效果。 展开更多
关键词 分化型甲状腺癌 ^(18)F-FDG-PET-CT 诊断 分期判定 预后判定
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Empirical study on mutual fund objective classification 被引量:1
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作者 金雪军 杨晓兰 《Journal of Zhejiang University Science》 CSCD 2004年第5期533-538,共6页
Mutual funds are usually classified on the basis of their objectives. If the activities of mutual funds are consistent with their stated objectives, investors may look at the latter as signals of their risks and incom... Mutual funds are usually classified on the basis of their objectives. If the activities of mutual funds are consistent with their stated objectives, investors may look at the latter as signals of their risks and incomes. This work analyzes mutual fund objective classification in China by statistical methods of distance analysis and discriminant analysis; and examines whether the stated investment objectives of mutual funds adequately represent their attributes to investors. That is, if mutual funds adhere to their stated objectives, attributes must be heterogeneous between investment objective groups and homogeneous within them. Our conclusion is to some degree, the group of optimized exponential funds is heterogeneous to other groups. As a whole, there exist no significant differences between different objective groups; and 50% of mutual funds are not consistent with their objective groups. 展开更多
关键词 Mutual funds classification Distance analysis Discriminant analysis
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