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网络出版:2016-05-04,
纸质出版:2016-05-04
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于丽娟, 孙艳芹, 徐继有. 18F-脱氧葡萄糖PET/CT及血清糖类抗原125检测在卵巢癌术后复发和转移诊断中的价值[J]. 肿瘤影像学, 2016,25(1):50-55.
于丽娟,孙艳芹,徐继有. 18F-脱氧葡萄糖PET/CT及血清糖类抗原125检测在卵巢癌术后复发和转移诊断中的价值[J]. 肿瘤影像学, 2016, 25(1): 50-55
目的:
探讨18F-脱氧葡萄糖(
18
F-fluorodeoxyglucose,
18
F-FDG)PET/CT及血清糖类抗原125(carbohydrate antigen 125,CA125)诊断卵巢癌术后复发及转移的价值。
方法:
收集101例术后行
18
F-FDG PET/CT检查的卵巢癌患者资料,所有患者均施行肿瘤细胞减灭术及血清CA125检测(与PET/CT检查间隔时间7 d)。复发及转移的判断以二次手术病理或穿刺病理为金标准;没有病理结果者以临床随访结果为标准(最短随访时间>6个月)。应用SPSS 18.0软件进行分析,
P
<0.05为差异有统计学意义。
结果:
18
F-FDG PET/CT和血清CA125对卵巢癌术后病变定性诊断的灵敏度、特异度、阳性预测值、阴性预测值、准确率分别为94.1%、97.1%,81.8%、12.1%,91.4%、69.5%,87.1%、66.7%,90.1%、69.3%。以最大标准化摄取值(maximum standardized uptake value,SUV
max
)2.5、SUV
max
1.3为阈值,对卵巢癌术后复发及转移诊断的灵敏度、特异度、阳性预测值、阴性预测值和准确率分别为94.1%、95.6%,81.8%、84.8%,91.4%、92.9%,87.1%、90.3%,90.1%、92.1%。以CA12535 U/mL、CA12565 U/mL为阈值,对卵巢癌术后复发及转移诊断的灵敏度、特异度、阳性预测值、阴性预测值和诊断准确率分别为97.1%、88.2%,12.1%、72.7%,69.5%、87.0%,66.7%、75.0%,69.3%、83.2%。SUV
max
与血清CA125值之间具有线性关系(
R
2
=0.595)。
结论:
对于卵巢癌术后复发和转移的诊断,
18
F-FDG PET/CT的特异度和准确率高于CA125(35 U/mL)。
Objective:
To evaluate the values of
18
F-fluorodeoxyglucose (
18
F-FDG) PET/CT a
nd serum carbohydrate antigen 125 (CA125) in the diagnosis of recurrent and metastatic ovarian cancers.
Methods:
A total of 101 consecutive patients with ovarian cancer who underwent
18
F-FDG PET/CT after cytoreductive surgery were chosen. The serum CA125 level was detected within one week before or after PET/CT examination. The gold standard of recurrence or metastasis was based on pathological results acquired from reoperation or biopsy. For the patients without pathological results
the long-term follow-up (at least 6 months) results were set as standard. All the data analyses were carried out by software package SPSS 18.0
and
P
0.05 was established as the threshold for significance.
Results:
The sensitivity
specificity
positive predicted value (PPV)
negative predicted value (NPV) and accuracyof PET/CT and serum CA125 for recurrence and metastasis was 94.1%
81.8%
91.4%
87.1%
90.1%
and 97.1%
12.1%
69.5%
66.7 %
69.3%
respectively. When the maximum standardized uptake value (SUV
max
) thresholds were set as 2.5 and 1.3
the corresponding diagnostic values were 94.1%
81.8%
91.4%
87.1%
90.1%
and 95.6%
84.8%
92.9%
90.3%
92.1%
respectively. When the thresholds were CA125 35 U/ml and CA125 65 U/ml
the corresponding values were 97.1%
12.1%
69.5%
66.7%
69.3%
and 88.2%
72.7%
87.0%
75.0%
83.2%
respectively. There was a linear relationship between SUV
max
and serum CA125 value (
R
2
= 0.595).
Conclusion:
Compared to serum CA125
18
F-FDG PET/CT is a useful technique to detect recurrent and metastatic ovarian cancer in terms of specificity and accuracy.
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