肺通气/灌注断层显像和血浆D-二聚体检测对肺栓塞低度可能性患者诊断价值的对比研究  被引量:8

Comparative study of ventilation/perfusion SPECT and blood D-dimer test for diagnosis of low probability pulmonary embolism

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作  者:李环[1] 郑玉民[1] 何嘉[2] 王蒨[3] 戴皓洁[4] 王铁[5] 李眉[4] 孟晶晶[3] 颜珏[1] 

机构地区:[1]中日友好医院核医学科,北京100029 [2]中国医学科学院阜外心血管病医院核医学科 [3]首都医科大学附属北京安贞医院核医学科 [4]首都医科大学附属北京同仁医院核医学科 [5]首都医科大学附属北京朝阳医院核医学科

出  处:《中华核医学与分子影像杂志》2014年第6期449-452,共4页Chinese Journal of Nuclear Medicine and Molecular Imaging

基  金:北京市科技计划首都临床特色应用研究基金(D101100050010034)

摘  要:目的探讨V/Q断层显像对于Wells评分〈2的PE低度可能性患者的诊断价值,并与血浆D-二聚体检测进行对比。方法前瞻性研究2010年1月至2013年8月北京4家三级甲等医疗机构收治的PE临床低度可能性(Wells评分〈2)患者95例,患者均在1d内完成V/Q断层显像和血浆D-二聚体检测。V/Q断层显像依据欧洲核医学会2009年公布的指南推荐标准,将结果归为3类:PE、非PE和不确定诊断。全部患者至少随访6个月。最终以综合分析各影像学检查、实验室检查、临床表现和6个月的随访结果来判定为确诊或排除PE。分别计算V/Q断层显像和血浆D-二聚体检测对PE的诊断效能并以∥检验进行比较。结果95例患者中,最终确诊PE31例,排除64例。V/Q断层显像的诊断灵敏度为93.3%(28/30;95% CI:84.4%-100%),特异性为91.9%(57/62;95%CI:85.1%∽98.7%),准确性为92.4%(85/92;95%CI:87.O%∽97.8%),阳性预测值为84.8%(28/33;95%CI:83.6%-86.0%),阴性预测值为96.6%(57/59;95%CI:92.0%∽100%);D-二聚体阳性作为PE诊断依据的灵敏度为36.7%(11/30;95%C1:19.5%∽53.9%),特异性为79.0%(49/62;95%CI:68.9%∽89.1%),准确性为65.2%(60/92;95%CI:55.5%∽74.9%),阳性预测值为45.8%(11/24;95%CI:25.7%-65.7%),阴性预测值为72.1%(49/68;95%CI:61.4%∽82-8%)。V/Q断层显像诊断的灵敏度(χ2=21.2)、特异性(χ2=13.8)、准确性(χ2=20.3)、阳性预测值(χ2=9.8)和阴性预测值(疋。4.2)均明显高于D-二聚体检测(均P〈0.05)。结论V/Q断层显像对于Wells评分〈2的PE疑似患者具有良好的诊断效能,优于血浆D-二聚体检测。Objective To compare the diagnostic efficiency of V/Q SPECT and blood D-dimer test in patients with low probability ( Wells score 〈2) of PE. Methods From January 2010 to August 2013, 95 patients with low probability of PE were recruited from four hospitals in Beijing. The patients underwent V/Q SPECT and blood D-dimer test on the same day. The European Association of Nuclear Medicine guidelines (2009) was used as the evaluation criteria for V/Q SPECT imaging. The results of V/Q SPECT were classi- fied as definite PE, suspected PE and no PE. All patients were followed clinically for at least six months. Final diagnosis was decided based on the results of multiple imaging modalities ,laboratory tests, clinical data and follow-up. The diagnostic efficiency of V/Q SPECT was calculated and compared with those of blood D- dimer test.X2 test was used for data analysis. Results PE was confirmed in 31 patients, and excluded in 64 patients. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of V/Q SPECT were 93.3% ( 28/30 ; 95 % CI: 84.4% - 100% ), 91.9% ( 57/62 ; 95% C1: 85.1% - 98.7% ), 92.4% (85/92;95% CI:87.0%-97.8%), 84.8%(28/33; 95% CI:83.6%-86.0%) , 96.6%(57/59;95% CI: 92. 0%-100%) respectively, while those of blood D-dimer test were 36.7% (11/30;95% CI: 19.5%- 53.9%), 79.0%(49/62; 95% CI:68.9%-89.1%), 65.2% (60/92;95% CI:55.5%-74.9%), 45.8% (11/24;95% CI:25.7%-65.7%), 72.1%(49/68;95% CI:61.4%-82.8%) respectively. The sensitivity (χ2 = 21.2), specificity (χ2 = 13.8), accuracy (χ2 = 20.3), positive predictive value (χ2 = 9.8) and nega- tive predictive value (X2 = 4.2) of V/Q SPECT were significantly higher than those of blood D-dimer test (all P〈0.05). Conclusion The diagnostic efficiency of V/Q SPECT imaging may superior to blood D-dimer test in the diagnosis of low probability PE.

关 键 词:肺栓塞 放射性核素显像 体层摄影术 发射型计算机 单光子  纤维蛋白纤维蛋白原降解物 MAA 

分 类 号:R563.5[医药卫生—呼吸系统] R817.4[医药卫生—内科学]

 

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