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Clinical utility of dual-energy CT used as an add-on to 18F FDG PET/CT in the preoperative staging of resectable NSCLC with suspected single osteolytic metastases.
Lung Cancer ( IF 5.3 ) Pub Date : 2019-11-04 , DOI: 10.1016/j.lungcan.2019.10.032
Haijun Wu 1 , Song Dong 2 , Xiuhui Li 3 , Lei Shi 4 , Dan Shao 5 , Qing Zhang 5 , Min Chen 6 , Yan Cao 7 , Minn Thant 7 , Xiaoyu Huang 1
Affiliation  

OBJECTIVE To determine the clinical value of 18F-FDG-PET/CT and dual-energy virtual noncalcium CT to detect and identify single osteolytic metastases (SOM) in participants with non-small cell lung cancer (NSCLC). MATERIALS AND METHODS Forty-two participants (mean age, 63.5 years ± 10.1; range, 41-81 years) with suspected SOM diagnosed by whole-body 18F-FDG-PET/CT underwent non-enhanced dual-energy CT. All images were visually and quantitatively evaluated by two nuclear medicine physicians (R1 and R2) and two radiologists (R3 and R4) independently. The results of visual and quantitative analysis of 18F-FDG-PET/CT and dual-energy CT were compared with pathological results. RESULTS In the visual analysis, the specificity and positive predictive value of dual-energy CT for reader 1 and reader 2 is larger than the corresponding figures of18F-FDG-PET/CT for reader 3 and reader 4 (94.1% each vs 82.4%/76.5%; 95.2%/95.0% vs 88.9%/86.2%). The sensitivity and negative predictive value of dual-energy CT is relatively lower than the number of 18F-FDG-PET/CT for readers (80.0%/76.0% vs 96.0%/100.0%; 76.2%/72.7% vs 93.3%/100.0%, respectively). ROI-based analysis of SUVmax on PET/CT images and CT numbers on VNCa images showed a significant difference between metastases and non-metastases (P < 0.001 each). CONCLUSIONS Pre-surgical evaluation by combination of whole-body 18F-FDG-PET/CT and dual-energy CT could improve the classification of SOM and may further guide the surgical decision-making in participants with NSCLC.

中文翻译:

双能CT作为18F FDG PET / CT的附加工具,在可疑NSCLC合并可疑单个溶骨性转移的术前分期中的临床应用。

目的确定18F-FDG-PET / CT和双能虚拟非钙CT在非小细胞肺癌(NSCLC)参与者中检测和鉴定单溶骨性转移瘤(SOM)的临床价值。材料与方法42例参与者(平均年龄63.5岁±10.1;范围41-81岁)通过全身18F-FDG-PET / CT诊断为疑似SOM,接受了非增强双能CT检查。所有图像均由两名核医学医师(R1和R2)和两名放射科医生(R3和R4)分别进行视觉和定量评估。将18F-FDG-PET / CT和双能CT的视觉和定量分析结果与病理结果进行了比较。结果在视觉分析中,阅读器1和阅读器2的双能CT的特异性和阳性预测值大于阅读器3和阅读器4的18F-FDG-PET / CT双能CT的相应数值(分别为94.1%比82.4%/ 76.5%; 95.2%/ 95.0%和88.9%/ 86.2%)。双能CT的敏感性和阴性预测值相对于18F-FDG-PET / CT读者而言相对较低(80.0%/ 76.0%vs 96.0%/ 100.0%; 76.2%/ 72.7%vs 93.3%/ 100.0 %, 分别)。基于ROI的PET / CT图像上的SUVmax分析和VNCa图像上的CT数目分析表明,转移与非转移之间存在显着差异(每个P <0.001)。结论全身18F-FDG-PET / CT和双能CT结合进行术前评估可改善SOM的分类,并可能进一步指导NSCLC参与者的外科手术决策。分别为1%和82.4%/ 76.5%;95.2%/ 95.0%与88.9%/ 86.2%)。双能CT的敏感性和阴性预测值相对于18F-FDG-PET / CT读者而言相对较低(80.0%/ 76.0%vs 96.0%/ 100.0%; 76.2%/ 72.7%vs 93.3%/ 100.0 %, 分别)。基于ROI的PET / CT图像上的SUVmax分析和VNCa图像上的CT数目分析表明,转移与非转移之间存在显着差异(每个P <0.001)。结论全身18F-FDG-PET / CT和双能CT结合进行术前评估可改善SOM的分类,并可能进一步指导NSCLC参与者的外科手术决策。分别为1%和82.4%/ 76.5%;95.2%/ 95.0%与88.9%/ 86.2%)。双能CT的敏感性和阴性预测值相对于18F-FDG-PET / CT读者而言相对较低(80.0%/ 76.0%vs 96.0%/ 100.0%; 76.2%/ 72.7%vs 93.3%/ 100.0 %, 分别)。基于ROI的PET / CT图像上的SUVmax分析和VNCa图像上的CT数目分析表明,转移与非转移之间存在显着差异(每个P <0.001)。结论全身18F-FDG-PET / CT和双能CT结合进行术前评估可改善SOM的分类,并可能进一步指导NSCLC参与者的外科手术决策。分别为7%和93.3%/ 100.0%)。基于ROI的PET / CT图像上的SUVmax分析和VNCa图像上的CT数目分析表明,转移与非转移之间存在显着差异(每个P <0.001)。结论全身18F-FDG-PET / CT和双能CT结合进行术前评估可改善SOM的分类,并可能进一步指导NSCLC参与者的外科手术决策。分别为7%和93.3%/ 100.0%)。基于ROI的PET / CT图像上的SUVmax分析和VNCa图像上的CT数目分析表明,转移与非转移之间存在显着差异(每个P <0.001)。结论全身18F-FDG-PET / CT和双能CT结合进行术前评估可改善SOM的分类,并可能进一步指导NSCLC参与者的外科手术决策。
更新日期:2019-11-04
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