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宝石能谱CT联合肿瘤标志物对孤立性肺结节鉴别诊断的研究 被引量:7

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摘要 目的:探讨宝石能谱CT联合肿瘤标志物诊断肺结节性质的应用价值。方法:选择我院2016年6月至2018年12月行胸部CT扫描发现存在孤立性肺结节的147例患者,采用GE宝石能谱CT对其胸部依次进行动、静脉期扫描,利用AW4.4图像后处理工作站对所有能量扫描数据进行预处理,选择GSI Viewer软件对所有患者的CT能谱成像定量参数进行分析,CEA、CYFRA21-1、NSE均采用电化学发光法,并对所得数据进行统计学分析。结果:恶性结节在动、静脉期40~140 keV下CT值都高于结核球(P<0.01);恶性结节在动脉期40~60 keV、静脉期40~90 keV下的CT值均高于良性肿瘤(P<0.05或P<0.01)。恶性结节静脉期40~70 keV、70~100 keV、100~140 keV 3段斜率均大于良性肿瘤(P<0.05);恶性结节动脉期70~100 keV及静脉期40~70 keV、70~100 keV、100~140 keV 3段斜率均大于结核球(P<0.05或P<0.01)。结论:不同keV下CT值,能谱曲线40~70 keV、70~100 keV、100~140 keV 3段斜率有助于孤立性肺结节的鉴别,能量衰减曲线斜率结合肿瘤标志物可作为鉴别孤立性肺结节良恶性的一种新手段。
出处 《现代临床医学》 2020年第3期185-187,共3页 Journal of Modern Clinical Medicine
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