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孤立性肺结节的临床评估 被引量:3

Clinical evaluation of the solitary pulmonary nodule
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摘要 目的通过单因素与多因素Logistic回归分析筛选出与孤立性肺结节(SPN)恶性概率相关因素,建立恶性概率临床估算模型,并评价其在SPN良恶性鉴别中的作用。方法回顾性分析182例SPN患者(A组)的临床资料,记录其性别、年龄、吸烟史、戒烟史、恶性肿瘤病史、癌胚抗原(CEA)、结节部位、最大直径、密度、空泡征、空洞征、空气支气管征、非良性钙化、分叶征、棘突征、毛刺、胸膜凹陷征、血管集柬征、增强峰值、计算机断层扫描(PET)最大标准化摄取值(SUV-)、病理共21项临床资料,通过单因素及多因素Logistic回归分析筛选出恶性SPN的独立危险因素,建立恶性概率临床估算模型。另选取确诊的SPN患者45例作为B组,验证该模型的预测价值。结果单因素分析结果显示性别、年龄、非下叶分布、最大直径、实性、部分实性、空气支气管征、非良性钙化、分叶征、毛刺征、胸膜凹陷征、CT增强值≥15HU、PET检查SUVmax≥2.5在SPN良恶性中的差异有统计学意义(P〈0.05)。多因素Logistic回归分析结果进一步提示:女性、年龄、分叶征、短毛刺及胸膜凹陷征是恶性SPN的独立危险因素,而实性则提示良性可能。建立恶性概率临床估算模型:P=ex/(1+ex),x=-3.399+1.382X性别+0.056Z年龄+1.377X分叶征+1.498Z短毛刺-2.096X实性+1.005×胸膜凹陷征,其中e为自然对数。选取P=0.663为截点,利用B组数据验证该评估模型,其灵敏度为86.5%,特异度为62.5%,阳性预测值为91.4%,阴性预测值为50.O%,准确度为82.2%。结论对于SPN,女性、年龄、分叶征、短毛刺及胸膜凹陷征是恶性的独立危险因素,而实性则是独立保护因素,通过Logistic回归建立的恶性概率临床估算模型准确度较高,有较好的临床应用价值。 Objective To screen the clinical factors affecting the malignant probability of solitary pulmonary nodule (SPN) with univariate and multivariate Logistic regression analysis,and to establish a clinical prediction model, evaluate its test effectiveness in the differential diagnosis in SPN. Methods A retrospective cohort study included 182 patients with diagnosis of SPN (group A). Chnical data included
出处 《中国医师进修杂志》 2013年第7期17-21,共5页 Chinese Journal of Postgraduates of Medicine
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参考文献16

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二级参考文献66

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