Chest:建立风险预测模型以估算考虑活检肺结节的恶性概率

2019-04-02 xiangting MedSci原创

这项研究开发了8个模型,用于帮助表征被临床医生认为高危推荐活检的PNs。

肺结节(PN)评估的主要目标是加快恶性结节的治疗,并尽量减少良性结节的手术。可用的经验证风险预测模型在与其开发人群类似的人群中应用时才最准确。这项研究目标是开发一种恶性肿瘤风险预测模型,以估算被认为高危推荐进行活检PN的恶性概率。

这项回顾性分析包括一组训练数据集和验证数据集,数据集患者有基于克利夫兰诊所肺活检或切除的恶性或良性组织病理学诊断。收集与肺癌相关的影像学和临床特征。使用单因素logistic回归确定潜在预测因子。使用降序选择和多因素logistic回归构建了几个模型,每个模型的可用数据不同(例如PET扫描、随访CT扫描)。

使用200个恶性结节和101个良性结节生成和内部验证了8个模型。最终模型中使用的肺癌预测因子包括年龄大、吸烟史、上叶位置、实性和不规则/针状结节边缘、存在肺气肿、FDG-PET亲合力和除肺以外的其他癌症病史。模型的C指数范围为0.75-0.81。这些模型比Mayo模型更准确(其中4个模型p<0.05),每个模型都有很好的校准。在用于验证的独立样本中,模型的C指数为0.67,而Mayo模型的指数为0.63。每个概率十分位中恶性与良性结节比率比Mayo模型更能影响临床决策。

这项研究开发了8个模型,用于帮助表征被临床医生认为高危推荐活检的PNs。这些模型可以帮助指导临床医生的决策,并用作患者沟通的资源。

原始出处:

Michal Reid. Development of a risk prediction model to estimate the probability of malignancy in pulmonary nodules being considered for biopsy. Chest. 30 March 2019.

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    2019-07-24 Smile2680
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    2019-04-04 衣带渐宽

    学习

    0

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    2019-04-02 CHANGE

    梅斯里提供了很多疾病的模型计算公式,赞一个!

    0

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《肺结节诊治中国专家共识(2018版)》解读

根据我国肺癌发病特点及危险因素,中华医学会呼吸病学分会肺癌学组和中国肺癌联盟讨论制定《肺结节诊治中国专家共识》(简称《共识》),旨在建立科学和规范的肺结节评估随访策略,提高肺结节良、恶性质鉴别的精准水平,使肺癌患者尽早获得治疗,避免良性肺结节患者过度治疗。本文从6个方面对2018版《共识》进行解读。

Sci Rep:CT扫描图像检测肺结节的有效可靠框架

实证结果表明该技术对于降低假阳性率非常有效。敏感率高达令人惊叹的97.45%。

Thorax:NELSON CT肺癌筛查研究随机轮次中持续存在的新结节

LDCT肺癌筛查中超过一半的新发低中危实性结节会消退。随访中,与体积阈值相结合的生长评估可被用于风险分层。

Thorax:使用NLST数据对Brock模型进行外部验证和重新校准,以预测肺结节中癌症的概率

虽然Brock模型在NLST数据集上验证时达到了高AUC,但该模型得益于更新和重新校准。

Thorax:从低剂量CT扫描和吸烟因素预测肺癌的可行性

LCCM具有作为肺癌预测因子的前途,因为它相对现有模型有显著的改善。

1例合并原发性巨球蛋白血症患者胸腔镜下右上肺结节楔形切除术的麻醉处理

原发性巨球蛋白血症(Waldenstrom macroglobulinemi,WM)是一种源于能分化为成熟浆细胞的B淋巴细胞的恶性增生性疾病,主要表现为骨髓中有浆细胞样淋巴细胞浸润,并合成单克隆IgM,占所有血液恶性肿瘤的2%。临床表现特征是贫血、出血倾向及高黏滞血症。由于本病较为罕见,很少有其麻醉管理的报道,现有1例WM患者胸腔镜下行右上肺结节楔形切除术,报告如下。