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Abstract:
PURPOSE:To identify computed tomography (CT) features of epidermal growth factor receptor (EGFR) mutation-positive lung adenocarcinoma in Canadian population and whether imaging-based surrogate markers of EGFR mutation in our population were similar to those found in the Asian population. MATERIALS AND METHODS:Pretreatment CT scans of 223 patients with adenocarcinoma of the lung (112 with EGFR mutation and 111 without mutation) were retrospectively assessed for 20 specific CT features by 2 radiologists, who were blinded to the status of EGFR mutation. Univariate and multivariate logistic regression analyses as well as areas under the receiver operating characteristic curve were performed to discriminate characteristics of EGFR-activating mutation features. RESULTS:Epidermal growth factor receptor mutation-positive adenocarcinomas were more frequently found in female (P < .03), less than 20 pack-year smoking history (P < .001), smaller tumor (P < .01), spiculated margins (P < .05), without centrilobular emphysema (P < .001), and without lymphadenopathy (P < .05), similarly to the Asian population. Multivariate logistic regression analyses of combined clinical and radiological features identified less than 20 pack-year smoking history, smaller tumor diameter, fine or coarse spiculations, noncentral location of the tumor, and lack of centrilobular emphysema and pleural attachment as the strongest independent prognostic factors for the presence of an EGFR mutation. These combined features improved prognostic ability area under the curve to 0.879, compared to 0.788 for clinical features only. CONCLUSION:Several CT findings may help predict the presence of an activating mutation in EGFR in lung adenocarcinomas in our Canadian population. Combining clinical and radiological features improves prognostic ability to determine the EGFR mutation status compared to clinical features alone.
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最新影响因子:1.726 | 期刊ISSN:0846-5371 | CiteScore: |
出版周期:Bimonthly | 是否OA:YES | 出版年份:1986 |
期刊官方网址:http://www.carjonline.org/
期刊投稿地址:http://ees.elsevier.com/carj/default.asp?acw=&utt=fd733ae0d0eb551033916d6857a37ce3712565f
自引率:8.20% | 研究方向:医学-核医学 |
出版地区:CANADA |
SCI期刊coverage:Science Citation Index Expanded(科学引文索引扩展)
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The peer-reviewed journal of the Canadian Association of Radiologists.
加拿大放射学家协会的同行评审期刊。
大类(学科) | 小类(学科) | 学科排名 |
医学 |
RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING(放射学,核医学和医学成像) 4区 |
113/129 |
年度总发文量 | 年度论文发表量 | 年度综述发表量 |
58 | 54 | 4 |
引文计数(2018)
文献(2015-2017)
次引用
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审稿时间: 4个月内
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研究方向:-
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研究方向:医学-传染病学
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