Evaluation of carotid plaque echogenicity based on the integral of the cumulative probability distribution using gray-scale ultrasound images.
文献类型：期刊论文
| 作者 | Huang, Xiaowei ; Zhang, Yanling ; Meng, Long ; Abbott, Derek ; Qian, Ming ; Wong, Kelvin K. L. ; Zheng, Rongqing ; Zheng, Hairong ; Niu, Lili |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Carotid plaque echogenicity is associated with the risk of cardiovascular events. Gray-scale median (GSM) of the ultrasound image of carotid plaques has been widely used as an objective method for evaluation of plaque echogenicity in patients with atherosclerosis. We proposed a computer-aided method to evaluate plaque echogenicity and compared its efficiency with GSM. Methods One hundred and twenty-five carotid plaques (43 echo-rich, 35 intermediate, 47 echolucent) were collected from 72 patients in this study. The cumulative probability distribution curves were obtained based on statistics of the pixels in the gray-level images of plaques. The area under the cumulative probability distribution curve (AUCPDC) was calculated as its integral value to evaluate plaque echogenicity. Results The classification accuracy for three types of plaques is 78.4% (kappa value, kappa = 0.673), when the AUCPDC is used for classifier training, whereas GSM is 64.8% (kappa = 0.460). The receiver operating characteristic curves were produced to test the effectiveness of AUCPDC and GSM for the identification of echolucent plaques. The area under the curve (AUC) was 0.817 when AUCPDC was used for training the classifier, which is higher than that achieved using GSM (AUC = 0.746). Compared with GSM, the AUCPDC showed a borderline association with coronary heart disease (Spearman r = 0.234, p = 0.050). Conclusions Our experimental results suggest that AUCPDC analysis is a promising method for evaluation of plaque echogenicity and predicting cardiovascular events in patients with plaques. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/12097]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | PLOS ONE |
| 推荐引用方式 GB/T 7714 | Huang, Xiaowei , Zhang, Yanling , Meng, Long ,et al. Evaluation of carotid plaque echogenicity based on the integral of the cumulative probability distribution using gray-scale ultrasound images.[J]. PLOS ONE,2017. |
| APA | Huang, Xiaowei ., Zhang, Yanling ., Meng, Long ., Abbott, Derek ., Qian, Ming .,...& Niu, Lili.(2017).Evaluation of carotid plaque echogenicity based on the integral of the cumulative probability distribution using gray-scale ultrasound images..PLOS ONE. |
| MLA | Huang, Xiaowei ,et al."Evaluation of carotid plaque echogenicity based on the integral of the cumulative probability distribution using gray-scale ultrasound images.".PLOS ONE (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。