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基于截面投影Otsu法的颈动脉内中膜超声图像分割 |
王立芝,范朝冬 |
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(湖南大学医院;湘潭大学信息工程学院) |
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摘要: |
颈动脉内中膜厚度与多种心脑血管疾病密切相关,是预测该类心脑血管疾病的重要指标。对此,本文将基于截面投影Otsu法引入颈动脉内中膜分割,提出了一种高质量的颈动脉内中膜分割方法,该方法首先将截面投影Otsu法扩展到多阈值情况,以便处理颈动脉图像的多目标性;然后,采用微粒群算法搜索最优阈值,以提高算法效率。临床数据测试结果表明:该方法在抗噪性和时效性方面具有明显优势,可为心血管疾病预防、诊断、治疗及计算机辅助诊断提供重要参考。 |
关键词: 计算机辅助诊断 超声图像 颈动脉 内中膜 Otsu法 |
DOI: |
投稿时间:2016-07-13修订日期:2016-09-25 |
基金项目:湖南省自然科学基金项目(2016JJ3125) |
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Intima-media segmentation of carotid artery in ultrasound images based on section projection histogram |
Li-zhi Wang,Chao-dong Fan |
(Hunan University hospital,Changsha) |
Abstract: |
Carotid artery intima-media thickness and cardiovascular-cerebrovascular diseases are closely related, is an important index for the prediction of cardiovascular and cerebrovascular diseases. In this regard, the projection section based Otsu method was introduced to the carotid artery intima-media segmentation, and a high quality of the carotid artery intima-media segmentation methods are proposed. In this method, the Otsu method is extended to multi threshold in order to deal with the multi-objective of the image of the carotid artery. Then, the particle swarm algorithm is used to search the optimal threshold to improve the efficiency of the algorithm. Clinical data test results show that the method has obvious advantages in anti noise and aging, and it can provide important reference for prevention, diagnosis, treatment and computer aided diagnosis of cardiovascular diseases. |
Key words: computer aided diagnosis ultrasound image carotid artery Intima-media Otsu |
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