Segmentation method of intravascular ultrasound images of human coronary arteries
Segmentation method of intravascular ultrasound images of human coronary arteries
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DOI：
10.1016/j.compmedimag.2013.09.004
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发表时间：
2014-03-01
影响因子：
5.7
通讯作者：
Cloutier, Guy
中科院分区：
文献类型：
--
作者：
Destrempes, Francois;Cardinal, Marie-Helene Roy;Cloutier, Guy
本研究的目的是证明在冠状动脉血管内超声（IVUS）成像的背景下，2D分割快速行进方法（FMM）的可行性。原始FMM速度函数结合了基于梯度的轮廓信息和区域信息，即血管结构的灰度概率密度函数，其考虑了在40 MHz下采集的IVUS图像中组织和管腔外观的可变性。38个体内IVUS序列的实验结果显示，检测到的血管壁边界和手动验证轮廓之间的平均点对点距离低于0.11 mm，Hausdorff距离低于0.33 mm，如在3207张图像上评估的。所提出的方法被证明是强大的，在考虑到各种伪影的超声图像：部分阴影由于钙夹杂物内的斑块，侧支相邻的主动脉段，支架的存在下，注射造影剂或夹层，作为测试209图像呈现这样的伪影。(C)2013爱思唯尔有限公司保留所有权利。
The goal of this study was to show the feasibility of a 2D segmentation fast-marching method (FMM) in the context of intravascular ultrasound (IVUS) imaging of coronary arteries. The original FMM speed function combines gradient-based contour information and region information, that is the gray level probability density functions of the vessel structures, that takes into account the variability in appearance of the tissues and the lumen in IVUS images acquired at 40 MHz. Experimental results on 38 in vivo IVUS sequences yielded mean point-to-point distances between detected vessel wall boundaries and manual validation contours below 0.11 mm, and Hausdorff distances below 0.33 mm, as evaluated on 3207 images. The proposed method proved to be robust in taking into account various artifacts in ultrasound images: partial shadowing due to calcium inclusions within the plaque, side branches adjacent to the main artery to segment, the presence of a stent, injection of contrast agent or dissection, as tested on 209 images presenting such artifacts. (C) 2013 Elsevier Ltd. All rights reserved.