Quantification of the CARI breast imaging sensitivity by 2D/3D numerical time-domain ultrasound wave propagation
Quantification of the CARI breast imaging sensitivity by 2D/3D numerical time-domain ultrasound wave propagation
复制标题
通过 2D/3D 数值时域超声波传播量化 CARI 乳腺成像灵敏度
DOI：
10.1016/j.matcom.2004.01.014
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Å. Ødegård
中科院分区：
文献类型：
--
作者：
A. Bounaïm;S. Holm;Wen Chen;Å. Ødegård
为了挽救生命和降低成本，乳房成像系统必须在检测的早期阶段识别非常小的病变。临床振幅-速度重建成像(CARI)是一种新的乳腺成像技术，它是基于超声在乳腺组织中传播的速度和衰减的区分。实验证明，该方法比常规超声具有更高的灵敏度。这项工作涉及使用有限元时间域(FETD)超声波在乳腺组织中传播的CARI技术的数值研究。该数学方法由一个包含频率相关衰减的耗散波动方程组成，并补充了初始条件和边界条件。所使用的公式提供了空间特征的良好分辨率，因此，模拟有助于定量评估乳房小病变的检测。三维(3D)模拟与二维(2D)模型的结果一致，尽管当频率降低时。此外，研究还显示了FETD模拟CAI通道的有效性。
Breast imaging systems must recognize very small lesions at early stage of detection in order to save lives and reduce costs. The clinical amplitude–velocity reconstruction imaging (CARI), a recent breast imaging technique, is based on the differentiation of velocity and attenuation of ultrasound wave propagating through the breast tissues. Moreover, the method is experimentally verified to have higher sensitivity than conventional ultrasound. This work is concerned with the numerical study of the CARI technique using a finite element time domain (FETD) ultrasound wave propagation in the breast tissue. The mathematical method consists of a dissipative wave equation incorporating a frequency-dependent attenuation, and supplemented with initial and boundary conditions. The formulation used provides a good resolution of spatial features, and thus, simulations help in evaluating quantitatively the detection of small lesions in the breast. Three-dimensional (3D) simulations agree with the results obtained for the two-dimensional (2D) model although when the frequency is reduced. In addition, the study shows the effectiveness of the FETD to simulate the CARI modality.
影响因子：
2.4
作者：
Mast, TD;Hinkelman, LM;Waag, RC
通讯作者：
Waag, RC
影响因子：
2.4
作者：
Mast, TD;Hinkelman, LM;Waag, RC
通讯作者：
Waag, RC