Monitoring and guidance of HIFU beams with dual-mode ultrasound arrays.
Monitoring and guidance of HIFU beams with dual-mode ultrasound arrays.
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使用双模超声阵列监测和引导 HIFU 波束。
DOI：
10.1109/iembs.2009.5334677
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Ebbini,EmadS
中科院分区：
文献类型：
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作者：
Ballard,JohnR;Casper,AndrewJ;Ebbini,EmadS
我们目前的实验结果说明了独特的优势，双模式阵列（DMUA）系统在监测和指导高强度聚焦超声（HIFU）病变的形成。DMUA在图像引导手术中提供了独特的范例;其中使用相同的治疗换能器获得的图像提供反馈用于：1）在存在强散射物体（例如肋骨）的情况下重新聚焦阵列，2）HIFU焦点的预期位置处的温度变化，以及3）响应于治疗HIFU的组织的回声性的变化。这些形式的反馈已经在体外被证明，在准备的实时系统的设计和实施的成像和治疗与DMUAs。结果清楚地表明，DMUA图像反馈在空间上是准确的，并提供足够的空间和对比度分辨率，用于识别高对比度对象，如肋骨和显着的血管在HIFU束的路径。
We present experimental results illustrating the unique advantages of dual-mode array (DMUA) systems in monitoring and guidance of high intensity focused ultrasound (HIFU) lesion formation. DMUAs offer a unique paradigm in image-guided surgery; one in which images obtained using the same therapeutic transducer provide feedback for: 1) refocusing the array in the presence of strongly scattering objects, e.g. the ribs, 2) temperature change at the intended location of the HIFU focus, and 3) changes in the echogenicity of the tissue in response to therapeutic HIFU. These forms of feedback have been demonstrated in vitro in preparation for the design and implementation of a real-time system for imaging and therapy with DMUAs. The results clearly demonstrate that DMUA image feedback is spatially accurate and provide sufficient spatial and contrast resolution for identification of high contrast objects like the ribs and significant blood vessels in the path of the HIFU beam.