超声治疗中声全息多控制点力场绘制算法研究

Tomoya Shinato, T. Shiraishi
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引用次数: 0

摘要

超声治疗的优势在于它对身体是一种非侵入性治疗。低强度脉冲超声有助于骨折愈合。我们专注于相控阵换能器(PATs)来呈现力场,并实现医疗设备的改进以增强这种治疗。这既可以渲染任意声场,又可以通过控制每个换能器的输出和相位来快速改变它。有一些控制pat的算法;然而,这些算法的有效性在稀疏控制点处受到限制。在本研究中,我们提出了一种新的算法来控制多控制点和近控制点的pat。我们将所提出的算法与先前的算法进行比较,并评估避免目标区域外的负面影响。研究结果表明,该算法具有良好的重建性能和较低的计算成本,并且可以使声场足以防止对身体的负面影响。
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An Algorithm for Rendering Force Fields at Many and Close Control Points Using Acoustic Holography for Ultrasound Therapy
Ultrasound therapy is advantageous because it is a noninvasive treatment for the body. Low-intensity pulsed ultrasound can aid fracture healing. We focus on phased array transducers (PATs) to render force fields and realize the improvement in medical equipment to enhance this therapy. This can both render an arbitrary acoustic field and quickly change it by controlling the output and phase of each transducer. There are some algorithms for controlling PATs; however, the effectiveness of these algorithms is limited at sparse control points. We propose a novel algorithm to control PATs at many and close control points in this research. We compare the proposed algorithm with previous ones and assess the avoidance of negative effects outside the target area. The findings show that the proposed algorithm achieves both excellent reconstruction performance and low computational cost, and it can render an acoustic field sufficient to prevent negative effects on the body.
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