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首页> 外文期刊>Materials Research Innovations >Design And Evaluation Of A3 x 21 Element 1.75 Dimensional Tapered Ultra-Sound Phased Array For The Treatment Of Prostate Disease
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Design And Evaluation Of A3 x 21 Element 1.75 Dimensional Tapered Ultra-Sound Phased Array For The Treatment Of Prostate Disease

机译：用于治疗前列腺疾病的A3 x 21元素1.75尺寸锥形锥形相控阵的设计与评估

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摘要

This paper describes the design, construction, and evaluation of a 1.75 dimensional (1.75-D) tapered ultrasound phased array to be used in the treatment of benign prostatic hyperplasia and prostate cancer. The array was designed to be able to focus and steer in a three dimensional volume with a maximum steering angle of +- 13.5° in the transverse direction and a maximum depth of penetration of 11 cm, which allows the treatment of large prostates. A piezoelectric ceramic (PZT-8) at a frequency of 1.2 MHz was used as the material of the transducer since it can handle the high power needed for tissue ablation and two matching layers were used for maximum acoustic power transmission to tissue. To verify the capability of the transducer for focusing and steering, exposimetry was performed and the results correlated well with the calculated field.
机译：本文介绍了用于治疗良性前列腺增生和前列腺癌的1.75维（1.75-D）锥形超声相控阵的设计，构造和评估。该阵列被设计成能够在三维空间内聚焦和转向，在横向方向上的最大转向角为±13.5°，最大穿透深度为11 cm，从而可以治疗大型前列腺。压电陶瓷（PZT-8）以1.2 MHz的频率用作换能器的材料，因为它可以处理组织消融所需的高功率，并且两个匹配层用于最大程度地将声功率传输到组织。为了验证换能器进行聚焦和转向的能力，进行了曝光测量，其结果与计算场很好地相关。

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