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手持式大型2D阵列,带有亚齐穆塔尔平面波和排列多重复合的高度光束成形,由本地ASIC电子启用.

Robert Wodnicki, Josquin Foiret, Baoqiang Liu

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    这项研究引入了一种新的手持式大型2D超声波阵列探针,用于改进医学成像. 先进的探头实现了显著的透和分辨率,显示了未来临床应用的前景.

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    科学领域:

    • 超声波成像 超声波成像
    • 医疗器械工程 医疗器械工程
    • 阵列传感器技术 阵列传感器技术

    背景情况:

    • 大光圈2D阵列在超声波成像中增强横向和对比分辨率.
    • 定制应用程序特定集成电路 (ASIC) 复杂化提高了阵列性能.

    研究的目的:

    • 开发和评估一个模块化,手持式大光圈2D超声波阵列探测器,用于增强人类成像.
    • 为了展示原型的2D和3D超声波成像能力.

    主要方法:

    • 开发一个1024元 (64x16) 2D阵列探测器,具有自定义的ASIC复杂化.
    • 集成预放大器和FPGA用于数字控制和局部缓冲.
    • 测试探头的成像性能,包括透度,分辨率和对比度与噪声比率 (CNR).

    主要成果:

    • 实现的成像透度降至140毫米.
    • 实验的侧向和轴向分辨率分别为1.1mm和0.4mm,深度为67mm.
    • 在人类志愿者身上展示了活体肝脏成像,初步结果很有希望.

    结论:

    • 开发的手持大型2D阵列探测器在超声波成像能力上提供了显著的改进.
    • 该原型显示了未来临床诊断应用的潜力,特别是在深层组织成像中.