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首页> 外文会议>Ultrasonics Symposium (IUS), 2009 >Real time imaging with the Sonic Window: A pocket-sized, C-scan, medical ultrasound device
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Real time imaging with the Sonic Window: A pocket-sized, C-scan, medical ultrasound device

机译：使用Sonic Window进行实时成像：袖珍C扫描医学超声设备

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The Sonic Window is a pocket-sized, C-scan ultrasound device designed to expand ultrasound into clinical settings and applications that have yet to benefit from its utility. The low component cost, compact form factor with integrated 2D transducer array, and an intuitive C-scan image format displayed directly over the anatomy of interest are what distinguish this device from conventional ultrasound systems. A prototype of the Sonic Window was designed and constructed consisting of a fully sampled 60 × 60 transducer array, custom integrated circuits (ICs) containing 3,600 front-end receive channels, a high-voltage transmit circuit, an off-the-shelf digital signal processor (DSP), and a liquid crystal display. The 2D transducer array was fabricated on one side of a 2-layer PCB and the front-end ICs were attached onto the other side using a flip-chip process. The front-end ICs acquire the data for one C-scan slice per transmit event and send digital data to the DSP, which uses the Direct-Sampled In-phase Quadrature (DSIQ) method for efficient beamforming. The prototype fits in a 6-cm × 15-cm × 3.5-cm enclosure containing a 1500 mAh rechargeable battery and weighs 6 oz. (170 g). It can form real-time C-scan images at 43 FPS with a 2-hour scan time on battery power. Real-time volume capture enables B-mode image formats as well as 3D imaging. Lateral resolution is approximately 0.75 mm and cystic contrast is 43 dB. Phantom target and in vivo images are presented to demonstrate the imaging capability of the device.
机译：Sonic Window是一种袖珍尺寸的C扫描超声设备，旨在将超声扩展到尚未从其实用程序中受益的临床环境和应用中。该组件与传统超声系统的区别在于低组件成本，紧凑的外形尺寸以及集成的2D换能器阵列，以及直接在感兴趣的解剖结构上方显示的直观C扫描图像格式。设计并构造了Sonic Window的原型，该原型由完全采样的60×60换能器阵列，包含3,600个前端接收通道的定制集成电路（IC），高压发射电路，现成的数字信号处理器（DSP）和液晶显示器。在2层PCB的一侧制造2D换能器阵列，并使用倒装芯片工艺将前端IC连接到另一侧。前端IC在每个发送事件中获取一个C扫描切片的数据，并将数字数据发送到DSP，DSP使用直接采样的同相正交（DSIQ）方法进行有效的波束成形。该原型可放入6厘米×15厘米×3.5厘米的外壳中，该外壳包含1500 mAh可充电电池，重量为6盎司。 （170克）。它可以以43帧/秒的速度形成实时C扫描图像，并用2个小时的电池供电时间进行扫描。实时体积捕获支持B模式图像格式以及3D成像。横向分辨率约为0.75 mm，囊性对比为43 dB。幻影目标和体内图像被呈现以证明该设备的成像能力。

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