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Three-Dimensional Super-Resolution Imaging Using a Row-Column Array.
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control ( IF 3.0 ) Pub Date : 2019-10-21 , DOI: 10.1109/tuffc.2019.2948563
Jorgen Arendt Jensen , Martin Lind Ommen , Sigrid Husebo Oygard , Mikkel Schou , Thomas Sams , Matthias Bo Stuart , Christopher Beers , Erik Vilain Thomsen , Nielse Bent Larsen , Borislav Gueorguiev Tomov

A 3-D super-resolution (SR) pipeline based on data from a row-column (RC) array is presented. The 3-MHz RC array contains 62 rows and 62 columns with a half wavelength pitch. A synthetic aperture (SA) pulse inversion sequence with 32 positive and 32 negative row emissions is used for acquiring volumetric data using the SARUS research ultrasound scanner. Data received on the 62 columns are beamformed on a GPU for a maximum volume rate of 156 Hz when the pulse repetition frequency is 10 kHz. Simulated and 3-D printed point and flow microphantoms are used for investigating the approach. The flow microphantom contains a 100- [Formula: see text] radius tube injected with the contrast agent SonoVue. The 3-D processing pipeline uses the volumetric envelope data to find the bubble's positions from their interpolated maximum signal and yields a high resolution in all three coordinates. For the point microphantom, the standard deviation on the position is (20.7, 19.8, 9.1) [Formula: see text]. The precision estimated for the flow phantom is below [Formula: see text] in all three coordinates, making it possible to locate structures on the order of a capillary in all three dimensions. The RC imaging sequence's point spread function has a size of 0.58 × 1.05 × 0.31 mm3 ( 1.17λ×2.12λ×0.63λ ), so the possible volume resolution is 28900 times smaller than for SA RC B-mode imaging.

中文翻译:

使用行列阵列的三维超分辨率成像。

提出了一种基于来自行列(RC)数组的数据的3-D超分辨率(SR)管线。3 MHz RC阵列包含62行和62列,具有半波长间距。使用SARUS研究型超声波扫描仪,具有32行正向和32行负向发射的合成孔径(SA)脉冲反转序列用于获取体积数据。当脉冲重复频率为10 kHz时,在62列上接收的数据在GPU上进行波束成形,最大体积率为156 Hz。模拟的和3-D打印的点和流微观模型用于研究该方法。流动微影包含一个注入了造影剂SonoVue的100-半径管。3-D处理管道使用体积包络数据来查找气泡 s的位置从其内插的最大信号开始,并在所有三个坐标中产生高分辨率。对于点幻影,位置的标准偏差为(20.7,19.8,9.1)[公式:请参见文本]。在所有三个坐标中,为流动体模估计的精度低于[公式:参见文本],从而可以在所有三个维度上按毛细管的顺序定位结构。RC成像序列的点扩展函数的大小为0.58×1.05×0.31 mm3(1.17λ×2.12λ×0.63λ),因此可能的体积分辨率比SA RC B模式成像小28900倍。这样就可以在所有三个维度上按毛细管的顺序定位结构。RC成像序列的点扩展函数的大小为0.58×1.05×0.31 mm3(1.17λ×2.12λ×0.63λ),因此可能的体积分辨率比SA RC B模式成像小28900倍。这样就可以在所有三个维度上按毛细管的顺序定位结构。RC成像序列的点扩展函数的大小为0.58×1.05×0.31 mm3(1.17λ×2.12λ×0.63λ),因此可能的体积分辨率比SA RC B模式成像小28900倍。
更新日期:2020-03-07
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