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    • 9. 发明申请
    • METHOD AND APPARATUS TO PRODUCE ULTRASONIC IMAGES USING MULTIPLE APERTURES
    • 使用多种方法生产超声波图像的方法和装置
    • WO2008051639A3
    • 2008-09-25
    • PCT/US2007073615
    • 2007-07-16
    • MAUI IMAGING INCSPECHT DONALD F
    • SPECHT DONALD F
    • A61B8/00
    • A61B8/145A61B5/725A61B8/08A61B8/085A61B8/42A61B8/4209A61B8/4218A61B8/4245A61B8/4281A61B8/4455A61B8/4483A61B8/4494A61B8/483A61B8/5207A61B8/5253A61B8/543G01S7/52046G01S7/5205G01S15/8977
    • An ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from the echoes received by single omnidirectional transducer. Two-dimensional images with different noise components can be constructed from the echoes received and combinable to produce images with better signal to noise ratios and lateral resolution. A method based on information content to compensate for the different delays and paths through intervening tissue is described. Specular reflections are attenuated using a single omnidirectional receiver displaced from the insonifying probe. These techniques have broad application in medical imaging suited to multi-aperture cardiac imaging using two or more intercostal spaces Another method employs multiple transducers increasing the lateral resolution and reducing noise and includes two or more active phased array transducers in the same scan plane The phase delays are computed such that the transducers operate as one larger phased array with a gap (or gaps) in the middle.
    • 超声波扫描器和全向接收换能器,用于从由单向全向换能器接收的回波产生二维图像。 可以从接收到的回波构建具有不同噪声分量的二维图像,并且可以组合以产生具有更好的信噪比和横向分辨率的图像。 描述了基于信息内容以补偿通过中间组织的不同延迟和路径的方法。 使用从失真探头移位的单个全向接收器来衰减镜面反射。 这些技术在适用于使用两个或多个肋间空间的多孔心脏成像的医学成像中具有广泛的应用。另一种方法使用多个换能器来增加横向分辨率并降低噪声,并且在同一扫描平面中包括两个或更多个有源相控阵转换器。相位延迟 被计算为使得换能器作为一个较大的相控阵列工作,在中间具有间隙(或间隙)。