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公开(公告)号：US20170079622A1
公开(公告)日：2017-03-23
申请号：US15308828
申请日：2015-05-11
发明人： Matthew O'Donnell , Thu-Mai Nguyen , Chen-Wei Wei , Jinjun Xia
CPC分类号： A61B8/5261 , A61B5/0035 , A61B5/0095 , A61B8/0841 , A61B8/14 , A61B8/4416 , A61B8/4483 , A61B8/463
摘要： Methods and system for producing combined photoacoustic/ultrasonic image frames use a low-power narrow beam laser to direct sequential pulses along a path overlying an internal region of interest. Photoacoustic responses are received and used to generate sub-frames. Between each of the laser pulses a plurality of ultrasound pulse-echo beams are sequentially emitted towards the region of interest, and the reflections are received and used to generate ultrasound sub-frames. The photoacoustic sub-frames are combined to produce a photoacoustic frame, and the ultrasound sub-frames are combined to produce an ultrasound frame. The photoacoustic and ultrasound frames are combined to produce an image frame. The method and system are suitable for producing real-time, high-contrast video.
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公开(公告)号：US20150320394A1
公开(公告)日：2015-11-12
申请号：US14710464
申请日：2015-05-12
发明人： Bastien Arnal , Thu-Mai Nguyen , Matthew O'Donnell
CPC分类号： A61B8/485 , A61B5/0053 , A61B5/0066 , A61B5/055 , A61B8/4488 , G01S7/52022 , G01S7/52042 , G01S7/52079 , G01S15/8915 , G01S15/8929 , G01S15/8956 , G01S15/899
摘要： The present disclosure provides systems, methods, and devices for improved generation and application of radiation force to a material. In one aspect, a system for producing an acoustic radiation force to generate displacement in a material comprises an ultrasonic transducer array, one or more processors, and memory. The memory can comprise instructions that, when executed by the one or more processors, cause the system to generate a push acoustic energy focused to a push focal region in the material using the ultrasonic transducer array, so as to produce the acoustic radiation force to generate displacement in the material. The push focal region can comprise a first width along a first direction transverse to a direction of propagation of the push acoustic energy greater than a second width along a second direction transverse to the direction of propagation of the push acoustic energy.
摘要翻译： 本公开提供用于改进对材料的辐射力的产生和应用的系统，方法和装置。 一方面，用于产生声辐射力以在材料中产生位移的系统包括超声换能器阵列，一个或多个处理器和存储器。 存储器可以包括指令，当由一个或多个处理器执行时，使得系统使用超声换能器阵列产生聚焦到材料中的推焦区域的推声能，从而产生声辐射力以产生 材料中的位移。 推焦区域可以沿着横向于推力声能的传播方向的第二方向沿着横向于按压声能的传播方向的第一方向的第一宽度大于第二宽度。
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公开(公告)号：US10888304B2
公开(公告)日：2021-01-12
申请号：US15308828
申请日：2015-05-11
发明人： Matthew O'Donnell , Thu-Mai Nguyen , Chen-Wei Wei , Jinjun Xia , Ivan Pelivanov , Soon Joon Yoon
摘要： Methods and system for producing combined photoacoustic/ultrasonic image frames use a low-power narrow beam laser to direct sequential pulses along a path overlying an internal region of interest. Photoacoustic responses are received and used to generate sub-frames. Between each of the laser pulses a plurality of ultrasound pulse-echo beams are sequentially emitted towards the region of interest, and the reflections are received and used to generate ultrasound sub-frames. The photoacoustic sub-frames are combined to produce a photoacoustic frame, and the ultrasound sub-frames are combined to produce an ultrasound frame. The photoacoustic and ultrasound frames are combined to produce an image frame. The method and system are suitable for producing real-time, high-contrast video.
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