-
公开(公告)号：US07536043B2
公开(公告)日：2009-05-19
申请号：US10642914
申请日：2003-08-18
申请人： Liexiang Fan , Wayne J. Gueck , King Yuen Wong
发明人： Liexiang Fan , Wayne J. Gueck , King Yuen Wong
CPC分类号： G06T7/0012 , A61B8/483 , G06T13/80 , G06T2207/10132 , G06T2207/30104
摘要： Flow is represented by a synthesized or artificial pattern. Motion is visualized by apparent displacement of pixels from one frame to the next. An artificial pattern is introduced in order to present the flow. A changing parameter, such as velocity, is viewed as a function of multiple images or over time. The rate of change of the parameter is proportional to the perceived or actual motion. Humans perceive flow as a live stream, such as tap water pouring from a faucet or a stream in a creek. Flow associated with medical imaging is presented in a similar way, such that a pattern or other flow information persists over multiple images. The flow is synthesized by generating patterns and moving the generated patterns in the field of view. The direction and rate of motion of the pattern are a function of the direction and rate of the flow.
摘要翻译： 流程由合成或人造图案表示。 运动通过从一帧到下一帧的像素的明显位移可视化。 引入人造模式以呈现流动。 变化的参数（如速度）被视为多个图像或随着时间的推移的函数。 参数的变化率与感知或实际运动成比例。 人类将流动视为活流，例如从水龙头或溪流中涌出的自来水。 与医学成像相关联的流程以类似的方式呈现，使得图案或其他流动信息保持在多个图像上。 通过在视野中生成图案并移动生成的图案来合成流程。 图案的方向和运动速度是流动方向和速度的函数。
-
公开(公告)号：US08211024B2
公开(公告)日：2012-07-03
申请号：US11147098
申请日：2005-06-06
IPC分类号： A61B8/14
CPC分类号： A61B8/06
摘要： Flow information (e.g., velocity and acceleration) and/or pressure gradient information are determined with ultrasound. Both velocity and acceleration are simultaneously estimated using a model and least squares analysis. Anti-aliasing of velocity information may be provided using the model and least squares analysis. Pressure gradient is calculated from velocity information automatically, more likely providing consistent measurements. Consistency may be increased further by automatically positioning a region of interest in either a multidimensional spatial image or a spatial-temporal image. A parametric image of pressure gradient for each spatial location within the image is generated as well as a delta pressure curve. Any single one or combinations of two or more of the features described above may be used.
摘要翻译： 用超声波确定流量信息（例如，速度和加速度）和/或压力梯度信息。 同时使用模型和最小二乘法分析速度和加速度。 可以使用模型和最小二乘法分析来提供速度信息的抗锯齿。 压力梯度由速度信息自动计算，更有可能提供一致的测量。 通过将感兴趣区域自动定位在多维空间图像或空间 - 时间图像中，可以进一步增加一致性。 产生图像内每个空间位置的压力梯度的参数图像以及三角洲压力曲线。 可以使用上述特征中的任何一个或两个或更多个特征的组合。
-
公开(公告)号：US09320498B2
公开(公告)日：2016-04-26
申请号：US14164031
申请日：2014-02-17
申请人： Chi Hyung Seo , King Yuen Wong
发明人： Chi Hyung Seo , King Yuen Wong
CPC分类号： A61B8/5276 , A61B8/06 , A61B8/488 , A61B8/5207 , A61B8/5269
摘要： Twinkle artifacts are suppressed in color flow. The color flow data itself, such as temporal decorrelation and spatial variance of the velocity and/or power, is used to identify the twinkle artifact. The aliased or high velocities caused by the twinkle artifact are suppressed, such as by reducing the velocity or by spatial filtering that adapts to the locations of the artifact. The powers caused by the twinkle artifact are suppressed.
-
公开(公告)号：US20130336560A1
公开(公告)日：2013-12-19
申请号：US13523725
申请日：2012-06-14
申请人： King Yuen Wong
发明人： King Yuen Wong
CPC分类号： A61B8/5207 , A61B8/06 , A61B8/488 , A61B8/5223 , A61B8/5276 , G01S15/8981
摘要： Motion artifacts are suppressed for motion imaging in medical diagnostic ultrasound. Spatial correlation is used to detect motion, including any lateral motion. Some aspect of clutter filtering may be set based on the amount of spatial correlation or detected motion. The shift for frequency mixing, wall filter cutoff frequency, and/or velocity threshold may be set.
摘要翻译： 在医学诊断超声中，运动伪影被抑制用于运动成像。 空间相关用于检测运动，包括任何横向运动。 可以基于空间相关性或检测到的运动的量来设置杂波滤波的一些方面。 可以设置频率混合，壁滤波器截止频率和/或速度阈值的偏移。
-
公开(公告)号：US09554778B2
公开(公告)日：2017-01-31
申请号：US14076067
申请日：2013-11-08
申请人： King Yuen Wong , Chi Hyung Seo
发明人： King Yuen Wong , Chi Hyung Seo
IPC分类号： A61B8/00
CPC分类号： A61B8/56 , A61B8/4427 , A61B8/463 , A61B8/54
摘要： Responsive power saving is provided for ultrasound imaging, such as in portable ultrasound systems. By reducing scan line density in response to removal of a transducer from a patient, power usage may be reduced while still monitoring for return of the transducer to the patient. By disabling the display, power usage may be reduced while still monitoring for return of the transducer to the patient. All or most electronics not associated with monitoring for the return of the transducer to the patient may be disabled or not used to conserve power.
摘要翻译： 针对超声波成像提供响应式节能，如便携式超声系统。 通过减少扫描线密度以响应于从患者移除换能器，可以降低功率使用，同时仍然监测换能器返回到患者。 通过禁用显示器，可以减少功率使用，同时仍然监测换能器返回到患者。 与传感器返回到患者监测无关的所有或大多数电子器件可能被禁用或不被用于节省电力。
-
公开(公告)号：US09420997B2
公开(公告)日：2016-08-23
申请号：US13523725
申请日：2012-06-14
申请人： King Yuen Wong
发明人： King Yuen Wong
CPC分类号： A61B8/5207 , A61B8/06 , A61B8/488 , A61B8/5223 , A61B8/5276 , G01S15/8981
摘要： Motion artifacts are suppressed for motion imaging in medical diagnostic ultrasound. Spatial correlation is used to detect motion, including any lateral motion. Some aspect of clutter filtering may be set based on the amount of spatial correlation or detected motion. The shift for frequency mixing, wall filter cutoff frequency, and/or velocity threshold may be set.
摘要翻译： 在医学诊断超声中，运动伪影被抑制用于运动成像。 空间相关用于检测运动，包括任何横向运动。 可以基于空间相关性或检测到的运动的量来设置杂波滤波的一些方面。 可以设置频率混合，壁滤波器截止频率和/或速度阈值的偏移。
-
公开(公告)号：US20150133786A1
公开(公告)日：2015-05-14
申请号：US14076067
申请日：2013-11-08
申请人： King Yuen Wong , Chi Hyung Seo
发明人： King Yuen Wong , Chi Hyung Seo
IPC分类号： A61B8/00
CPC分类号： A61B8/56 , A61B8/4427 , A61B8/463 , A61B8/54
摘要： Responsive power saving is provided for ultrasound imaging, such as in portable ultrasound systems. By reducing scan line density in response to removal of a transducer from a patient, power usage may be reduced while still monitoring for return of the transducer to the patient. By disabling the display, power usage may be reduced while still monitoring for return of the transducer to the patient. All or most electronics not associated with monitoring for the return of the transducer to the patient may be disabled or not used to conserve power.
摘要翻译： 针对超声波成像提供响应式节能，如便携式超声系统。 通过减少扫描线密度以响应于从患者移除换能器，可以减少功率使用，同时仍然监测换能器返回到患者。 通过禁用显示器，可以减少功率使用，同时仍然监测换能器返回到患者。 与传感器返回到患者监测无关的所有或大多数电子器件可能被禁用或不被用于节省电力。
-
公开(公告)号：US20150230777A1
公开(公告)日：2015-08-20
申请号：US14164031
申请日：2014-02-17
申请人： Chi Hyung Seo , King Yuen Wong
发明人： Chi Hyung Seo , King Yuen Wong
CPC分类号： A61B8/5276 , A61B8/06 , A61B8/488 , A61B8/5207 , A61B8/5269
摘要： Twinkle artifacts are suppressed in color flow. The color flow data itself, such as temporal decorrelation and spatial variance of the velocity and/or power, is used to identify the twinkle artifact. The aliased or high velocities caused by the twinkle artifact are suppressed, such as by reducing the velocity or by spatial filtering that adapts to the locations of the artifact. The powers caused by the twinkle artifact are suppressed.
摘要翻译： 闪烁的人造物在色彩流中被抑制。 颜色流数据本身，例如时间去相关和速度和/或功率的空间方差被用于识别闪烁的神器。 抑制由闪烁伪影引起的混叠或高速度，例如通过降低适应于人造物位置的速度或空间滤波。 由闪烁的神器产生的力量被抑制。
-
公开(公告)号：US06679843B2
公开(公告)日：2004-01-20
申请号：US10179080
申请日：2002-06-25
申请人： Qinglin Ma , Rodney L. Boleyn , King Yuen Wong
发明人： Qinglin Ma , Rodney L. Boleyn , King Yuen Wong
IPC分类号： A61B806
CPC分类号： G01S15/8979 , A61B8/06 , A61B8/13 , G01S7/52071 , G01S7/52077
摘要： Elevation fold-in artifact is reduced by combining Doppler and B-mode image signals. The B-mode image signals and Doppler image signals are combined using a modulated, non-linear function. Portions of the B-mode image signal associated with stationary tissue are intact while portions of the B-mode image signal associated with flow are substantially suppressed. The suppression is gradual rather than binary to avoid flash artifacts, such as providing an adaptive modulated, non-linear combination function. Doppler or flow image signals are less sensitive than tissue or B-mode signals to elevation beam width. Suppressing the B-mode image signal where flow exists better identifies small vessels that would otherwise be characterized as tissue. Small vessel or other small structure information associated with moving fluid is inserted within the gray-scale or B-mode image. Clutter within large vessels is more likely mapped to black or removed. The pathology is kept intact by not removing stationary tissue information. The enhanced large vessel presentation and added visibility of small vessels provides more detail about tissue morphology for radiology applications. The resulting gray-scale image appears as if fine or narrow beams had been used in both the azimuth as well as the elevation directions. Unlike a true narrowing of the elevation beam at a focal point, the enhanced imaging is provided over an entire field of view, and is not probe dependent. The enhanced imaging could be a software solution.
摘要翻译： 通过组合多普勒和B模式图像信号来降低仰角折叠伪影。 使用调制的非线性函数来组合B模式图像信号和多普勒图像信号。 与静止组织相关联的B模式图像信号的部分是完整的，而与流动相关联的B模式图像信号的部分被基本上抑制。 抑制是渐进的而不是二进制的，以避免闪光伪像，例如提供自适应调制的非线性组合功能。 多普勒或流动图像信号比组织或B模式信号对提升波束宽度敏感。 抑制流动存在的B模式图像信号更好地识别否则将被表征为组织的小血管。 与移动流体相关联的小容器或其他小型结构信息插入灰度或B模式图像内。 大容器内的杂波更有可能映射到黑色或去除。 通过不去除固定组织信息来保持病理状态。 增强的大容器呈现和增加的小容器的可视性提供了关于放射学应用的组织形态的更多细节。 所产生的灰度图像看起来好像在方位角和高程方向都使用了细小的或窄的光束。 与在焦点处的仰角波束的真正变窄不同，增强的成像在整个视场上提供，并且不依赖于探针。 增强的成像可能是一个软件解决方案。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.024 秒)
