-
公开(公告)号：US10463341B2
公开(公告)日：2019-11-05
申请号：US13991551
申请日：2011-12-15
申请人： Qifeng Wei , Karl E. Thiele , Ajit P. Yoganathan , Choon-Hwai Yap
发明人： Qifeng Wei , Karl E. Thiele , Ajit P. Yoganathan , Choon-Hwai Yap
摘要： An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a plurality of pinhole leaks or a slit leak of a mitral valve. A plurality of orifice locations of a leaking valve are identified and Doppler values obtained from a flow velocity field proximal each orifice. The Doppler values of each flow velocity field vectorially relating to the orifice location are processed to produce a measure of flow through the orifice. The flow measurements for a plurality of such orifices are summed to produce a quantified measure of regurgitant flow through a plurality of pinhole leaks or along a slit leak.
-
2.发明申请公开(公告)号：US20130261458A1
公开(公告)日：2013-10-03
申请号：US13991551
申请日：2011-12-15
申请人： Qifeng Wei , Karl E. Thiele , Ajit P. Yoganathan , Choon-Hwai Yap
发明人： Qifeng Wei , Karl E. Thiele , Ajit P. Yoganathan , Choon-Hwai Yap
CPC分类号： A61B8/06 , A61B8/145 , A61B8/4444 , A61B8/4488 , A61B8/463 , A61B8/483 , A61B8/488 , A61B8/5207 , A61B8/5223
摘要： An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a plurality of pinhole leaks or a slit leak of a mitral valve. A plurality of orifice locations of a leaking valve are identified and Doppler values obtained from a flow velocity field proximal each orifice. The Doppler values of each flow velocity field vectorially relating to the orifice location are processed to produce a measure of flow through the orifice. The flow measurements for a plurality of such orifices are summed to produce a quantified measure of regurgitant flow through a plurality of pinhole leaks or along a slit leak.
摘要翻译： 描述了超声波诊断成像系统，其定量通过多个针孔泄漏或二尖瓣的狭缝泄漏的反流量。 识别泄漏阀的多个孔位置，并从每个孔附近的流速场获得多普勒值。 对与孔口位置进行矢量相关的每个流速场的多普勒值进行处理，以产生通过孔口的流量的量度。 将多个这样的孔的流量测量相加以产生通过多个针孔泄漏或沿着狭缝泄漏的回流量的量化测量。
-
公开(公告)号：US10674993B2
公开(公告)日：2020-06-09
申请号：US13994794
申请日：2011-12-16
申请人： Qifeng Wei , Karl Thiele , Ajit Yoganathan , Choon-Hwai Yap
发明人： Qifeng Wei , Karl Thiele , Ajit Yoganathan , Choon-Hwai Yap
摘要： An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve. A flow quantification processor (34) in the ultrasound system produces a mathematical model of a flow velocity field proximal to a regurgitant orifice. The velocity field model produces values of velocity vectors directed toward the regurgitant orifice. These modeled values are modified for the effects of ultrasound physics and ultrasound system operation to produce expected velocity values. The expected velocity values are compared with actual Doppler velocities measured by the ultrasound system, and the differences accumulated to a mean square error which is used to adjust parameters of the model such as the orifice location and flow velocities. When this iterative processing converges with a desired comparison, parameters derived from the finally adjusted model are used to calculate the true orifice location, flow rate, and volume flow.
-
公开(公告)号：US20130274606A1
公开(公告)日：2013-10-17
申请号：US13994794
申请日：2011-12-16
申请人： Qifeng Wei , Karl Thiele , Ajit Yoganathan , Choon-Hwai Yap
发明人： Qifeng Wei , Karl Thiele , Ajit Yoganathan , Choon-Hwai Yap
IPC分类号： A61B8/06
CPC分类号： A61B8/06 , A61B8/0883 , A61B8/13 , A61B8/488 , G01S15/8979 , G01S15/8993
摘要： An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve. A flow quantification processor (34) in the ultrasound system produces a mathematical model of a flow velocity field proximal to a regurgitant orifice. The velocity field model produces values of velocity vectors directed toward the regurgitant orifice. These modeled values are modified for the effects of ultrasound physics and ultrasound system operation to produce expected velocity values. The expected velocity values are compared with actual Doppler velocities measured by the ultrasound system, and the differences accumulated to a mean square error which is used to adjust parameters of the model such as the orifice location and flow velocities. When this iterative processing converges with a desired comparison, parameters derived from the finally adjusted model are used to calculate the true orifice location, flow rate, and volume flow.
摘要翻译： 描述了一种超声诊断成像系统，其量化通过二尖瓣的反流。 超声系统中的流量定量处理器（34）产生靠近反流口的流速场的数学模型。 速度场模型产生指向反流口的速度矢量的值。 这些模型值被修改用于超声物理和超声系统操作的影响以产生预期的速度值。 将预期速度值与由超声系统测量的实际多普勒速度进行比较，并且将差异累积到均方误差，其用于调整模型的参数，例如孔口位置和流速。 当该迭代处理以期望的比较收敛时，使用从最终调整的模型得到的参数来计算真实的孔口位置，流速和体积流量。
-
公开(公告)号：US10231693B2
公开(公告)日：2019-03-19
申请号：US13990247
申请日：2011-12-16
摘要： An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve, including the automatic indication of the location of a regurgitant orifice in an ultrasound image. A clinician images the regurgitant valve and indicates in the image the presumed location of the regurgitant orifice (130). A flow quantification processor is responsive to this initial location estimate by the clinician to calculate a refined estimation of the orifice location. The refined location is indicated on the ultrasound image by the imaging system, either by relocating an icon placed by the clinician, or displaying a second icon (132) on the image at the refined location.
-
6.发明申请公开(公告)号：US20130261457A1
公开(公告)日：2013-10-03
申请号：US13990247
申请日：2011-12-16
CPC分类号： A61B8/06 , A61B8/0883 , A61B8/13 , A61B8/145 , A61B8/4444 , A61B8/4488 , A61B8/463 , A61B8/488 , A61B8/5207 , A61B8/5223 , G01S7/52071 , G01S7/52073 , G01S15/8981 , G01S15/8984 , G01S15/8993
摘要： An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve, including the automatic indication of the location of a regurgitant orifice in an ultrasound image. A clinician images the regurgitant valve and indicates in the image the presumed location of the regurgitant orifice (130). A flow quantification processor is responsive to this initial location estimate by the clinician to calculate a refined estimation of the orifice location. The refined location is indicated on the ultrasound image by the imaging system, either by relocating an icon placed by the clinician, or displaying a second icon (132) on the image at the refined location.
摘要翻译： 描述了一种超声波诊断成像系统，其定量通过二尖瓣的反流量，包括在超声图像中反流孔的位置的自动指示。 临床医师对反流阀进行成像，并在图像中指示反流孔（130）的推测位置。 流量定量处理器响应临床医生对该初始位置的估计，以计算孔位置的精确估计。 精细位置由成像系统在超声图像上指示，通过重新定位临床医生放置的图标，或在精细位置的图像上显示第二图标（132）。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.02 秒)