公开(公告)号：US06503202B1

公开(公告)日：2003-01-07

申请号：US09607556

申请日：2000-06-29

申请人： John A. Hossack ,  Thilaka S. Sumanaweera ,  Anming He Cai ,  Sandy Napel ,  David Paik ,  Brooke Jeffrey, Jr.

发明人： John A. Hossack ,  Thilaka S. Sumanaweera ,  Anming He Cai ,  Sandy Napel ,  David Paik ,  Brooke Jeffrey, Jr.

IPC分类号： A61B802

CPC分类号： A61B8/06 ,  A61B8/13 ,  G06F19/00

摘要： Medical diagnostic ultrasound methods and systems for automated flow analysis are provided. Multiple cross-sectional areas along a vessel are determined automatically. A processor locates an abnormality as a function of the multiple cross-sectional areas, such as identifying a cross-sectional area that is a threshold amount less than an average cross-sectional area. The abnormal area is highlighted on the display to assist with medical diagnosis. For the carotid artery, the interior and exterior branches are labeled to assist medical diagnosis. The two branches are automatically identified. The branch associated with additional small branches is identified as the exterior carotid.

摘要翻译： 提供了用于自动化流量分析的医疗诊断超声方法和系统。 自动确定沿船只的多个横截面积。 处理器根据多个横截面区域来定位异常，例如识别小于平均横截面积的阈值量的横截面面积。 异常区域在显示屏上突出显示，以协助医疗诊断。 对于颈动脉，内部和外部分支被标记以协助医学诊断。 两个分支自动识别。 与额外的小分支相关的分支被鉴定为外颈动脉。

公开(公告)号：US20090292208A1

公开(公告)日：2009-11-26

申请号：US12380889

申请日：2009-03-03

申请人： R. Brooke Jeffrey, JR. ,  Butrus T. Khuri-Yakub ,  Sandy A. Napel ,  Omer Oralkan

发明人： R. Brooke Jeffrey, JR. ,  Butrus T. Khuri-Yakub ,  Sandy A. Napel ,  Omer Oralkan

IPC分类号： A61B8/06

CPC分类号： A61B8/06 ,  A61B5/02007 ,  G01S15/8927 ,  G01S15/8979 ,  G01S15/8984

摘要： Peak blood velocity measurement for automated stenosis detection is provided. Ultrasound measurements of the peak blood velocity are corrected by a calculation of the Doppler angle, which exists from misalignment of the ultrasound transducer axis and the true blood velocity. The direction of the blood velocity and the Doppler angle are found by imaging a set of planar cross-sections of a blood vessel, such as the carotid artery, to obtain velocity maps of the blood flowing in the blood vessel. Peak blood velocity can be correlated with an amount of stenosis therefore accurate peak blood velocity measurements are necessary for medical diagnosis. Automated stenosis detection allows for implementation in many medical settings. A capacitive micromachined ultrasound transducer array is also provided to measure the planar cross-sectional images.

摘要翻译： 提供自动狭窄检测的峰值血液速度测量。 通过计算由超声换能器轴的未对准和真实血液速度存在的多普勒角来校正峰值血液速度的超声测量。 通过对血管如颈动脉的一组平面横截面进行成像来获得血液速度和多普勒角的方向，以获得在血管中流动的血液的速度图。 峰值血流速度可以与狭窄量相关，因此精确的峰值血液速度测量对于医学诊断是必需的。 自动狭窄检测允许在许多医疗设置中实现。 还提供电容微加工超声换能器阵列以测量平面横截面图像。

公开(公告)号：US07272251B2

公开(公告)日：2007-09-18

申请号：US10676721

申请日：2003-09-30

申请人： Burak Acar ,  Christopher F. Beaulieu ,  Salih B. Gokturk ,  Carlo Tomasi ,  David S. Paik ,  R. Brooke Jeffrey, Jr. ,  Sandy A. Napel

发明人： Burak Acar ,  Christopher F. Beaulieu ,  Salih B. Gokturk ,  Carlo Tomasi ,  David S. Paik ,  R. Brooke Jeffrey, Jr. ,  Sandy A. Napel

IPC分类号： G06K9/00

CPC分类号： G06T7/0012 ,  G06K9/00201 ,  G06T2207/30028 ,  G06T2207/30061

摘要： A method to detect and classify a structure of interest in a medical image is provided to enable high specificity without sacrificing the sensitivity of detection. The method is based on representing changes in three-dimensional image data with a vector field, characterizing the topology of this vector field and using the characterized topology of the vector field for classification of a structure of interest. The method could be used as a stand-alone method or as a post-processing method to enhance and classify outputs of a high-sensitivity low-specificity method to eliminate false positives.

摘要翻译： 提供了一种用于检测和分类医学图像中感兴趣的结构的方法，以实现高特异性而不牺牲检测的灵敏度。 该方法基于用矢量场表示三维图像数据的变化，表征该矢量场的拓扑，并且使用矢量场的表征拓扑来分类感兴趣的结构。 该方法可用作独立方法或作为后处理方法来增强和分类高灵敏度低特异性方法的输出以消除假阳性。