公开(公告)号：US20150164468A1

公开(公告)日：2015-06-18

申请号：US14538039

申请日：2014-11-11

Applicant: INSTITUTE FOR BASIC SCIENCE

Inventor： CHI YOUNG AHN ,  KI WAN JEON ,  SUNG HO KANG

IPC: A61B8/08 ,  G06T17/00 ,  A61B8/06

CPC classification number: A61B8/0883 ,  A61B8/06 ,  A61B8/488 ,  A61B8/5207 ,  A61B8/5223 ,  A61B8/5253 ,  G01S15/8984 ,  G01S15/8993 ,  G01S15/8995 ,  G06T7/269 ,  G06T7/55 ,  G06T17/00 ,  G06T2207/10132 ,  G06T2207/30048 ,  G06T2207/30104

Abstract: An apparatus and method for processing an echocardiogram using the Navier-Stokes equation is provided. The apparatus includes an ultrasonic sensor that transmits ultrasonic waves to the heart in three different directions and receives echoes thereof; an image processor that constructs first to third echocardiograms captured from the three different directions, respectively, based on the received echoes of the ultrasonic waves; a three-dimensional model construction unit that constructs a three-dimensional model of a left ventricle of the heart based on the first to third echocardiograms; and a blood flow vector calculation unit that calculates blood flow vectors within the left ventricle by applying the three-dimensional model of the left ventricle to boundary conditions in the Navier-Stokes equation. In echocardiogram processing, vector components of the blood flow within the left ventricle are calculated using the Navier-Stokes equation, whereby the vector components of the blood flow can be more accurately calculated.

Abstract translation: 提供了一种使用Navier-Stokes方程处理超声心动图的装置和方法。 该装置包括：超声波传感器，其以三个不同的方向向心脏发送超声波并接收其回波; 基于所接收到的超声波的回波，分别构建从三个不同方向捕获的第一到第三超声心动图的图像处理器; 基于第一至第三超声心动图构建心脏左心室的三维模型的三维模型构建单元; 以及血流矢量计算单元，其通过将所述左心室的三维模型应用于Navier-Stokes方程中的边界条件来计算所述左心室内的血流矢量。 在超声心动图处理中，使用Navier-Stokes方程计算左心室内血流量的矢量分量，从而可以更精确地计算血流的矢量分量。

公开(公告)号：US20150212015A1

公开(公告)日：2015-07-30

申请号：US14538150

申请日：2014-11-11

Applicant: INSTITUTE FOR BASIC SCIENCE

Inventor： KI WAN JEON ,  CHI YOUNG AHN ,  SUNG WHAN KIM

IPC: G01N23/04 ,  G06T7/00 ,  G01T1/17

CPC classification number: G01N23/046 ,  G06T11/003 ,  G06T11/005 ,  G06T2211/408

Abstract: An apparatus and method for computed tomography image processing is provided. The apparatus includes: an X-ray detection unit that detects an X-ray beam having passed through a subject and outputs an energy value thereof; a line integral calculation unit that calculates line integral values of attenuation coefficients representing attenuation of the energy value of the X-ray beam having passed through the subject and been detected, based on the energy value; an image processing unit that reconstructs a tomogram based on the line integral values; and an image output unit that outputs the tomogram. The apparatus and method for computed tomography image processing can calculate line integral values of attenuation coefficients constituting an integrand of an X-ray projection function using the mean value theorem for integrals in order to restore an image of a subject from an X-ray beam detected in computed tomography image processing.

Abstract translation: 提供了一种用于计算机断层摄影图像处理的装置和方法。 该装置包括：X射线检测单元，其检测通过被检体的X射线束，并输出其能量值; 线积分计算单元，其基于能量值计算表示已经通过被检体并被检测的X射线束的能量值的衰减的衰减系数的线积分值; 图像处理单元，其基于线积分值重建断层图像; 以及输出断层图像的图像输出单元。 计算机断层图像处理的装置和方法可以使用积分的平均值定理来计算构成X射线投影函数的被积函数的衰减系数的线积分值，以便从检测到的X射线束恢复被摄体的图像 在计算机断层摄影图像处理中。