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    • 2. 发明申请
    • ULTRASONIC DIAGNOSIS APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS, AND MEDICAL IMAGE DIAGNOSIS APPARATUS
    • 超声波诊断装置,医学图像处理装置和医学图像诊断装置
    • US20110172531A1
    • 2011-07-14
    • US12976382
    • 2010-12-22
    • Yuko KANAYAMANaohisa KamiyamaYoko OKAMURA
    • Yuko KANAYAMANaohisa KamiyamaYoko OKAMURA
    • A61B8/14G06K9/00
    • A61B8/461A61B8/14A61B8/483G01S7/52063G01S15/8993G06T15/08
    • According to one embodiment, an ultrasonic diagnosis apparatus includes an ultrasonic probe, an ultrasonic transmission/reception unit, a volume data generating unit, a projected image generating unit, a two dimensional region-of-interest setting unit, a specifying unit, a calculation unit and a three-dimensional region-of-interest determination unit. The specifying unit specifies cells on rays which pass through the respective pixels in the 2D-ROI and are used to acquire a VR image. The calculation unit calculates the contribution degree of each cell based on the voxel value and opacity of each cell specified and calculates the average value of the contribution degrees of cells equal in distance from the screen of the VR image along the line-of-sight direction. The three-dimensional region-of-interest determination unit specifies the distances from the screen of the VR image which correspond to average contribution values exceeding the predetermined threshold and determines the position of the 3D-ROI in the volume data.
    • 根据一个实施例,超声波诊断装置包括超声波探头,超声波发送/接收单元,音量数据生成单元,投影图像生成单元,二维感兴趣区域设置单元,指定单元,计算 单位和三维感兴趣区域确定单元。 指定单元在通过2D-ROI中的各个像素的光线上指定单元格,并且用于获取VR图像。 计算单元基于规定的每个单元的体素值和不透明度来计算每个单元的贡献度,并且计算沿着视线方向从VR图像的屏幕的距离相等的单元的贡献度的平均值 。 三维感兴趣区域确定单元指定与从超过预定阈值的平均贡献值相对应的VR图像的屏幕的距离,并确定体积数据中的3D-ROI的位置。
    • 4. 发明申请
    • ULTRASONIC DIAGNOSTIC APPARATUS AND STORAGE MEDIUM
    • 超声波诊断设备和存储介质
    • US20120004553A1
    • 2012-01-05
    • US13175207
    • 2011-07-01
    • Yuko KANAYAMANaohisa KAMIYAMA
    • Yuko KANAYAMANaohisa KAMIYAMA
    • A61B8/14
    • G01S15/8995G01S7/52036G01S7/52063G01S7/52071G01S15/8979G06T7/0014G06T2200/24G06T2207/10136G06T2207/30004
    • The ultrasonic diagnostic apparatus according to the present embodiments includes an ultrasound transmitting and receiving unit, a tomographic image generating unit, an analyzing unit, and an analysis result display controller. The ultrasound transmitting and receiving unit is configured to transmit ultrasonic beams in multiple directions and is configured to receive echo signals of the multiple directions. The tomographic image generating unit is configured to generate a tomographic image in accordance with each of the directions of the ultrasonic beams. The analyzing unit is configured to compare echo signals of corresponding spatial positions in the tomographic images generated by the tomographic image generating unit with respect to each of the directions of the ultrasonic beams, and is configured to perform an analysis based on the comparison. The analysis result display controller is configured to display the analysis result obtained by the analyzing unit onto the displaying unit.
    • 根据本实施例的超声波诊断装置包括超声波发送和接收单元,断层图像生成单元,分析单元和分析结果显示控制器。 超声波发射和接收单元被配置为在多个方向上发送超声波束,并被配置为接收多个方向的回波信号。 断层图像生成单元被配置为根据超声波束的每个方向生成断层图像。 分析单元被配置为比较由断层图像生成单元生成的断层图像中相对于超声波束的每个方向的相应空间位置的回波信号,并且被配置为基于该比较执行分析。 分析结果显示控制器被配置为将由分析单元获得的分析结果显示到显示单元上。
    • 5. 发明申请
    • ULTRASONIC DIAGNOSIS APPARATUS AND ULTRASONIC IMAGE GENERATING METHOD
    • 超声诊断装置和超声图像生成方法
    • US20100249590A1
    • 2010-09-30
    • US12749918
    • 2010-03-30
    • Yuko KANAYAMANaohisa KAMIYAMA
    • Yuko KANAYAMANaohisa KAMIYAMA
    • A61B8/14
    • A61B8/14G01S7/52033G01S7/52071G01S15/8952G01S15/8963
    • The composite wave obtained by combining a fundamental wave having the center frequency f1 and a fundamental wave having the center frequency f2 is transmitted at least twice for each scanning line while performing phase modulation, and received an echo signal corresponding to each transmission for each scanning line. An echo signal in which harmonic components are canceled out, is extracted for each scanning line, by performing subtraction processing between echo signals which are obtained in this manner and respectively correspond to at least two transmissions. A signal strength difference (or a signal ratio if logarithmic compression is not performed) at each position on the scanned cross-section is calculated by using the f1 frequency component and f2 frequency component contained in the extracted echo signal. An attenuation image representing the signal strength difference at each position on the scanned cross-section is generated by using the calculated signal strength difference.
    • 通过组合具有中心频率f1的基波和具有中心频率f2的基波获得的复合波在执行相位调制的同时在每个扫描线上传输至少两次,并且接收与每个扫描线对应的每个传输的回波信号 。 通过在以这种方式获得的并分别对应于至少两个传输的回波信号之间进行减法处理,针对每条扫描线提取其中消除了谐波分量的回波信号。 通过使用提取的回波信号中包含的f1频率分量和f2频率分量来计算在扫描横截面上的每个位置处的信号强度差(或不执行对数压缩的信号比)。 通过使用计算出的信号强度差产生表示扫描横截面上每个位置处的信号强度差的衰减图像。