公开(公告)号：US20080009737A1

公开(公告)日：2008-01-10

申请号：US11756261

申请日：2007-05-31

申请人： Masao Takimoto ,  Muneki Kataguchi ,  Akihiro Kakee ,  Tomohisa Imamura ,  Fumiyasu Sakaguchi ,  Atsushi Sumi

发明人： Masao Takimoto ,  Muneki Kataguchi ,  Akihiro Kakee ,  Tomohisa Imamura ,  Fumiyasu Sakaguchi ,  Atsushi Sumi

IPC分类号： A61B8/00

CPC分类号： A61B8/06

摘要： An ultrasonic Doppler diagnostic apparatus sends ultrasonic waves to a specimen, receives a reflection signal of the ultrasonic waves from the specimen to detect a Doppler signal, obtains blood flow information indicating a peak flow velocity of coronary blood flow, and displays the flow velocity information before and after the administration of a drug to the specimen on a display unit. Then, at least velocity ranges of the flow velocity information before and after the administration of the drug to the specimen are adjusted, and during an ultrasonic scan of the specimen, data on a plurality of acquired images having different velocity ranges are adjusted to the same velocity range. A system control unit displays the data on the plurality of images adjusted to the same velocity range on the display unit.

摘要翻译： 超声波多普勒诊断装置向样本发送超声波，从样本接收超声波的反射信号，检测多普勒信号，得到表示冠状动脉血流的峰值流速的血流信息，显示出血流信息 以及在显示单元上向样品施用药物之后。 然后，调整药物给予试样前后的流速信息的速度范围，并且在样本的超声波扫描期间，将具有不同速度范围的多个获取图像的数据调整为相同 速度范围 系统控制单元显示在显示单元上调整到相同速度范围的多个图像上的数据。

公开(公告)号：US07303529B2

公开(公告)日：2007-12-04

申请号：US10798353

申请日：2004-03-12

申请人： Tetsuya Kawagishi ,  Tomohisa Imamura ,  Naohisa Kamiyama

发明人： Tetsuya Kawagishi ,  Tomohisa Imamura ,  Naohisa Kamiyama

IPC分类号： A61B8/00

CPC分类号： A61B8/06 ,  G01S15/8952

摘要： The difference frequency component between a first fundamental wave of frequency f and a second fundamental wave of frequency f2 is caused to interact with a second harmonic wave, thereby to attain the enhancement of a second harmonic signal, etc., whereby a reflected wave component to be imaged is extracted at a high S/N ratio. By way of example, in a case where the difference frequency component is to appear on the lower frequency side of the second harmonic wave of the first fundamental wave so as to be superposed on this second harmonic wave, the frequencies are set at f2=2.8f or so. Besides, in a case where the difference frequency component is to appear on the higher frequency side of the second harmonic wave of the first fundamental wave so as to be superposed on this second harmonic wave, the frequencies are set at f2=3.2f or so.

摘要翻译： 第一基频频率之间的差频分量

公开(公告)号：US20060084874A1

公开(公告)日：2006-04-20

申请号：US11252707

申请日：2005-10-19

申请人： Tomohisa Imamura ,  Tetsuya Kawagishi

发明人： Tomohisa Imamura ,  Tetsuya Kawagishi

IPC分类号： A61B8/06

CPC分类号： A61B8/06 ,  A61B8/13

摘要： A combined wave having a plurality of frequencies and phases is transmitted to each of a plurality of scan lines in at least three rates by alternately inverting a phase by 180°. An obtained echo signal is received for each rate. The echo signals are added by using arbitrary weighting coefficients so that 0 is obtained by using the polarity as the sign. Ultrasonic image data is generated by using a difference tone component contained in the added echo signal.

公开(公告)号：US20050023934A1

公开(公告)日：2005-02-03

申请号：US10883733

申请日：2004-07-06

申请人： Takashi Takeuchi ,  Tomohisa Imamura ,  Takashi Owaga

发明人： Takashi Takeuchi ,  Tomohisa Imamura ,  Takashi Owaga

IPC分类号： G01N29/24 ,  A61B8/00 ,  B06B1/06 ,  G10K11/26 ,  H01L41/08 ,  H04R17/00

CPC分类号： B06B1/0622 ,  G10K11/26

摘要： A piezoelectric transducer for an ultrasonic scan is provided. The transducer includes a plurality of piezoelectric members arrayed. The plurality of piezoelectric members have different compositions parts in a slice direction so that an ultrasonic beam is focused in the slice direction.

摘要翻译： 提供了一种用于超声波扫描的压电换能器。 换能器包括排列的多个压电元件。 多个压电构件在切片方向上具有不同的组成部分，使得超声波束在切片方向上聚焦。

公开(公告)号：US08216145B2

公开(公告)日：2012-07-10

申请号：US12338101

申请日：2008-12-18

申请人： Tomohisa Imamura ,  Koichiro Kurita

发明人： Tomohisa Imamura ,  Koichiro Kurita

IPC分类号： A61B8/00 ,  G06K9/00

CPC分类号： A61B8/08

摘要： Low-resolution image data for recognizing signal components macroscopically is generated, an effective diagnostic component and an ineffective diagnostic component are determined by using the low-resolution image data, and a correction coefficient is decided for every pixel such that the correction coefficient is set to 1 for the effective diagnostic component and the correction coefficient is set to equal to or larger than 0 and smaller than 1 for the ineffective diagnostic component. In addition, correction processing for raising the contrast between the effective diagnostic component and the ineffective diagnostic component by multiplying each pixel value of original image data by a corresponding correction coefficient is executed.

摘要翻译： 生成用于识别信号分量的低分辨率图像数据，通过使用低分辨率图像数据来确定有效诊断部件和无效诊断部件，并且为每个像素确定校正系数，使得校正系数被设置为 1，对于无效的诊断部件，校正系数设定为等于或大于0且小于1。 此外，执行用于通过将原始图像数据的每个像素值乘以相应的校正系数来提高有效诊断部件与无效诊断部件之间的对比度的校正处理。

公开(公告)号：US20110224547A1

公开(公告)日：2011-09-15

申请号：US13044667

申请日：2011-03-10

申请人： Yoshihito Abe ,  Tomohisa Imamura

发明人： Yoshihito Abe ,  Tomohisa Imamura

IPC分类号： A61B8/14

CPC分类号： A61B8/08 ,  A61B8/4455 ,  A61B8/4461 ,  A61B8/54 ,  A61B8/546 ,  G01S7/5205 ,  G01S7/52079 ,  G01S7/5208 ,  G01S15/8918 ,  G01S15/8925 ,  G01S15/894 ,  G01S15/8993

摘要： An ultrasound image diagnosis apparatus and a method for setting an ultrasound drive voltage by which appropriate probe motion parameters are established by individually estimating temperature changes which occur due to a plurality of heat sources existing within the probe. By individually storing or correcting relative temperature change data associated with motion parameters due to a plurality of heat source elements, an optimum driving voltage for the ultrasound transducers is set. Since a transmission drive voltage is larger than the conventional drive voltage can be set under a permissible probe temperature, image diagnosis can be improved.

摘要翻译： 一种超声波图像诊断装置和用于设定超声驱动电压的方法，通过单独估计由于存在于探针内的多个热源而发生的温度变化，建立适当的探针运动参数。 通过单独存储或校正由于多个热源元件引起的与运动参数相关联的相对温度变化数据，设置用于超声换能器的最佳驱动电压。 由于传输驱动电压大于传统的驱动电压可以设定在允许的探针温度下，因此可以提高图像诊断。

公开(公告)号：US07666139B2

公开(公告)日：2010-02-23

申请号：US10682733

申请日：2003-10-10

申请人： Akihiro Kakee ,  Makoto Hirama ,  Tetsuya Kawagishi ,  Tomohisa Imamura

发明人： Akihiro Kakee ,  Makoto Hirama ,  Tetsuya Kawagishi ,  Tomohisa Imamura

IPC分类号： A61B8/00 ,  A61B8/12 ,  A61B8/14

CPC分类号： A61B8/481

摘要： An ultrasonic imaging apparatus, including an ultrasonic probe including an ultrasonic vibration element configured to transmit and receive an ultrasonic wave in a scanning direction in an object in which a contrast media has been injected; a transmission unit configured to apply successive drive pulses to the probe so as to transmit respective ultrasonic signals in respective rate sections; a reception unit configured to receive reflected ultrasonic signals, including first reflected ultrasonic signals produced by a first drive pulse in a first rate section and reflected back to the probe in the first rate section and in a second rate section subsequent to the first rate section; an operation unit configured to perform an operation including at least one of addition and subtraction of at least two of the first ultrasonic signals received during different rate sections; and a signal processor configured to produce image data based on the result of the operation performed by the operation unit. Plural driving pulses having alternating polarity may be applied to the probe in a same scan direction.

摘要翻译： 一种超声波成像装置，包括：超声波探头，其包括超声波振动元件，所述超声波振动元件被配置为在已经注射了造影剂的物体中沿扫描方向发送和接收超声波; 发送单元，被配置为向所述探针施加连续的驱动脉冲，以便在各个速率区间中发送各自的超声波信号; 接收单元，被配置为接收反射超声波信号，所述反射超声波信号包括由第一速率部分中的第一驱动脉冲产生的第一反射超声波信号，并且被反射回到第一速率部分中的探头和在第一速率部分之后的第二速率部分中; 操作单元，被配置为执行包括在不同速率区段期间接收的所述第一超声波信号中的至少两个的加法和减法中的至少一个的操作; 以及信号处理器，被配置为基于由所述操作单元执行的操作的结果来产生图像数据。 具有交替极性的多个驱动脉冲可以以相同的扫描方向施加到探针。