-
公开(公告)号：US20090310847A1
公开(公告)日：2009-12-17
申请号：US12547518
申请日：2009-08-26
IPC分类号： G06K9/00
摘要： A medical image processing apparatus includes an image storage unit which stores the data of a three-dimensional image associated with an object receiving an operation using a lumen insertion device, a lumen detection unit which detects a lumen centerline associated with a specific lumen from the three-dimensional image, a current position specifying unit which specifies the current position of the lumen insertion device based on the insertion distance from a reference position associated with the lumen insertion device and the detected lumen centerline, a cross-sectional image generating unit which creates, from the data of the three-dimensional image, the data of a cross-sectional image associated with a cross-section passing through at least one of the current position and an expected insertion position located ahead of the current position, and a display unit which displays the generated data of the cross-sectional image.
摘要翻译： 一种医用图像处理装置，包括：图像存储部，存储与使用管腔插入装置的动作接收的对象相关联的三维图像的数据;流明检测部，其从三个检测与特定管腔相关联的管腔中心线 当前位置确定单元，其基于从与所述管腔插入装置相关联的基准位置和所检测的管腔中心线的插入距离来指定所述管腔插入装置的当前位置;横截面图像生成单元， 根据三维图像的数据，与通过当前位置和位于当前位置前方的预期插入位置中的至少一个的横截面相关联的横截面图像的数据，以及显示单元， 显示生成的横截面图像的数据。
-
2.发明授权X-ray diagnostic apparatus using an X-ray flat panel detector and method for controlling the X-ray diagnostic apparatus 有权使用X射线平板检测器的X射线诊断装置和X射线诊断装置的控制方法公开(公告)号：US06222906B1
公开(公告)日：2001-04-24
申请号：US09238914
申请日：1999-01-28
IPC分类号： A61B600
CPC分类号： A61B6/4441 , A61B6/06 , A61B6/12 , A61B6/4225 , A61B6/4233 , A61B6/469 , A61B6/481 , A61B6/504 , A61B6/563 , A61B6/588 , H01L27/14609 , H01L27/14663 , H04N5/32
摘要： Pixel data in a region of a flat panel detector is obtained and displayed. For example, pixel data in a region irradiated with X-ray is obtained and displayed. The region to be irradiated with-the X-ray is estimated according to a degree of opening of an X-ray beam limiting device and a distance between the X-ray beam limiting device and the flat panel detector. Further, it can be determined from pixel data value of the flat panel detector also. A region of a patient can be also determined from the pixel data. Thus, an image corresponding to the entire flat panel detector, an image corresponding to an X-ray irradiation region and an image corresponding to a patient region can be displayed. A resolution for obtaining the pixel data is changed corresponding to the size of a region in the flat panel detector whose pixel data should be obtained and a processing resolution of an image processing means at post step. Particularly in an X-ray diagnostic apparatus of bi-plane structure, an observation region can be traced flexibly.
摘要翻译： 获得并显示平板检测器的区域中的像素数据。 例如，获得并显示用X射线照射的区域中的像素数据。 根据X射线束限制装置的开度和X射线束限制装置与平板检测器之间的距离来估计要用X射线照射的区域。 此外，也可以从平板检测器的像素数据值确定。 还可以从像素数据确定患者的区域。 因此，可以显示对应于整个平板检测器的图像，对应于X射线照射区域的图像和与患者区域相对应的图像。 用于获得像素数据的分辨率相应于应获得像素数据的平板检测器中的区域的大小和后级步骤中的图像处理装置的处理分辨率而改变。 特别是在双平面结构的X射线诊断装置中，可以灵活地追踪观察区域。
-
公开(公告)号：US20100142792A1
公开(公告)日：2010-06-10
申请号：US12629351
申请日：2009-12-02
IPC分类号： G06K9/62
CPC分类号： A61B6/03 , A61B6/00 , G06T5/002 , G06T5/20 , G06T5/50 , G06T7/73 , G06T2207/10016 , G06T2207/10116 , G06T2207/30048 , G06T2207/30052 , G06T2207/30101
摘要： When a plurality of X-ray images in a time sequence is stored in an image data storing unit (25), a marker coordinate detecting unit (26a) detects coordinates of a stent marker in each X-ray image, and a motion vector calculating unit (26b) calculates, with coordinates of the stent marker detected in a first frame as reference coordinates, a motion vector of the coordinates of the stent marker detected in each X-ray image of a second and subsequent frames with respect to the reference coordinates. Then, a filter application range determining unit (26c) moves and determines an application range of a smoothing filter in each X-ray image based on the motion vector, and the filtered image generating unit (26d) generates a filtered image by performing a process by the smoothing filter between application ranges determined in a process target image and a reference image.
摘要翻译： 当时间序列中的多个X射线图像被存储在图像数据存储单元（25）中时，标记坐标检测单元（26a）检测每个X射线图像中的支架标记的坐标，并且计算运动矢量 单元（26b）以第一帧中检测到的支架标记的坐标作为参考坐标，计算在相对于参考坐标的第二帧和后续帧的每个X射线图像中检测到的支架标记的坐标的运动矢量 。 然后，滤波器应用范围确定单元（26c）基于运动矢量移动并确定每个X射线图像中的平滑滤波器的应用范围，并且滤波图像生成单元（26d）通过执行处理来生成滤波图像 通过在处理目标图像中确定的应用范围和参考图像之间的平滑滤波器。
-
4.发明授权Radiation detector, radiation detecting method and X-ray diagnosing apparatus with same radiation detector 有权辐射检测器，放射线检测方法和具有相同辐射探测器的X射线诊断装置
公开(公告)号：US6163029A
公开(公告)日：2000-12-19
申请号：US158285
申请日：1998-09-22
CPC分类号： G01T1/2018 , G01T1/247
摘要： According to information input through a keyboard, an X-ray irradiation condition selecting portion selects an X-ray irradiation condition, retrieves a correspondence table according to this X-ray irradiation condition so as to read out a gain control state suitable for an irradiation condition, and drives an analog SW setting portion. According to a signal from the analog SW setting portion, an integration capacity of an initial stage integration amplifier is changed over. Further, according to other mode, accumulated electric charge Q of a picture element Cp is read out on a signal line and converted to a voltage Vo by the integration amplifier. By appropriately determining a sampling time by a sample/hold circuit after electric charge is read out, an influence of a switching element resistance can be excluded from a voltage Vx. Therefore, the voltage Vx can be sample held stably. Further, because the integration circuit has a characteristic of damping a high frequency noise generated in the integration amplifier, the S/N ratio of the voltage Vx can be improved.
摘要翻译： 根据通过键盘输入的信息，X射线照射条件选择部分选择X射线照射条件，根据该X射线照射条件检索对应表，以读出适合于照射条件的增益控制状态 ，并驱动模拟SW设置部分。 根据来自模拟开关设定部的信号，转换初级积分放大器的积分能力。 此外，根据其他模式，在信号线上读出图像元素Cp的累积电荷Q，并通过积分放大器转换为电压Vo。 通过在读取电荷后适当地确定采样/保持电路的采样时间，可以从电压Vx中排除开关元件电阻的影响。 因此，可以将电压Vx稳定地取样。 此外，由于积分电路具有抑制积分放大器中产生的高频噪声的特性，因此可以提高电压Vx的S / N比。
-
公开(公告)号：US08675946B2
公开(公告)日：2014-03-18
申请号：US12629351
申请日：2009-12-02
IPC分类号： A61B6/03
CPC分类号： A61B6/03 , A61B6/00 , G06T5/002 , G06T5/20 , G06T5/50 , G06T7/73 , G06T2207/10016 , G06T2207/10116 , G06T2207/30048 , G06T2207/30052 , G06T2207/30101
摘要： When a plurality of X-ray images in a time sequence is stored in an image data storing unit (25), a marker coordinate detecting unit (26a) detects coordinates of a stent marker in each X-ray image, and a motion vector calculating unit (26b) calculates, with coordinates of the stent marker detected in a first frame as reference coordinates, a motion vector of the coordinates of the stent marker detected in each X-ray image of a second and subsequent frames with respect to the reference coordinates. Then, a filter application range determining unit (26c) moves and determines an application range of a smoothing filter in each X-ray image based on the motion vector, and the filtered image generating unit (26d) generates a filtered image by performing a process by the smoothing filter between application ranges determined in a process target image and a reference image.
摘要翻译： 当时间序列中的多个X射线图像被存储在图像数据存储单元（25）中时，标记坐标检测单元（26a）检测每个X射线图像中的支架标记的坐标，并且计算运动矢量 单元（26b）以第一帧中检测到的支架标记的坐标作为参考坐标，计算在相对于参考坐标的第二帧和后续帧的每个X射线图像中检测到的支架标记的坐标的运动矢量 。 然后，滤波器应用范围确定单元（26c）基于运动矢量移动并确定每个X射线图像中的平滑滤波器的应用范围，并且滤波图像生成单元（26d）通过执行处理来生成滤波图像 通过在处理目标图像中确定的应用范围和参考图像之间的平滑滤波器。
-
公开(公告)号：US4901336A
公开(公告)日：1990-02-13
申请号：US286151
申请日：1988-12-19
申请人： Masayuki Nishiki
发明人： Masayuki Nishiki
IPC分类号： H05G1/64 , A61B6/00 , A61B6/03 , H04N5/32 , H04N5/335 , H04N5/341 , H04N5/353 , H04N5/361 , H04N5/3725 , H04N5/378 , H05G1/44 , H05G1/60
摘要： An X-ray radiographic apparatus including a solid-state image sensor having a photoelectric conversion member and a transfer member. A system controller stops supplying field shift pulses, and a electric charge is not transferred from the photoelectric conversion member to the transfer member, during X-ray irradiation until a quantity of X-rays reaches predetermined value. One frame image data from the solid-state image sensor just after X-ray irradiating term is obtained. It is easy to obtain data corresponding to one frame image which is of proper density. The electric signal is read from the transfer member while the system controller has stopped the supplying of field shift pulses. It is possible to suppress an increase of dark current noise, and obtain high quality X-ray image data.
摘要翻译： 一种X射线摄影装置，包括具有光电转换部件和转印部件的固体摄像元件。 系统控制器在X射线照射期间停止提供场偏移脉冲，并且电荷不会从光电转换构件转移到转印构件，直到X射线量达到预定值。 获得刚刚在X射线照射项之后的固态图像传感器的一帧图像数据。 很容易获得对应于具有适当密度的一帧图像的数据。 当系统控制器停止提供场偏移脉冲时，从传送部件读取电信号。 可以抑制暗电流噪声的增加，并获得高质量的X射线图像数据。
-
7.发明申请ULTRASONIC DIAGNOSIS APPARATUS, BREAST IMAGING SYSTEM, AND BREAST IMAGING METHOD 审中-公开超声诊断装置，乳腺成像系统和乳腺成像方法公开(公告)号：US20080249415A1
公开(公告)日：2008-10-09
申请号：US12060679
申请日：2008-04-01
申请人： Yoko Okamura , Naohisa Kamiyama , Atsuko Sugiyama , Hitoshi Yamagata , Masayuki Nishiki , Naoko Kuratomi , Yasutsugu Seo
发明人： Yoko Okamura , Naohisa Kamiyama , Atsuko Sugiyama , Hitoshi Yamagata , Masayuki Nishiki , Naoko Kuratomi , Yasutsugu Seo
CPC分类号： A61B8/0825 , A61B6/0414 , A61B6/4417 , A61B6/502 , A61B6/5247 , A61B8/403 , A61B8/4405 , A61B8/4416 , A61B8/483 , A61B8/5207
摘要： A compression paddle of a mammographic diagnosis apparatus is provided with an opening portion which allows an ultrasonic probe to be fitted therein and slide. This apparatus performs ultrasonic scanning on a breast compressed/fixed to the compression paddle, and reconstructs a compressed breast image by using the obtained ultrasonic image as a virtual image, thereby acquiring an ultrasonic image and volume data of the compressed/fixed breast.
摘要翻译： 乳房X线照相诊断装置的压缩叶片设置有允许超声波探头安装在其中并滑动的开口部分。 该装置对压缩/固定在压缩桨上的乳房进行超声波扫描，通过使用所获得的超声波图像作为虚像，重建压缩的乳房图像，从而获取压缩/固定乳房的超声图像和体积数据。
-
8.发明申请X-RAY DIAGNOSTIC APPARATUS, IMAGE PROCESSING APPARATUS, AND METHOD OF CALCULATING FILTER COEFFICIENTS USED FOR IMAGE FORMATION PROCESSING IN X-RAY DIAGNOSTIC APPARATUS AND THE LIKE 有权X射线诊断装置，图像处理装置和计算用于X射线诊断装置中的图像形成处理的滤波器系数的方法公开(公告)号：US20080095420A1
公开(公告)日：2008-04-24
申请号：US11869330
申请日：2007-10-09
CPC分类号： A61B6/025 , A61B6/502 , G06T11/006 , G06T2211/421
摘要： A tomosynthesis image is generated by applying preprocessing to each image obtained by capturing a plurality of X-ray images at a plurality of X-ray tube positions and then performing filtering processing and backprojection. At this time, a proper filter coefficient used filtering is determined for each scan track, each image frame, and each pixel position in an image.
摘要翻译： 通过对通过在多个X射线管位置捕获多个X射线图像而获得的每个图像应用预处理，然后执行滤波处理和反投影，生成断层合成图像。 此时，针对每个扫描轨迹，每个图像帧以及图像中的每个像素位置确定使用滤波系数的滤波系数。
-
公开(公告)号：US5345938A
公开(公告)日：1994-09-13
申请号：US952914
申请日：1992-09-28
申请人： Masayuki Nishiki , Shigemi Fujiwara , Mikihito Hayashi , Akira Tsukamoto , Kinya Takamizawa , Masayuki Takano , Seiichiro Nagai
发明人： Masayuki Nishiki , Shigemi Fujiwara , Mikihito Hayashi , Akira Tsukamoto , Kinya Takamizawa , Masayuki Takano , Seiichiro Nagai
CPC分类号： A61B8/5238 , A61B6/481 , A61B6/504 , A61B6/507 , A61B6/5247 , A61B8/12 , A61B8/445 , A61B8/4461 , G01S15/899 , G06F19/3406 , G06F19/3487 , G06F19/321 , G06F19/3456
摘要： A diagnostic apparatus for diagnosing the circulatory system of a patient, including an X-ray diagnostic system and an ultrasonic diagnostic system. The ultrasonic diagnostic system has an ultrasonic catheter for insertion into the circulatory systems of the patient and for scanning a circulatory organ with an ultrasonic wave to thereby an ultrasonic tomogram. A roadmap image is obtained prior to the ultrasonic diagnosis. When the ultrasonic catheter is inserted into the circulatory system of the patient, the X-ray diagnosis is performed to obtain a live image of the circulatory system which includes a picture of the catheter and is displayed overlapped on the roadmap image. The ultrasonic catheter is inserted into the circulatory system of the patient while the location of the catheter is monitored from the overlapped display of the live image and the roadmap image.
摘要翻译： 一种用于诊断患者的循环系统的诊断装置，包括X射线诊断系统和超声诊断系统。 超声波诊断系统具有用于插入患者的循环系统中的超声波导管和用超声波扫描循环器官，从而进行超声波断层图像。 在超声诊断之前获得路线图图像。 当将超声波导管插入到患者的循环系统中时，执行X射线诊断以获得循环系统的实时图像，该循环系统包括导管的图像并且重叠地显示在路线图上。 超声波导管被插入患者的循环系统中，同时从实时图像和路线图图像的重叠显示监视导管的位置。
-
公开(公告)号：US5101421A
公开(公告)日：1992-03-31
申请号：US620641
申请日：1990-12-03
申请人： Masayuki Nishiki
发明人： Masayuki Nishiki
摘要： An X-ray imaging apparatus comprises an X-ray generator, an image intensifier for converting an X-ray image of a subject under examination to an optical image, a solid state image sensor for picking up the optical image of the image intensifier, a driver circuit for driving the solid state image sensor and a television monitor for visually displaying an image signal obtained from the solid state image sensor as an X-ray optical image. The X-ray generator is controlled such that an X-ray pulse is not emitted during an interval in which the solid state image sensor transfers charges from image sensing sections to charge storage sections.
摘要翻译： 一种X射线成像装置，包括：X射线发生器，用于将检查对象的X射线图像转换为光学图像的图像增强器;用于拾取图像增强器的光学图像的固态图像传感器; 用于驱动固态图像传感器的驱动电路和用于可视地显示从固态图像传感器获得的图像信号的电视监视器作为X射线光学图像。 控制X射线发生器，使得在固态图像传感器将电荷从图像感测部分转移到电荷存储部分的间隔期间不发射X射线脉冲。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.024 秒)
