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41. 发明授权

US09232927B2 Method of reconstruction from multi-energy CT scan and device thereof 有权
标题翻译：多能CT扫描重建方法及其装置
公开(公告)号：US09232927B2
公开(公告)日：2016-01-12
申请号：US13974074
申请日：2013-08-23
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Shanshan Lou , Jiangwei Zhao , Lixia Tong
IPC分类号： A61B6/03 , A61B6/00 , G06T11/00
CPC分类号： A61B6/5205 , A61B6/032 , A61B6/583 , G06T11/006 , G06T2211/408
摘要： A method for collecting multi-energy CT data is provided. A method of reconstruction from multi-energy CT scan is further provided, in which data collection is performed on the first-class object at voltage values of m sampling points of the first-class voltage varied periodically, to obtain n sets of multi-energy first-class scan data {yi}; and a data collection is performed on a double-cylinder correction phantom at the voltage values of m sampling points to obtain combination coefficients, and thus obtaining corresponding combination coefficients Cifirstand Cisecondcorresponding to the case that the first-class scan data is collected in the ith projection angle at the first-class voltage; and the image vectors Xfirst and Xsecond are obtained by calculating a minimum value of the difference between the first-class scan data {yi} and the combination projection data CifirstPi*Xfirst+CisecondPi*Xsecond.
摘要翻译：提供了一种收集多能CT数据的方法。还提供了一种从多能CT扫描重建的方法，其中在第一类电压m个采样点的电压值周期性变化的电压值下对第一类物体进行数据采集，以获得n组多能量一级扫描数据{yi}; 并且在m个采样点的电压值下对双圆筒校正体模执行数据采集，以获得组合系数，从而获得对应于在第i个投影中收集第一类扫描数据的情况的相应组合系数Cifirst和Cisecond 角度处于一级电压; 并且通过计算一级扫描数据{yi}和组合投影数据CifirstPi * Xfirst + CisecondPi * Xsecond之间的差的最小值来获得图像矢量Xfirst和Xsecond。

42. 发明授权

US09220466B2 System and method for implementing warm-up scanning in CT device 有权
标题翻译：在CT装置中进行预热扫描的系统和方法
公开(公告)号：US09220466B2
公开(公告)日：2015-12-29
申请号：US14142959
申请日：2013-12-30
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Jinjun Liu , Qingxiang Shu
IPC分类号： A61B6/06 , G21K1/04 , A61B6/10 , A61B6/03 , A61B6/00
CPC分类号： A61B6/06 , A61B6/032 , A61B6/107 , A61B6/54 , G21K1/04
摘要： A system and a method for implementing warm-up scanning in a CT device are provided. The method includes: closing a slot of a beam limiter before a warm-up scanning process is initiated; implementing the warm-up scanning process to a CT radiation source; and opening the slot of the beam limiter after the warm-up scanning process is finished. The target object may not need to move during the warm-up scanning process. Therefore, a second time scout image scanning is no longer necessary and extra ionization radiation may be avoided.
摘要翻译：提供了一种用于在CT设备中实现预热扫描的系统和方法。该方法包括：在预热扫描过程开始之前关闭光束限制器的槽; 对CT辐射源实施预热扫描过程; 并在热身扫描过程结束后打开光束限制器的槽。在预热扫描过程中，目标对象可能不需要移动。因此，不再需要第二次侦察图像扫描，并且可以避免额外的电离辐射。

43. 发明授权

US09192339B2 Scanning system and image display method 有权
标题翻译：扫描系统和图像显示方法
公开(公告)号：US09192339B2
公开(公告)日：2015-11-24
申请号：US14142953
申请日：2013-12-30
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Shanshan Lou , Jian Zhao
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61B6/00 , A61B5/055 , A61B5/06 , A61B6/032 , A61B6/12 , A61B6/463
摘要： A scanning system and an image display method are provided, the method including: implementing a scanning process to obtain scanning data; converting the scanning data into image data; implementing an identification process and a segmentation process to the image data to obtain position and direction information of an interventional device; and calculating a first set of imaging parameters corresponding to a first image display mode based on the obtained position and direction information of the interventional device, and implementing real-time image display based on the first set of imaging parameters. Position and direction of interventional devices may be determined accurately. Further, multiple display modes are available, which may provide an accurate and full range image display.
摘要翻译：提供了扫描系统和图像显示方法，该方法包括：实现扫描处理以获得扫描数据; 将扫描数据转换为图像数据; 对图像数据实施识别处理和分割处理以获得介入装置的位置和方向信息; 以及基于获得的介入装置的位置和方向信息计算与第一图像显示模式相对应的第一组成像参数，以及基于第一组成像参数来实现实时图像显示。可以准确地确定介入装置的位置和方向。此外，可以提供多种显示模式，这可以提供精确和全范围的图像显示。

44. 发明申请

US20150104084A1 SCANNING SYSTEM AND IMAGE DISPLAY METHOD 有权
标题翻译：扫描系统和图像显示方法
公开(公告)号：US20150104084A1
公开(公告)日：2015-04-16
申请号：US14142953
申请日：2013-12-30
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Shanshan LOU , Jian Zhao
IPC分类号： G06K9/52 , G06T7/00
CPC分类号： A61B6/00 , A61B5/055 , A61B5/06 , A61B6/032 , A61B6/12 , A61B6/463
摘要： A scanning system and an image display method are provided, the method including: implementing a scanning process to obtain scanning data; converting the scanning data into image data; implementing an identification process and a segmentation process to the image data to obtain position and direction information of an interventional device; and calculating a first set of imaging parameters corresponding to a first image display mode based on the obtained position and direction information of the interventional device, and implementing real-time image display based on the first set of imaging parameters. Position and direction of interventional devices may be determined accurately. Further, multiple display modes are available, which may provide an accurate and full range image display.
摘要翻译：提供了扫描系统和图像显示方法，该方法包括：实现扫描处理以获得扫描数据; 将扫描数据转换为图像数据; 对图像数据实施识别处理和分割处理以获得介入装置的位置和方向信息; 以及基于获得的介入装置的位置和方向信息计算与第一图像显示模式相对应的第一组成像参数，以及基于第一组成像参数来实现实时图像显示。可以准确地确定介入装置的位置和方向。此外，可以提供多种显示模式，这可以提供精确和全范围的图像显示。

45. 发明申请

US20150071515A1 IMAGE RECONSTRUCTION METHOD AND DEVICE FOR TILTED HELICAL SCAN 有权
标题翻译：图像重建方法和倾斜螺旋扫描装置
公开(公告)号：US20150071515A1
公开(公告)日：2015-03-12
申请号：US14142957
申请日：2013-12-30
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Shanshan LOU , Jiangwei Zhao
IPC分类号： G06T11/00 , G06K9/46
CPC分类号： G06T11/008 , G06K9/46 , G06T11/006 , G06T2211/421
摘要： Image reconstruction method and device for tilted helical scan are provided. The method includes: acquiring data generated by the tilted helical scan; calculating a ray channel parameter and a slice number corresponding to each pixel position based on a geometric relationship that a ray of the tilted helical scan emitting from a ray source to a detector intersects with a pixel; and performing image reconstruction by using a three-dimensional helical back-projection method based on the acquired data, and the ray channel parameter and the slice number corresponding to each pixel position. With the method and device, there is no need to correct the raw data, which ensures the accuracy of the data, and the artifact is avoided, which ensures the accuracy of the reconstructed image.
摘要翻译：提供了用于倾斜螺旋扫描的图像重建方法和装置。该方法包括：获取由倾斜螺旋扫描产生的数据; 基于从射线源到检测器发射的倾斜螺旋扫描的射线与像素相交的几何关系来计算对应于每个像素位置的射线通道参数和切片数; 并且通过使用基于所获取的数据的三维螺旋反投影方法以及对应于每个像素位置的射线通道参数和切片数来执行图像重建。通过该方法和装置，无需校正原始数据，保证了数据的准确性，避免了伪像，保证了重建图像的准确性。

46. 发明申请

US20080025589A1 Image measuring apparatus and method, and image measuring system for glomerular filtration rate 有权
标题翻译：图像测量装置和方法，以及用于肾小球滤过率的图像测量系统
公开(公告)号：US20080025589A1
公开(公告)日：2008-01-31
申请号：US11636475
申请日：2006-12-11
申请人： Hongfeng Ma , Qiang Di , Lei Wu , Honglei Fu , Longwei Mei , Liang Tian , Songmin Quan , Jun Zhang , Yan Kang
发明人： Hongfeng Ma , Qiang Di , Lei Wu , Honglei Fu , Longwei Mei , Liang Tian , Songmin Quan , Jun Zhang , Yan Kang
IPC分类号： G06K9/00
CPC分类号： G06K9/34 , A61B6/50 , G06K2209/05 , G06T7/0012 , G06T7/11 , G06T2207/10081 , G06T2207/30084
摘要： The present invention discloses an abdominal CT image measuring apparatus and method. The abdominal CT image measuring apparatus includes: an interface unit; a part recognizing unit and a characteristic data computing unit. The present invention can determine the specific region of the part under test with a little amount of computation, by registration and subtraction operation on the two-phase scan images. This is easy to be carried out in computers, thus the computing speed of the characteristic data can be guaranteed and the efficiency can be improved. By the recognizing of the kidney regions and the abdominal aorta region in the present invention, the glomerular filtration rates obtained by applying the key concept of the present invention to the image measuring of glomerular filtration rate can meet the clinical application requirements in both precision and speed.
摘要翻译：本发明公开了一种腹部CT图像测量装置及方法。腹部CT图像测量装置包括：接口单元; 部件识别单元和特征数据计算单元。本发明可以通过对两相扫描图像进行配准和减法操作，通过少量的计算来确定待测零件的特定区域。这在计算机中很容易实现，因此可以保证特征数据的计算速度并提高效率。通过本发明的肾脏区域和腹主动脉区域的识别，通过将本发明的关键概念应用于肾小球滤过率的图像测定而获得的肾小球滤过率可以满足临床应用的精度和速度要求。

47. 发明授权

US10524744B2 Method and apparatus for collecting data 有权
公开(公告)号：US10524744B2
公开(公告)日：2020-01-07
申请号：US15960237
申请日：2018-04-23
申请人： SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.
发明人： Xiaoqing Hu
IPC分类号： A61B6/00 , A61B6/03 , G01N23/046 , G01T1/16 , H03M1/12 , H04N5/32
摘要： An apparatus for collecting data is provided. According to an example, the apparatus for collection data may include: n number of detector arrays, n number of DAS circuits and a back-end processor. Each of the DAS circuits may include an analog-to-digital converter and a front-end processor coupled with the analog-to-digital converter. Each of front-end processors is coupled with the back-end processor via an independent transmission line. For each of the detector arrays, the detector array may be configured to output analog signals based on detected scanning rays penetrating through a subject. The analog-to-digital converter may be configured to perform an analog-to-digital conversion on the analog signals to generate raw data. The front-end processor may be configured to logarithmically compress the raw data and transmit the logarithmically-compressed raw data to the back-end processor via the transmission line.

48. 发明授权

US10460480B2 Reconstructing PET image 有权
公开(公告)号：US10460480B2
公开(公告)日：2019-10-29
申请号：US15819334
申请日：2017-11-21
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Yue Liu , Zhipeng Sun , Ming Li
IPC分类号： G06T11/00 , A61B6/03 , G06T7/00 , A61B6/00
摘要： Methods, devices, and systems for reconstructing Positron Emission Computed Tomography (PET) images are provided. In one aspect, a method includes: for each of coincidence events including at least one true coincidence event and at least one scattering coincidence event, determining an emission path of the coincidence event according to photon information of the coincidence event, the photon information of the coincidence event including time data, position data, and angle data of each of two photons involved in the coincidence event, determining an annihilation position of the coincidence event according to the emission path of the coincidence event and the time data of each of the two photons involved in the coincidence event, and reconstructing a PET image according to the annihilation position, the emission path and the photon information of each of the coincidence events.

49. 发明授权

US10330802B2 Determining a pair of compliance events 有权
公开(公告)号：US10330802B2
公开(公告)日：2019-06-25
申请号：US15275157
申请日：2016-09-23
申请人： SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.
发明人： Zhuxia Yin , Zhiguo Wang , Guoxu Zhang , Guodong Liang , Long Yang
IPC分类号： G01T1/29 , G06F7/24 , G06F7/36
摘要： A method for determining a pair of compliance events is provided. A set of event data collected by a PET detector may be divided into N sub-sets, and each of the N sub-sets of event data may be sorted according to an occurrence time of each event included in the event data, wherein N is an integer greater than or equal to 2. A K stage heapsort may be performed on the sorted N sub-sets of event data according to the occurrence time of each event, so as to sequentially output data of each event in the sorting order, wherein K is an integer greater than or equal to 1. A time compliance determination and a space compliance determination may be performed on the sequentially-outputted event data, and a pair of compliance events may be determined if both the time compliance determination and the space compliance determination are passed.

50. 发明授权

US10330751B2 Determining position of radio frequency coil in magnetic resonance imaging system 有权
公开(公告)号：US10330751B2
公开(公告)日：2019-06-25
申请号：US15282921
申请日：2016-09-30
申请人： SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.
发明人： Huidong Gu , Hongbing Hu , Jianhua Shi , Haobo Jin , Hui Li , Yunhan Li
IPC分类号： G01V3/00 , G01R33/341 , G01R33/30 , G01R33/36 , G01R33/54 , G01R33/3415
摘要： A method for determining a position of an RF coil in a magnetic resonance imaging (MRI) system is disclosed. As an example, a center of a field of view (FOV) to be scanned may be adjusted to a magnetic field center of an MRI system, and coordinate values in a coordinate system for shape-characteristic points of the FOV may be determined, where an origin of the coordinate system is located at the magnetic field center of the MRI system. A preset gradient magnetic field may be applied to the FOV, and coil units respectively covering the shape-characteristic points may be determined. An effective region may be obtained by connecting the determined coil units according to the shape of the FOV, and a coil unit located in the effective region may be determined as an effective coil unit for imaging the FOV by the MRI system.

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