子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | DETERMINATION OF RESULT DATA ON THE BASIS OF MEDICAL MEASUREMENT DATA FROM VARIOUS MEASUREMENTS | US15672347 | 2017-08-09 | US20180061077A1 | 2018-03-01 | Robert GRIMM; Bernd SCHWEIZER |
| A method is disclosed for determining result data based upon medical measurement data of an examination object. Within the method, a high-dimensional first parameter space is formed, in which measurement values of the various measurements are represented with the aid of value tuples. The measurement values of the various measurements are assigned to a value tuple based on their spatial arrangement in the examination object and/or on their temporal arrangement relative to one another. In the first parameter space, the value tuples are analyzed, using at least one mapping function to at least one further parameter space including a lower dimension than the first parameter space, in order to obtain result data. Furthermore, the result data is output, preferably visualized. In addition, a corresponding device for determining result ata is described. | ||||||
| 182 | AUTOMATED SCAN PLANNING FOR FOLLOW-UP MAGNETIC RESONANCE IMAGING | US15547083 | 2016-01-15 | US20180025466A1 | 2018-01-25 | PETER MAZURKEWITZ; JULIEN SENEGAS; DANIEL BYSTROV |
| The invention provides for a mri system (100) for acquiring magnetic resonance data (158, 168) from a subject. The execution of machine-executable instructions (180, 182, 184, 186, 188) causes a processor (144) to: receive (300) a baseline medical image (152) data descriptive of one or more internal structures (126) of the subject; receive (302) a baseline scan geometry (154); acquire (304) survey magnetic resonance data (158) from the subject by controlling the magnetic resonance imaging system with survey pulse sequence data, wherein the survey pulse sequence data comprises instructions for controlling the magnetic resonance imaging system to acquire magnetic resonance data descriptive of a three-dimensional volume (124) of the subject; reconstruct (306) the survey magnetic resonance data into a three-dimensional survey image (160); calculate (308) location data by processing the three dimensional survey image with an organ detection algorithm (182), wherein the location data is descriptive of a target region (128); assign (310) a predefined region of interest (130) to the three dimensional survey image using the location data; calculate (312) registration data (164) by registering the baseline medical image to the three dimensional survey image. | ||||||
| 183 | INTEGRATED METHOD FOR THREE-DIMENSIONAL VISUALIZATION RECONSTRUCTION OF THE FASCICULAR STRUCTURE INSIDE HUMAN PERIPHERAL NERVES | US15623363 | 2017-06-14 | US20180018816A1 | 2018-01-18 | Liwei Yan; Shuang Zhu; Xiaolin Liu; Jian Qi; Qingtang Zhu; Yao Lu; Yongze Guo; Sha Yu; Yutong Lu; Xi Zhang; Yunfei Du; Tao Lin |
| The present invention relates to fields of clinical application of nerve defect repair and the medical three-dimensional (3D) printing technology, and provides an integrated visualization method for three-dimensional (3D) reconstruction of internal structure of human peripheral nerves. The method comprises the following steps: obtaining human peripheral nerves, preparing nerve specimens ex vivo by staining with an iodine preparation in combination with a freeze-drying method; scanning the pretreated peripheral nerves using Micro CT to acquire lossless two-dimensional images, and performing binarization processing to the two-dimensional images, then conducting image segmentation based on textural features to acquire images of nerve fascicles; finally, reconstructing the segmented images into a visualization model by using a supercomputer. | ||||||
| 184 | Medical image processing apparatus, X-ray computerized tomography apparatus, and medical image processing method | US14525301 | 2014-10-28 | US09846947B2 | 2017-12-19 | Megumu Fujiwara |
| A medical image processing apparatus according to the present invention includes a moving direction identification unit configured to identify a moving direction of an observed region of a subject depicted in a plurality of volume data collected by a medical diagnostic apparatus, each volume data of the plurality of volume data being collected for each time phase; and a display direction setting unit configured to set a display direction of the plurality of volume data based on the identified moving direction. | ||||||
| 185 | Shape data generation method and apparatus | US14602829 | 2015-01-22 | US09836891B2 | 2017-12-05 | Kohei Hatanaka; Toshiaki Hisada; Seiryo Sugiura; Takumi Washio; Jun-ichi Okada |
| A shape data generation method includes: generating a target shape of transformation from plural tomographic images of an object; specifying, from among plural vertices of a first shape that is a reference shape of the object, plural first vertices, each first vertex of which satisfies a condition that a normal line of the first vertex passes through a point that is located on the target shape and is located on a boundary of the object in any one of the plural tomographic images; identifying, for each of the plural first vertices, a second vertex that internally divides a segment between the first vertex and the point; transforming the first shape so as to put each of the plural first vertices on a corresponding second vertex; setting a shape after the transforming to the first shape; and executing the first specifying and the subsequent processings a predetermined number of times. | ||||||
| 186 | Method for generating a combined projection image and imaging device | US14490917 | 2014-09-19 | US09836858B2 | 2017-12-05 | Shiras Abdurahman; Anna Jerebko; Michael Kelm |
| A method for generating a combined projection image from a medical inspection object, includes steps of capturing a set of initial projection images; reconstructing a first and a second three-dimensional volume from the set of initial projection images; generating a first re-projection image from the first three-dimensional volume and a second re-projection image from the second three-dimensional volume; weighting the first re-projection image and the second re-projection image; and combining the weighted first re-projection image and second re-projection image for generating the combined projection image. | ||||||
| 187 | Computer visualization of anatomical items | US14459129 | 2014-08-13 | US09818231B2 | 2017-11-14 | Dane Coffey; Daniel F. Keefe; Arthur G. Erdman; Benjamin J. Bidne; Gregory Ernest Ostenson; David M. Flynn; Kenneth Matthew Merdan |
| A computer-implemented medical visualization method includes identifying a three-dimensional model of an anatomical item of a particular mammal; automatically identifying an open path in three-dimensional space through the anatomical item; fitting a smooth curve to the open path; and displaying the anatomical item and a visual representation of the smooth curve to a user on a three-dimensional imaging system. | ||||||
| 188 | Method and medical imaging system for compensating for image artifacts in medical imaging | US15071434 | 2016-03-16 | US09818207B2 | 2017-11-14 | Dirk Ertel; Yiannis Kyriakou |
| A method compensates for image artifacts in a first imaging device for imaging a first subregion of a body. The image artifacts are caused by a second subregion of the body being disposed outside of a first field of view for the first device. First measured data for the first field of view is acquired by the first device. The first subregion lies in the first field of view. Second measured data are acquired for a second field of view in a second imaging device. Image data representing the subregions in the second device are calculated from the second measured data. A model representing the subregions is calibrated using the calculated image data. The data representing the second subregion in the first device are simulated using a calibrated model. A correction of the first measured data is performed using simulated data for reducing the image artifacts. | ||||||
| 189 | METHOD AND APPARATUS FOR DEPICTION OF MEDICAL IMAGE DATA | US15479562 | 2017-04-05 | US20170294035A1 | 2017-10-12 | Christian Hofmann; Nora Huenemohr; Javier Pena |
| In a method and medical imaging apparatus for depiction of medical imaging data, medical imaging data of the examination object are acquired over a period of time, and an artifact parameter is established, which characterizes artifacts that occur as a result of breathing of the examination object during the period of time. The medical imaging data are displayed on a display screen together with a depiction of the artifact parameter. | ||||||
| 190 | X-ray computed tomography apparatus and medical image processing apparatus | US14789243 | 2015-07-01 | US09747704B2 | 2017-08-29 | Hiroki Taguchi; Satoru Nakanishi |
| An X-ray computed tomography apparatus according to embodiments includes image processing circuitry and decomposition circuitry. The image processing circuitry is configured to perform an image processing on each of a plurality of pieces of monochromatic X-ray image data of different energies, the plurality of pieces of monochromatic X-ray image data being generated from projection data. The decomposition circuitry is configured to decompose, for each of a plurality of basis materials specified in advance, the plurality of pieces of monochromatic X-ray image data after the image processing, to generate basis material image data of each of the plurality of basis materials. | ||||||
| 191 | CT systems and methods thereof | US14576737 | 2014-12-19 | US09746579B2 | 2017-08-29 | Li Zhang; Zhiqiang Chen; Qingping Huang; Xin Jin; Yunda Sun; Le Shen; Ji Zhao |
| A CT system and method thereof are disclosed. The system includes: a conveyor mechanism; a first scanning stage configured to scan the object and generate a first digital signal; a second scanning stage spaced from the first scanning stage at a preset distance in a direction of the object's movement; a processing device configured to reconstruct a CT image of the object at a first image quality based on the first digital signal, and analyze the CT image; and a control device configured to adjust a scanning parameter of the second scanning stage based on an analysis result of the processing device to cause the second scanning stage to output a second digital signal. The processing device reconstructs a CT image of the object at a second image quality higher than the first image quality at least based on the second digital signal. The system takes full advantage of the distributed ray sources which replace the normal slip ring technology. | ||||||
| 192 | Medical image processing apparatus and medical image processing method | US14875112 | 2015-10-05 | US09730666B2 | 2017-08-15 | Hitoshi Yamagata; Yoshiharu Ohno |
| According to one embodiment, a medical image processing apparatus includes an image storage memory, a calculation circuitry, a level decision circuitry, and an output interface circuitry. The image storage memory stores data of a plurality of images in different respiratory phases. The calculation circuitry calculates a motion amount of a region between the plurality of images for each pixel or area. The level decision circuitry decides a level concerning a severity of chronic obstructive pulmonary disease for each pixel or area. The output interface circuitry outputs information concerning the decided level. | ||||||
| 193 | SYSTEM AND METHOD FOR REGULARIZED RECONSTRUCTION OF PHASE CONTRAST COMPUTERIZED TOMOGRAPHY | US15004293 | 2016-01-22 | US20170213364A1 | 2017-07-27 | Jonathan Immanuel SPERL; Dirk BEQUE |
| Reconstructing under-sampled PCT data includes obtaining under-sampled scan data of a subject-under-test, the object scan performed on a phase contrast computed tomography (PCT) system, performing a regularized Fourier analysis on the under-sampled scan data, correcting for one or more PCT system contributions to the under-sampled scan data by dividing the computed Fourier coefficients by Fourier coefficients representative of the one or more PCT system contributions, obtaining at least one of an absorption sinogram, a differential phase sinogram, and a dark field sinogram from the corrected Fourier coefficients, and performing tomographic reconstruction on the obtained absorption sinogram, the obtained differential phase sinogram, and the obtained dark field sinogram. A system and non-transitory computer readable medium are also disclosed. | ||||||
| 194 | Method and apparatus for large field of view imaging and detection and compensation of motion artifacts | US14856713 | 2015-09-17 | US09710936B2 | 2017-07-18 | Colas Schretter; Matthias Bertram; Christoph Neukirchen |
| A method and apparatus are provided to improve large field of view CT image acquisition by using at least two scanning procedures: (i) one with the radiation source and detector centered and (ii) one in an offset configuration. The imaging data obtained from both of the scanning procedures is used in the reconstruction of the image. In addition, a method and apparatus are provided for detecting motion in a reconstructed image by generating a motion map that is indicative of the regions of the reconstructed image that are affected by motion artifacts. Optionally, the motion map may be used for motion estimation and/or motion compensation to prevent or diminish motion artifacts in the resulting reconstructed image. An optional method for generating a refined motion map is also provided. | ||||||
| 195 | Method and apparatus to generate image data | US14244049 | 2014-04-03 | US09626777B2 | 2017-04-18 | Christoph Forman |
| In a method and apparatus for the generation of image data of a moving subject inside a body, raw data are initially acquired for a region encompassing the subject at different measurement points in time, and position overview data for the different measurement points in time are generated on the basis of at least a portion of the raw data. A scattering of the position overview data is then determined, which scattering is dependent on the measurement point in time. Spatial test regions within the position overview data are selected depending on the scattering. Trust parameter values are determined for the individual test regions, and a reconstruction of image data then takes place on the basis of the raw data under consideration of the trust parameter values of the different test regions. | ||||||
| 196 | Image Construction With Multiple Clustering Realizations | US15269005 | 2016-09-19 | US20170084060A1 | 2017-03-23 | Harshali Bal; Vladimir Y. Panin; Michael E. Casey |
| A method includes overlaying a grid on a set of dynamic PET, SPECT, CT or MR data, so as to define a set of voxels defining a plurality of cluster seeds; extracting a respective time activity curve (TAC) for dynamic PET or SPECT data or time varying signals in the case of dynamic CT or MR data, for each voxel based on the data; selecting a subset of the cluster seeds defined by the grid as initial cluster centroids of a set of clusters; assigning each TAC to a respective cluster in the set of clusters; computing a respective average TAC of each cluster; generating a parametric image based on the respective average TACs for the clusters; repeating the overlaying, determining, selecting, assigning, computing, and generating; and averaging the generated parametric images. | ||||||
| 197 | Method for processing a volume model, related computer program product and processing system | US14580773 | 2014-12-23 | US09582925B2 | 2017-02-28 | Pierre Durand; Etienne Labyt |
| This processing method provides the ability to process a volume mode with an object intended to be added to or subtracted from said model. The volume model includes points arranged according to a spatial grid in a first reference system, each point being assigned an intensity value. The object has points positioned in a second reference system that is distinct from the first reference system.The method includes the calculation, for each point of the object, of an image point in the first reference system using a transfer function.The method further includes the modification of the intensity of points of the volume model by applying a correction function associated with each image point, the value of the correction function at a point of the volume model being dependent on the position of said point relative to said image point with which said correction function is associated. | ||||||
| 198 | Imaging apparatus for diagnosis, information processing apparatus, control method thereof, program and computer-readable storage medium | US14806119 | 2015-07-22 | US09572496B2 | 2017-02-21 | Junya Furuichi; Kouichi Inoue; Hijiri Etou |
| An imaging apparatus for diagnosis and a control method of an imaging apparatus for diagnosis are disclosed, which acquire line data represented by multiple luminance values in a radial direction from a rotation center position of an imaging core, which are derived by a rotation position and movement of the imaging core. Then, based on the acquired line data, an image of a two-dimensional space in which θ representing a rotation angle and z representing a position in a movement direction are set to two axes is generated and displayed. | ||||||
| 199 | Radiation image pick-up device and image processing method | US14383291 | 2013-01-25 | US09526467B2 | 2016-12-27 | Rika Baba |
| Irrespective of the layout, moving path, and moving range of the X-ray source and the detector, a highly precise image is acquired, in a similar manner as an X-ray CT scanner that is capable of acquiring a measured image using a rotation angle of 180 degrees or more. A measured image detected by the detector is converted into a rotationally measured image that is acquired by rotationally moving the X-ray source and the detector along concentric circular paths. Then, the rotationally measured image at every measurement angle is provided with a weight that gives intensity variation equivalent to that of the reconstructed image obtained from the rotationally measured images acquired by the measurement using the rotation angle range of 180 degrees, a reconstruction operation is performed, and a reconstructed image is obtained. | ||||||
| 200 | THREE-DIMENSIONAL RESOLUTION GAUGE FOR EVALUATING PERFORMANCE OF TOMOGRAPHIC IMAGING SYSTEMS | US15097515 | 2016-04-13 | US20160314570A1 | 2016-10-27 | David J. GOODENOUGH; Joshua R. LEVY |
| A three-dimensional resolution gauge for evaluating performance of a tomographic imaging system includes a series of groupings of 3-dimensional line pairs. All of the line pairs are oriented at a common set acute angle relative to a reference x-y imaging plane. The frequency of the line pairs of respective groupings of the series vary from highest density to lowest density corresponding to fine resolution and coarse resolution, respectively. Imaging of the series of groupings by the tomographic imaging system provides, in a single scan, a simultaneous visualization of combined effects of x-y in-plane resolution and slice thickness z direction resolution. | ||||||
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