公开(公告)号：US11748598B2

公开(公告)日：2023-09-05

申请号：US16758000

申请日：2018-10-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Chuanyong Bai ,  Yang-Ming Zhu ,  Andriy Andreyev ,  Bin Zhang ,  Chi-Hua Tung

IPC: A61B6/00 ,  A61B6/03 ,  G06N3/084 ,  G06N3/045

CPC classification number: A61B6/5205 ,  A61B6/037 ,  A61B6/5235 ,  A61B6/584 ,  G06N3/045 ,  G06N3/084

Abstract: An imaging method (100) includes: acquiring first training images of one or more imaging subjects using a first image acquisition device (12); acquiring second training images of the same one or more imaging subjects as the first training images using a second image acquisition device (14) of the same imaging modality as the first imaging device; and training a neural network (NN) (16) to transform the first training images into transformed first training images having a minimized value of a difference metric comparing the transformed first training images and the second training images.

公开(公告)号：US09476994B2

公开(公告)日：2016-10-25

申请号：US14418486

申请日：2013-07-31

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bin Zhang ,  Chi-Hua Tung ,  John Patrick Collins

IPC: G01T1/20 ,  G01T1/29 ,  G01T1/164 ,  G06T11/00 ,  A61B6/03

CPC classification number: G01T1/2985 ,  A61B6/037 ,  G01T1/1647 ,  G06T11/005

Abstract: A positron emission tomography (PET) system includes a memory (18), a subject support (3), a categorizing unit (20), and a reconstruction unit (22). The memory (18) continuously records detected coincident event pairs detected by PET detectors (4). The subject support (3) supports a subject and moves in a continuous movement through a field of view (10) of the PET detectors (4). The categorizing unit (20) categorizes the recorded coincident pairs into each of a plurality of spatially defined virtual frame (14). The reconstruction unit (22) reconstructs the categorized coincident pairs of each virtual frame into a frame image and combines the frame images into a common elongated image.

Abstract translation: 正电子发射断层摄影（PET）系统包括存储器（18），对象支架（3），分类单元（20）和重建单元（22）。 存储器（18）连续记录由PET检测器（4）检测的检测到的重合事件对。 主体支撑件（3）支撑主体并通过PET检测器（4）的视野（10）连续移动。 分类单元（20）将记录的重合对分类为多个空间定义的虚拟帧（14）中的每一个。 重建单元（22）将每个虚拟帧的分类的重合对重构为帧图像，并将帧图像组合成公共的细长图像。

公开(公告)号：US20140369577A1

公开(公告)日：2014-12-18

申请号：US14363917

申请日：2012-12-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： John Patrick Collins ,  Chi-Hua Tung ,  Bin Zhang

IPC: G06T5/00 ,  G06F17/30 ,  G06T7/00

CPC classification number: G06T5/00 ,  A61B6/032 ,  A61B6/037 ,  A61B6/5205 ,  A61B6/5294 ,  A61B6/563 ,  G06F16/583 ,  G06T7/0012 ,  G06T11/005 ,  G06T2207/30004 ,  G16H30/20

Abstract: A database (52) stores image recipient reconstruction profiles each comprising image reconstruction parameter values. An image reconstruction module (30) is configured to reconstruct medical imaging data to generate a reconstructed image. An image reconstruction setup module (50) is configured to retrieve an image recipient reconstruction profile from the database (52) for an intended image recipient associated with a set of medical imaging data and to invoke the image reconstruction module (30) to reconstruct the set of medical imaging data using image reconstruction parameter values of the retrieved image recipient reconstruction profile to generate a reconstructed image for the intended image recipient. A feedback acquisition module (54) is configured to acquire feedback from the intended image recipient pertaining to the reconstructed image for the intended image recipient. A profile updating module (56) is configured to update the image recipient reconstruction profile of the intended image recipient based on the acquired feedback.

Abstract translation: 数据库（52）存储每个包括图像重建参数值的图像接收重建简档。 图像重建模块（30）被配置为重建医学成像数据以生成重建图像。 图像重建设置模块（50）被配置为从数据库（52）检索与一组医学成像数据相关联的预期图像接收者的图像接收者重建简档，并且调用图像重构模块（30）重建该组 的医学成像数据，使用所检索的图像接收者重建简档的图像重建参数值，以生成预期图像接收者的重建图像。 反馈获取模块（54）被配置为从预期图像接收者获取关于预期图像接收者的重建图像的反馈。 配置文件更新模块（56）被配置为基于获取的反馈来更新预期图像接收者的图像接收者重建简档。

公开(公告)号：US20140249408A1

公开(公告)日：2014-09-04

申请号：US14348905

申请日：2012-09-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： John Patrick Collins ,  Chi-Hua Tung ,  Bin Zhang

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/5235 ,  A61B6/032 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/545 ,  F04C2270/041

Abstract: A hybrid imaging system includes a first imaging system configured to acquire anatomical data of a first field of view of an anatomical structure. A second imaging system configured to acquire functional data of the anatomical structure, the second imaging system acquiring functional data in a two-pass list-mode acquisition scheme. A reconstruction processor configured to reconstruct the functional data based on attenuation data into an attenuation corrected image and reconstruct the anatomical data into one or more high resolution images of one or more regions of interest.

Abstract translation: 混合成像系统包括被配置为获取解剖结构的第一视野的解剖学数据的第一成像系统。 第二成像系统，被配置为获取所述解剖结构的功能数据，所述第二成像系统以双路列表模式获取方案获取功能数据。 一种重建处理器，被配置为基于衰减数据将功能数据重建为衰减校正图像，并将解剖学数据重建成一个或多个感兴趣区域的一个或多个高分辨率图像。

公开(公告)号：US11270479B2

公开(公告)日：2022-03-08

申请号：US16070791

申请日：2017-02-13

Applicant: KONINKLIJKE PHILIPS N.V. ,  UNIVERSITY OF CHICAGO

Inventor： Xiaochuan Pan ,  Jinghan Ye ,  Amy Perkins ,  Chi-Hua Tung ,  Zheng Zhang

IPC: A61B6/00 ,  G06T11/00 ,  A61B6/03

Abstract: In an emission imaging method, emission imaging data are acquired for a subject using an emission imaging scanner (10) including radiation detectors (12). The emission imaging data are reconstructed to generate a reconstructed image by executing a constrained optimization program including a measure of data fidelity between the acquired emission imaging data an a reconstruct-image transformed by a data model of the imaging scanner to emission imaging data. During the reconstructing, each iteration of the constrained optimization program is constrained by an image variability constraint. The reconstructed image is displayed the reconstructed image on a display device. The emission imaging may be positron emission tomography (PET) imaging data, optionally acquired using a sparse detector array. The image variability constraint may be a constraint that an image total variation (image TV) of a latent image defined using a Gaussian blurring matrix be less than a maximum value.

公开(公告)号：US10799200B2

公开(公告)日：2020-10-13

申请号：US14909747

申请日：2014-08-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bin Zhang ,  Chi-Hua Tung

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/04 ,  G01T1/29

Abstract: A nuclear scanner includes an annular support structure (12) which supports a plurality of radiation detector units (14), each detector unit including crystals (52), tiles (66) containing an array of crystals, or modules (14) of tiles. The detector units define annular ranks of crystals, and the annular ranks of crystals define spaces between the ranks. In another embodiment, the crystals define axial spaces between crystals. Separate rings of crystals have axial spaces that are staggered such that no area of the imaging region is missed. The spaces between the detector units may be adjusted to form uniform or non-uniform spacing. Moving the patient through the annular support structure compensates for reduced sampling under the spaces between ranks.

公开(公告)号：US10438379B2

公开(公告)日：2019-10-08

申请号：US15117550

申请日：2015-02-18

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Xiyun Song ,  Jinghan Ye ,  Zhiqiang Hu ,  Changhong Dai ,  Varun Verma ,  Chi-Hua Tung

IPC: G06T11/00 ,  G06T5/00 ,  G06T5/20

Abstract: A system (10) and a method (100) iteratively reconstruct an image of a target volume of a subject. In each iteration of a plurality of iterations, an estimate image of the target volume (54) is forward projected (58) and compared (62) to received event data (44) to determine a discrepancy (64). The discrepancy (64) is back projected (66) and the back projection (68) updates (70) the estimate image (54). In at least one iteration, the estimate image (54) is filtered (52) in the image domain prior to being back projected.

公开(公告)号：US10275906B2

公开(公告)日：2019-04-30

申请号：US15326159

申请日：2015-07-09

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Chi-Hua Tung ,  Shekhar Dwivedi ,  Yang-Ming Zhu ,  John Patrick Collins

IPC: G06K11/00 ,  G06T11/00 ,  G16H40/63 ,  G06F19/00 ,  G06F3/0484

Abstract: A diagnostic imaging system retrieves data (206) from a plurality of accessible data sources, the accessible data sources storing data including physiological data describing a subject to be imaged, a nature of a requested diagnostic image, image preferences of a clinician who requested the diagnostic image, and previously reconstructed images of the requested nature of the subject and/or other subjects, reconstruction parameters and/or sub-routines used to reconstruct the previously reconstructed images. The system analyzes (6, 12) the retrieved data to automatically generate reconstruction parameters and/or sub-steps specific to the nature of the requested diagnostic image, the subject, and the clinician image preferences. The system controls a display device (10, 216) to display the generated reconstruction parameters and/or sub-routines to the user for a user selection. The system sets a reconstruction processor system to reconstruct scan data using the selected reconstruction parameters and/or sub-routines.

公开(公告)号：US11806182B2

公开(公告)日：2023-11-07

申请号：US17270224

申请日：2019-08-13

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andriy Andreyev ,  Douglas B. McKnight ,  Nathan Serafino ,  Dane Pittock ,  Chuanyong Bai ,  Chi-Hua Tung

IPC: A61B6/00 ,  G16H50/30 ,  A61B6/04

CPC classification number: A61B6/501 ,  A61B6/04 ,  A61B6/4057 ,  A61B6/4258 ,  A61B6/5217 ,  G16H50/30

Abstract: A device (10) for performing an amyloid assessment includes a radiation detector assembly (12) including at least one radiation detector (14). At least one electronic processor (20) is programmed to: detect radiation counts over a data acquisition time interval using the radiation detector assembly; compute at least one current count metric from the detected radiation counts; store the at least one current count metric associated with a current test date in a non-transitory storage medium (26); and determine an amyloid metric based on a comparison of the at least one current count metric with a count metric stored in the non-transitory storage medium associated with an earlier test date.

公开(公告)号：US11282242B2

公开(公告)日：2022-03-22

申请号：US16963343

申请日：2019-01-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Jinghan Ye ,  Xiyun Song ,  Chuanyong Bai ,  Andriy Andreyev ,  Chi-Hua Tung ,  Zhiqiang Hu

IPC: G06T11/00

Abstract: A non-transitory computer-readable medium stores instructions readable and executable by a workstation (18) including at least one electronic processor (20) to perform an image reconstruction method (100). The method includes: generating, from received imaging data, a plurality of intermediate images reconstructed without scatter correction from data partitioned into different energy windows; generating a fraction of true counts and a fraction of scatter events in the generated intermediate images; generating a final reconstructed image from the intermediate images, the fraction of true counts in the intermediate images, and the fraction of scatter counts in the intermediate images; and at least one of controlling the non-transitory computer readable medium to store the final image and control a display device (24) to display the final image.