公开(公告)号：US20240299642A1

公开(公告)日：2024-09-12

申请号：US18669992

申请日：2024-05-21

申请人： Ottawa Heart Institute Research Corporation

发明人： Robert A. deKemp

IPC分类号： A61M5/00 ,  A61B6/00 ,  A61B6/03 ,  A61B6/50 ,  A61M5/14 ,  A61M5/168

CPC分类号： A61M5/007 ,  A61B6/037 ,  A61B6/481 ,  A61B6/503 ,  A61B6/5264 ,  A61M5/1409 ,  A61M5/16813 ,  A61M5/16827

摘要： Disclosed are methods of radioisotope infusion comprising infusing saline comprising a diagnostic dose of a radioisotope, and delivering a pre-measured volume of push saline. The radioisotope may be 82Rb, 15O, 13N, 11C or 18F. The radioisotope is infused in the subject for imaging of the heart using Positron Emission Tomography imaging. The methods confer improved image quality with low background noise, higher signal to noise ratio (SNR) and higher contrast to noise ratio (CNR), leading to better diagnosis and thus eliminating the need of repeating the infusion and imaging which in turn reduces exposure of a patient to radiation.

公开(公告)号：US11995744B2

公开(公告)日：2024-05-28

申请号：US17138867

申请日：2020-12-30

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Tao Feng ,  Yang Lyu ,  Hao Liu ,  Gang Yang

IPC分类号： G06K9/62 ,  A61B6/00 ,  A61B6/03 ,  G01T1/29 ,  G06T11/00

CPC分类号： G06T11/005 ,  A61B6/037 ,  A61B6/5264 ,  A61B6/5282 ,  G01T1/2985 ,  G06T2210/41

摘要： An imaging method may include obtaining original imaging data of an object in a raw-data domain including original time of flight (TOF) information. The method may also include gating the original imaging data into a plurality of data sets in the raw-data domain. The method may also include determining a plurality of motion vector fields based on the plurality of data sets. The method may also include generating corrected imaging data in the raw-data domain by performing motion correction on at least one of the plurality of data sets based on the original TOF information and at least one corresponding MVF of the plurality of MVFs. The method may also include generating one or more target images of the object by performing, based on the corrected imaging data, image reconstruction.

公开(公告)号：US11989804B2

公开(公告)日：2024-05-21

申请号：US17449450

申请日：2021-09-29

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Xin Hao ,  Xiang Li

IPC分类号： G06T11/00 ,  A61B5/00 ,  A61B5/346 ,  A61B5/352 ,  A61B6/00 ,  A61B6/03 ,  A61B6/50 ,  G06T7/00 ,  A61B5/0245

CPC分类号： G06T11/008 ,  A61B5/0044 ,  A61B5/346 ,  A61B5/352 ,  A61B5/7207 ,  A61B5/7267 ,  A61B5/7285 ,  A61B6/032 ,  A61B6/503 ,  A61B6/504 ,  A61B6/5205 ,  A61B6/5264 ,  A61B6/5288 ,  G06T7/0012 ,  A61B5/0245 ,  G06T11/006 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/10104 ,  G06T2207/20081 ,  G06T2207/30048 ,  G06T2207/30168 ,  G06T2210/41 ,  G06T2211/424

摘要： The present disclosure relates to a method for analyzing an R-wave of an electrocardiogram (ECG) signal. The method includes obtaining an original ECG signal of a subject; filtering the original ECG signal; determining whether to trigger a search gate based on the filtered ECG signal, wherein the search gate is an instruction for detecting an R-wave on the original ECG signal; and detecting the R-wave on the original ECG signal in response to a determination of triggering the search gate.

公开(公告)号：US20240122566A1

公开(公告)日：2024-04-18

申请号：US17965228

申请日：2022-10-13

申请人： GE Precision Healthcare LLC

发明人： Balázs P. Cziria ,  German Guillermo Vera Gonzalez ,  Tao Tan ,  Pal Tegzes ,  Justin M. Wanek ,  Gopal B. Avinash ,  Zita Herczeg ,  Ravi Soni ,  Gireesha Chinthamani Rao

IPC分类号： A61B6/00 ,  G01N23/04 ,  G06T5/00 ,  G06T5/50 ,  G16H30/40

CPC分类号： A61B6/5264 ,  A61B6/463 ,  A61B6/467 ,  A61B6/482 ,  G01N23/04 ,  G06T5/003 ,  G06T5/50 ,  G16H30/40 ,  G01N2223/401 ,  G06T2207/10116 ,  G06T2207/20081 ,  G06T2207/20201 ,  G06T2207/20224 ,  G06T2207/30004

摘要： A dual energy x-ray imaging system and method of operation includes an artificial intelligence-based motion correction system to minimize the effects of motion artifacts in images produced by the imaging system. The motion correction system is trained to apply simulated motion to various objects of interest within the LE and HE projections in the training dataset to improve registration of the LE and HE projections. The motion correction system is also trained to enhance the correction of small motion artifacts using noise attenuation and subtraction image-based edge detection on the training dataset images reduce noise from the LE projection, consequently improving small motion artifact correction. The motion correction system additionally employs separate motion corrections for soft and bone tissue in forming subtraction soft tissue and bone tissue images, and includes a motion alarm to indicate when motion between LE and HE projections requires a retake of the projections.

公开(公告)号：US11940521B2

公开(公告)日：2024-03-26

申请号：US17612066

申请日：2020-05-18

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Christoph Gunther Leussler ,  Christian Findeklee ,  Jan Jakob Meineke ,  Peter Vernickel ,  Peter Koken

IPC分类号： G01R33/56 ,  A61B6/00 ,  A61B6/03 ,  G01R33/565 ,  G01R33/567

CPC分类号： G01R33/56509 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5264 ,  G01R33/5673

摘要： Disclosed is a medical system (100, 300, 500, 700) comprising: a memory (128) storing machine executable instructions (130); a processor (122) configured for controlling the medical system; and a pilot tone system (106). The pilot tone system comprises a radio frequency system (108) comprising multiple transmit channels (110) and multiple receive channels (112). The multiple transmit channels are configured for each transmitting unique pilot tone (132) signals via multiple transmit coils. The multiple receive channels are configured for receiving multi-channel pilot tone data (134) via multiple receive coils. Execution of the machine executable instructions causes the processor to: transmit (200) multi-channel pilot tone signals by controlling at least a portion of the multiple transmit channels to transmit the unique pilot tone signals; acquire (202) multi-channel pilot tone data (134) by controlling at least a portion of the multiple receive channels to receive the multi-channel pilot tone data; and determine (204) a motion state (136) of the subject using the multi-channel pilot tone data.

公开(公告)号：US20240087126A1

公开(公告)日：2024-03-14

申请号：US18367167

申请日：2023-09-12

申请人： CEDARS-SINAI MEDICAL CENTER

发明人： Chih-Chun Wei ,  Piotr Slomka ,  Serge D. Van Kriekinge

IPC分类号： G06T7/00 ,  A61B6/00 ,  A61B6/03 ,  G06T5/50 ,  G06T7/12 ,  G06T7/30

CPC分类号： G06T7/0016 ,  A61B6/037 ,  A61B6/503 ,  A61B6/507 ,  A61B6/5264 ,  G06T5/50 ,  G06T7/12 ,  G06T7/30 ,  G06T2207/10104 ,  G06T2207/20221 ,  G06T2207/30104

摘要： Systems and methods are disclosed for automatically performing motion correction in dynamic positron emission tomography scans, such as dynamic positron emission tomography myocardial perfusion imaging studies. An automated algorithm can be used. The algorithm can use simplex iterative optimization of a count-based cost-function customized to different dynamic phases for performing frame-by-frame motion correction.

公开(公告)号：US11911118B2

公开(公告)日：2024-02-27

申请号：US18233667

申请日：2023-08-14

申请人： VUZE MEDICAL LTD.

发明人： David Tolkowsky

IPC分类号： G06K9/00 ,  A61K35/12 ,  A61B34/20 ,  A61B46/20 ,  A61B6/12 ,  A61B6/00 ,  A61B90/00 ,  A61B8/00 ,  G06T15/06 ,  G06T15/08 ,  A61B34/30 ,  G06T7/30

CPC分类号： A61B34/20 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/505 ,  A61B6/5223 ,  A61B6/5241 ,  A61B6/5247 ,  A61B6/5264 ,  A61B6/584 ,  A61B8/4416 ,  A61B46/20 ,  A61B90/36 ,  A61B90/39 ,  G06T15/06 ,  G06T15/08 ,  A61B34/30 ,  A61B2034/2055 ,  A61B2090/364 ,  A61B2090/376 ,  A61B2090/395 ,  A61B2090/3966 ,  A61B2090/3995 ,  G06T7/30 ,  G06T2207/10072 ,  G06T2207/10124 ,  G06T2207/30012

摘要： Apparatus and methods are described including acquiring 3D image data of a skeletal portion. While a tool that is coupled to a robot is disposed at a first location along an insertion path, two 2D x-ray images are acquired from respective views. A computer processor (i) determines the first location with respect to the 3D image data based upon identifying the first location within the 2D x-ray images and registering the 2D x-ray images to the 3D image data, and (ii) derives a relationship between the first location and a given location within the 3D image data. Subsequently, the robot moves the tool to a second location responsively to the derived relationship. The processor tracks the motion of the robot relative to the first location, derives the second location, and drives a display to display the second location. Other applications are also described.

公开(公告)号：US11857269B2

公开(公告)日：2024-01-02

申请号：US17131386

申请日：2020-12-22

申请人： Mobius Imaging, LLC

发明人： Eugene A. Gregerson ,  Paul Sebring ,  Russell Stanton ,  Scott Coppen ,  Adeline Harris ,  Todd Furlong ,  Jeff Baker

IPC分类号： A61B5/05 ,  A61B34/20 ,  A61B6/00 ,  A61B5/00 ,  A61B34/30 ,  A61B46/10 ,  A61B90/00 ,  A61B5/055 ,  A61B6/12 ,  A61B5/11 ,  A61B5/06 ,  A61B6/03 ,  A61B6/04 ,  A61B8/08

CPC分类号： A61B34/20 ,  A61B5/0036 ,  A61B5/055 ,  A61B6/12 ,  A61B6/547 ,  A61B34/30 ,  A61B46/10 ,  A61B90/37 ,  A61B90/39 ,  A61B5/064 ,  A61B5/1114 ,  A61B5/1127 ,  A61B6/032 ,  A61B6/037 ,  A61B6/04 ,  A61B6/4441 ,  A61B6/4447 ,  A61B6/5264 ,  A61B8/0841 ,  A61B2034/2055 ,  A61B2090/376 ,  A61B2090/3762 ,  A61B2090/3937 ,  A61B2505/05

摘要： Methods and systems for performing robotically-assisted surgery in conjunction with intra-operative imaging. A method includes moving a robotic arm with respect to a patient and an imaging device to move an end effector of the robotic arm to a pre-determined position and orientation with respect to the patient based on imaging data of the patient obtained by the imaging device. The robotic arm maintains the end effector in the pre-determined position and orientation with respect to the patient and does not collide with the imaging device or with the patient when the imaging device moves with respect to the patient.

公开(公告)号：US20230380909A1

公开(公告)日：2023-11-30

申请号：US18233667

申请日：2023-08-14

申请人： VUZE MEDICAL LTD.

发明人： David TOLKOWSKY

IPC分类号： A61B34/20 ,  A61B46/20 ,  A61B6/12 ,  A61B6/00 ,  A61B90/00 ,  A61B8/00 ,  G06T15/06 ,  G06T15/08

CPC分类号： A61B34/20 ,  A61B46/20 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/5223 ,  A61B90/36 ,  A61B90/39 ,  A61B6/505 ,  A61B6/5241 ,  A61B6/5247 ,  A61B6/5264 ,  A61B6/584 ,  A61B8/4416 ,  G06T15/06 ,  G06T15/08 ,  A61B2034/2055 ,  A61B34/30

摘要： Apparatus and methods are described including acquiring 3D image data of a skeletal portion. While a tool that is coupled to a robot is disposed at a first location along an insertion path, two 2D x-ray images are acquired from respective views. A computer processor (i) determines the first location with respect to the 3D image data based upon identifying the first location within the 2D x-ray images and registering the 2D x-ray images to the 3D image data, and (ii) derives a relationship between the first location and a given location within the 3D image data. Subsequently, the robot moves the tool to a second location responsively to the derived relationship. The processor tracks the motion of the robot relative to the first location, derives the second location, and drives a display to display the second location. Other applications are also described.

公开(公告)号：US20230309943A1

公开(公告)日：2023-10-05

申请号：US18207035

申请日：2023-06-07

申请人： Pie Medical Imaging B.V.

发明人： Theo van Walsum ,  Hua Ma ,  Jean-Paul Aben ,  Dennis Koehn

IPC分类号： A61B6/00 ,  G06T7/73 ,  G16H30/20 ,  G16H30/40 ,  A61B5/00 ,  A61B6/03 ,  G06T7/00 ,  A61B5/349

CPC分类号： A61B6/5205 ,  G06T7/74 ,  G16H30/20 ,  G16H30/40 ,  A61B5/0044 ,  A61B6/032 ,  A61B6/461 ,  A61B6/481 ,  A61B6/503 ,  A61B6/504 ,  A61B6/5264 ,  G06T7/0014 ,  A61B5/349 ,  G06T2207/20081 ,  G06T2207/30048

摘要： Methods and systems are provided for dynamically visualizing an object of interest that includes part of the vasculature of a patient, which employ a 3D model of the object to generate at least one roadmap that includes information that characterizes properties of the object (such as centerlines, contours, and an image mask. Reference location(s) corresponding to the roadmap(s) are determined for an interventional device used to treat the object. In an online phase, non-contrast-enhanced x-ray image data of the object are obtained and processed to determine location of the interventional device in the image data, and a particular roadmap is selected or accessed. The reference location corresponding to the particular roadmap and the determined location of interventional device are used to transform the particular roadmap. A visual representation of the transformed roadmap is overlaid on the image data for display.