公开(公告)号：US20240057955A1

公开(公告)日：2024-02-22

申请号：US17888642

申请日：2022-08-16

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  Brian Edward Nett

IPC: A61B6/03 ,  G01N23/046

CPC classification number: A61B6/032 ,  G01N23/046 ,  A61B6/5205

Abstract: A medical imaging system includes a CT imaging system including a gantry having a bore, rotatable about an axis of rotation. The CT imaging system includes a table configured to move a subject to be imaged into and out of the bore, a radiation source mounted on the gantry and configured to emit an X-ray beam, and a detector configured to detect the X-ray beam. The medical imaging system includes a LiDAR scanning system physically coupled to the CT imaging system. The LiDAR scanning system is configured to acquire data of the subject from different angular positions relative to the axis of rotation. The medical imaging system includes processing circuitry configured to receive the data acquired with the LiDAR scanning system, to generate a three-dimensional (3D) measurement of the subject, and to utilize the 3D measurement in a subsequent workflow process for a CT scan of the subject.

公开(公告)号：US20230320688A1

公开(公告)日：2023-10-12

申请号：US17658900

申请日：2022-04-12

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  John M. Boudry ,  Zhoubo Li ,  Adam Cohen

IPC: A61B6/00 ,  A61B6/03 ,  G06T7/00

CPC classification number: A61B6/583 ,  A61B6/032 ,  G06T7/0002 ,  G06T2207/30168 ,  G06T2207/30004 ,  G06T2207/10081

Abstract: Methods and systems are provided for calibrating a medical imaging system. In one example, a method includes identifying a calibration vector to be updated based on an artifact in an image acquired with the medical imaging system, determining calibration data to be obtained with the medical imaging system based on the calibration vector, obtaining the calibration data with the medical imaging system, and updating the calibration vector based on the calibration data.

公开(公告)号：US20230229925A1

公开(公告)日：2023-07-20

申请号：US17648390

申请日：2022-01-19

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  John M. Boudry

IPC: G06N3/08

CPC classification number: G06N3/084

Abstract: Systems/techniques that facilitate thermally adaptive scan sequencing for computed tomography scanners are provided. In various embodiments, a system can access a set of scanning protocols performable by a computed tomography scanner. In various aspects, the system can further access a current thermal state of the computed tomography scanner. In various instances, the system can identify, in the set of scanning protocols and based on the current thermal state, a scanning protocol that is predicted to reduce or control thermal stresses experienced by the computed tomography scanner. In various cases, the system can cause the computed tomography scanner to perform the identified scanning protocol.

公开(公告)号：US20250139764A1

公开(公告)日：2025-05-01

申请号：US18499071

申请日：2023-10-31

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  Brian E. Nett ,  Chelsey Amanda Lewis

IPC: G06T7/00 ,  G06T7/246 ,  G06T11/00

Abstract: An imaging system and method for using the imaging system are described. In one example, a method of A method of identifying movement of a patient during a medical imaging scan includes initiating motion detection data acquisition, initiating a medical imaging scan of the patient to acquire scan data, determining a motion score curve for duration of the medical imaging scan based on the motion detection data, removing portions of the scan data corresponding to a motion score curve outside of an acceptable range, and selecting the scan data corresponding to a motion score curve within the acceptable range for reconstruction.

公开(公告)号：US12263024B2

公开(公告)日：2025-04-01

申请号：US17888642

申请日：2022-08-16

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  Brian Edward Nett

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/04 ,  A61B6/58 ,  G01N23/046

Abstract: A medical imaging system includes a CT imaging system including a gantry having a bore, rotatable about an axis of rotation. The CT imaging system includes a table configured to move a subject to be imaged into and out of the bore, a radiation source mounted on the gantry and configured to emit an X-ray beam, and a detector configured to detect the X-ray beam. The medical imaging system includes a LiDAR scanning system physically coupled to the CT imaging system. The LiDAR scanning system is configured to acquire data of the subject from different angular positions relative to the axis of rotation. The medical imaging system includes processing circuitry configured to receive the data acquired with the LiDAR scanning system, to generate a three-dimensional (3D) measurement of the subject, and to utilize the 3D measurement in a subsequent workflow process for a CT scan of the subject.

公开(公告)号：US20250090110A1

公开(公告)日：2025-03-20

申请号：US18469149

申请日：2023-09-18

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  Brian Edward Nett ,  Chelsey Amanda Lewis ,  John Moore Boudry

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/04

Abstract: A method includes receiving data acquired with a light detection and ranging (LiDAR) scanning system physically coupled to a computed tomography (CT) imaging system of a subject to be imaged disposed on a cradle of a table, wherein the table is configured to move the subject into and out of a bore of a gantry of the CT imaging system. The method also includes generating a multi-dimensional avatar of the subject representing a topography of the subject. The method further includes causing display of the multi-dimensional avatar positioned on the cradle that represents a current position of the subject on the display, wherein the display is disposed adjacent the table within view of the subject. The method even further includes providing instructions on the display to enable the subject to guide themselves to a target position on the cradle for a CT scan with the CT imaging system.

公开(公告)号：US20250082248A1

公开(公告)日：2025-03-13

申请号：US18466115

申请日：2023-09-13

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  John Howard Londt

IPC: A61B5/352 ,  A61B6/00 ,  A61B6/03

Abstract: A method includes obtaining an electrocardiogram (ECG) signal during a scan of a heart of a subject with a CT scanner. The method includes calculating temporal R-R electrocardiogram interval measurements from the ECG signal. The method includes monitoring whether any irregular cardiac cycles are detected in the temporal R-R electrocardiogram interval measurements. The method includes determining whether an initial Z coverage of the scan is sufficient for obtaining an artifact free image of the heart at a target phase when one or more irregular cardiac cycles are detected. The method includes determining a required Z coverage to obtain the artifact free image of the heart at the target phase when the initial Z coverage is not sufficient. The method includes initiating a rescan of the heart to obtain the required Z coverage while continuing both to obtain the ECG signal and to monitor for any irregular cardiac cycles.

公开(公告)号：US12176099B2

公开(公告)日：2024-12-24

申请号：US17657411

申请日：2022-03-31

Applicant: GE Precision Healthcare LLC

Inventor： Arka Datta ,  Adam Israel Cohen

IPC: G16H40/40 ,  A61B6/00 ,  A61B6/40 ,  A61B6/42

Abstract: Systems/techniques that facilitate low-cost estimation and/or tracking of intra-scan focal-spot displacement are provided. In various embodiments, a system can cause a medical imaging scanner to perform an air scan. In various aspects, the system can access data produced by the medical imaging scanner and relating to the air scan, where the data can include a set of gantry angles swept by an X-ray tube during the air scan, where the data can include a set of intensity value matrices recorded by a multi-channel-multi-row detector during the air scan, and where the set of intensity value matrices respectively correspond to the set of gantry angles. In various instances, the system can compute a set of channel-spanning intensity slopes based on the set of intensity value matrices. In various cases, the system can apply a slope-to-displacement transfer function to the set of channel-spanning intensity slopes, thereby yielding a set of focal-spot displacements.

公开(公告)号：US11864941B2

公开(公告)日：2024-01-09

申请号：US17493005

申请日：2021-10-04

Applicant: GE PRECISION HEALTHCARE LLC

Inventor： Arka Datta ,  John Moore Boudry ,  Brandon Allan Smith

IPC: A61B6/00 ,  A61B6/03 ,  A61B6/06

CPC classification number: A61B6/582 ,  A61B6/03 ,  A61B6/06

Abstract: A method for verifying aperture positions of a pre-patient collimator of a computed tomography (CT) imaging system includes obtaining data collected by an X-ray measurement device having detector elements subjected to X-rays emitted from an X-ray source of the CT imaging system with the pre-patient collimator at an expected aperture position. The method also includes calculating a measured collimator aperture position for the pre-patient collimator based on the obtained data. The method further includes comparing the measured collimator aperture position to a system specification for the expected aperture position for the CT imaging system. The method even further includes generating an output based on the comparison of the measured collimator aperture position to the system specification.