Treatment planning system
    42.
    发明授权

    公开(公告)号:US10426974B2

    公开(公告)日:2019-10-01

    申请号:US15305374

    申请日:2015-03-23

    Abstract: The generation of a pattern and for an adaptation to the specific geometry requires a lot of manual work. The workflow for the clinician is simplified during treatment planning. A treatment planning system is configured for determining a set of catheter or needle insertion positions to be used during treatment. The treatment planning system includes an image providing module for providing a medical image from which at least one treatment target structure can be derived. Further the treatment planning system includes a pattern providing module for providing one or a set of standard patterns for catheter or needle insertion including a plurality of catheter or needle insertion positions. The catheter or needle positions relate to treatment positions in the at least one treatment target structure.

    CORRECTING THE MAGNETIC FIELD OF A MEDICAL APPARATUS WITH A GANTRY

    公开(公告)号:US20180003789A1

    公开(公告)日:2018-01-04

    申请号:US15599776

    申请日:2017-05-19

    Abstract: A method of correcting a magnetic field of a medical apparatus (300) comprising a magnetic resonance imaging system (302). The MRI system includes a magnet (306) for generating the magnetic field within an imaging zone 318. The magnet generates a magnetic field with a zero crossing (346, 404) outside of the imaging zone. The medical apparatus further comprises a gantry (332) configured for rotating a ferromagnetic component (336, 510) about a rotational axis (333). The method comprises the step of installing (100, 200) a magnetic correcting element (348, 900, 1000) located on a radial path (344, 504) perpendicular to the rotational axis. The magnetic correcting element is positioned on the radial path such that change in the magnetic field within the imaging zone due to the ferromagnetic component is reduced. The method further comprises repeatedly: measuring (102, 202, 1204) the magnetic field within the imaging zone; determining (104, 204, 1206) the change in the magnetic field in the imaging zone; and adjusting (106, 206, 1208) the position of the magnetic correcting element along the radial path if the change in the magnetic field is above a predetermined threshold.

    AUTOMATIC CURRENT SWITCHING OF CURRENT LEADS FOR SUPERCONDUCTING MAGNETS

    公开(公告)号:US20170356970A1

    公开(公告)日:2017-12-14

    申请号:US15688047

    申请日:2017-08-28

    Abstract: The invention provides for magnetic resonance imaging system (600) comprising a superconducting magnet (100) with a first current lead (108) and a second current lead (110) for connecting to a current ramping system (624). The magnet further comprises a vacuum vessel (104) penetrated by the first current lead and the second current lead. The magnet further comprises a magnet circuit (106) within the vacuum vessel. The magnet circuit has a first magnet circuit connection (132) and a second magnet circuit connection (134). The magnet further comprises a first switch (120) between the first magnet connection and the first current lead and a second switch (122) between the second magnet connection and the second current lead. The magnet further comprises a first current shunt (128) connected across the first switch and a second current shunt (130) connected across the second switch. The magnet further comprises a first rigid coil loop (124) operable to actuate the first switch. The first rigid coil loop forms a portion of the first electrical connection. The magnet further comprises a second rigid coil loop (126) operable to actuate the second switch. The second rigid coil loop forms a portion of the second electrical connection.

    Magnetic resonance fingerprinting quality assurance

    公开(公告)号:US12196832B2

    公开(公告)日:2025-01-14

    申请号:US18013922

    申请日:2021-07-01

    Abstract: Disclosed herein is a medical system (100, 300) comprising a memory (110) storing machine executable instructions (120) and an MRF scoring module (122). The MRF scoring module is configured for outputting an MRF quality score (126) in response to receiving MRF data (124) as input. The medical system further comprises a computational system (106) configured for controlling the medical system, wherein execution of the machine executable instructions causes the computational system to: receive (200) the MRF data; receive (202) the MRF quality score in response to inputting the MRF data into an MRF scoring module; append (206) the MRF quality score to the MRF data if the MRF quality score is within a predetermined range (128); and provide (208) a signal (132) if the MRF quality score is outside of the predetermined range.

    Magnetic field gradient coils with closely packed windings and methods of manufacturing same

    公开(公告)号:US11536787B2

    公开(公告)日:2022-12-27

    申请号:US16063305

    申请日:2016-12-21

    Abstract: A magnetic field z-gradient coil is manufactured by inserting elements (38) into openings (36) on an outside of an insulating carrier (32), wrapping an electrical conductor turn (34) around the outside of the insulating carrier with one side of the wrapped electrical conductor alongside elements inserted into openings on the outside of the insulating carrier, removing the elements alongside the one side of the wrapped electrical conductor from the openings, and repeating to wrap conductor turns of a z-gradient coil (20) around the electrically insulating carrier. A transverse magnetic field gradient coil is manufactured by laying electrical conductor (44) onto a mold (50) with a keying feature (46, 46a) extending along the conductor engaging a mating keying feature (52, 52a) of the mold that defines a winding pattern (56), attaching an insulating back plate (58) to the resulting coil section opposite from the mold, and removing the mold.

    CONTAINER BUILDER FOR INDIVIDUALIZED NETWORK SERVICES

    公开(公告)号:US20210271777A1

    公开(公告)日:2021-09-02

    申请号:US17260587

    申请日:2019-10-22

    Abstract: Some embodiments are directed to a container builder (110) for building a container image for providing an individualized network service based on sensitive data (122) in a database (121). The container builder (110) retrieves the sensitive data (122) from the database (121), builds the container image (140), and provides it for deployment to a cloud service provider (111). The container image (140) comprises the sensitive data (122) and instructions that, when deployed as a container, cause the container to provide the individualized network service based on the sensitive data (122) comprised in the container image (140).

    Direct measurement of the B0-off-resonance field during magnetic resonance fingerprinting

    公开(公告)号:US11041925B2

    公开(公告)日:2021-06-22

    申请号:US16339405

    申请日:2017-09-22

    Abstract: A processor controls an MRI system with pulse sequence commands to acquire magnetic resonance data according to a magnetic resonance fingerprinting protocol during multiple pulse repetitions. The pulse sequence commands control the magnetic resonance imaging system to cause gradient induced spin rephasing at least twice during each of the multiple pulse repetitions, and to acquire at least two magnetic resonance signals during each of the multiple pulse repetitions. Each of the at least two magnetic resonance signals is measured during a separate one of the gradient induced spin rephasing. The magnetic resonance data includes the at least two magnetic resonance signals acquired during each of the multiple pulse repetitions. The processor further at least partially calculates a B0-off-resonance map using the magnetic resonance data, and generates at least one magnetic resonance parametric map by comparing the magnetic resonance data with a magnetic resonance fingerprinting dictionary.

    INTELLIGENT SCHEDULER FOR CENTRALIZED CONTROL OF IMAGING EXAMINATIONS

    公开(公告)号:US20210050092A1

    公开(公告)日:2021-02-18

    申请号:US16980386

    申请日:2019-03-14

    Abstract: Various embodiments of the inventions of the present disclosure a systematic framework of matrices constructed as a basis for a centralized control of assigning imaging operators to operate imaging systems (11) in accordance with a plurality of scheduled imaging examinations. An operator preference matrix (70) including an array of operator preference entries arranged by the imaging operators and the scheduled imaging examinations and an operator availability matrix (80) including an array of operator availability entries arranged by the imaging operators and the scheduled imaging examinations are constructed to provide for a construction of an operator capability matrix (60) including an array of operator capability entries arranged by the imaging operators and the scheduled imaging examinations, which the operator capability matrix (60) serving as a basis for generating an operator assignment schedule (50) for the imaging operators to operate the imaging systems (11) in accordance with the scheduled imaging examinations.

    Silent 3D magnetic resonance fingerprinting

    公开(公告)号:US10816625B2

    公开(公告)日:2020-10-27

    申请号:US16095954

    申请日:2017-04-26

    Abstract: The invention provides for a magnetic resonance imaging system (100) for acquiring magnetic resonance data (142) from a subject (118) within an imaging zone (108). The magnetic resonance imaging system comprises a memory (134, 136) for storing machine executable instructions (160), and pulse sequence commands (140, 400, 502, 600, 700), wherein the pulse sequence commands are configured to cause the magnetic imaging resonance system to acquire the magnetic resonance data according to a magnetic resonance fingerprinting technique. The pulse sequence commands are further configured to control the magnetic resonance imaging system to perform spatial encoding using a zero echo time magnetic resonance imaging protocol. Execution of the machine executable instructions causes the processor controlling the MRI system to: acquire (200) the magnetic resonance data by controlling the magnetic resonance imaging system with the pulse sequence commands; and calculate (202) a spatial distribution (146) of each of a set of predetermined substances by comparing the magnetic resonance data with a magnetic resonance fingerprinting dictionary (144).

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