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公开(公告)号：US20170328973A1
公开(公告)日：2017-11-16
申请号：US15527028
申请日：2015-11-16
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： THOMAS ERIK AMTHOR , SASCHA KRUEGER , MARIYA IVANOVA DONEVEA , PETER KOKEN , JULIEN SENEGAS , JOCHEN KEUPP , PETER BOERNERT
Abstract: A method of employing a central computer database (18) for supporting a characterization of tissue by magnetic resonance fingerprinting measurements, including steps of —exciting nuclei of a subject of interest by applying (50) a radio frequency excitation field B1 generated according to a magnetic resonance fingerprinting sequence (38), —acquiring (52) magnetic resonance imaging signal data from radiation emitted by excited nuclei of the subject of interest, —transferring (54) a magnetic resonance fingerprinting data set (42) to the central computer database (18), —retrieving (56) a predefined dictionary from the central computer database (18), —matching (60) the acquired magnetic resonance imaging signal data to the retrieved dictionary by applying a pattern recognition algorithm to determine a value (40) or a set of values (40) for at least one physical quantity (T1, T2), —adding (62) at least the determined value (40) or the determined set of values (40) as a new entry of an associated medical data set (36) to the central computer database (18), and —making (64) the new entry of an associated medical data set (36) accessible to users of the central computer database (18); and —a magnetic resonance fingerprinting data collection and analysis system (10) comprising a central computer database, a data receiving unit (20), a data output unit (22) and a data analysis device (26) configured to carry out the method.
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公开(公告)号：US20200041594A1
公开(公告)日：2020-02-06
申请号：US16498555
申请日：2018-03-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： THOMAS ERIK AMTHOR , MARIYA IVANOVA DONEVA , KARSTEN SOMMER , PETER KOKEN
IPC: G01R33/483 , G01R33/48 , G01R33/24 , G01R33/44 , G01R33/56 , G01R33/565
Abstract: The invention provides for a magnetic resonance imaging (MRI) system (100) that comprises a memory (134) for storing machine executable instructions (140) and MRF pulse sequence commands (142). The MRF pulse sequence commands cause the MRI system to acquire MRF magnetic resonance data (144) according to a magnetic resonance (MR) fingerprinting protocol. The pulse sequence commands are configured for acquiring the MRF magnetic resonance data in two dimensional slices (410, 412, 414, 416, 418, 420), wherein the two dimensional slices have a slice selection direction, wherein the pulse sequence commands comprises a train of pulse sequence repetitions. The train of pulse sequence repetitions comprises a sampling event where the MRF magnetic resonance data is repeatedly sampled. The MRI system further comprises a processor for controlling the magnetic resonance imaging system. Execution of the machine executable instructions causes the processor to: acquire (200) the MRF magnetic resonance data by controlling the magnetic resonance imaging system with the MRF pulse sequence commands; and construct (202) a series (148) of at least one magnetic resonance parameter value for each voxel of the two dimensional slices using the MRF magnetic resonance data, wherein each of the series corresponds to the sampling event of each pulse sequence repetition; and calculate (204) a composition (502, 504, 506, 508) of each of a set of predetermined substances within two or more sub voxels (306, 308) for each voxel of the two dimensional slices using a sub-voxel magnetic resonance fingerprinting dictionary (150) for each of the two or more sub voxels and the series of the at least one magnetic resonance parameter value, wherein sub voxels divide each voxel in the slice selection direction.
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3.发明申请公开(公告)号：US20190242961A1
公开(公告)日：2019-08-08
申请号：US16339405
申请日：2017-09-22
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： JAN JAKOB MEINEKE , THOMAS ERIK AMTHOR , PETER KOKEN , KARSTEN SOMMER
CPC classification number: G01R33/443 , G01R33/243 , G01R33/246 , G01R33/50 , G01R33/5608
Abstract: The invention provides for a magnetic resonance imaging system (100). Machine executable instructions cause a processor controlling the MRI system to control (200) the magnetic resonance imaging system with the pulse sequence commands to acquire the magnetic resonance data. The pulse sequence commands are configured for controlling the magnetic resonance imaging system to acquire the magnetic resonance data according to a magnetic resonance fingerprinting protocol. The pulse sequence commands are configured for controlling the magnetic resonance imaging system to acquire the magnetic resonance data during multiple pulse repetitions (302). The pulse sequence commands are configured for controlling the magnetic resonance imaging system to cause gradient induced spin rephasing at least twice during each of the multiple pulse repetitions using a gradient magnetic field generating system (110, 112). The pulse sequence commands are configured for controlling the magnetic resonance imaging system 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 comprises the at least two magnetic resonance signals acquired during each of the multiple pulse repetitions. Execution of the machine executable instructions further cause the processor to calculate (202) a B0-off-resonance map (158) using the magnetic resonance data, wherein the B0-off-resonance map is descriptive of a B0-off-resonance magnetic field of the magnetic resonance imaging system when the subject is within the imaging zone, wherein the B0-off-resonance map is at least partially calculated using at least two magnetic resonance signals measured during a single pulse repetition. Execution of the machine executable instructions further cause the processor to generate (204) at least one magnetic resonance parametric map by comparing the magnetic resonance data with a magnetic resonance fingerprinting dictionary (152).
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公开(公告)号：US20170319097A1
公开(公告)日：2017-11-09
申请号：US15525145
申请日：2015-10-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： THOMAS ERIK AMTHOR , MARIYA IVANOVA DONEVA , PETER KOKEN , JOCHEN KEUPP , PETER BOERNERT
IPC: A61B5/055 , G01R33/54 , G01R33/50 , G01R33/483 , G01R33/48 , G01R33/563 , G01R33/30
CPC classification number: A61B5/055 , A61B5/4872 , G01R33/307 , G01R33/4828 , G01R33/4835 , G01R33/50 , G01R33/54 , G01R33/563
Abstract: The invention provides for a magnetic resonance imaging system (100) which comprise a magnet (104) and a magnetic field gradient generator (110, 112) for generating a gradient magnetic field within an imaging zone (108). The gradient magnetic field is aligned with a predetermined direction. The magnetic resonance imaging system further comprise a memory (134, 136) for storing machine executable instructions (150, 152, 154), a pre-calculated magnetic resonance fingerprinting dictionary (144), and pulse sequence instructions (140). The pulse sequence instructions cause the magnetic resonance imaging system to acquire the magnetic resonance data according to a magnetic resonance fingerprinting technique. The magnetic resonance fingerprinting technique encodes the magnetic resonance data as slices (125). The pre-calculated magnetic resonance fingerprinting dictionary contains a listing of calculated magnetic resonance signals in response to execution of the pulse sequence instructions for a set of predetermined substances. Execution of the machine executable instructions causes a processor (130) controlling the magnetic resonance imaging system to: acquire (300) the magnetic resonance data by controlling the magnetic resonance imaging system with pulse sequence instructions; divide (302) the magnetic resonance data into a set of slices; calculate (304) the abundance of each of the set of predetermined substances within each of the set of slices by comparing the magnetic resonance data for each of the set of slices with the pre-calculated magnetic resonance fingerprinting dictionary; and calculate (306) a magnetic resonance fingerprint chart by plotting abundance of each of the set of predetermined substances within each of the set of slices as a function of position along the predetermined direction.
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公开(公告)号：US20250031994A1
公开(公告)日：2025-01-30
申请号：US18710650
申请日：2022-10-27
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： KARSTEN SOMMER , SASCHA KRUEGER , JULIEN THOMAS SENEGAS , PETER KOKEN
Abstract: A computer-implemented method is provided for estimating a weight of a patient when supported on a patient table. Optical image data and depth image data are obtained and patient body keypoints are extracted from the optical image data. A first frame is selected which comprises an image of the patient table, by selecting a frame in which no body keypoints are present in the optical image data. A second frame is selected of the patient on the table, by selecting a frame with patient body keypoints and with little or no movement. A patient volume is obtained based on a difference between the depth image data for the first and second frame (or depth data at those times) and the patient weight is estimated from the determined patient volume.
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Patent Agency Ranking
公开(公告)号：US20220206098A1
公开(公告)日：2022-06-30
申请号：US17612066
申请日：2020-05-18
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHRISTOPH GUNTHER LEUSSLER , CHRISTIAN FINDEKLEE , JAN JAKOB MEINEKE , PETER VERNICKEL , PETER KOKEN
IPC: G01R33/565 , G01R33/567 , A61B6/03 , A61B6/00
Abstract: 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.
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公开(公告)号：US20190137585A1
公开(公告)日：2019-05-09
申请号：US16095954
申请日：2017-04-26
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： PETER BORNERT , KAY NEHRKE , MARIYA IVANOVA DONEVA , THOMAS ERIK AMTHOR , PETER KOKEN , GEORGE RANDALL DUENSING
IPC: G01R33/48 , G01R33/56 , G01R33/561 , G01R33/485 , G01R33/50 , G01R33/563
CPC classification number: G01R33/4816 , G01R33/4824 , G01R33/4826 , G01R33/485 , G01R33/50 , G01R33/5602 , G01R33/5605 , G01R33/5608 , G01R33/561 , G01R33/56308 , G01R33/56341
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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公开(公告)号：US20220202386A1
公开(公告)日：2022-06-30
申请号：US17611924
申请日：2020-05-14
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHRISTOPH GÜNTER LEUSSLER , CHRISTIAN FINDEKLEE , JAN JAKOB MEINEKE , PETER VERNICKEL , PETER KOKEN
Abstract: Disclosed is an X-ray system (100, 700) configured for acquiring medical imaging data (134) from a subject (102) at least partially within an imaging zone (105). The X-ray system comprises a memory (128) storing machine executable instructions (130). The X-ray system further comprises a processor (122) configured for controlling the X-ray system. The X-ray system further comprises a pilot tone system (106), wherein the pilot tone 5 system comprises a radio frequency system (108) comprising multiple transmit channel (110) and multiple receive channel (112). The multiple transmit channel is configured for transmitting multiple pilot tone signal (136) via multiple transmit coil (114). The multiple receive channel is configured for receiving pilot tone data (138) via multiple receive coil (116). Execution of the machine executable instructions causes the processor to: transmit 10 (202) the multiple pilot tone signal by controlling the multiple transmit channel; acquire (204) the pilot tone data by controlling the multiple receive channel; and determine (206) a motion state (140, 700, 700′, 702, 702′) of the subject using the pilot tone data.
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公开(公告)号：US20200237334A1
公开(公告)日：2020-07-30
申请号：US16756135
申请日：2018-10-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： PETER KOKEN , JULIEN SENEGAS , MARTIN BERGTHOLDT
IPC: A61B6/00 , H04N5/225 , H04N5/232 , H04N7/18 , G06T7/00 , G06T7/70 , G06T7/11 , G06T5/00 , A61B5/055 , A61B6/04 , A61B6/03 , A61N5/10 , A61B5/00 , A61B5/107
Abstract: The invention provides for a medical apparatus (100, 300, 400) comprising a subject support (102) configured for moving a subject (106) from a first position (124) to a second position (130) along a linear path (134). The subject support comprises a support surface (108) for receiving the subject. The subject support is further configured for positioning the subject support in at least one intermediate position (128). The subject support is configured for measuring a displacement (132) along the linear path between the first position and the at least one intermediate position. Each of the at least one intermediate position is located between the first position and the second position. The medical apparatus further comprises a camera (110) configured for imaging the support surface in the first position. Execution of machine executable instructions 116 cause the a processor (116) controlling the medical apparatus to: acquire (200) an initial image (142) with the camera when the subject support is in the first position; control (202) the subject support to move the subject support from the first position to the second position; acquire (204) at least one intermediate image (144) with the camera and the displacement for each of the at least one intermediate image as the subject support is moved from the first position to the second position; and calculate (206) a height profile (150, 600, 604) of the subject by comparing the initial image and the at least one intermediate image. The height profile is at least partially calculated using the displacement. The height profile is descriptive of the spatially dependent height of the subject above the support surface.
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公开(公告)号：US20200096589A1
公开(公告)日：2020-03-26
申请号：US16468849
申请日：2017-12-06
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： KARSTEN SOMMER , MARIYA IVANOVA DONEVA , THOMAS ERIK AMTHOR , PETER KOKEN , JAN JAKOB MEINEKE
Abstract: The invention provides for a magnetic resonance imaging system (100) for acquiring magnetic resonance data (142) from a subject (118) within a measurement zone (108). The magnetic resonance imaging system (100) comprises: a processor (130) for controlling the magnetic resonance imaging system (100) and a memory (136) storing machine executable instructions (150, 152, 154), pulse sequence commands (140) and a dictionary (144). The pulse sequence commands (140) are configured for controlling the magnetic resonance imaging system (100) to acquire the magnetic resonance data (142) of multiple steady state free precession (SSFP) states per repetition time. The pulse sequence commands (140) are further configured for controlling the magnetic resonance imaging system (100) to acquire the magnetic resonance data (142) of the multiple steady state free precession (SSFP) states according to a magnetic resonance fingerprinting protocol. The dictionary (144) comprises a plurality of tissue parameter sets. Each tissue parameter set is assigned with signal evolution data pre-calculated for multiple SSFP states.
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