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1.
公开(公告)号:US20180128891A1
公开(公告)日:2018-05-10
申请号:US15807800
申请日:2017-11-09
发明人: Jin-hee JEONG , Jongho LEE
IPC分类号: G01R33/56
CPC分类号: G01R33/5602 , G01R33/4835 , G01R33/561
摘要: Provided are a magnetic resonance imaging (MRI) apparatus and method for obtaining a plurality of MR images having different contrasts by using a single pulse sequence. The MRI apparatus includes a controller configured to control a pulse sequence of one cycle to be applied to a plurality of slices of an object, wherein the one cycle includes a first obtaining section during which a first inversion radio frequency (RF) pulse is applied to a first slice of the object and a second obtaining section during which a second inversion RF pulse is applied to a second slice of the object adjacent to the first slice, and to sequentially obtain a first MR signal for capturing a first MR image of the first slice, a second MR signal for capturing at least one second MR image of the second slice adjacent to the first slice, and a third MR signal for capturing at least one third MR image of the first slice, during the first obtaining section.
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公开(公告)号:US20170131374A1
公开(公告)日:2017-05-11
申请号:US15347110
申请日:2016-11-09
发明人: Sang-cheon CHOI , Jongho LEE , Jeehun KIM , Yoonho NAM
IPC分类号: G01R33/48 , G01R33/567
CPC分类号: G01R33/4828 , G01R33/482 , G01R33/561 , G01R33/5611 , G01R33/5616
摘要: A magnetic resonance imaging (MRI) apparatus, including a scanner configured to emit at least one radio frequency (RF) signal to an object during one repetition time (TR), and to receive echo signals emitted from the object; and a controller configured to transmit one or more control signals to the scanner to control the scanner, wherein the controller may be further configured to control the scanner to emit an RF excitation pulse and a refocusing pulse to the object during the one TR, control the scanner to receive a first echo signal corresponding to a first line of a k-space before an echo time (TE), and to receive a second echo signal corresponding to a second line of the k-space after the TE, and reconstruct a magnetic resonance (MR) image based on the k-space.
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3.
公开(公告)号:US20230162326A1
公开(公告)日:2023-05-25
申请号:US17978264
申请日:2022-11-01
发明人: Jongho LEE , Juhyung PARK
IPC分类号: G06T5/00 , G06T5/50 , G01R33/565 , G01R33/56
CPC分类号: G06T5/002 , G01R33/5608 , G01R33/5659 , G06T5/50 , G06T2207/10088 , G06T2207/20081 , G06T2207/20084 , G06T2207/20212 , G06T2207/30168
摘要: Disclosed is a training method including outputting an MRI signal from a plurality of coils included in an MRI scanner and performing, by a computing device, supervised learning on a post-processing part included in the computing device by using, as training input data, a first image generated using a first group of coils among the plurality of coils and using, as a label, a second image generated using a second group of coils among the plurality of coils.
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公开(公告)号:US20210333346A1
公开(公告)日:2021-10-28
申请号:US16792932
申请日:2020-04-27
发明人: Jongho LEE , Woojin JUNG
摘要: Provided is an MRI data transform device including a transform network unit configured to output prescribed transform information on the basis of MRI data output from an MRI scanner. The MRI data and information about device characteristics of the MRI scanner are input to the transform network unit.
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公开(公告)号:US20240210506A1
公开(公告)日:2024-06-27
申请号:US18329883
申请日:2023-06-06
发明人: Sooyeon JI , Hyeonggeol SHIN , Jongho LEE
CPC分类号: G01R33/5608 , G01R33/58
摘要: A method of generating a quantitative susceptibility mapping (QSM) map capable of reconstructing data having various resolutions using a given network trained at a specific resolution includes preparing a local field map having input resolution resolinput, generating a plurality of sub-images having training resolution resoltrain by resampling the local field map, inputting each of the sub-images into QSMnet_resoltrain, which is an inference network trained with the training resolution, acquiring a plurality of QSM sub-images having the training resolution resoltrain from the inference network, generating one QSM assembled map by assembling the plurality of QSM sub-images, and generating a QSM map (corrected QSM map) from the QSM assembled map by applying a dipole compensation method.
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公开(公告)号:US20220057461A1
公开(公告)日:2022-02-24
申请号:US17168274
申请日:2021-02-05
发明人: Jongho LEE , Dongmyung SHIN
摘要: Disclosed is an MRI control signal providing method including obtaining an initial control variable array including time-series values of a control variable for controlling a spatial profile of an induced magnetic field induced by an MRI scanner, obtaining information about a desired spatial profile of the induced magnetic field in the MRI scanner, calculating a differentiation array obtainable by partially differentiating a predetermined function with respect to the control variable, and calculating a scaled array obtained by scaling the differentiation array with a predetermined scaling factor, and generating an updated control variable array from the initial control variable array by subtracting values of the scaled array from values of the initial control variable array.
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公开(公告)号:US20200258640A1
公开(公告)日:2020-08-13
申请号:US16271910
申请日:2019-02-11
发明人: Jongho LEE , Seung Hong Choi
摘要: A method for a remote medical diagnostic service is disclosed. The method comprises a step of receiving from a terminal, by a service device, a readout result of readout request information including a part or all of medical information and reference medical information, a step of extracting, by the service device, a readout result for expert evaluation, which is content related to the reference medical information, out of the readout result, a step of comparing, by the service device, the readout result for expert evaluation with a reference readout result which is obtained in advance by reading out the reference medical information, and a step of calculating, by the service device, a service level of the medical information readout result, which is content related to the medical information, out of the readout result, based on the comparison result.
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公开(公告)号:US20240076211A1
公开(公告)日:2024-03-07
申请号:US18344393
申请日:2023-06-29
发明人: Jungha PARK , Gimun GWAK , Sungjin KIM , Junggeun LEE , Jongho LEE
IPC分类号: C02F1/469
CPC分类号: C02F1/4695 , C02F2201/46115 , C02F2201/46135 , C02F2201/4614 , C02F2209/40 , C02F2209/44
摘要: Disclosed is a water purifier that includes a deionization device for purifying water with electric power, and a controller electrically connected to the deionization. The deionization device includes a housing and a plurality of electric filters arranged in a plurality of isolation rooms formed in the housing. The controller operates the plurality of electric filters by dividing the plurality of electric filters into a plurality of electric adsorption filters which adsorb ionic materials and at least one electric resting filter which remains in a standby state during a water purification operation, and restart the water purification operation or perform a recycling operation to recycle the plurality of electric filters, depending on whether a restart command for the water purification operation is input within a preset waiting time from a point in time when the water purification operation is stopped.
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公开(公告)号:US20220130802A1
公开(公告)日:2022-04-28
申请号:US17571796
申请日:2022-01-10
发明人: Joonho JUN , Un-Byoung KANG , Sunkyoung SEO , Jongho LEE , Young Kun JEE
IPC分类号: H01L25/065 , H01L23/00
摘要: A semiconductor package may include first and second substrates, which are vertically stacked, a semiconductor device layer on a bottom surface of the second substrate to face a top surface of the first substrate, upper chip pads and an upper dummy pad on the top surface of the first substrate, penetration electrodes, which each penetrate the first substrate and are connected to separate, respective upper chip pads, lower chip pads on a bottom surface of the semiconductor device layer and electrically connected to separate, respective upper chip pads, and a lower dummy pad on the bottom surface of the semiconductor device layer and electrically isolated from the upper dummy pad. A distance between the upper and lower dummy pads in a horizontal direction that is parallel to the first substrate may be smaller than a diameter of the lower dummy pad.
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公开(公告)号:US20220013496A1
公开(公告)日:2022-01-13
申请号:US17168238
申请日:2021-02-05
发明人: Jinwoo PARK , Unbyoung KANG , Jongho LEE , Teakhoon LEE
IPC分类号: H01L25/065 , H01L23/367 , H01L23/16 , H01L23/31 , H01L23/00
摘要: A package structure includes a lower substrate, substrate connection terminals on the lower substrate, a semiconductor package on the substrate connection terminals, the semiconductor package including a package substrate and a first encapsulant covering the package substrate, first underfills between the lower substrate and the semiconductor package, the first underfills covering corner portions of the semiconductor package, as viewed in a plan view, and covering at least one of the substrate connection terminals, and a second underfill between the lower substrate and the semiconductor package, the second underfill covering a side surface of the semiconductor package in a plan view.
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