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1.发明申请公开(公告)号：US20230101609A1
公开(公告)日：2023-03-30
申请号：US17954483
申请日：2022-09-28
发明人： Fang Dong , Yan Tu Huang
IPC分类号： G01R33/565 , G06T5/50 , G06T5/00 , G01R33/54
摘要： In a motion correction method, a reference navigation image is obtained before MR data collection is performed on a target region of interest; in a process of performing the MR data collection on the target region of interest, motion detection is performed using a pilot tone signal received by a plurality of coils, and when a motion is detected, MR data collected when the motion occurs is marked as motion damage data; a post-motion navigation image is obtained when the end of the motion is detected by utilizing the pilot tone signal; registration is performed on the post-motion navigation image and the reference navigation image to obtain a motion correction parameter corresponding to the motion; and motion correction on the MR data collection is performed using the motion correction parameter. The method according to the present disclosure advantageously improves MR imaging quality.
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2.发明申请公开(公告)号：US20200337643A1
公开(公告)日：2020-10-29
申请号：US16858264
申请日：2020-04-24
发明人： Nan Xiao , De He Weng , Yan Tu Huang , Qiong Zhang
IPC分类号： A61B5/00 , A61B5/055 , G01R33/565
摘要： In a method for correcting the interference in respiratory navigation, transmitting, during magnetic resonance scanning, a respiratory signal generated by a radio frequency signal generator to a human body; acquiring, as a measured respiratory signal, a respiratory signal passing through the human body and acquired in a local coil, wherein the measured respiratory signal is constituted by a real respiratory signal and an interference signal; determining, according to a respiratory signal coil sensitivity of the real respiratory signal and an interference signal coil sensitivity of the interference signal, a signal relation that is satisfied by the real respiratory signal, the interference signal and the measured respiratory signal; and calculating the signal relation to obtain the real respiratory signal.
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公开(公告)号：US10393841B2
公开(公告)日：2019-08-27
申请号：US15611994
申请日：2017-06-02
发明人： Yan Tu Huang , Zhi Guo Sun
IPC分类号： G01R33/54 , G01R33/36 , G01R33/3415
摘要： In a magnetic resonance coil selection method and selection computer, a range parameter of a target region (ROI) to be detected is acquired, and a detection range parameter of each available coil is acquired. A coil having a detection range that overlaps with a range of the ROI is determined and then selected. The selected coil is then used in the operation of a magnetic resonance scanner to acquire magnetic resonance data. The SNR of the magnetic resonance scanner is thereby increased, so as to improve the imaging quality.
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公开(公告)号：US20170350953A1
公开(公告)日：2017-12-07
申请号：US15611994
申请日：2017-06-02
发明人： Yan Tu Huang , Zhi Guo Sun
IPC分类号： G01R33/54 , G01R33/36 , G01R33/341 , G01R33/56
CPC分类号： G01R33/543 , G01R33/3415 , G01R33/3664
摘要： In a magnetic resonance coil selection method and selection computer, a range parameter of a target region (ROI) to be detected is acquired, and a detection range parameter of each available coil is acquired. A coil having a detection range that overlaps with a range of the ROI is determined and then selected. The selected coil is then used in the operation of a magnetic resonance scanner to acquire magnetic resonance data. The SNR of the magnetic resonance scanner is thereby increased, so as to improve the imaging quality.
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公开(公告)号：US20220230318A1
公开(公告)日：2022-07-21
申请号：US17576174
申请日：2022-01-14
发明人： Yan Tu Huang
摘要： A medical imaging method for detecting a movement and a magnetic resonance imaging system, wherein the method includes: receiving, through a plurality of channels, a plurality of original first time domain signals recording a movement of an object under examination; transforming, based on a plurality of respiratory frequency components as bases, the plurality of first time domain signals into a vector matrix including representations of phases; computing an eigenvector based on the vector matrix; transforming the first time domain signals into second time domain signals based on the eigenvector, and removing a maximum energy term related to a respiratory movement from the second time domain signals; and determining whether a portion of a non-respiratory body movement is detected, and determining to execute a sequence based on only a first time domain signal in which a portion of a non-respiratory body movement is not detected.
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公开(公告)号：US20220057465A1
公开(公告)日：2022-02-24
申请号：US17405285
申请日：2021-08-18
发明人： Shu Qun Xie , Yan Tu Huang , Fang Dong
摘要： A signal processing method including receiving an original reference radio frequency signal from a receiving antenna group; receiving the time series of the control signal associated with the transmission event of the radio frequency pulses; synchronizing the time series with the original reference radio frequency signal, and determining the echo train in the original reference radio frequency signal in a repetition time of the pulse sequence, wherein the echo train corresponds to the part of the time series associated with the transmission event of the radio frequency pulses in time sequence; setting the sampling points in the domains of the starting point and a first ending point of the echo train; and generating a fitting signal based on the sampling points to eliminate the radio frequency interference signal resulted from the transmission event of the radio frequency pulses.
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公开(公告)号：US10353025B2
公开(公告)日：2019-07-16
申请号：US15336980
申请日：2016-10-28
发明人： Yong Chen , Chao Ming He , Yan Tu Huang , JianMin Wang
IPC分类号： G01V3/00 , G01R33/341 , G01R33/36 , G01R33/54
摘要： Disclosed in embodiments of the present invention are a local coil for an MRI system and a method of use, and an MRI system. The local coil comprises: a storage module, for storing a coil file, the coil file comprising configuration attribute information of the local coil; an interface module, for communication with the outside; a control module, for reading the coil file from the storage module and sending the coil file to the outside via the interface module, or receiving the coil file from the outside and storing the coil file in the storage module.
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公开(公告)号：US20170123034A1
公开(公告)日：2017-05-04
申请号：US15336980
申请日：2016-10-28
发明人： Yong Chen , Chao Ming He , Yan Tu Huang , JianMin Wang
IPC分类号： G01R33/58 , G01R33/30 , G01R33/341
CPC分类号： G01R33/341 , G01R33/36 , G01R33/543
摘要： Disclosed in embodiments of the present invention are a local coil for an MRI system and a method of use, and an MRI system. The local coil comprises: a storage module, for storing a coil file, the coil file comprising configuration attribute information of the local coil; an interface module, for communication with the outside; a control module, for reading the coil file from the storage module and sending the coil file to the outside via the interface module, or receiving the coil file from the outside and storing the coil file in the storage module.
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公开(公告)号：US20230112929A1
公开(公告)日：2023-04-13
申请号：US17956964
申请日：2022-09-30
发明人： Yan Tu Huang , Fang Dong
IPC分类号： G06T11/00 , G06T7/30 , G01R33/48 , G01R33/565
摘要： An MR imaging method and apparatus and a computer-readable storage medium. The method includes: collecting MR signal data every set time interval according to a stack-of-stars scheme or stack-of-spirals scheme, where in each time interval, MR signal data of each of a plurality of parallel slices arranged along a slice direction is collected as a k-space slice, and the k-space slices of the plurality of parallel slices are stacked into a k-space column along the slice direction; in a process of collecting the MR signal data, performing motion detection by utilizing a pilot tone signal, and marking MR signal data collected during a body motion as motion damage data when the body motion is detected; and performing motion correction on MR signal data after the motion damage data for k-space columns successively collected in a plurality of time intervals, and obtaining a current MR image based on MR signal data obtained after the motion correction and MR signal data before the motion damage data.
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10.发明授权公开(公告)号：US11369317B2
公开(公告)日：2022-06-28
申请号：US16858264
申请日：2020-04-24
发明人： Nan Xiao , De He Weng , Yan Tu Huang , Qiong Zhang
IPC分类号： A61B5/00 , G01R33/565 , A61B5/055 , A61B5/08
摘要： In a method for correcting the interference in respiratory navigation, transmitting, during magnetic resonance scanning, a respiratory signal generated by a radio frequency signal generator to a human body; acquiring, as a measured respiratory signal, a respiratory signal passing through the human body and acquired in a local coil, wherein the measured respiratory signal is constituted by a real respiratory signal and an interference signal; determining, according to a respiratory signal coil sensitivity of the real respiratory signal and an interference signal coil sensitivity of the interference signal, a signal relation that is satisfied by the real respiratory signal, the interference signal and the measured respiratory signal; and calculating the signal relation to obtain the real respiratory signal.
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