CN208384093U - Magnetic resonance line coil assembly and magnetic resonance scanning system - Google Patents
Magnetic resonance line coil assembly and magnetic resonance scanning system Download PDFInfo
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- CN208384093U CN208384093U CN201821115673.1U CN201821115673U CN208384093U CN 208384093 U CN208384093 U CN 208384093U CN 201821115673 U CN201821115673 U CN 201821115673U CN 208384093 U CN208384093 U CN 208384093U
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Abstract
The utility model relates to a kind of magnetic resonance line coil assemblies, comprising: shell；Multiple coil units, multiple coil units are set in the shell；One or more pressure detecting sensors, one or more pressure detecting sensors are set to the surface of the shell or the inside of the shell, and the pressure detecting sensors are corresponding with multiple coil units, the pressure detecting sensors are able to detect the respiratory movement of patient, and generate breath signal based on the respiratory movement.Breathing detection module is integrated on a shell by above-mentioned magnetic resonance line coil assembly, and use the same data transmission system, reduce the cost of breathing detection module, simplify the workflow of Abdominal MRI scanning, and patient respiratory is not required to have in steady state, the success rate of abdomen scanning is improved, sweep time is saved.The invention also discloses a kind of magnetic resonance scanning systems.
Description
Technical field
The utility model relates to field of magnetic resonance imagings, more particularly to a kind of magnetic resonance line coil assembly and magnetic resonance imaging
System.
Background technique
Contemporary magnetic resonance system mainly includes magnet, gradient coil, radio-frequency coil, the several subsystems of receives link.By surpassing
Magnetizer generates a uniform static magnetic field, excites proton Spin precession to generate magnetic resonance signal by radio-frequency sending coil,
Spatial information encode is carried out to signal using gradient coil.Above-mentioned magnetic resonance signal is acquired by RF receiving coil, by receiving
Link is converted to digital signal, finally obtains magnetic resonance image using computer reconstruction.
An important component of the RF receiving coil as magnetic resonance system, has magnetic resonance system picture quality
Decisive role.Array reception coil is widely used at present, has signal-to-noise ratio high, coverage area is flexible, easy to use to wait spies
Property.
In magnetic resonance examination, possible error source or generate artifact the reason of be patient movement.Since magnetic resonance is clapped
It takes the photograph and requires certain time, so most importantly making patient's quiet Horizon in the operational process of entire magnetic resonance examination
It lies.When carrying out the inspection of abdomen/chest area, often because of stomach wall undulatory motion caused by the abdominal respiration of patient, in magnetic resonance figure
Generate semilune or streak motion artifacts as the fat of upper high RST and water equivalent tisssues can move with stomach wall, image definition by
It influences.
When existing magnetic resonance imaging is scanned for abdomen images, for avoid the magnetic resonance of respiration interference thorax abdomen at
Picture, makes magnetic resonance imaging generate artifact, and the general artifact for generating respiratory movement using respiratory gating technology is reduced.Current exhales
Inhaling in gating technology checking process requires patient respiratory frequency and amplitude to keep relative stability, therefore needs that patient is trained to exhale before checking
The rhythm and pace of moving things is inhaled, but some patientss tend not to be well matched with due to the factors such as older or nervous, subject is caused to breathe section
Disorder is restrained, stomach wall is inconsistent with the undulatory motion frequency and amplitude of breathing, affects respiratory gating technology in Abdominal MRI
Application effect in imaging inspection causes magnetic resonance image more serious respiration artefacts occur, influences the detection of lesion and examines
It is disconnected.It includes the elasticity breathing bandage and independent pressure sensing separated with receiving coil that respiratory gating technology, which needs equipment to be used,
Breath signal is introduced into MR scanning system by device, the respiratory gating technology, and using breathing compensation technique and respiratory triggering skill
Art handles breath signal.Existing breathing compensation technique and respiratory triggering technical requirements patient respiratory are uniformly accurately to catch
Catch exhalation cycle.
Existing respiratory gating technology, coil and the separation of breathing detection module, and use two sets of independent data transmission systems
System, higher cost, workflow are complicated.
Utility model content
Based on this, it is necessary to be directed to existing respiratory gating technology, coil and the separation of breathing detection module, and use two sets
Independent data transmission system, higher cost, the problem of workflow complexity, provides a kind of magnetic resonance line coil assembly and magnetic resonance is swept
Retouch system.
A kind of magnetic resonance line coil assembly, comprising:
Shell, including first surface and the second surface opposite with the first surface；
Multiple coil units, multiple coil units are set in the shell, for receiving magnetic resonance imaging process
The magnetic resonance signal that middle patient body position generates；
One or more pressure detecting sensors, one or more pressure detecting sensors are set to the shell
Surface or the inside of the shell, and the pressure detecting sensors are corresponding with multiple coil units, the pressure
Detection sensor is able to detect the respiratory movement of patient, and generates breath signal based on the respiratory movement.
In one of the embodiments, further include: breathing comparison module is connect with the pressure detecting sensors, can
The breath signal that the pressure detecting sensors generate is received, and based on the one or more coils of breath signal control
Unit is acquired magnetic resonance signal.
The magnetic resonance line coil assembly further includes at least one signal transmission module in one of the embodiments, described
Signal transmission module is electrically connected with multiple coil units and the pressure detecting sensors, for receiving the magnetic resonance
Signal and breath signal, and the magnetic resonance signal and breath signal are transferred to back-end controller.
The signal transmission module is set to the first surface or second surface in one of the embodiments,.
Multiple coil units are along planar arrangement in one of the embodiments, and transversely with it is longitudinal at least one
Direction expansion distribution.
Magnetic resonance line coil assembly further includes pressure pad in one of the embodiments, the pressure detecting sensors setting
In in the pressure pad.
The signal transmission module includes at least low-noise amplifier in one of the embodiments,.
A kind of magnetic resonance scanning system, comprising:
Superconducting magnet detects space around being formed；
Hospital bed can support patient, be placed in the detection space that the superconducting magnet is formed, and can be relative to described super
Magnetizer movement；
Magnetic resonance line coil assembly is placed on patient body surface, for receiving patient's body in the detection space
The magnetic resonance signal that position generates, the magnetic resonance line coil assembly includes shell, multiple coil units for being set in the shell
And be attached to one or more pressure detecting sensors of the case surface, the pressure detecting sensors with it is multiple described
Coil unit is corresponding, and the pressure detecting sensors are able to detect the respiratory movement of patient.
The magnetic resonance line coil assembly further includes breathing comparison module in one of the embodiments, with multiple pressures
The connection of power detection sensor can receive the breathing that multiple pressure detecting sensors are issued based on the respiratory movement detected
Signal, and the magnetic resonance signals acquired based on the one or more that the breath signal receives multiple coil units.
The magnetic resonance scanning system in one of the embodiments, further include:
Gradient coil is connect, for generating gradient pulse with the magnetic resonance line coil assembly；
Processor is connect with the magnetic resonance line coil assembly and gradient coil, can be received multiple pressure detections and be passed
The breath signal that sensor is sent, and control the gradient coil in the respirometric displacement maximum period and generate maximum ladder
Pulse is spent, the gradient coil is controlled in the respirometric displacement minimum period and generates the smallest gradient pulse.
Breathing detection module is integrated on a shell by above-mentioned magnetic resonance line coil assembly and magnetic resonance scanning system, and is made
With the same data transmission system, the cost of breathing detection module is reduced, simplifies the workflow of Abdominal MRI scanning, and
Patient respiratory is not required to have to improve the success rate of abdomen scanning in steady state, save sweep time.
Detailed description of the invention
Fig. 1 is the schematic diagram of the magnetic resonance line coil assembly of the embodiments of the present invention；
Fig. 2 is the schematic diagram of the magnetic resonance line coil assembly of the embodiments of the present invention；
Fig. 3 is the schematic diagram of the coil unit of the embodiments of the present invention；
Fig. 4 is the schematic diagram of the coil unit of the embodiments of the present invention；
Fig. 5 is the schematic diagram of the signal transmission module of the embodiments of the present invention；
Fig. 6 a is the schematic diagram of the magnetic resonance line coil assembly of the embodiments of the present invention；
Fig. 6 b is the another schematic diagram of the magnetic resonance line coil assembly of the embodiments of the present invention；
Fig. 7 is the schematic diagram of the magnetic resonance scanning system of the embodiments of the present invention.
Specific embodiment
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, Fig. 1 and Fig. 2 are the magnetic resonance line coil assembly of the embodiments of the present invention
Schematic diagram, Fig. 3 and Fig. 4 are the schematic diagram of the coil unit of the embodiments of the present invention.Fig. 1 shows to be the magnetic resonance line
For coil assembly towards the side of human body, Fig. 2 shows to be the magnetic resonance line coil assembly away from the side of human body.In the present embodiment
In, the magnetic resonance line coil assembly is applied to abdomen imaging or dorsal images in MRI scan etc..
In the present embodiment, the magnetic resonance line coil assembly include shell 10, coil unit 11, breathing detection module 12,
Signal transmission module 13 and breathing comparison module.The shell 10 includes first surface and opposite with the first surface the
Two surfaces, certain shell 10 are also referred to as shell.The coil unit 11 be it is multiple, be set in the shell 10, be used for
The magnetic resonance signal that patient body position generates during reception magnetic resonance imaging；The breathing detection module 12 is set to described
The surface of shell 10 or the inside of the shell 10, for detecting the respiratory movement of patient, and based on the breathing fortune detected
It is dynamic to generate breath signal.The signal transmission module 13 is electrically connected with the coil unit 11 and the breathing detection module 12
It connects, after receiving the magnetic resonance signal and/or breath signal and being transferred to the magnetic resonance signal and/or breath signal
Side controller.The breathing comparison module is connect with the breathing detection module 12, can receive the breathing detection module 12
The breath signal of generation, and magnetic resonance letter is acquired based on the one or more coil units of breath signal control
Number.
In Fig. 1 and embodiment shown in Fig. 2, the magnetic resonance line coil assembly can be covered on human abdomen's use.?
In other embodiments, the magnetic resonance line coil assembly can be placed on human body back use.
Specifically, one layer or multilayer flexible material can be set into the shell 10, which can be EVA bubble
The high molecular materials such as cotton or resin, fiber.In one embodiment, shell 10 can be set to bandage, can stretch, is curved
Bent, torsion or deformation etc., and bandage has certain pliability and flexibility, and the coil unit 11 and breathing inspection can be improved
Survey the compactness of module 12 and patient.In other embodiments, the shell 10 can be other devices.Correspondingly, it exhales
Inhaling detection module 12 may be alternatively provided as flexible sensor.
Specifically, the coil unit 11 is surface coils.The surface coils is attached to the inside of shell 10, and can ring
Should in the movement of shell 10 corresponding elongation or between each other move relative to each other.
In Fig. 3 and embodiment shown in Fig. 4, multiple coil units 11 are along planar arrangement, multiple coil lists
Member 11 transversely with longitudinal at least one direction expansion distribution, the angle of multiple coil units 11 distribution arrangement between any two
It can be the arbitrary value between 0 ° to 180 °.In Fig. 3 and embodiment shown in Fig. 4, the multiple coil units 11 are along cross
It is unfolded to be distributed to longitudinal both direction.In other embodiments, multiple coil units 11 can only transversely or only edge
Genesis analysis.
In Fig. 3 and embodiment shown in Fig. 4, multiple coil units 11 are scattered in two rows, and all coils unit
11 are present in same level.In other embodiments, multiple coil units 11 can be scattered in three rows, four rows, only
Two rows need to be at least scattered in, increase the coil unit 11 density can effectively improve coil coverage at image quality
Amount.
In the embodiment shown in fig. 3, it overlaps between the two neighboring coil unit 11.
In the embodiment shown in fig. 4, it overlaps between two laterally adjacent coil units 11, it is longitudinally adjacent
It overlaps between two coil units 11.
In the present embodiment, the coil unit 11 is made using elastic conductor material, in other embodiments, institute
It states coil unit 11 and uses liquid metals molding making.
In the present embodiment, the breathing detection module 12 is set to 10 first surface of shell or inside, for examining
Survey breath signal of patient during magnetic resonance imaging.Specifically, the breathing detection module 12 includes pressure pad and one
Or multiple pressure detecting sensors, the pressure detecting sensors are corresponding with the coil unit 11, such as: it can be set to one
A pressure detecting sensors are corresponding with multiple coil units 11；Alternatively, multiple pressure detecting sensors and more
A coil unit 11 is corresponding.The pressure detecting sensors are set in the pressure pad, and the pressure pad contacts human body
When, pressure detecting sensors induction human abdomen or back because of pressure change caused by respiratory movement and believe pressure change
Export breath signal to the signal transmission module 13 after number processing.In the present embodiment, the breathing detection module 12 is arranged
In the center of 10 first surface of shell.In other embodiments, the breathing detection module 12 can be set in institute
State the other positions of 10 first surface of shell.In the present embodiment, the breathing detection module 12 is set to the shell 10 and pastes
In the one side of person of modern times's body.
Fig. 5 is referred to, Fig. 5 is the schematic diagram of the signal transmission module 13 of the embodiments of the present invention.Specifically, described
Signal transmission module 13 includes low-noise amplifier 131 and filter 132.The coil unit 11 passes the magnetic resonance signal
The low-noise amplifier 131 is given, the breathing detection module 12 sends the breath signal to the low noise amplification
Device 131.The low-noise amplifier 131 is used as the received first order of signal, and gain directly determines the noise coefficient of link,
Therefore it needs then to avoid signal between different frequency bands from being mutually concerned with using the low-noise amplifier 131 of high-gain, the filter 132
It disturbs.Treated magnetic resonance signal and breath signal are sent to the controller of rear end by the filter 132.In other embodiments
In, the signal transmission module 13 can only include low-noise amplifier 131.
Specifically, the quantity of defeated signal transmission module 13 can be 1 or multiple.In the present embodiment, institute
The quantity for stating signal transmission module 13 is 1.In other embodiments, the quantity of the signal transmission module 13 can be more
It is a, to adapt to the cabling of 11 Internal cable of coil unit, need to only reach the breath signal and magnetic resonance signal transmission
To the effect of back-end controller.
Specifically, the signal transmission module 13 is set to the second surface, and is set to center.In this implementation
In example, the signal transmission module 13 is electrically connected with the coil unit 11 and the breathing detection module 12, for receiving
The magnetic resonance signal and breath signal, and the magnetic resonance signal and breath signal are transferred to back-end controller.Other
In embodiment, the signal transmission module 13 be can be set in the other positions of the second surface.
In the present embodiment, the signal transmission module 13 passes through wireless transmission method for the magnetic resonance signal and breathing
Signal is transferred to back-end controller.In other embodiments, the signal transmission module 13 can be transmitted by optical fiber, radio frequency passes
The magnetic resonance signal and breath signal are transferred to back-end controller by least one of defeated mode.
Fig. 6 a is referred to, Fig. 6 a is the schematic diagram of the magnetic resonance line coil assembly of the embodiments of the present invention.It is shown in Fig. 6
Embodiment in, the breathing detection module 12 and signal transmission module 13 are all set in the first surface of the shell 10.Institute
Stating first surface is one side of the shell 10 close to human body.
Optionally, the breathing detection module 12 can also be provided at the inside of shell, can perceive external pressure.Figure
6b is the another schematic diagram of the magnetic resonance line coil assembly of the embodiments of the present invention.Breathing detection module 12 and signal transmit mould
Block 13 is all set in the inside of the shell 10, as described in being attached on the wall of 10 inside of shell.Certainly, magnetic resonance line coil assembly
The breathing detection module 12 can be also set to the inside of the shell 10, the signal transmission module 13 is set to shell
10 surface.
In one embodiment, respiratory movement can correspond to the maximum period (dominant bit of diaphragm motion of displacement when being filled gas
At shifting)；Respiratory movement can correspond to the minimum period (at the least displacement of diaphragm motion) of displacement when exhaling to the greatest extent, breathe comparison module
Perform the following operations: when pressure detecting sensors instruction position fall in the respiration gate control presentation time, just allow corresponding coil unit
11 carry out the acquisition of data.
Referring to Fig. 7, Fig. 7 is the schematic diagram of the magnetic resonance scanning system of the embodiments of the present invention.
In the present embodiment, the magnetic resonance scanning system includes superconducting magnet 700, hospital bed 710, above-mentioned magnetic resonance coil
Component 720, gradient coil 730 and processor 740, the superconducting magnet 700 is around formation detection space.710 energy of hospital bed
Patient is enough supported, is placed in the detection space that the superconducting magnet 700 is formed, and can be transported relative to the superconducting magnet 700
It is dynamic.The magnetic resonance line coil assembly 720 is placed on patient body surface, for receiving patient's body in the detection space
The magnetic resonance signal that position generates, the magnetic resonance line coil assembly includes shell, multiple coil units for being set in the shell
And be attached to one or more pressure detecting sensors of the case surface, the pressure detecting sensors with it is multiple described
Coil unit is corresponding, such as: it is corresponding with multiple coil units to can be set to the pressure detecting sensors；Or
Person, multiple pressure detecting sensors are corresponding with multiple coil units, and multiple pressure detecting sensors can be examined
Survey the respiratory movement of patient.The gradient coil 730 is connect with the magnetic resonance line coil assembly 720, for generating gradient pulse,
To be encoded to collected magnetic resonance signal.The processor 740 and the magnetic resonance line coil assembly 720 and gradient coil
730 connections, can receive the breath signal that multiple pressure detecting sensors are sent, and the respirometric displacement most
The big period controls the gradient coil 730 and generates maximum gradient pulse, in the minimum period control of the respirometric displacement
The gradient coil 730 generates the smallest gradient pulse.
Existing respiratory gating technology generally using breathing compensation technique and respiratory triggering technology to breath signal at
Reason is to reduce the artifact that respiratory movement generates.Breathing compensation technique refers to system according to the breath signal detected to determine phase
Coding.Breath signal is fused in magnetic resonance scanning system by breathing detection module 12, in the entire respiratory cycle, to exhaling
The magnetic resonance signal for inhaling period similar times point uses similar phase code.Random phase caused by respiratory movement original in this way
Offset, because the integration of breath signal carries out becoming regular variation after phase rearranges, the artifact with high frequency randomness is believed
It number will be pushed through the edge in the visual field, to reduce or substantially eliminate the motion artifacts in the visual field.
Respiratory triggering technology then refers to that a period of time before patient's normal respiration to air-breathing next time is respiratory movement phase
It to the plateau of stopping, being scanned within plateau, betiding the acquisition of magnetic resonance signals period, respiratory movement is opposite to be stopped
Plateau, respiratory movement artifact will be significantly reduced.The respiratory triggering technology can be collected according to breathing comparison module
The last respiratory cycle is arranged automatically, adjusts sweep parameter in real time.
Breathing compensation technique and respiratory triggering technology require patient respiratory uniformly accurately to capture exhalation cycle.
Specifically, the patient respiratory state that the breathing comparison module is judged, including at least normal cycle of respiration and not
Even breathing period two states.
In the present embodiment, the first relatively breathing of front and back twice is all after the breathing comparison module receives the breath signal
Phase carries out corresponding acquisition to obtain the respiratory state of patient.If patient respiratory is uniform, normal acquisition magnetic resonance signal is simultaneously
The artifact that respiratory movement generates is reduced using breathing compensation technique and respiratory triggering technology.If patient respiratory is uneven, use
Self-breathing capturing technology picks up the starting point and end point of patient respiratory, and compensates.In the present embodiment, available
The moving displacement data of human body respiration are to carry out motion compensation.If patient respiratory is extremely uneven, stops scanning and export
Standby signal rescans after prompting medical staff that patient is helped to adjust breathing, if can not still scan after adjustment breathing, determines
Scanning failure.
In one embodiment, respiratory movement can correspond to the maximum period (dominant bit of diaphragm motion of displacement when being filled gas
At shifting)；Respiratory movement can correspond to the minimum period (at the least displacement of diaphragm motion) of displacement when exhaling to the greatest extent, breathe comparison module
Perform the following operations: when pressure detecting sensors instruction position fall in the respiration gate control presentation time, just allow corresponding coil unit
11 carry out the acquisition of data.
Breathing detection module 12 is integrated on coil unit 11 by above-mentioned magnetic resonance line coil assembly and magnetic resonance scanning system,
And the same data transmission system is used, the cost of breathing detection module 12 is reduced, the work of Abdominal MRI scanning is simplified
It flows, and patient respiratory is not required to have to the success rate of abdomen scanning be improved, when saving scanning in steady state
Between.
Data are carried out in the fixed range for the physical feeling that above-mentioned magnetic resonance system only specifies patient's progress monitoring of respiration
Acquisition.The coil unit collecting magnetic resonance signal is just controlled in respiration gate control threshold range.Further, processor can also connect
The data of multiple coil unit acquisitions are received, and rebuild the magnetic resonance figure of the data acquisition body region of multiple coil unit acquisitions
Picture carries out the influence that data acquisition effectively reduces motion artifacts using this system.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of magnetic resonance line coil assembly characterized by comprising
Shell, including first surface and the second surface opposite with the first surface；
Multiple coil units, multiple coil units are set in the shell, for receiving magnetic resonance imaging disease in the process
The magnetic resonance signal that human body part generates；
One or more pressure detecting sensors, one or more pressure detecting sensors are set to the surface of the shell
Or the inside of the shell, and the pressure detecting sensors are corresponding with multiple coil units, the pressure detection
Sensor is able to detect the respiratory movement of patient, and generates breath signal based on the respiratory movement.
2. magnetic resonance line coil assembly according to claim 1, which is characterized in that further include:
Comparison module is breathed, is connect with the pressure detecting sensors, exhaling for the pressure detecting sensors generation can be received
Signal is inhaled, and is acquired magnetic resonance signal based on the one or more coil units of breath signal control.
3. magnetic resonance line coil assembly according to claim 2, which is characterized in that the magnetic resonance line coil assembly further include to
A few signal transmission module, the signal transmission module and multiple coil units and pressure detecting sensors electricity
Connection, is transferred to rear end for receiving the magnetic resonance signal and breath signal, and by the magnetic resonance signal and breath signal
Controller.
4. magnetic resonance line coil assembly according to claim 3, which is characterized in that the signal transmission module is set to described
First surface or second surface.
5. magnetic resonance line coil assembly according to claim 1, which is characterized in that multiple coil units are arranged along plane
Cloth, and be transversely distributed with longitudinal at least one direction expansion.
6. magnetic resonance line coil assembly according to claim 1, which is characterized in that magnetic resonance line coil assembly further includes pressure
Pad, the pressure detecting sensors are set in the pressure pad.
7. magnetic resonance line coil assembly according to claim 3, which is characterized in that the signal transmission module includes at least low
Noise amplifier.
8. a kind of magnetic resonance scanning system characterized by comprising
Superconducting magnet detects space around being formed；
Hospital bed can support patient, be placed in the detection space that the superconducting magnet is formed, and can be relative to the superconducting magnetic
Body movement；
Magnetic resonance line coil assembly is placed on patient body surface, produces for receiving patient's physical feeling in the detection space
Raw magnetic resonance signal, the magnetic resonance line coil assembly include shell, the multiple coil units being set in the shell and
It is attached to one or more pressure detecting sensors of the case surface, the pressure detecting sensors and multiple coils
Unit is corresponding, and the pressure detecting sensors are able to detect the respiratory movement of patient.
9. magnetic resonance scanning system according to claim 8, which is characterized in that the magnetic resonance line coil assembly further includes exhaling
Comparison module is inhaled, is connect with multiple pressure detecting sensors, multiple pressure detecting sensors can be received and be based on inspection
The breath signal that the respiratory movement measured issues, and one or more of multiple coil units is received based on the breath signal
The magnetic resonance signal of a acquisition.
10. magnetic resonance scanning system according to claim 9, which is characterized in that the magnetic resonance scanning system further include:
Gradient coil is connect, for generating gradient pulse with the magnetic resonance line coil assembly；
Processor is connect with the magnetic resonance line coil assembly and gradient coil, can receive multiple pressure detecting sensors
The breath signal of transmission, and control the gradient coil in the respirometric displacement maximum period and generate maximum gradient arteries and veins
Punching controls the gradient coil in the respirometric displacement minimum period and generates the smallest gradient pulse.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115673.1U CN208384093U (en) | 2018-07-13 | 2018-07-13 | Magnetic resonance line coil assembly and magnetic resonance scanning system |
| US16/510,342 US11002816B2 (en) | 2018-07-13 | 2019-07-12 | Coil assembly of magnetic resonance imaging device |
| US17/243,541 US11513179B2 (en) | 2018-07-13 | 2021-04-28 | Coil assembly of magnetic resonance imaging device |
| US18/059,405 US20230106862A1 (en) | 2016-07-13 | 2022-11-28 | Coil assembly of magnetic resonance imaging device |
| US18/163,842 US20230184864A1 (en) | 2018-07-13 | 2023-02-02 | Coil assembly of magnetic resonance imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115673.1U CN208384093U (en) | 2018-07-13 | 2018-07-13 | Magnetic resonance line coil assembly and magnetic resonance scanning system |
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| CN208384093U true CN208384093U (en) | 2019-01-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839514A (en) * | 2019-04-26 | 2020-10-30 | 西门子(深圳)磁共振有限公司 | Method and apparatus for interference correction in respiratory navigation and storage medium |
| CN112315449A (en) * | 2020-11-24 | 2021-02-05 | 上海联影医疗科技股份有限公司 | Magnetic resonance imaging method, system, electronic device, and storage medium |
| CN112401868A (en) * | 2019-08-21 | 2021-02-26 | 西门子(深圳)磁共振有限公司 | Respiration detection device and method and magnetic resonance imaging system |
-
2018
- 2018-07-13 CN CN201821115673.1U patent/CN208384093U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839514A (en) * | 2019-04-26 | 2020-10-30 | 西门子(深圳)磁共振有限公司 | Method and apparatus for interference correction in respiratory navigation and storage medium |
| CN112401868A (en) * | 2019-08-21 | 2021-02-26 | 西门子(深圳)磁共振有限公司 | Respiration detection device and method and magnetic resonance imaging system |
| CN112315449A (en) * | 2020-11-24 | 2021-02-05 | 上海联影医疗科技股份有限公司 | Magnetic resonance imaging method, system, electronic device, and storage medium |
| CN112315449B (en) * | 2020-11-24 | 2023-08-08 | 上海联影医疗科技股份有限公司 | Magnetic resonance imaging method, system, electronic device and storage medium |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |