CN106019187A - Magnetic-resonance carotid plaque radiofrequency imaging coil - Google Patents
Magnetic-resonance carotid plaque radiofrequency imaging coil Download PDFInfo
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- CN106019187A CN106019187A CN201610584247.1A CN201610584247A CN106019187A CN 106019187 A CN106019187 A CN 106019187A CN 201610584247 A CN201610584247 A CN 201610584247A CN 106019187 A CN106019187 A CN 106019187A
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- magnetic resonance
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- right solenoid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention discloses a magnetic-resonance carotid plaque radiofrequency imaging coil, which is characterized by comprising a left coil shell body, a right coil shell body, a wiring box, a clamping frame and a cable, wherein a coil unit is arranged in each of the left coil shell body and the right coil shell body, each coil unit comprises a matrix loop formed by matching four groups of low-noise amplifying circuits, protective circuits, tuning circuits and decoupling circuits, and the shape of each coil unit and the corresponding matched circuits are different from one another through optimization, so as to adapt to irregular shapes of necks of human bodies. According to the magnetic-resonance carotid plaque radiofrequency imaging coil, the structures of the coil units adopt an optimal design, the magnetic-resonance carotid plaque radiofrequency imaging coil can be closely adhered to a detected portion when in use, the signal transmission efficiency is effectively improved, the signal attenuation is reduced, and the beneficial effects of high definition and high resolution are achieved.
Description
Technical field
The present invention relates to technical field of medical equipment, particularly relate to a kind of modern design, flexible structure, magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil that imaging effect is good.
Background technology
Nuclear magnetic resonance is a kind of biomagnetism nuclear spin imaging technique, magnetic resonance system is typically made up of magnet, gradient system, radio system, computer and ancillary equipment, wherein, radio-frequency coil is the important component part of radio system, radio-frequency coil sends for the identical radio-frequency pulse of exciting human in-house Hydrogen Proton precession frequency, the main field produced by radio-frequency pulse and magnet makes the Hydrogen Proton generation precession of precession in tissue produce magnetic resonance radio frequency signal, processes and imaging through computer.Precession is the result that the little magnetic field that the spin of each Hydrogen Proton produces in human body interacts with the main field in magnetic resonance system.Nuclear magnetic resonance is compared to test modes such as CT, x-ray, nuclear medicine, it does not use ionizing radiation mode, patient is allowed to feel more comfortable, and magnetic resonance imaging system can create the image of any angle in the case of not moving patient, obtain multiple image type, picture contrast is high, and detection more accurately facilitates.
Owing to having aforementioned features, nuclear magnetic resonance has evolved to be applicable to the radio frequency imaging coil at the multiple position of human body, particularly key position and the most progressively puts into application.But carotid artery coil of the prior art mostly is Open architecture or the external structure of fixedly embedded formula, very flexible, no matter the size of neck size, it is all in same unlimited cavity, therefore carotid artery coil presents with large-size, multi-passage design interior in a big way mostly, it is only limitted to cervical region use, and detection site of can not preferably fitting, affect definition and the resolution etc. of different size of cervical region imaging.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil, it is novel in design, flexible structure, and easy to use, imaging effect is good, applied widely.
For realizing above-mentioned technical purpose, the technical solution adopted in the present invention is:
nullA kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil，For obtaining the tissue resonance signal at position to be detected，And send tissue resonance signal to magnetic resonance main frame，It is characterized in that: described magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil includes left coil housing、Right solenoid housing、Rosette、Clamping frame and cable，Described clamping frame connects left coil housing and right solenoid housing，It is equipped with coil unit in left coil housing and right solenoid housing，Cable connecting line coil unit and rosette，Described coil unit includes by four groups of low noise amplifier circuits、Protection circuit、Tuning circuit and decoupling circuit match composition matrix circuit，Receive tissue resonance signal by coil unit and be amplified、Protection、Tuning and decoupling process，Shape and the corresponding match circuit of each coil unit are different through optimizing，To adapt to the irregular shape of neck，Rosette is provided with the interface circuit that the signal parameter organizing resonance signal and magnetic resonance main frame to require after being processed by coil unit matches，And the tissue resonance signal after being processed by rosette sends magnetic resonance main frame to by cable.
As preferably, arc elastic part that described clamping frame by damping shaft, is arranged at damping shaft both sides, the universal connection fork being arranged at the arc elastic part other end form, on the lateral wall of described left coil housing and right solenoid housing, fixing seat is set, by the universal fork that connects, clamping frame is removably installed on fixing seat.
As preferably, described fixing seat arranges the cable interface connecting cable.
As preferably, the medial wall that described left coil housing directly contacts with position to be detected with right solenoid housing is arranged to arcwall face.
As preferably, described left coil housing and right solenoid housing are additionally provided with dismountable bandage, by bandage, left coil housing and right solenoid housing are fixed on position to be detected.
As preferably, the outer surface of described left coil housing and right solenoid housing is provided with EVA cushion, increases the comfortableness of tester.
The present invention uses the radio frequency coil designs of two-piece type, and surface configuration and the circumference of every solenoid housing design according to body curve, can fit tightly with scanned position, it is thus achieved that preferably fill factor, curve factor.Being respectively arranged with the coil unit of four matrix circuit compositions in two panels solenoid housing, this local high density coil unit structure can obtain local tomography superelevation signal to noise ratio.Also can support the picture that is accelerated in three dimension directions, space, save sweep time, suppress motion artifacts, and improve the flow rate that patient checks, thus obtain higher economic benefit.The loading condition that residing imaging position is different is optimized by the most each coil unit by matrix circuit, can improve the signal to noise ratio of imaging further.In addition, the custom-designed detachable connection support of the present invention can effectively connect two panels coil component, in addition to cervical region imaging, also can effectively fit ancon, the positions such as carpal joint realize multiple location imaging, also can do the various local tomographies such as thyroid imaging, parotid gland imaging after removing connection support, really realize a coil multiple use, effectively reduce the purchase cost of hospital.
Owing to have employed technique scheme, the present invention has the following technical effect that the magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil of the present invention, make to optimize design to the structure of coil, during use, coil housing physical ability fits tightly detection site, it is effectively improved effectiveness, reduce signal attenuation, reach high-resolution and high-resolution beneficial effect.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of a preferred embodiment of the present invention；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the structured flowchart of the coil unit in the present invention.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, in addition to mutually exclusive feature and/or step, all can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, all can be by other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, an example during each feature is a series of equivalence or similar characteristics.
nullIt is a preferred embodiment of the present invention as shown in Figures 1 to 4，I.e. a kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil，For obtaining the tissue resonance signal at position to be detected，And send tissue resonance signal to magnetic resonance main frame 10，Including left coil housing 1、Right solenoid housing 2、Rosette 3、Clamping frame 4 and cable 5，Described clamping frame 4 connects left coil housing 1 and right solenoid housing 2，It is equipped with coil unit 7 in left coil housing 1 and right solenoid housing 2，Cable 5 connecting line coil unit 7 and rosette 3，Clamping frame 4 is by damping shaft 41、It is arranged at the arc elastic part 42 of damping shaft 41 both sides、It is arranged at universal connection fork 43 composition of arc elastic part 42 other end，Fixing seat 6 is set on the lateral wall of described left coil housing 1 and right solenoid housing 2，By the universal fork 43 that connects, clamping frame 4 is removably installed on fixing seat 6，On fixing seat 6, the cable interface 61 connecting cable 5 is set.Wherein, coil unit 7 includes being matched the matrix circuit formed by four groups of low noise amplifier circuits 71, protection circuit 72, tuning circuit 73 and decoupling circuit 73; receive tissue resonance signal by coil unit 7 and be amplified, protect, tune and decoupling process; shape and the corresponding match circuit of each coil unit 7 are different, to adapt to the irregular shape of neck through optimizing.
When the magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil of the present invention uses, shape and the corresponding match circuit of coil unit are different through optimizing, can adapt to the irregular shape of neck, as used the coil unit of dish topological arrangement structure, it is accelerated into picture in three dimension directions, space by the special space topological arrangement knot in coil unit, the tissue resonance signal received is amplified, decouples and after tuning etc. processes, be sent in rosette carry out parameter with magnetic resonance main frame and mate.In addition, rosette is provided with the interface circuit that the signal parameter organizing resonance signal and magnetic resonance main frame to require after being processed by coil unit matches, as carried out the parameter such as impedance and level coupling, and the tissue resonance signal after being processed by rosette sends magnetic resonance main frame to by cable, processes and show the nuclear magnetic resonance result received on magnetic resonance main frame.
As shown in Figure 1 to Figure 3, in the present embodiment, the medial wall that left coil housing 1 directly contacts with position to be detected with right solenoid housing 2 is arranged to arcwall face, surface configuration and the circumference of every solenoid housing design according to body curve, can fit tightly with scanned position, it is thus achieved that preferably fill factor, curve factor.
As further improvement of this embodiment, described left coil housing 1 and right solenoid housing 2 are additionally provided with dismountable bandage, by bandage, left coil housing 1 and right solenoid housing 2 are fixed on position to be detected, conveniently the magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil of the present invention is applied in addition to cervical region imaging, expand to be applied to the image areas such as carpal joint, thyroid imaging also can be done after removing connection support, the various local tomographies such as parotid gland imaging, really realize a coil multiple use, effectively reduce the purchase cost of hospital.
As the another improvement of the present embodiment, the outer surface of left coil housing 1 and right solenoid housing 2 is provided with EVA cushion, increases the comfortableness of tester further.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any new feature disclosed in this manual or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (6)
- null1. a magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil，For obtaining the tissue resonance signal at position to be detected，And tissue resonance signal is sent to magnetic resonance main frame (10)，It is characterized in that: described magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil includes left coil housing (1)、Right solenoid housing (2)、Rosette (3)、Clamping frame (4) and cable (5)，Described clamping frame (4) connects left coil housing (1) and right solenoid housing (2)，It is equipped with coil unit (7) in left coil housing (1) and right solenoid housing (2)，Cable (5) connecting line coil unit (7) and rosette (3)，Described coil unit (7) includes by four groups of low noise amplifier circuits (71)、Protection circuit (72)、Tuning circuit (73) and decoupling circuit (73) match composition matrix circuit，Receive tissue resonance signal by coil unit (7) and be amplified、Protection、Tuning and decoupling process，Shape and the corresponding match circuit of each coil unit (7) are different through optimizing，To adapt to the irregular shape of neck，Rosette (3) is provided with the interface circuit for being matched by the signal parameter that the tissue resonance signal after coil unit (7) process and magnetic resonance main frame (10) require，And the tissue resonance signal after being processed by rosette (3) sends magnetic resonance main frame (10) to by cable.
- A kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil the most according to claim 1, it is characterized in that: arc elastic part (42) that described clamping frame (4) by damping shaft (41), is arranged at damping shaft (41) both sides, universal connection fork (43) being arranged at arc elastic part (42) other end form, fixing seat (6) is set on the lateral wall of described left coil housing (1) and right solenoid housing (2), by the universal fork (43) that connects, clamping frame (4) is removably installed on fixing seat (6).
- A kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil the most according to claim 2, it is characterised in that: the cable interface (61) connecting cable (5) is set on described fixing seat (6).
- A kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil the most according to claim 1, it is characterised in that: the medial wall that described left coil housing (1) directly contacts with position to be detected with right solenoid housing (2) is arranged to arcwall face.
- A kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil the most according to claim 1, it is characterized in that: described left coil housing (1) and right solenoid housing (2) are additionally provided with dismountable bandage, by bandage, left coil housing (1) and right solenoid housing (2) are fixed on position to be detected.
- A kind of magnetic resonance carotid atherosclerotic plaque radio frequency imaging coil the most according to claim 1, it is characterised in that: the outer surface of described left coil housing (1) and right solenoid housing (2) is provided with EVA cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584247.1A CN106019187B (en) | 2016-07-25 | 2016-07-25 | Magnetic resonance carotid plaques radio frequency imaging coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584247.1A CN106019187B (en) | 2016-07-25 | 2016-07-25 | Magnetic resonance carotid plaques radio frequency imaging coil |
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| CN106019187A true CN106019187A (en) | 2016-10-12 |
| CN106019187B CN106019187B (en) | 2018-09-14 |
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| CN201610584247.1A Active CN106019187B (en) | 2016-07-25 | 2016-07-25 | Magnetic resonance carotid plaques radio frequency imaging coil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096722A (en) * | 2018-01-31 | 2018-06-01 | 安徽锐捷信息科技有限公司 | A kind of special magnetic resonance radio frequency coil of radiotherapy |
| CN108107387A (en) * | 2017-12-28 | 2018-06-01 | 江阴万康医疗科技有限公司 | Multi-channel magnetic resonance knee joint shares imaging coil with ankle foot |
| CN110018430A (en) * | 2019-04-19 | 2019-07-16 | 深圳市凯利鹏达医疗科技有限公司 | Carotid artery coil for magnetic resonance system |
| CN111123181A (en) * | 2020-01-20 | 2020-05-08 | 上海东软医疗科技有限公司 | Head and neck radio frequency coil device, scanning bed and magnetic resonance equipment |
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| US20090203990A1 (en) * | 2005-05-05 | 2009-08-13 | Hubert Noras | Reception coil maintaining element for an mr-imaging system |
| CN103293495A (en) * | 2010-07-01 | 2013-09-11 | 梅德拉公司 | Multi-channel endorectal coils and interface devices therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107387A (en) * | 2017-12-28 | 2018-06-01 | 江阴万康医疗科技有限公司 | Multi-channel magnetic resonance knee joint shares imaging coil with ankle foot |
| CN108096722A (en) * | 2018-01-31 | 2018-06-01 | 安徽锐捷信息科技有限公司 | A kind of special magnetic resonance radio frequency coil of radiotherapy |
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| CN111123181A (en) * | 2020-01-20 | 2020-05-08 | 上海东软医疗科技有限公司 | Head and neck radio frequency coil device, scanning bed and magnetic resonance equipment |
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| Publication number | Publication date |
|---|---|
| CN106019187B (en) | 2018-09-14 |
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