CN110286343A - A kind of magnetic resonance radio frequency receiving coil and post processing of image method - Google Patents
A kind of magnetic resonance radio frequency receiving coil and post processing of image method Download PDFInfo
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- CN110286343A CN110286343A CN201910619680.8A CN201910619680A CN110286343A CN 110286343 A CN110286343 A CN 110286343A CN 201910619680 A CN201910619680 A CN 201910619680A CN 110286343 A CN110286343 A CN 110286343A
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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
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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
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- G—PHYSICS
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- 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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
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Abstract
This application discloses a kind of magnetic resonance radio frequency receiving coil and post processing of image methods, wherein magnetic resonance image post-processing approach includes: when carrying out magnetic resonant imaging examination to patient, the point of the development on same plane is not in fixed and arranged at least four in magnetic resonance imaging space, contain the development point in the magnetic resonance image of various sequences so that obtaining, by image processing software, point establishes three-dimensional coordinate system on the basis of the development point, it is reference with the three-dimensional coordinate system, positioning, tracking, compare the specific pixel point in different sequence magnetic resonance image.The application can substantially mitigate the difficulty and workload that staff post-processes magnetic resonance image, reduce the calculation amount of magnetic resonance image the poster processing soft.
Description
Technical field
This application involves a kind of magnetic resonance radio frequency receiving coil and post processing of image methods.
Background technique
Cerebrovascular disease, such as apoplexy, stroke etc. have accounted for the first place of Chinese's cause of death, opposite for vascular test to neglect
Depending on making some people at highest risk miss the chance of early prevention and treatment.Which kind of, which is checked, accurately to assess whether incidence blood vessel has bolt
The danger of plug? nuclear magnetic resonance is the inspection item most affirmed at present.Magnetic resonance can distinguish carotid artery atherosclerosis plaques
Type and ingredient, such as lipid or the rouge core of necrosis, inflammatory tissue, bleeding, thrombus and fibrous cap form.
Magnetic resonance imaging system refers to the imaging device that medical inspection is used for using one kind made of electromagnetic induction phenomenon, a kind of
The medical examination device of high-end large-scale.There are many imaging sequences under different settings, such as T1 weight, T2 weight for magnetic resonance
, the sequence of proton weight etc..The content that various sequences stress observation is different, for example shows the quality of lesion respectively, contains
Water, either with or without bleeding, the cell density of tumour, if fester or outmoded bleeding etc., each sequence can provide one
Divide information, doctor is frequently necessary to integrate image information shown by different sequences, more fully to judge the lesions position of patient
And the state of an illness.
But different sequences, due to certain physical characteristics, the difference of specific requirements, in addition cut a layer direction, the number of plies, thickness,
Resolution ratio etc. is different, it is often necessary to compare, position, track some location points in different sequence images, to judge these
The state of an illness attribute of location point.Especially for some multiple spot lesions, continuous lesion, the lesion properties in each place are also different
If, this positioning between different sequences, compare, track it is just extremely important.
The endovascular atheromatous plaque of incidence is just the case that, moves towards having many bends or curves due to blood vessel, bifurcated
More, the position distribution of atheromatous plaque also examining where judging the property easy to fall off of multiple spot patch simultaneously and positioning it by relative distribution
It is disconnected upper with comparable difficulty.
So doctor is frequently necessary to carry out auxiliary diagnosis by the poster processing soft at present, the poster processing soft is mounted in a high-performance
Work station (host) on.After magnetic resonance machine finishes required clinical examination sequence, image is imported in work station, then is used
The magnetic resonance image that special the poster processing soft analysis imports.
But previously mentioned, even the same interlacing point of patient, the parameter as used by different sequences is different, occurs
Position in the picture is not generally in same level, and also not in same position, this brings very big difficulty to the poster processing soft
Point, calculation amount needed for software is very huge, while doctor also being required to provide many extra process information to software, significantly
Increase the work difficulty and workload of doctor.
Summary of the invention
The purpose of the application, is: in view of the above-mentioned problems, present applicant proposes after a kind of magnetic resonance radio frequency receiving coil and image
Processing method, substantially to mitigate the difficulty and workload that staff post-processes magnetic resonance image, after reducing magnetic resonance image
The calculation amount of processing software.
The technical solution of the application is:
A kind of magnetic resonance image post-processing approach characterized by comprising
When carrying out magnetic resonant imaging examination to patient, it is not in fixed and arranged at least four in magnetic resonance imaging space
Development point on same plane contains the development point so that obtaining in the magnetic resonance image of various sequences, by
Image processing software, point establishes three-dimensional coordinate system on the basis of the development point, is ginseng with the three-dimensional coordinate system
It examines, positions, tracks, the specific pixel point in more different sequence magnetic resonance image.
The application further includes following preferred embodiment based on the above technical solution:
There are four the development point is set altogether.
A part of development point is arranged in first straight line, and the development point of rest part is arranged in second straight line
On, the first straight line and the second straight line are not on same plane.
The development point is made of container and the developing materials loaded in the container.
The developing materials are the mixtures comprising at least two components.
The development point is fixed on RF receiving coil.
It, will be with the development point position pixel with the same characteristics as doubtful in magnetic resonance image obtained
The diagnosis of lesion refers to.
A kind of magnetic resonance radio frequency receiving coil, the coil branch including coil unit and support and the fixed coil unit
Shell is supportted, fixed and arranged at least four is not at the point of the development on same plane on the coil support shell.
The development point is fixed on the surface of the coil support shell.
Hollow sandwich is had in the shell wall of the coil support shell, the coil unit and the development point are both secured to institute
It states in the hollow sandwich in coil support shell shell wall.
The application has the advantages that
The application be arranged in magnetic resonance imaging space it is several can development imaging substances, even and if patient in different sequences
In, the relative position with these developing materials is all constant, therefore can be as a reference point by the position of these developing materials,
The spatial position of different images point is defined with these reference points in different sequences, can substantially mitigate staff to magnetic resonance
The difficulty and workload of post processing of image reduce the calculation amount of magnetic resonance image the poster processing soft.
Detailed description of the invention
The application is described further in the following with reference to the drawings and specific embodiments:
Fig. 1 is the schematic perspective view of neck imaging coil in the embodiment of the present application；
Fig. 2 is the main view figure of neck imaging coil in the embodiment of the present application.
1- coil support shell, 2- development point.
Specific embodiment
Shown in referring to Figures 1 and 2, the post processing of image method of this magnetic resonance imaging disclosed in the present embodiment includes:
When carrying out magnetic resonant imaging examination to patient, in magnetic resonance imaging space (usually magnetic resonance imaging system
Magnetic resonance imaging room) interior numerous development points 2 of fixed and arranged, at least there are four being not on same plane in these development points 2, because
Aforementioned four development points are both secured in imaging space, so the relative position of four development points is fixed.Pass through magnetic resonance imaging
Operation obtains the magnetic resonance image (such as sequence of the sequence of T1 weight, the sequence of T2 weight, proton weight) of a variety of sequences, and
Containing development point in the magnetic resonance image of every kind of sequence.By image processing software, the point on the basis of aforementioned four development points
Establish three-dimensional coordinate system.Obviously, because the position of development point each in magnetic resonance imaging immobilizes, therefore each width magnetic is total
Three-dimensional coordinate system positional relationship having the same in vibration image.Equally by aforementioned image processing software, with aforementioned three
Dimension space coordinate system is reference, and positioning tracks, the specific pixel point in more different sequence magnetic resonance image.
In magnetic resonance image obtained, the development point signal lesion signal common with position is diagnosed has identical spy
Property, so can be referred to development point pixel with the same characteristics as the diagnosis of suspected abnormality.
It is arranged for convenience of the positioning of above-mentioned development point 2, developing materials can be loaded in corresponding container, then inside is filled with
The aforesaid receptacle of aforementioned developing materials is fixed on the appropriate location in above-mentioned magnetic resonance imaging space, and it is specific in the present embodiment this
Four development points 2 are each attached on RF receiving coil.Specifically, shown in referring to Fig.1, which is for examining
Look into the neck imaging coil of human body incidence atheromatous plaque comprising the coil unit (not shown) and branch of multiple annulars
The coil support shell 1 of these coil units is supportted and fixes, the shell wall of coil support shell 1 is internally provided with hollow sandwich, aforementioned each
A coil unit is fixed in hollow sandwich.And the point 2 that develops is fixed on the surface (inner surface or outer surface) of coil support shell 1.
Aforementioned development point 2 can also be fixed in the hollow sandwich of 1 shell wall of coil support shell, or be fixed by fixed frame
At a certain distance from 1 inner or outer side of coil support shell.
Above-mentioned developing materials can be one-component substance, be also possible to the mixing mixed by two or more components
Object.
It should be noted that can also consolidate in above-mentioned magnetic resonance imaging space in some other embodiments of the application
Surely five, six are arranged or is more developed a little, we only need to select to be not on same plane in these development points
Four development points establish the three-dimensional coordinate system as reference.It is of course also possible to directly in above-mentioned magnetic resonance imaging space
The a plurality of developing line of fixed and arranged, each developing line can be considered multiple (or numerous) development point, as long as on these developing lines
Be not on same plane the three-dimensional coordinate system that can be established as reference there are four point (such as power-off of developing line).
For example above-mentioned numerous development point 2 in the present embodiment is just respectively distributed on four developing lines, and form four developing lines.
Certainly, above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to make people much of that
Solution present context is simultaneously implemented accordingly, and the protection scope of the application can not be limited with this.It is all according to the application major technique
The equivalent transformation or modification that the Spirit Essence of scheme is done should all be covered within the scope of protection of this application.
Claims (10)
1. a kind of magnetic resonance image post-processing approach characterized by comprising
When carrying out magnetic resonant imaging examination to patient, it is not in fixed and arranged at least four in magnetic resonance imaging space same
Development point in plane, so that obtaining containing the development point in the magnetic resonance image of various sequences, by image
Processing software, point establishes three-dimensional coordinate system on the basis of the development point, is reference with the three-dimensional coordinate system, fixed
Position tracks, the specific pixel point in more different sequence magnetic resonance image.
2. magnetic resonance image post-processing approach according to claim 1, which is characterized in that the development point is equipped with four altogether
It is a.
3. magnetic resonance image post-processing approach according to claim 1, which is characterized in that a part of development point arrangement
In first straight line, the development point of rest part is arranged in second straight line, the first straight line and the second straight line
It is not on same plane.
4. magnetic resonance image post-processing approach according to claim 1, which is characterized in that the development point by container and
The developing materials loaded in the container are constituted.
5. magnetic resonance image post-processing approach according to claim 4, which is characterized in that the developing materials are comprising extremely
The mixture of few two kinds of components.
6. MR imaging apparatus according to claim 1, which is characterized in that the development point is fixed on radio frequency reception line
On circle.
7. magnetic resonance image post-processing approach according to claim 1, which is characterized in that in magnetic resonance image obtained
In, it is referred to the development point position pixel with the same characteristics as the diagnosis of suspected abnormality.
8. a kind of magnetic resonance radio frequency receiving coil, the coil support including coil unit and support and the fixed coil unit
Shell (1), which is characterized in that fixed and arranged at least four is not at the point of the development on same plane on the coil support shell (1)
(2)。
9. magnetic resonance radio frequency receiving coil according to claim 8, which is characterized in that the development point (2) is fixed on institute
State the surface of coil support shell (1).
10. magnetic resonance radio frequency receiving coil according to claim 8, which is characterized in that the shell of the coil support shell (1)
Hollow sandwich is had in wall, the coil unit and the development point (2) are both secured in coil support shell (1) shell wall
In hollow sandwich.
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