CN109330594A - Obtain method, spectroscopic imaging method, system and the medium of the parameter of saturated zone - Google Patents
Obtain method, spectroscopic imaging method, system and the medium of the parameter of saturated zone Download PDFInfo
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Abstract
The present invention relates to method, Magnetic Resonance Spectrum scan imaging method, magnetic resonance system and the computer readable storage mediums of a kind of parameter for obtaining saturated zone.The method of the parameter of above-mentioned acquisition saturated zone by obtaining magnetic resonance image, and further obtains fat region and area-of-interest, then by generating saturated zone, enables saturated zone to cover fat region, finally obtain the parameter of saturated zone.The generation difficulty for greatly reducing saturated zone, simplify obtain saturated zone parameter the step of, to reduce the workload of doctor, improve the working efficiency of doctor.
Description
Technical field
The present invention relates to Magnetic Resonance Spectrums to scan field, method, magnetic more particularly to a kind of parameter for obtaining saturated zone
Resonate wave spectrum scan imaging method, magnetic resonance system and computer readable storage medium.
Background technique
As society is constantly progressive, people are also more and more to the medical demand of magnetic resonance.However, being swept in Magnetic Resonance Spectrum
In retouching, due to fat signal chemical shift, the fat signal for causing region of interest overseas can pollute in area-of-interest
Spectroscopic signal.Therefore, it is necessary to which saturated zone is arranged in area-of-interest periphery before Magnetic Resonance Spectrum scanning, inhibit fat letter
Number, so that magnetic resonance spectral line will not be polluted by being saturated the fat signal of region covering.
The method of the parameter of traditional acquisition saturated zone and is obtained by one or more saturated zone of doctor's manual setting
Corresponding saturated zone parameter.But this operating method needs precise manipulation and very cumbersome, increases the workload of doctor, drops
Low working efficiency.
Summary of the invention
Based on this, it is necessary to which cumbersome problem the step of for the parameter for obtaining saturated zone provides a kind of acquisition saturated zone
Method, magnetic resonance system and the computer readable storage medium of parameter.
A method of obtaining the parameter of saturated zone, which comprises
The magnetic resonance image at position to be scanned is obtained, the magnetic resonance image includes fat region；
Obtain the area-of-interest at the position to be scanned；
Saturated zone is generated based on the area-of-interest, the saturated zone at least covers a part of the fat region；
Obtain the parameter of the saturated zone；
Wherein, the parameter of the saturated zone is for making magnetic resonance system carry out magnetic resonance imaging to the position to be scanned.
The magnetic resonance image for obtaining position to be scanned includes: in one of the embodiments,
The fat image at position to be scanned is obtained based on prescan imaging sequence, the prescan imaging sequence includes following
Any one: DIXON water rouge separation sequence, water signal suppressor pulse sequence or fatty frequency selectivity excitation pulse sequence.
In one of the embodiments, further include:
Judge the saturated zone whether with the area-of-interest there are overlapping regions；
If the saturated zone and the area-of-interest there are overlapping region, adjust the saturated zone so that its not with institute
State area-of-interest overlapping.
The saturated zone has a plurality of in one of the embodiments, the method also includes:
Judge each item saturated zone adjusted whether with the fat region there are overlapping regions；
Wherein, by there is no the saturated zones adjusted of overlapping region to be deleted with the fat region.
The saturated zone includes the first saturated zone in one of the embodiments,；It is described raw based on the area-of-interest
At saturated zone, comprising:
Obtain the profile of the area-of-interest；
Based on the profile of the area-of-interest, polygonal wheel profile is generated；And
Respectively along the direction parallel with each side of the contour line, described the is generated in the outside of the area-of-interest
One saturated zone.
The saturated zone further includes the second saturated zone in one of the embodiments, is set forth in the area-of-interest
Outside generates after first saturated zone, comprising:
Judge whether first saturated zone is completely covered the fat region；
If the fat region can not be completely covered in first saturated zone, the second saturated zone is generated；
Wherein, second saturated zone is for covering the fat region that first saturated zone is exposed.
If the fat region can not be completely covered in first saturated zone in one of the embodiments, give birth to
At the second saturated zone, comprising:
If the fat region can not be completely covered in first saturated zone, respectively along each side with the contour line
In the direction at 45 degree of angles, second saturated zone is generated.
A kind of Magnetic Resonance Spectrum scan imaging method, comprising:
The parameter of saturated zone is obtained using the method for the parameter of above-mentioned acquisition saturated zone；And
Magnetic Resonance Spectrum is carried out using the parameter of the saturated zone to scan to obtain Magnetic Resonance Spectrum scan image.
A kind of magnetic resonance system can be run on a memory and on a processor including memory, processor and storage
Computer program, which is characterized in that the processor realizes the parameter of above-mentioned acquisition saturated zone when executing the computer program
Method the step of.
A kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step of above method is realized when processor executes.A kind of computer readable storage medium, is stored thereon with computer program, should
The step of method of the parameter of above-mentioned acquisition saturated zone is realized when computer program is executed by processor.
Method, Magnetic Resonance Spectrum scan imaging method, magnetic resonance system and the computer of the parameter of above-mentioned acquisition saturated zone
Readable storage medium storing program for executing by obtaining magnetic resonance image, and further obtains fat region and area-of-interest, then full by generating
And band, enable saturated zone to cover fat region, finally obtains the parameter of saturated zone.The generation for greatly reducing saturated zone is difficult
The step of spending, simplifying the parameter for obtaining saturated zone, to reduce the workload of doctor, improves the working efficiency of doctor.
Detailed description of the invention
Fig. 1 is the schematic diagram of magnetic resonance system in an embodiment；
Fig. 2 is the internal structure chart of image processing equipment unit；
Fig. 3 is the flow diagram that the method for parameter of saturated zone is obtained in an embodiment；
Fig. 4 is the schematic diagram of magnetic resonance image in an embodiment；
Fig. 5 is the schematic diagram of magnetic resonance image in another embodiment
Fig. 6 is the schematic diagram that saturated zone is generated in an embodiment；
Fig. 7 is the schematic diagram that fat region is completely covered in saturated zone in Fig. 6；
Fig. 8 is the schematic diagram that saturated zone is Chong Die with area-of-interest in an embodiment；
Fig. 9 is the schematic diagram that saturated zone is adjusted in Fig. 8；
Figure 10 is the flow diagram that the method for parameter of saturated zone is obtained in a specific embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the schematic diagram of magnetic resonance system in an embodiment.As shown in Figure 1, the system may include the doctor of communication connection
Learn scanning imagery equipment 11, area-of-interest acquiring unit 12, saturation tape handling unit 13 and parameter acquiring unit 15.
Further, medical scanning imaging device 11 includes rack 111 and scanning bed 112, offers scanning in rack 111
Space 110；After patient 10 is fixed on scanning bed 112, scanning bed 112 can be made to enter scanning sky with motion scan bed 112
Between in 110, so that the position (not shown) to be scanned delimited in advance with patient 10 is completely disposed at scanning space 110
In.Scanned position can be treated using different magnetic resonance imaging sequences later and carries out magnetic resonance imaging.For example, in spectral scan
When, the image for the fat region that prescan imaging sequence obtains at position to be scanned can be generated.In other embodiments, may be used
With the magnetic resonance image based on acquisition, the image segmentation algorithms such as Otsu threshold selection method are enabled, figure is carried out to the magnetic resonance image
As segmentation, to obtain corresponding fat region.
After medical imaging unit 11 gets magnetic resonance image, doctor can by virtue of experience delimit one on this image
Closed area, and by the location information of the acquisition of area-of-interest acquiring unit 12 closed area, and add as area-of-interest
With storage.Further, saturation tape handling unit 13 can generate saturated zone in above-mentioned fat region, so that is generated is full
A part of fat region is at least covered with band.Further, the parameter of the available saturated zone of parameter acquiring unit 15.
Please continue to refer to Fig. 1, in some embodiments, above system can also include saturated zone adjustment unit 14.Full
After fat region is covered completely or at least partly covers fat region with the saturated zone generated of tape handling unit 13, saturation
Band detection unit 14 can star judgement process, with judge in magnetic resonance image current existing saturated zone whether with it is interested
There is overlapping in region.Wherein, if judging result is not to be overlapped, it is determined that the saturated zone currently obtained can either cover fatty area
Domain, and will not overlap with area-of-interest.At this point it is possible to via parameter acquiring unit 15 to obtain current all acquisitions
The parameter of saturated zone.The parameter of the saturated zone can be used for the spectral scan at above-mentioned position to be scanned, to incite somebody to action in spectral scan
The complete inhibition of fat signal existing at position to be scanned, is easy to cause so as to avoid the presence due to fat signal
The problems such as chemical shift.
However, in some embodiments, if saturated zone detection unit 14 detects current existing saturated zone and feels emerging
Interesting region overlaps, then can trigger saturation tape handling unit 13 to there is currently saturated zone be adjusted, with guarantee
Saturated zone will not cover area-of-interest；Then, whether saturated zone detection unit 14 can detect again saturated zone adjusted
Fat region can also be completely covered, if testing result is that can be completely covered, can be obtained and be worked as by parameter acquiring unit 15
The parameter of preceding all saturated zones.
In some embodiments, above-mentioned area-of-interest acquiring unit 12, saturation tape handling unit 13, saturated zone detection are single
Member 14 and parameter acquiring unit 15 can integrate in the same electronic equipment, such as on image processing unit.Referring to Fig. 2, Fig. 2
It is the internal structure chart of image processing unit.As shown in Fig. 2, above-mentioned image processing unit may include being connected by system bus
Processor, non-volatile memory medium, built-in storage, communication interface, display device and input unit etc..Above-mentioned place
Reason device can be used for providing calculating and control function, to support the operation of whole operation console.It can in non-volatile memory medium
Store the operating system of the types such as Unix or Windows.Above-mentioned built-in storage can be in non-volatile memory medium
Operating system provides running environment, can be stored with computer-readable instruction fetch, and the computer-readable fetching in the built-in storage
Enable by above-mentioned processor execute when, may make processor execute it is a kind of obtain saturated zone parameter method.Communication interface is available
In with scanning gantry and communication connection, such as control instruction can be sent to scanning gantry, from upper downloading image quality parameter.It is above-mentioned
Display device can be liquid crystal display or electric ink display screen etc.；Input unit can be the touch covered on display screen
Layer, be also possible to the physical button being arranged in computer equipment, trace ball or touch panel etc., can also be it is external such as
Physical keyboard, dummy keyboard, Trackpad or mouse etc..It will be understood by those skilled in the art that structure shown in Figure 2, only
It is the block diagram of part-structure relevant to application scheme, does not constitute the ustomer premises access equipment that application scheme is applied thereon
Restriction, specific ustomer premises access equipment may include than more or fewer components as shown in the figure, or the certain components of combination, or
Person has different component layouts.
The present embodiment provides a kind of method of parameter for obtaining saturated zone, this method is applied in above-mentioned magnetic resonance system.
Fig. 3 is the flow diagram that the method for parameter of saturated zone is obtained in one embodiment, as shown in figure 3, the above method can wrap
Include following steps:
Step S1 obtains the magnetic resonance image at position to be scanned, which includes fat region.
Specifically, Magnetic Resonance Spectrum scanning can be carried out to the position to be scanned of sufferer, wherein during spectral scan
Fat signal can be excited by the prescan imaging sequence using prescan imaging sequence, so that area to be scanned
The fat signal that fat in domain is fed back is more strong.Also, in the magnetic resonance image of acquisition, there are fat regions and non-
Fat region.
In some embodiments, above-mentioned prescan imaging sequence may include DIXON water rouge separation sequence, water signal inhibition
Pulse train and fatty frequency selectivity excitation pulse sequence.In this embodiment, prescan imaging sequence selects DIXON water rouge
Separation sequence, this kind of sequence are insensitive to magnetic field unevenness, even if the Distribution of Magnetic Field in the scanning space of the magnetic resonance system
Unevenly, the fat that high quality still can be obtained by applying DIXON water rouge separation sequence during spectral scan is schemed
Picture.In addition, fat region is determined in compared to the prior art from magnetic resonance image using image partition method, in the present embodiment
The fat location determined using the method for DIXON water rouge separation sequence is more accurate.
Step S2 obtains the area-of-interest at position to be scanned.
Specifically, Fig. 4 is the schematic diagram of magnetic resonance image in one embodiment, as shown in figure 4, in the magnetic resonance image
Adipose tissue regions and brain regions are distributed with, and draw the area-of-interest for having a rectangle in brain regions.
Fig. 5 is the schematic diagram of magnetic resonance image in another embodiment.As shown in figure 5, can indicate magnetic resonance figure with " 1 "
The gray value of pixel occupied by fat region, is indicated in magnetic resonance image with " 0 " occupied by non-fat region as in
The gray value of pixel.In some embodiments, doctor by virtue of experience can choose arbitrary region conduct in non-fat region
Area-of-interest (rectangular area as illustrated in the drawing), wherein area-of-interest refers in magnetic resonance image, and doctor thinks pair
The diagnosis of sufferer has the image-region of positive effect.
Step S3 generates saturated zone based on area-of-interest, which at least covers a part of fat region.
Specifically, after step S2, fat region and area-of-interest can be obtained simultaneously.In order to make
In spectral scan imaging process, the fat signal saturation that the fat in the region to be scanned of patient issues is needed above-mentioned rouge
Fat region is covered with saturated zone.
Fig. 6 is the schematic diagram that saturated zone is generated in one embodiment, as shown in fig. 6, in some embodiments, being initially generated
Saturated zone usually can be in endless rectangle.Boundary line (the i.e. square area in Fig. 5 of area-of-interest can first be obtained
Four edges boundary line), and it is (i.e. shown in figure along the four edges of the rectangle to generate four saturated zones A1, A2, A3, A4 respectively
Shadow region).It, can be in the region where saturated zone A1, to the pixel in each region by taking saturated zone A1 as an example
Gray value is tested, if wherein there is the pixel that gray value is " 1 ", can determine that saturated zone A1 covers fatty area
Domain；Conversely, if can determine that saturated zone A1 does not cover there is no the pixel that any gray value is " 1 " in this region
Lid fat region, at this point it is possible to which this saturated zone is deleted.In the present embodiment, A1, A2, A3, A4 cover partial fat
Region, therefore can further the parameter to each saturated zone (such as width of saturated zone) be adjusted.
Fig. 7 is the schematic diagram that fat region is completely covered in saturated zone in Fig. 6, as shown in fig. 7, in some embodiments, it can
To adjust the parameter of A1, A2, A3, A4 simultaneously, for example a picture is each extended over towards the direction away from region of interest border every time
The length of vegetarian refreshments, and after each extend, can detecte the pixel of each column in magnetic resonance image, judge whether there is also
Gray value is not fallen within for the pixel of " 1 " in the region that above-mentioned four saturated zones are covered, if all gray values are the pixel of " 1 "
Point is capped, it can determines that the fat region in magnetic resonance image is saturated with completely covered.However, art technology
Personnel should be appreciated that the saturated zone of initial setting up can be any quantity, and can generate in any way in magnetic resonance figure
As upper.In addition, the mode for adjusting saturated zone is also not limited to the mode mentioned in the present embodiment, for example, in some embodiments
In, it can also be when detecting the presence of partial fat region and not falling within the region that saturated zone is covered, respectively in above-mentioned rectangle sense
The side of the separate area-of-interest at four angles in interest region respectively increases a saturated zone, and each saturated zone newly increased can
With the four edges of above-mentioned rectangle area-of-interest to be in respectively 45 degree of angles, and can test again to magnetic resonance image, if
There is also partial fat region is uncovered, can this it is uncovered to fat region in generate saturated zone again, until
All fat regions saturated zone present on present day magnetic resonance image in magnetic resonance image covers.
Step S4: the parameter of saturated zone is obtained.
Specifically, after generating and adjusting saturated zone, the parameter of available saturated zone, for making magnetic resonance system
System treats scanned position and carries out Magnetic Resonance Spectrum scanning.
The method of the parameter of above-mentioned acquisition saturated zone, by obtain magnetic resonance image, and further obtain fat region and
Area-of-interest, then by generating saturated zone, enable saturated zone to cover fat region, finally obtain the parameter of saturated zone.Greatly
The step of reducing the generation difficulty of saturated zone greatly, simplifying the parameter for obtaining saturated zone, so that the workload of doctor is reduced,
Improve the working efficiency of doctor.
In some embodiments, can also further judge whether saturated zone is Chong Die with area-of-interest；If saturated zone is not
It is Chong Die with the area-of-interest, then obtain the parameter of saturated zone.
Since the image of area-of-interest is required key images when diagnosing to sufferer, therefore need as true as possible
It is not Chong Die with area-of-interest to protect saturated zone.
Specifically, it can successively judge whether the pixel that each is located in region of interest border falls into saturated zone institute
In the region of covering, if wherein there is some pixel to be covered by certain saturated zone, the parameter of adjustable this saturated zone,
So that this saturated zone no longer includes pixel.In some embodiments, judgment method, which can be, takes any one pixel, and
Judge the pixel whether each saturated zone any two opposite side the same side, if can determine the picture in the same side
Vegetarian refreshments is not covered by this saturated zone.Please continue to refer to Fig. 7, borderline each pixel of area-of-interest is respectively positioned on
The same side of saturated zone A1, A2, A3, A4, the i.e. boundary of area-of-interest do not fall within the region that saturated zone is covered, then can be with
Determine that entire area-of-interest is not saturated band and is covered.At this point it is possible to determine that the saturated zone had both completely covered fatty area
Domain, and it is not covered with area-of-interest, reach the requirement of Magnetic Resonance Spectrum scanning.Saturated zone in available magnetic resonance image
The parameter of A1, A2, A3, A4, to be scanned for subsequent Magnetic Resonance Spectrum.
The method of the parameter of acquisition saturated zone in based on the above embodiment, it is in some embodiments, interested if it exists
Pixel in region be saturated band covered, then can further adjust saturated zone so that this saturated zone not with it is interested
Region overlapping.
Fig. 8 is the schematic diagram that saturated zone is Chong Die with area-of-interest in an embodiment.As shown in figure 8, in magnetic resonance image
It is covered with saturated zone C1 (shadow region i.e. shown in figure), saturated zone C1 has been configured as that magnetic resonance image is completely covered
On fat region (i.e. region occupied by " 1 " in Fig. 8), however, detection saturated zone C1 whether with area-of-interest weight
When folded, discovery is in saturated zone there are pixel c1, c2 in area-of-interest (square area i.e. shown in figure) and is covered
In the region of lid, at this point it is possible to adjust the parameter of saturated zone C1.Fig. 9 is the schematic diagram that saturated zone is adjusted in Fig. 8.Such as Fig. 9 institute
Show, can constantly adjust the parameter of saturated zone C1, keep it no longer Chong Die with area-of-interest.
However, fat region may be no longer completely covered during continuous adjustment in saturated zone C1 please continue to refer to Fig. 9.
At this point it is possible to new saturated zone C2 be generated, so that this saturated zone C2 carries out the fat region that saturated zone C1 is omitted before
Covering.In further embodiments, if saturated zone no longer covers fat region during continuous adjustment, i.e., not with fat region
There are overlapping regions, then can delete this saturated zone.
Further, due to generating new saturated zone, thus also need further to detect this saturated zone C2 whether with
Area-of-interest overlaps.In the present embodiment, it can detecte the pixel in all area-of-interests be not saturated
In the region covered with C2.Hence, it can be determined that fat region can either be completely covered in saturated zone C1 and saturated zone C2, and not
Can be Chong Die with area-of-interest, the parameter of saturated zone C1 and saturated zone C2 can be obtained, further to be used for subsequent magnetic
Resonate spectral scan.
However, in some embodiments, if above-mentioned saturated zone C2 be confirmed as having occurred with area-of-interest it is be overlapped, can
To adjust its parameter, so that saturated zone C2 no longer covers any one pixel in area-of-interest.Further, some
In embodiment, the fat region whether saturated zone C1 and C2 can also be completely covered in magnetic resonance image can detecte, if can,
Then the parameter of available saturated zone C1 and C2 for subsequent Magnetic Resonance Spectrum to scan.If however, saturated zone C1 and C2
Fat region can not be completely covered, then can further generate saturated zone C3.The subsequent operation to C3 and phase in above-described embodiment
It is similar, it repeats no more.The operation in above-described embodiment can be recycled, until all saturated zones in magnetic resonance image can either cover
All fat regions are covered, and will not be Chong Die with area-of-interest.At this point it is possible to obtain there is currently all saturated zones ginseng
Number, to be scanned for subsequent Magnetic Resonance Spectrum.
Optionally, in the embodiment of the present invention parameter of saturated zone may include saturation pulse application position and saturation pulse
Apply direction.It can determine saturation pulse sequence according to the parameter of saturated zone, so that it is determined that including saturation pulse sequence and imaging
Scanning sequence including sequence.It should be understood that saturation pulse sequence should be applied to before imaging sequence, so that fat signal
The acquisition of area-of-interest signal is carried out in repressed situation.
Magnetic resonance system in based on the above embodiment, the present embodiment further provide for the specific acquisition saturated zone of one kind
The method of parameter.Figure 10 is the flow diagram that the method for parameter of saturated zone is obtained in a specific embodiment.As shown in Figure 10,
This method may comprise steps of:
Step S20: record patient registration's information generates DICOM file and is stored in magnetic resonance system.
Specifically, it needs first to carry out physical examination to patient before carrying out patient Magnetic Resonance Spectrum scanning, check every
Physiological parameter, for example determine that patient can be scanned, determine the position that patient needs to be scanned, it can be with the note of typing patient
Volume information, generates digital imaging and communications in medicine (the Digital Imaging and that store patient registration's information
Communications in Medicine, abbreviation DICOM) file, the position for needing to scan comprising patient in the DICOM file
Information, wherein the position for needing to scan can be one or multiple, for example, in the present embodiment imaging object wait sweep
Retouching position can be thoracic cavity.
Step S21: patient is fixed on to the designated position on scanning bed.
Specifically, patient should can be firmly secured on scanning bed, be not susceptible to be displaced during the scanning process, and suffer from
Person is before carrying out Magnetic Resonance Spectrum scanning it is noted that cannot carry metal with inspection.
Step S22: the magnetic resonance image at position to be scanned is obtained.
Specifically, it can control the scanning bed scanning space that is moved to be scanned, wherein DIXON method can be used
For water rouge isolation technics to obtain the magnetic resonance image comprising fat region of high quality, which is usually pre-scan images.
Step S23: fat region and area-of-interest are obtained.
It specifically, can be by the image segmentation algorithms such as big saliva threshold values selection method or water rouge isolation technics in prescan
Fat region and non-fat region are determined in image.Then, can by after segmentation as the result is shown over the display, and by doctor
Or it is area-of-interest that technician, which delimit the arbitrary region in non-fat region,.
Step S24: saturated zone is generated, so that fat region is completely covered in saturated zone.
Specifically, one or more saturated zone can be generated in magnetic resonance image, and enables saturation region complete
All standing fat region.Specific generation step is similar in above-described embodiment, and therefore not to repeat here.
Step S25: judge whether saturated zone is Chong Die with area-of-interest.
Specifically, the pixel in each area-of-interest can be successively examined, judges whether that being saturated band is covered.If
Every saturated zone is all not covered with area-of-interest, then can determine that fat region can either be completely covered in the saturated zone of acquisition,
It will not overlap again with area-of-interest, S28 can be entered step at this time.However, if it exists certain saturated zone with it is interested
There is overlapping in region, then can determine that currently obtained saturated zone is unsatisfactory for needing, and can enter step S26.In this step
In, specific deterministic process is similar in above-described embodiment, and therefore not to repeat here.
Step S26: adjusting the parameter of saturated zone, so that saturated zone is not Chong Die with area-of-interest.
Specifically, be overlapped if detecting that saturated zone has occurred with area-of-interest, the size of adjustable saturated zone,
The parameters such as position and direction, so that saturated zone no longer overlaps with area-of-interest.The process of specific adjustment parameter with it is upper
State similar in embodiment, therefore not to repeat here.
Step S27: judge whether saturated zone adjusted is completely covered fat region.
Specifically, after adjustment saturated zone makes saturated zone not Chong Die with area-of-interest, saturation can be brought into again
Row detection.If detecting that fat region can be completely covered in saturated zone, it can determine that currently obtained saturated zone can
Fat region is enough completely covered, and will not overlap with area-of-interest, S28 can be entered step at this time.It otherwise, can be true
Surely fat region can not be completely covered in the saturated zone obtained, at this time return step S24.Specific deterministic process with it is above-mentioned
Similar in embodiment, therefore not to repeat here.
Step S28: the parameter of saturated zone is obtained.
Specifically, fat region can either be completely covered obtaining, and it is full to overlap with area-of-interest
After band, it can determine that the saturated zone can satisfy the needs of Magnetic Resonance Spectrum scanning.At this point it is possible to record the position of saturated zone
It sets, the parameters such as direction and width, and the sweep parameter that the parameter of the saturated zone is used for Magnetic Resonance Spectrum scanning sequence is arranged.?
When carrying out Magnetic Resonance Spectrum scanning to above-mentioned position to be scanned, above-mentioned magnetic resonance imaging sequence can be used, at this point, above-mentioned full
It can be saturated pulse suppression with adipose tissue corresponding to region, so that fatty group in the region that saturated zone is covered
Knit signal will not on the Magnetic Resonance Spectrum of acquisition imaging.
The present embodiment provides a kind of Magnetic Resonance Spectrum scan imaging methods, comprising the following steps: using in above-described embodiment
Acquisition saturated zone parameter method obtain saturated zone parameter；And saturation pulse is determined using the parameter of the saturated zone
Sequence；Apply saturation pulse sequence respectively in area-of-interest and imaging sequence carries out Magnetic Resonance Spectrum scanning to obtain magnetic resonance
Spectral scan image.
The present embodiment provides a kind of magnetic resonance system, including memory, processor and storage on a memory and can located
The computer program run on reason device, the processor performs the steps of acquisition when executing the computer program to be scanned
The magnetic resonance image at position, the magnetic resonance image include fat region；Obtain the area-of-interest at the position to be scanned；Base
Saturated zone is generated in the area-of-interest, the saturated zone at least covers a part of the fat region；It obtains described full
With the parameter of band；Wherein, the parameter of the saturated zone may include the application position of saturation pulse and the application direction of saturation pulse,
Can determine saturation pulse sequence according to the parameter of saturated zone, the sequence can be used for making magnetic resonance system to the position to be scanned into
Row magnetic resonance imaging.
The present embodiment provides a kind of computer readable storage mediums, are stored thereon with computer program, the computer program
Following steps are realized when being executed by processor: obtaining the magnetic resonance image at position to be scanned, and the magnetic resonance image includes fat
Region；Obtain the area-of-interest at the position to be scanned；Saturated zone is generated based on the area-of-interest, the saturated zone is extremely
A part of the fat region is covered less；Obtain the parameter of the saturated zone；Wherein, the parameter of the saturated zone is for making magnetic
Resonance system carries out magnetic resonance imaging to the position to be scanned.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a non-volatile computer and can be read
In storage medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage is situated between
Matter can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM) etc..
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.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of method for the parameter for obtaining saturated zone, which is characterized in that the described method includes:
The magnetic resonance image at position to be scanned is obtained, the magnetic resonance image includes fat region；
Obtain the area-of-interest at the position to be scanned；
Saturated zone is generated based on the area-of-interest, the saturated zone at least covers a part of the fat region；
Obtain the parameter of the saturated zone；
Wherein, the parameter of the saturated zone is for making magnetic resonance system carry out magnetic resonance imaging to the position to be scanned.
2. the method according to claim 1, wherein the magnetic resonance image for obtaining position to be scanned includes:
The fat image at position to be scanned is obtained based on prescan imaging sequence, the prescan imaging sequence includes below
It anticipates one kind: DIXON water rouge separation sequence, water signal suppressor pulse sequence or fatty frequency selectivity excitation pulse sequence.
3. the method according to claim 1, wherein further include:
Judge the saturated zone whether with the area-of-interest there are overlapping regions；
If the saturated zone and the area-of-interest there are overlapping region, adjust the saturated zone so that its not with the sense
The overlapping of interest region.
4. according to the method described in claim 3, it is characterized in that, the saturated zone have it is a plurality of, the method also includes:
Judge each item saturated zone adjusted whether with the fat region there are overlapping regions；
Wherein, by there is no the saturated zones adjusted of overlapping region to be deleted with the fat region.
5. the method according to claim 1, wherein the saturated zone includes the first saturated zone；It is described to be based on institute
It states area-of-interest and generates saturated zone, comprising:
Obtain the profile of the area-of-interest；
Based on the profile of the area-of-interest, polygonal wheel profile is generated；And
Respectively along the direction parallel with each side of the contour line, it is full that described first is generated in the outside of the area-of-interest
And band.
6. according to the method described in claim 5, it is characterized in that, the saturated zone further includes the second saturated zone, be set forth in institute
After outside generation first saturated zone for stating area-of-interest, comprising:
Judge whether first saturated zone is completely covered the fat region；
If the fat region can not be completely covered in first saturated zone, the second saturated zone is generated；
Wherein, second saturated zone is for covering the fat region that first saturated zone is exposed.
If 7. according to the method described in claim 6, it is characterized in that, first saturated zone can not be completely covered it is described
Fat region then generates the second saturated zone, comprising:
If the fat region can not be completely covered in first saturated zone, respectively along each side with the contour line in 45
The direction at angle is spent, second saturated zone is generated.
8. a kind of Magnetic Resonance Spectrum scan imaging method characterized by comprising
The parameter of saturated zone is obtained using method described in claim 1 to 7 any one；And
Magnetic Resonance Spectrum is carried out using the parameter of the saturated zone to scan to obtain Magnetic Resonance Spectrum scan image.
9. a kind of magnetic resonance system, which is characterized in that on a memory and can be in processor including memory, processor and storage
The computer program of upper operation, which is characterized in that the processor realizes claim 1 to 7 when executing the computer program
Any one of the method the step of.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
It is realized when processor executes such as the step of any one of claim 1 to 7 the method.
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