CN107874758A - The capturing method and system of respiratory cycle in magnetic resonance imaging - Google Patents
The capturing method and system of respiratory cycle in magnetic resonance imaging Download PDFInfo
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- CN107874758A CN107874758A CN201711021469.3A CN201711021469A CN107874758A CN 107874758 A CN107874758 A CN 107874758A CN 201711021469 A CN201711021469 A CN 201711021469A CN 107874758 A CN107874758 A CN 107874758A
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- respiratory cycle
- under inspection
- person under
- capture
- respiratory
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
- A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
Abstract
The embodiments of the invention provide the capturing method and system of respiratory cycle in magnetic resonance imaging a kind of.The embodiment of the present invention passes through in magnetic resonance agreement scanning process,When scanning is to when specifying breathing capture agreement,The display reminding information on interface,The prompting capture respiratory cycle,Judge whether person under inspection's current respiratory cycle is in stable state,If the person under inspection current respiratory cycle is in stable state,It is determined that meet trigger condition,Receive the triggering information of capture respiratory cycle,According to triggering information,Capture the respiratory cycle of person under inspection,Scan operation personnel can be reminded to trigger the capture respiratory cycle in time,Avoid forgetting to capture,Ensure IMAQ in relative stability region,Avoid because artifact is more in image,It is second-rate and need rescan,So as to improve operating efficiency,Solve to a certain extent in the prior art because forgetting that the triggering capture respiratory cycle causes picture quality unqualified,Need multiple scanning,The problem of causing operating efficiency low.
Description
【Technical field】
This programme is related to the catching method of respiratory cycle in communication technical field, more particularly to a kind of magnetic resonance imaging and is
System.
【Background technology】
Magnetic resonance (Magnetic Resonance, MR) scanning is to obtain a kind of important way of medical image, in medical science
Field has the function that important.
Some positions of human body are influenceed greatly by respiratory movement, such as the position such as thoracic cavity, pelvic cavity, belly.Set using magnetic resonance
During the standby progress magnetic resonance imaging to these positions, scanning to trigger agreements (trigger agreements breathe and capture agreement)
When, it is necessary to capture the respiratory cycle of person under inspection, to guide magnetic resonance system to gather picture number in metastable end of breath
There are less motion artifacts according to, the image so gathered, picture quality is preferable.
In the prior art, in magnetic resonance scan sequences, scanning arrive trigger agreements when, scan operation personnel by
Relevant parameter is set to trigger the capture respiratory cycle in the physiological signal card of magnetic resonance system.If scan operation personnel forget to touch
Hair, system is just using the respiratory cycle of acquiescence.If the respiratory cycle of acquiescence and the difference of actual respiratory cycle of person under inspection compare
Greatly, IMAQ is may result in not in relative stability region, and then causes occur serious motion artifacts, picture quality in image
It is unqualified.Thus need to rescan, cause operating efficiency low.
【The content of the invention】
In view of this, this programme embodiment provides the capturing method and system of respiratory cycle in magnetic resonance imaging a kind of,
To solve in the prior art because forgetting that the triggering capture respiratory cycle causes picture quality unqualified, it is necessary to which multiple scanning, causes
The problem of operating efficiency is low.
In a first aspect, the embodiment of the present invention provides the catching method of respiratory cycle in magnetic resonance imaging a kind of, including：
In magnetic resonance agreement scanning process, when scanning is to specified breathing capture agreement, show that first carries on interface
Show information, first prompt message is used to prompt the capture respiratory cycle；
Judge whether the respiratory cycle of current person under inspection is in stable state, if at the respiratory cycle of presently described person under inspection
In stable state, it is determined that meeting trigger condition；
Receive the triggering information of capture respiratory cycle；
According to the triggering information, the respiratory cycle of the person under inspection is captured.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described first carries
Show that information includes the real-time respiratory waveform and respiratory cycle catching press-button of the person under inspection, the respiratory cycle catching press-button is used for
The triggering capture respiratory cycle；
The triggering information for receiving the capture respiratory cycle, including：
Receive and trigger information corresponding to the respiratory cycle catching press-button in response to clicking on.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described first carries
Show that information includes the real-time respiratory waveform and respiratory cycle catching press-button of the person under inspection, the respiratory cycle catching press-button is used for
The triggering capture respiratory cycle；
Methods described also includes：
Judge within a specified time whether receive the clicking operation to the respiratory cycle catching press-button；
If not receiving the clicking operation to the respiratory cycle catching press-button within a specified time, the judgement is carried out
Whether the respiratory cycle of current person under inspection is in stable state, if the respiratory cycle of presently described person under inspection is in stable state,
It is determined that meet trigger condition；
The triggering information for receiving the capture respiratory cycle, including：
Receive in response to meeting to trigger information corresponding to the trigger condition.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described first carries
Show that information includes respiratory cycle catching press-button, the respiratory cycle catching press-button is used to trigger the capture respiratory cycle；
Methods described also includes：
If the respiratory cycle of presently described person under inspection plays pendulum, the respiratory cycle catching press-button is arranged to
State or invisible mode can not be clicked on.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, judge currently by
Whether the respiratory cycle of inspection person is in stable state, including：
Obtain the person under inspection and the specified respiratory cycle breathed before capture agreement is scanned during present scan
Data, as the first respiratory cycle data；
According to the first respiratory cycle data, the average respiratory cycle of the person under inspection is determined；
By the respiratory cycle of presently described person under inspection compared with the average respiratory cycle, comparative result is obtained；
Whether the respiratory cycle for determining presently described person under inspection according to comparative result is in stable state.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, it is described relatively to tie
Fruit is the respiratory cycle of presently described person under inspection and the difference of the average respiratory cycle；
Determine whether the respiratory cycle of presently described person under inspection is in stable state according to comparative result, including：
If the absolute value of the difference is less than the first designated value, determine that the respiratory cycle of presently described person under inspection is in stable
State；Or if the absolute value of the difference is more than or equal to first designated value, determine the breathing of presently described person under inspection
Cycle plays pendulum.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, it is described relatively to tie
Fruit is the respiratory cycle of presently described person under inspection and the ratio of the average respiratory cycle；
Determine whether the respiratory cycle of presently described person under inspection is in stable state according to comparative result, including：
If the ratio is more than the second designated value, determine that the respiratory cycle of presently described person under inspection is in stable state；
Or if the ratio is less than or equal to second designated value, determine that the respiratory cycle of presently described person under inspection is in shakiness
Determine state.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, methods described is also
Including：
During the specified breathing capture agreement is scanned, it is whether abnormal that the respiratory cycle is detected in real time；
If detecting respiratory cycle exception, the second prompt message is shown on interface, second prompt message is used to carry
Show and rescan the specified breathing capture agreement.
Second aspect, the embodiment of the present invention provide the catching method of respiratory cycle in magnetic resonance imaging a kind of, methods described
Including：
In the magnetic resonance agreement scanning process of person under inspection, when scanning is to specified breathing capture agreement, current institute is judged
Whether the respiratory cycle for stating person under inspection is in stable state；
If the respiratory cycle of presently described person under inspection is in stable state, the respiratory cycle of the person under inspection is captured.
The third aspect, the embodiment of the present invention provide the capture systems of respiratory cycle in magnetic resonance imaging a kind of, the system
Including processor and memory；The memory is used for store instruction, when the instruction is by the computing device, causes institute
The system of stating realizes the catching method of respiratory cycle in first aspect or magnetic resonance imaging any one of second aspect.
The embodiment of the present invention has the advantages that：
The embodiment of the present invention, by magnetic resonance agreement scanning process, when scanning is to when specifying breathing to capture agreement,
The first prompt message is shown on interface, prompts the capture respiratory cycle, judges the respiratory cycle of current person under inspection whether in stable
State, if the respiratory cycle of current person under inspection is in stable state, it is determined that meeting trigger condition, receive touching for capture respiratory cycle
Photos and sending messages, according to triggering information, the respiratory cycle of person under inspection is captured, scan operation personnel can be reminded to trigger capture breathing in time
In the cycle, avoid forgetting to capture, make respiratory cycle used in scanning and actual respiratory cycle close to, differ very little, from
And ensure artifact of the IMAQ in relative stability region, reduction image, ensure that picture quality is qualified, avoid due in image
Artifact is more, second-rate and need to rescan, so as to improve operating efficiency.
【Brief description of the drawings】
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this area
For those of ordinary skill, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the first pass example of the catching method of respiratory cycle in magnetic resonance imaging provided in an embodiment of the present invention
Figure.
Fig. 2 is the area protocol schematic diagram in protocol groups in magnetic resonance imaging provided in an embodiment of the present invention.
Fig. 3 is the exemplary plot of the first prompt message provided in an embodiment of the present invention.
Fig. 4 is the second procedure example of the catching method of respiratory cycle in magnetic resonance imaging provided in an embodiment of the present invention
Figure.
【Embodiment】
In order to be better understood from technical scheme, the embodiment of the present invention is retouched in detail below in conjunction with the accompanying drawings
State.
It will be appreciated that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
The term used in embodiments of the present invention is only merely for the purpose of description specific embodiment, and is not intended to be limiting
The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while A and B be present, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or " if detection
(condition or event of statement) " can be construed to " when it is determined that when " or " in response to determine " or " when the detection (condition of statement
Or event) when " or " in response to detecting (condition or event of statement) ".
Embodiment one
The embodiments of the invention provide the catching method of respiratory cycle in magnetic resonance imaging a kind of, this method can be applied
To in the magnetic resonance scan sequences for the human body being had a great influence by respiratory movement.
Fig. 1 is the first pass example of the catching method of respiratory cycle in magnetic resonance imaging provided in an embodiment of the present invention
Figure.As shown in figure 1, in the present embodiment, the catching method of respiratory cycle comprises the following steps in magnetic resonance imaging：
S101, in magnetic resonance agreement scanning process, when scanning is to when specifying breathing to capture agreement, the is shown on interface
One prompt message, the first prompt message are used to prompt the capture respiratory cycle.
S102, judges whether the respiratory cycle of current person under inspection is in stable state, if the respiratory cycle of current person under inspection
In stable state, it is determined that meeting trigger condition.
S103, receive the triggering information of capture respiratory cycle.
S104, according to information is triggered, capture the respiratory cycle of person under inspection.
In set-up procedure before magnetic resonance imaging, scan operation personnel need the position that checks, addition according to person under inspection
Protocol groups, protocol groups include multiple agreements.All agreements in protocol groups arrange according to scanning sequency, after starting scanning, magnetic
Resonant device scans successively according to scanning sequency.In protocol groups, the Trigger agreements comprising trig need to catch only in protocol name
The respiratory cycle is obtained, remaining agreement need not capture the respiratory cycle.
Illustrate.Fig. 2 is the area protocol schematic diagram in protocol groups in magnetic resonance imaging provided in an embodiment of the present invention.
Fig. 2 is referred to, the agreement of serial number 4 to 15 in a protocol groups, the wherein agreement of serial number 8 and serial number 9 are illustrated in Fig. 2
Agreement for Trigger agreements, it is necessary to the respiratory cycle be captured, in Fig. 2 in addition to the agreement of serial number 8 and the agreement of serial number 9
Remaining agreement need not capture the respiratory cycle.
In a protocol groups, generally there are multiple Trigger agreements.In the application, can be to the whole in protocol groups
Trigger agreements all carry out capturing the prompting of respiratory cycle, and the part Trigger agreements in protocol groups can also be captured
The prompting of respiratory cycle.That is, it can need in protocol groups corresponding to the position that checks to specify breathing capture agreement
Part Trigger agreements in whole Trigger agreements or the protocol groups.
, can when specifying Trigger agreements to need the part Trigger agreements in protocol groups corresponding to the position checked
To set which Trigger agreement as specified Trigger agreements by configuration file corresponding to agreement, that is, which is specified
Trigger agreements need to carry out the prompting for capturing the respiratory cycle in scanning.
For example, prompt switch can be set in parameter card interface corresponding to each Trigger agreements by configuration file,
Whether user (referring to scan operation personnel, similarly hereinafter) can need to prompt by the self-defined current Trigger agreements of the prompt switch
Capture the respiratory cycle.
For example, if the user feels that current Trigger agreements are conventional Trigger agreements, it is not necessary to prompting frame, can be with
Prompt switch in corresponding parameter card is arranged to " close ".If the user feels that current Trigger agreements are of little use
Prompt switch in corresponding parameter card can be arranged to " open " by Trigger agreements, it is necessary to prompting frame.
Wherein, the mode for the prompting frame that the first prompt message can eject is shown on interface.First prompt message can be with
Real-time respiratory waveform and respiratory cycle catching press-button including person under inspection, respiratory cycle catching press-button are used to trigger capture breathing week
Phase.
Fig. 3 is the exemplary plot of the first prompt message provided in an embodiment of the present invention.Fig. 3 is referred to, in the figure, the first prompting
Frame is the form of prompting frame, and the upside of prompting frame shows the real-time respiratory waveform of person under inspection, and downside shows that respiratory cycle capture is pressed
Button, i.e., " capture " button below Fig. 3.
It should be noted that Fig. 3 is the example for the first prompt message enumerated, the shape to the first prompt message is not used to
Formula and/or content are defined.For example, in other examples, " capture " button can also be shown in the upside of prompting frame, left side
Or right side, can only show the real-time respiratory waveform of person under inspection in prompting frame, or can only display " capture " button, prompting frame
In can also increase other display contents, such as the text prompt in Fig. 3 " please carries out physiological signal under eupnea state
Capture！”
In the application, the display content of the first prompt message in all Trigger agreements can be configured by configuration file.
So, user's can according to oneself use habit or needs personalized the display content for setting the first prompt message.
For example, certain user feels to observe the real-time respiratory waveform in prompting frame, triggering respiratory cycle catching press-button is fine
With all Trigger agreements can be set to show respiratory waveforms by configuration file, show respiratory cycle catching press-button.
For example, certain user thinks that the real-time respiratory waveform in directly observation prompting frame is very directly perceived, and the respiratory cycle is caught
Obtain button to dislike very much, all Trigger agreements can be set to show respiratory waveform by configuration file, do not show that the respiratory cycle catches
Obtain button.
For example, certain user feels that real-time respiratory waveform need not be observed, and respiratory cycle catching press-button is useful, can be with
All Trigger agreements are set not show respiratory waveform, the catching press-button prompting of display respiratory cycle by configuration file；
For example, certain user feels that real-time respiratory waveform need not be observed, it is not required that respiratory cycle catching press-button, makes to set
Standby triggering capture automatic when meeting trigger condition, can set all Trigger agreements not show by configuration file
Real-time respiratory waveform, respiratory cycle catching press-button is not shown yet.
Step S101 can remind scanning to grasp in time by showing the first prompt message when scanning is to trigger agreements
Make personnel and trigger the capture respiratory cycle, avoid forgetting to capture, make respiratory cycle used in scanning with the actual respiratory cycle as far as possible
Ground approaches, and differs very little, so as to ensure artifact of the IMAQ in relative stability region, reduction image, ensures picture quality
It is qualified, avoid due in image artifact it is more, it is second-rate and need rescan, so as to improve operating efficiency.
Also, by the first prompt message, user can be conveniently by the button triggering capture breathing in prompt message
In the cycle, reduce operation difficulty so that novice users are easier to operate to.So, novice users avoid the need for spending in advance largely
Time go be familiar with and remember how to set capture the respiratory cycle.
In step S102, judge whether the respiratory cycle of current person under inspection is in stable state, if current person under inspection's exhales
The suction cycle is in stable state, it is determined that meeting trigger condition.The step ensure that the capture respiratory cycle is to breathe week in person under inspection
Phase is under stable state what is carried out, so as to ensure that the respiratory cycle of capture is more accurate.
In step S103, the triggering information for capturing the respiratory cycle can have two kinds.Wherein, a kind of triggering information can be used
Householder moves what is sent, for example, user is by clicking on the triggering information that respiratory cycle catching press-button is sent.Another kind triggering information can
To be triggering information that magnetic resonance equipment is sent automatically when judging to meet trigger condition.
Wherein, it can be triggering command etc. to trigger information.
In an exemplary implementation process, the first prompt message includes real-time respiratory waveform and the breathing week of person under inspection
Phase catching press-button, respiratory cycle catching press-button are used to trigger the capture respiratory cycle；The triggering information of capture respiratory cycle is received, can
With including：Receive and trigger information corresponding to respiratory cycle catching press-button in response to clicking on.Under this situation, user is in the first prompting
After information occurs, the capture of respiratory cycle is actively triggered, magnetic resonance equipment triggers the capture respiratory cycle according to the operation of user.
In the application, for user, by clicking on respiratory cycle catching press-button, actively triggering captures respiratory cycle, Ke Yishe
Put the following two kinds situation：
The first situation is the operating time of user not to be limited.That is, occur in the first prompt message
Afterwards, system just waits user to click on respiratory cycle catching press-button always, and user clicks on respiratory cycle catching press-button, and system is just down
Scanning is performed, user does not click on respiratory cycle catching press-button, and system does not just scan down.
Second case is that the operating time of user is limited.That is, setting specified time, user is referring to
Fix time interior click respiratory cycle catching press-button, system just down scans；After at the appointed time having crossed, system is automatically according to sentencing
The disconnected result triggering capture respiratory cycle.
Therefore, in an exemplary implementation process, receive and touched in response to clicking on corresponding to respiratory cycle catching press-button
Photos and sending messages, it can include：Receive and information is triggered corresponding to respiratory cycle catching press-button in response within a specified time clicking on.This
Sample, user actively trigger the capture of respiratory cycle, magnetic resonance equipment root in the specified time after the appearance of the first prompt message
According to the operation triggering capture respiratory cycle of user.
In an exemplary implementation process, the first prompt message includes real-time respiratory waveform and the breathing week of person under inspection
Phase catching press-button, respiratory cycle catching press-button are used to trigger the capture respiratory cycle；The capture side of respiratory cycle in magnetic resonance imaging
Method can also include：Judge within a specified time whether receive the clicking operation to respiratory cycle catching press-button；If specifying
The clicking operation to respiratory cycle catching press-button is not received in time, then carry out judging current person under inspection respiratory cycle whether
In stable state；If the respiratory cycle of current person under inspection is in stable state, it is determined that meeting trigger condition；Receive capture breathing
The triggering command in cycle, including：Receive in response to meeting triggering command corresponding to trigger condition.Under this situation, user is
There is no the capture for actively triggering the respiratory cycle in specified time after the appearance of one prompt message, magnetic resonance equipment is by judging currently
Whether meet default trigger condition, decide whether the automatic triggering capture respiratory cycle.
In an exemplary implementation process, the first prompt message includes respiratory cycle catching press-button, and the respiratory cycle catches
Obtain button be used for trigger capture the respiratory cycle；The acquisition methods of respiratory cycle can also include in magnetic resonance imaging：If currently by
The respiratory cycle of inspection person is played pendulum, and respiratory cycle catching press-button is arranged to that state can not be clicked on or can not seen this
State.When playing pendulum the respiratory cycle, the respiratory cycle of capture differs larger with the actual respiratory cycle, causes image to be adopted
Collection causes artifact in image more, picture quality is poor, it is necessary to rescan not in relative stability region.In this example, exhaling
When the suction cycle is unstable, by being arranged to respiratory cycle catching press-button to click on state or invisible mode, it can prevent
User captures the respiratory cycle in respiratory cycle shakiness clocked flip, so as to avoid producing the image of poor quality.
Below, the concrete mode to " judging whether the respiratory cycle of current person under inspection is in stable state " in step S102
It is illustrated.
In an exemplary implementation process, judge whether the respiratory cycle of current person under inspection is in stable state, can
With including：Obtain person under inspection and the respiratory cycle data specified before Trigger agreements are scanned during the present scan, be used as the
One respiratory cycle data；According to the first respiratory cycle data, the average respiratory cycle of person under inspection is determined；By exhaling for current person under inspection
The cycle is inhaled compared with average respiratory cycle, obtains comparative result；The breathing week of current person under inspection is determined according to comparative result
Whether the phase is in stable state.
After scanning starts, magnetic resonance equipment can starts to gather the respiratory cycle data of person under inspection, and these are counted
According to storage in the buffer, for calculating average respiratory cycle.
In an exemplary implementation process, respiratory cycle and average respiratory cycle of the comparative result for current person under inspection
Difference；Whether the respiratory cycle for determining current person under inspection according to comparative result is in stable state, can include：If difference
Absolute value is less than the first designated value, it is determined that the respiratory cycle of current person under inspection is in stable state；Or the if absolute value of difference
More than or equal to the first designated value, it is determined that the respiratory cycle of current person under inspection plays pendulum.Wherein, the first designated value can
To set based on experience value, 0.2~0.3 times of respiratory cycle is typically set at.
In another exemplary implementation process, respiratory cycle and average breathing week of the comparative result for current person under inspection
The ratio of phase；Whether the respiratory cycle for determining current person under inspection according to comparative result is in stable state, can include：If ratio
Be more than the second designated value, it is determined that the respiratory cycle of current person under inspection is in stable state；Or if ratio is less than or equal to institute
The second designated value is stated, it is determined that the respiratory cycle of current person under inspection plays pendulum.Wherein, the second designated value can be according to warp
Value is tested to set.
In an exemplary implementation process, the catching method of respiratory cycle can also include in magnetic resonance imaging：
During trigger agreements are specified in scanning, it is whether abnormal that the respiratory cycle is detected in real time；If detecting respiratory cycle exception,
The second prompt message is shown on interface, the second prompt message rescans specified trigger agreements for prompting.
Wherein, the respiratory cycle refers to the real-time respiratory cycle and differs bigger compared with foregoing average respiratory cycle extremely,
In one exemplary implementation process, more than or equal to the first designated value, in another described exemplary implementation process
In, more than or equal to the second designated value.The respiratory cycle occurred in scanning trigger protocol procedures image matter extremely caused by meeting
Amount is poor.If after the completion of all agreements scanning of whole protocol groups, pass through the image for post-processing to obtain to the view data of collection
It was observed that poor image quality, it is necessary to which all agreements of whole protocol groups are rescaned.In the example, in scanning trigger
During agreement, detect that the respiratory cycle suggests that extremely and rescan, now, it is only necessary to rescan trigger associations
View, it is not necessary to rescan all accord in protocol groups.So, the number of overall multiple scanning is just reduced, so as to improve
Operating efficiency.
It can be seen that the present invention implements to provide the friendly prompting scheme that the respiratory cycle captures in a kind of magnetic resonance imaging.This hair
Bright embodiment, when scanning captures agreement (Trigger agreements) to breathing, can check in magnetic resonance agreement scanning process
Page ejection prompting frame is shown：1) respiratory waveform of person under inspection, the breathing shape current for scan operation personal observations person under inspection
State, judges whether person under inspection's breathing stablizes；2) respiratory cycle catching press-button, scan operation personnel are prompted to capture the breathing of person under inspection
In the cycle, so as to avoid forgetting capturing, then Trigger agreements are scanned using the respiratory cycle of capture.Had using this programme
Following a few place's advantages, first：Respiratory cycle and actual respiratory cycle used in Trigger agreements are scanned close to, phase
Poor very little.Second：The breathing latter stage that backstage algorithm calculates patient according to the respiratory cycle is in metastable region, ensures figure
As being gathered in relative stability region, so as to ensure that image artifacts are few, picture quality is qualified.3rd：Avoid due to artifact in image
It is more, second-rate and need to rescan, and then improve the operating efficiency of scan operation personnel.Solve to a certain extent
In the prior art because scan operation personnel forget that the triggering capture respiratory cycle causes the picture quality unqualified, it is necessary to repeat to sweep
Retouch, the problem of causing operating efficiency low.
The catching method of respiratory cycle in magnetic resonance imaging provided in an embodiment of the present invention, by being scanned in magnetic resonance agreement
During, when scanning is to specified Trigger agreements, the first prompt message is shown on interface, the capture respiratory cycle is prompted, sentences
Whether the respiratory cycle of disconnected current person under inspection is in stable state, if the respiratory cycle of current person under inspection is in stable state, really
Surely meet trigger condition, receive the triggering information of capture respiratory cycle, according to information is triggered, capture the respiratory cycle of person under inspection,
Scan operation personnel can be reminded to trigger the capture respiratory cycle in time, avoid forgetting to capture, make respiratory cycle used in scanning with
The actual respiratory cycle is close to differing very little, ensure that IMAQ in relative stability region, reduces the puppet in image
Shadow, ensure picture quality it is qualified, avoid due in image artifact it is more, it is second-rate and need rescan, so as to improve work
Make efficiency.
Embodiment two
The embodiments of the invention provide the catching method of respiratory cycle in magnetic resonance imaging a kind of, this method can be applied
To in the magnetic resonance scan sequences for the human body being had a great influence by respiratory movement.
Fig. 4 is the second procedure example of the catching method of respiratory cycle in magnetic resonance imaging provided in an embodiment of the present invention
Figure.As shown in figure 4, in the present embodiment, the catching method of respiratory cycle comprises the following steps in magnetic resonance imaging：
S401, in the magnetic resonance agreement scanning process of person under inspection, when scanning is to when specifying breathing capture agreement, judgement is worked as
Whether the respiratory cycle of preceding person under inspection is in stable state.
S402, if the respiratory cycle of current person under inspection is in stable state, capture the respiratory cycle of person under inspection.
In step S401, by judging whether current breathing cycle is in stable state, equipment can be made, which to know currently, is
It is no suitably to capture the respiratory cycle.If current breathing cycle is in stable state, the respiratory cycle of capture will be with actual breathing
The difference in cycle is smaller, so as to ensure that IMAQ is in stability region, obtains the image of better quality, therefore suitably catch
Obtain the respiratory cycle.If current breathing cycle plays pendulum, the respiratory cycle of capture will be with the actual respiratory cycle
Difference is larger, and there is a strong possibility is not at stability region for such IMAQ, and the picture quality of acquisition is poor, therefore is not suitable for catching
Obtain the respiratory cycle.When current breathing cycle plays pendulum, the respiratory cycle catching press-button is arranged to click on
State or invisible mode, operator is made not click on.
Wherein, judge whether the respiratory cycle of current person under inspection is in stable state, can by it is foregoing will currently by
Mode of the respiratory cycle of inspection person compared with average respiratory cycle judges that here is omitted.
In step S402, when the respiratory cycle for judging current person under inspection being in stable state, and within a specified time
The clicking operation to the respiratory cycle catching press-button, the respiratory cycle of equipment automatic capture person under inspection are not received.The finger
Fix time and could be arranged to some seconds, or continuously the respiratory cycle of person under inspection reaches the time required for stable state several times.
So, it on the one hand can exempt the trouble of artificial triggering capture respiratory cycle, facility, the opposing party are provided for scan operation personnel
Face, it can also avoid making the picture quality of acquisition unqualified because scan operation personnel forget the triggering capture respiratory cycle, so as to
Multiple scanning is avoided, improves operating efficiency.
The catching method of respiratory cycle in magnetic resonance imaging provided in an embodiment of the present invention, passes through the magnetic resonance in person under inspection
In agreement scanning process, when scanning is to specified Trigger agreements, judge the respiratory cycle of current person under inspection whether in stable
State, if the respiratory cycle of current person under inspection is in stable state, the respiratory cycle of person under inspection is captured, is enabled a device to suitable
The time automatic start capture respiratory cycle, exempt the trouble of artificial triggering capture respiratory cycle, personnel provide for scan operation
It is convenient, and can avoid making the picture quality of acquisition unqualified because scan operation personnel forget the triggering capture respiratory cycle,
So as to avoid multiple scanning, operating efficiency is improved.
Embodiment three
The embodiment of the present invention provides the capture systems of respiratory cycle in magnetic resonance imaging a kind of, the system include processor with
And memory；Wherein, memory is used for store instruction, when the instruction is executed by processor, causes system to realize foregoing any reality
Apply the catching method of respiratory cycle in the magnetic resonance imaging in example.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and module, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided by the present invention, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the module
Division, only a kind of division of logic function, can there is other dividing mode, for example, multiple modules or group when actually realizing
Part can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown
Or the mutual coupling discussed or direct-coupling or communication connection can be by some interfaces, device or module it is indirect
Coupling or communication connection, can be electrical, mechanical or other forms.
The module illustrated as separating component can be or may not be physically separate, show as module
The part shown can be or may not be physical module, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of module therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional module in each embodiment of the present invention can be integrated in a processing unit, can also
That modules are individually physically present, can also two or more modules it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are causing a computer
It is each that device (can be personal computer, server, or network equipment etc.) or processor (Processor) perform the present invention
The part steps of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the invention with principle.
Claims (10)
1. the catching method of respiratory cycle in a kind of magnetic resonance imaging, it is characterised in that methods described includes：
In magnetic resonance agreement scanning process, when scanning is to specified breathing capture agreement, show that the first prompting is believed on interface
Breath, first prompt message are used to prompt the capture respiratory cycle；
Judge whether the respiratory cycle of current person under inspection is in stable state, if the respiratory cycle of presently described person under inspection is in steady
State is determined, it is determined that meeting trigger condition；
Receive the triggering information of capture respiratory cycle；
According to the triggering information, the respiratory cycle of the person under inspection is captured.
2. according to the method for claim 1, it is characterised in that first prompt message includes the real-time of the person under inspection
Respiratory waveform and respiratory cycle catching press-button, the respiratory cycle catching press-button are used to trigger the capture respiratory cycle；
The triggering information for receiving the capture respiratory cycle, including：
Receive and trigger information corresponding to the respiratory cycle catching press-button in response to clicking on.
3. according to the method for claim 1, it is characterised in that first prompt message includes the real-time of the person under inspection
Respiratory waveform and respiratory cycle catching press-button, the respiratory cycle catching press-button are used to trigger the capture respiratory cycle；
Methods described also includes：
Judge within a specified time whether receive the clicking operation to the respiratory cycle catching press-button；
If not receiving the clicking operation to the respiratory cycle catching press-button within a specified time, it is current to carry out the judgement
Whether the respiratory cycle of person under inspection is in stable state, if the respiratory cycle of presently described person under inspection is in stable state, it is determined that
Meet trigger condition；
The triggering information for receiving the capture respiratory cycle, including：
Receive in response to meeting to trigger information corresponding to the trigger condition.
4. according to the method for claim 1, it is characterised in that first prompt message includes respiratory cycle capture and pressed
Button, the respiratory cycle catching press-button are used to trigger the capture respiratory cycle；
Methods described also includes：
If the respiratory cycle of presently described person under inspection plays pendulum, the respiratory cycle catching press-button is arranged to can not point
Hit state or invisible mode.
5. according to the method for claim 1, it is characterised in that judge the respiratory cycle of current person under inspection whether in stable
State, including：
Obtain the person under inspection and the specified respiratory cycle data breathed before capture agreement scanned during present scan,
As the first respiratory cycle data；
According to the first respiratory cycle data, the average respiratory cycle of the person under inspection is determined；
By the respiratory cycle of presently described person under inspection compared with the average respiratory cycle, comparative result is obtained；
Whether the respiratory cycle for determining presently described person under inspection according to comparative result is in stable state.
6. according to the method for claim 5, it is characterised in that the comparative result is all for the breathing of presently described person under inspection
Phase and the difference of the average respiratory cycle；
Determine whether the respiratory cycle of presently described person under inspection is in stable state according to comparative result, including：
If the absolute value of the difference is less than the first designated value, determines that the respiratory cycle of presently described person under inspection is in and stablize shape
State；Or if the absolute value of the difference is more than or equal to first designated value, determine the breathing week of presently described person under inspection
Phase plays pendulum.
7. according to the method for claim 5, it is characterised in that the comparative result is all for the breathing of presently described person under inspection
Phase and the ratio of the average respiratory cycle；
Determine whether the respiratory cycle of presently described person under inspection is in stable state according to comparative result, including：
If the ratio is more than the second designated value, determine that the respiratory cycle of presently described person under inspection is in stable state；Or
If the ratio is less than or equal to second designated value, determine that the respiratory cycle of presently described person under inspection is in unstable shape
State.
8. according to the method for claim 1, it is characterised in that methods described also includes：
During the specified breathing capture agreement is scanned, it is whether abnormal that the respiratory cycle is detected in real time；
If detecting respiratory cycle exception, the second prompt message is shown on interface, second prompt message is used to prompt weight
Newly scan the specified breathing capture agreement.
9. the catching method of respiratory cycle in a kind of magnetic resonance imaging, it is characterised in that methods described includes：
In the magnetic resonance agreement scanning process of person under inspection, when scanning to specify breathing capture agreement when, judge it is presently described by
Whether the respiratory cycle of inspection person is in stable state；
If the respiratory cycle of presently described person under inspection is in stable state, the respiratory cycle of the person under inspection is captured.
10. the capture systems of respiratory cycle in a kind of magnetic resonance imaging, it is characterised in that the system includes processor and deposited
Reservoir；The memory is used for store instruction, when the instruction is by the computing device, causes the system to realize such as right
It is required that the method described in 1~9 any one.
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| CN201711021469.3A CN107874758A (en) | 2017-10-27 | 2017-10-27 | The capturing method and system of respiratory cycle in magnetic resonance imaging |
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| CN201711021469.3A CN107874758A (en) | 2017-10-27 | 2017-10-27 | The capturing method and system of respiratory cycle in magnetic resonance imaging |
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Application publication date: 20180406 |