CN107595321A - A kind of method of adjustment and equipment of the Doppler spectrum based on scale - Google Patents
A kind of method of adjustment and equipment of the Doppler spectrum based on scale Download PDFInfo
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- CN107595321A CN107595321A CN201710959353.8A CN201710959353A CN107595321A CN 107595321 A CN107595321 A CN 107595321A CN 201710959353 A CN201710959353 A CN 201710959353A CN 107595321 A CN107595321 A CN 107595321A
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Abstract
The invention discloses a kind of method of adjustment and equipment of the Doppler spectrum based on scale, methods described includes：Obtain the brain blood flow index according to the brain blood flow data collected and current scale generation Doppler spectrum；By the brain blood flow index got compared with default first threshold, and current scale is adjusted according to comparative result；Doppler spectrum is generated based on the scale after adjustment.The present invention by by the brain blood flow index of Doppler spectrum compared with first threshold, and according to comparative result adjust automatically scale, make whole frequency spectrum data is presented in Doppler's collection of illustrative plates region, the work of scale size is manually adjusted without doctor, working doctor efficiency is improved, also reduces the consultation time of patient.
Description
Technical field
The present invention relates to IT and field of medical technology, the adjustment side of more particularly to a kind of Doppler spectrum based on scale
Method and equipment.
Background technology
Transcranial Doppler ultrasound analyzer is used to diagnose cerebrovascular disease, help check the cerebrovascular narrow, block, blood flow not
The state of an illness such as smooth or cerebral hemorrhage.Using doppler frequency spectrum analysis technology, blood flow waveform, VPV can be provided for clinical diagnosis
The information such as (maximal rate, average speed etc.), blood flow disorder and band width under turbulent state, volume of blood flow, this is for brain
The early detection of vascular diseases is particularly significant.
At present, scale and baseline are provided with existing Doppler spectrum, wherein, the scale characterizes how general through cranium
Strangle the velocity interval that the Doppler spectrum of ultrasonic analysis instrument is presented；Baseline is that different directions have been distinguished in Doppler spectrum
The line of blood flow.But scale is to pre-set in Doppler spectrum, then when what is collected by doppler ultrasound equipment
Frequency spectrum data（Such as brain blood flow data）During more than the scope for setting scale, Doppler spectrum can not completely show whole spectrum number
According to, and the scale set when frequency spectrum data is too small is too big, frequency spectrum data presses together and can not clearly showed that.Now, it is
The more preferable Doppler spectrum of acquisition display effect, existing transcranial Doppler equipment need doctor to manually adjust Doppler's frequency
Spectrogram, add doctor's specific works amount.
Thus prior art could be improved and improve.
The content of the invention
The technical problem to be solved in the present invention is, in view of the shortcomings of the prior art, there is provided a kind of based on the how general of scale
The method of adjustment and equipment of spectrogram are strangled, to solve the problems, such as that existing ultrasonic Doppler equipment needs to manually adjust scale.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is as follows：
A kind of method of adjustment of the Doppler spectrum based on scale, it includes：
Obtain the brain blood flow index according to the brain blood flow data collected and current scale generation Doppler spectrum；
By the brain blood flow index got compared with default first threshold, and current scale is adjusted according to comparative result；
Doppler spectrum is generated based on the scale after adjustment.
The method of adjustment of the Doppler spectrum based on scale, wherein, it is described to obtain according to the brain blood flow collected
Also include before the brain blood flow index of data and current scale generation Doppler spectrum：
Analyze the cardiac cycle of the brain blood flow data collected, and the cardiac cycle by the brain blood flow data according to predetermined number
Cycle brain blood flow data corresponding to being divided into.
The method of adjustment of the Doppler spectrum based on scale, wherein, it is described to obtain according to the brain blood flow collected
The brain blood flow index of data and current scale generation Doppler spectrum specifically includes：
Judge the validity of the brain blood flow data for all cardiac cycles that the cycle brain blood flow packet contains；
When the brain blood flow data of all cardiac cycles are all effective, obtain according to the cycle brain blood flow data and current scale
Generate the brain blood flow index of Doppler spectrum.
The method of adjustment of the Doppler spectrum based on scale, wherein, it is described to obtain according to the brain blood flow collected
Data and current scale generation Doppler spectrum brain blood flow index be specially：
According to the brain blood flow data collected and current scale generation Doppler spectrum, and obtain the Doppler spectrum list
The brain blood flow index of side frequency spectrum.
The method of adjustment of the Doppler spectrum based on scale, wherein, it is described by the brain blood flow index and default
First threshold be compared, and current scale is adjusted according to comparative result and specifically included：
By the brain blood flow index compared with default first threshold；
If the brain blood flow index is more than first threshold, the current scale is tuned up.
The method of adjustment of the Doppler spectrum based on scale, wherein, it is described by the brain blood flow index respectively with
First threshold and Second Threshold are compared, and are also included according to the current scale of comparative result adjustment：
If the brain blood flow index is less than first threshold, by the brain blood flow index compared with Second Threshold；
When brain blood flow data are less than Second Threshold, then the current scale is turned down.
The method of adjustment of the Doppler spectrum based on scale, wherein, it is described that current mark is adjusted according to comparative result
Chi is specially：Current scale is adjusted according to preset ratio according to comparative result.
The method of adjustment of the Doppler spectrum based on scale, wherein, the first threshold is that current scale is unilateral
2/3rds of scale, Second Threshold are 1/3rd of current scale one side scale.
A kind of storage medium, it is stored with a plurality of instruction, and the instruction is suitable to be loaded by processor and performed as above any
The method of adjustment of the described Doppler spectrum based on scale.
A kind of adjusting device of the Doppler spectrum based on scale, it includes：
Processor, it is adapted for carrying out each instruction；And
Storage device, suitable for storing a plurality of instruction, the instruction is suitable to be loaded by processor and performed as above any described base
In the method for adjustment of the Doppler spectrum of scale.
Beneficial effect：Compared with prior art, the invention provides a kind of adjustment of the Doppler spectrum based on scale
Method and apparatus, methods described include：Obtain according to the brain blood flow data collected and current scale generation Doppler spectrum
Brain blood flow index；The brain blood flow index got is adjusted compared with default first threshold, and according to comparative result
Current scale；Doppler spectrum is generated based on the scale after adjustment.The present invention is by the way that the brain blood flow of Doppler spectrum is referred to
Number makes whole frequency is presented in Doppler's collection of illustrative plates region compared with first threshold, and according to comparative result adjust automatically scale
Modal data, manually adjusts the work of scale size without doctor, improves working doctor efficiency, also reduce patient it is medical when
Between.
Brief description of the drawings
Fig. 1 is the flow chart of the method for adjustment preferred embodiment of the Doppler spectrum provided by the invention based on scale.
Fig. 2 is the exemplary plot of the Doppler spectrum generated according to current scale.
Fig. 3 is the exemplary plot of the Doppler spectrum that scale generates after being adjusted according to the present invention.
Fig. 4 is the structural principle of the adjusting device preferred embodiment of the Doppler spectrum provided by the invention based on scale
Figure.
Embodiment
The present invention provides a kind of method of adjustment and equipment of the Doppler spectrum based on scale, to make the mesh of the present invention
, technical scheme and effect it is clearer, clear and definite, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or wireless coupling.It is used herein to arrange
Taking leave "and/or" includes whole or any cell and all combinations of one or more associated list items.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology), there is the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, it should be understood that have with the context of prior art
The consistent meaning of meaning, and unless by specific definitions as here, idealization or the implication of overly formal otherwise will not be used
To explain.
Below in conjunction with the accompanying drawings, by the description to embodiment, the content of the invention is described further.
Fig. 1 is refer to, Fig. 1 is the method for adjustment preferred embodiment of the Doppler spectrum provided by the invention based on scale
Flow chart.Methods described includes：
S10, obtain the brain blood flow index that Doppler spectrum is generated according to the brain blood flow data and current scale that collect；
S20, the brain blood flow index got adjusted into current mark compared with default first threshold, and according to comparative result
Chi；
S30, based on after adjustment scale generate Doppler spectrum.
The method of adjustment for the Doppler spectrum based on scale that the present embodiment provides, it is obtained according to the brain blood collected
Flow data and current scale generate the brain blood flow peak value of Doppler spectrum as brain blood flow index, and by brain blood flow index and in advance
If first threshold is compared, and according to comparative result adjust automatically scale so that the Doppler spectrum can be clearly complete
Whole presentation frequency spectrum data, the work of scale size is manually adjusted without doctor, improve working doctor efficiency, also reduce patient's
Consultation time.
Specifically, in the step S10, the brain blood flow data are CBFV, the brain blood flow index
For the peak value of the same cerebrovascular CBFV collected, Peak values are designated as here.The Peak values are unilateral brain blood flow
The peak value of speed, e.g., positive CBFV peak value or negative sense CBFV peak value.In this embodiment, the Peak values are
Positive CBFV peak value.The Doppler spectrum is unilateral Doppler spectrum, that is to say, that according to the brain collected
Blood flow data and current scale generate Doppler spectrum in the side of baseline, and obtain the brain blood flow of unilateral Doppler spectrum
Index, such direction that can not have to calculate brain blood flow, it improve the efficiency of adjust automatically.
Further, the speed of blood flow is typically all to be changed according to cardiac cycle in human body.Heart in the systole phase,
It outwards penetrates blood, and intravascular VPV is accelerated；Heart slows down in diastole, intravascular VPV.Therefore, marked to improve
The promptness and accuracy of chi adjustment, the CBFV of continuous predetermined number cardiac cycle can be accumulated to form a frequency spectrum
Cycle, and obtain the Peak values of the spectrum cycle.Accordingly, the step S10, acquisition are according to the brain blood flow data collected
And it can also include before the brain blood flow index of current scale generation Doppler spectrum：
S01, the analysis brain blood flow data cardiac cycle, and the cardiac cycle by the brain blood flow data according to predetermined number
Cycle brain blood flow data corresponding to being divided into.
Specifically, the predetermined number is presets what is set, such as 3,4 and 5.In the present embodiment, the present count
Amount is preferably 3, so can both can determine that the Doppler frequency spectrum state for collecting blood vessel corresponding to brain blood flow data, again can be fast
Speed timely carries out scale adjustment, so that complete doppler data can be presented by obtaining Doppler spectrum.
Accordingly, the step S10, acquisition are according to the brain blood flow data collected and current scale generation Doppler frequency spectrum
The brain blood flow index of figure specifically includes：
S11, judge all cardiac cycles that the cycle brain blood flow packet contains brain blood flow data validity.
Specifically, the validity of the brain blood flow data of all cardiac cycles for judging the brain blood flow packet and containing refers to
Each cardiac cycle brain blood flow data being contained within the cycle brain blood flow data validity.Each brain blood flow each week aroused in interest
The deterministic process of the validity of phase brain blood flow data is specifically as follows gathers each cardiac cycle to ultrasonic transcranial Doppler equipment
Brain blood flow data, and the brain blood flow data are obtained into spectrum signal by FFT；The bag of the spectrum signal is calculated again
Network data, and according to the validity of envelope data analysis brain blood flow data.Certainly, the brain blood flow of all cardiac cycles
The validity of data refers to the validity of each cardiac cycle brain blood flow data.In actual applications, according to the envelope data
The validity of analysis brain blood flow data can calculate frequency spectrum parameter according to envelope data, sentence if frequency spectrum parameter is calculated
The brain blood flow data of the fixed cardiac cycle are effective, and the brain blood flow number of the cardiac cycle is judged if frequency spectrum parameter is not calculated
According to invalid.
S12, when the brain blood flow data of all cardiac cycles are all effective, obtain according to the cycle brain blood flow data and
The brain blood flow index of current scale generation Doppler spectrum.
Specifically, it is described to obtain the brain blood that Doppler spectrum is generated according to the cycle brain blood flow data and current scale
Stream index can be the Peak values for all cardiac cycles that cycle noisy blood flow data includes or all cardiac cycles
The average value of Peak values, it can also be the average value of the Peak values of last cardiac cycle.In embodiment, the brain blood flow
Index is the average value of the Peak values of last cardiac cycle.In addition, when the brain blood flow data of all cardiac cycles have nothing
When imitating data, the brain blood flow data of all cardiac cycles of current period brain blood flow data are directly have ignored, and thereby under acquisition
One cycle brain blood flow data.
Further, it is described according to the cycle brain blood in order to improve the clarity and integrality that Doppler spectrum is shown
Flow data and current scale generation Doppler spectrum are only that the simulation carried out after brain blood flow data are collected is drawn, but first
Obtain simulation and draw and obtains the brain blood flow index of Doppler spectrum, and be without adjusting in comparative result by itself and first threshold
During whole scale, directly Doppler spectrum is showed, if necessary to adjust scale, then according to current period brain blood flow data
And the scale after adjustment generates and Doppler spectrum is presented.It can so ensure that current period brain blood flow data can be complete
Clearly it is presented on Doppler spectrum.
Further, in the step S20, the first threshold is pre-set, and it is generated to detect current scale
Doppler spectrum the foundation of doppler data whether can completely be presented.In the present embodiment, the Doppler spectrum
The side of baseline is presented in, so can root so as to which the first threshold is preferably 2/3rds of current scale one side scale
Judge that can Doppler frequency spectrum completely be presented frequency spectrum data according to accurate.For example, current scale is 120cm/s, then described the
One threshold value is 80cm/s.That is, the scope shared by the Doppler signal can at most reach Doppler spectrum
66%, which ensures that realize optimal diagnosis effect.
It is exemplary, the step S20, it is described by the brain blood flow index compared with first threshold, and according to than
Relatively result adjusts current scale and specifically included：
S21, by the brain blood flow index compared with first threshold.
Specifically, it is described to refer to current period brain blood flow data brain blood flow index compared with first threshold
Can Peak values how general to determine completely be shown according to the Doppler spectrum that current scale generates compared with first threshold
Strangle data.
If S22, the brain blood flow index are more than first threshold, the current scale is tuned up.
Specifically, the current scale is tuned up to tune up current scale according to preset ratio.The preset ratio is
Pre-set, for example, 5% etc. of current scale.That is, the current scale is tuned up into 5%, it will currently be adjusted to current
The 105% of scale, and the scale after adjustment is updated to current scale, to generate Doppler's frequency according to the current scale after renewal
Spectrogram.For example, as shown in Fig. 2 current scale is 80cm/s, the brain blood flow of the Doppler spectrum generated according to current scale refers to
Number is more than 80*2/3；Automatically current scale is increased to 120cm/s, the brain of the Doppler spectrum generated according to scale after renewal
Blood flow index is less than 120*2/3=80cm/s（As shown in Figure 3）.
Further, after current scale is tuned up, the Doppler obtained according to current scale generates after renewal is repeated
Peak values of the current period brain blood flow data of spectrogram and the step of compared with first threshold, are more than if obtaining Peak values
First threshold, then continue to tune up current scale and repeat to obtain with comparison procedure until Peak values are less than or equal to first threshold,
It is achieved thereby that the progressively adjustment of scale, can be determined more accurately required scale.
Further, the adjustment process can perform before Doppler frequency figure is actually generated, and be less than in Peak values
Generated during equal to first threshold and Doppler frequency figure is presented.Doppler's frequency is once generated and presented afterwards it is of course also possible to adjust
Rate figure, and when obtaining next cycle brain blood flow data, while to current period brain blood flow data and next cycle brain blood
Flow data judge simultaneously, and adjusts when the Peak values that a cycle be present are more than first threshold and work as corresponding to next cycle
Preceding scale.In addition, when the Peak values of current period are less than or equal to first threshold, stop judging current period Peak values.
In one embodiment of the invention, when Peak values are less than first threshold, in order to avoid current scale it is excessive and
Frequency spectrum data is caused not show clear, so as to which methods described also includes：
If S40, the brain blood flow index are less than first threshold, by the brain blood flow index compared with Second Threshold.
Specifically, the Second Threshold is also to preset, for example, the Second Threshold for current scale three/
One.For example, current scale is 120cm/m, then Second Threshold 40cm/m.And the brain blood flow index is entered with Second Threshold
Row relatively to judge whether the scope shared by Doppler signal exceedes 33% to Doppler spectrum, can so cause frequency
Modal data clearly can be presented on Doppler spectrum.
S50, when brain blood flow data are less than Second Threshold, then the current scale is turned down.
Specifically, it is described tune up current scale to be adjusted according to preset ratio, the preset ratio and turn down
Preset ratio is identical, and the 5% of as current scale.Can be with current scale be tuned up into process in addition, turning current scale down process
It is identical, repeat no more here.
Present invention also offers a kind of computer-readable storage medium, and it is stored with a plurality of instruction, and the instruction is suitable to
Loaded by processor and perform the method for adjustment of as above any described Doppler spectrum based on scale
Present invention also offers a kind of adjusting device of the Doppler spectrum based on scale, as shown in figure 4, it includes leading
Machine 100 and probe 200；The main frame 100 includes at least one processor（processor）101；And memory（memory）
102；It can also include emitter, probe socket and process circuit etc..Wherein, the processor 101, emitter, storage
Device 102 and probe 200 can complete mutual communication by bus.Processor can call the logical order in memory,
To perform the method in above-described embodiment.
In addition, the logical order in above-mentioned memory can be realized by the form of SFU software functional unit and is used as independent
Production marketing or in use, can be stored in a computer read/write memory medium.
Memory may be configured as storing the executable journey of software program, computer as a kind of computer-readable recording medium
Sequence, programmed instruction or module as corresponding to the method in the embodiment of the present disclosure.Processor 30 is by running storage in memory
Software program, instruction or module, so as to perform function application and data processing, that is, realize the method in above-described embodiment.
Memory may include storing program area and storage data field, wherein, storing program area can storage program area, at least
Application program needed for One function；Storage data field can store uses created data etc. according to terminal device.In addition,
Memory can include high-speed random access memory, can also include nonvolatile memory.For example, USB flash disk, mobile hard disk,
Read-only storage (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic
Dish or CD etc. are a variety of can be with the medium or transitory memory medium of store program codes.
In addition, the detailed process that a plurality of instruction processing unit in above-mentioned storage medium and mobile terminal is loaded and performed exists
It has been described in detail in the above method, has just no longer stated one by one herein.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of method of adjustment of the Doppler spectrum based on scale, it is characterised in that it includes：
Obtain the brain blood flow index according to the brain blood flow data collected and current scale generation Doppler spectrum；
By the brain blood flow index compared with default first threshold, and current scale is adjusted according to comparative result；
Doppler spectrum is generated based on the scale after adjustment.
2. the method for adjustment of the Doppler spectrum based on scale according to claim 1, it is characterised in that the acquisition root
Brain blood flow index according to the brain blood flow data collected and current scale generation Doppler spectrum also includes before：
Analyze the cardiac cycle of the brain blood flow data collected, and the cardiac cycle by the brain blood flow data according to predetermined number
Cycle brain blood flow data corresponding to being divided into.
3. the method for adjustment of the Doppler spectrum based on scale according to claim 2, it is characterised in that the acquisition root
Specifically included according to the brain blood flow index of the brain blood flow data collected and current scale generation Doppler spectrum：
Judge the validity of the brain blood flow data for all cardiac cycles that the cycle brain blood flow packet contains；
When the brain blood flow data of all cardiac cycles are all effective, obtain according to the cycle brain blood flow data and current scale
Generate the brain blood flow index of Doppler spectrum.
4. the method for adjustment of the Doppler spectrum based on scale according to claim 1-3 is any, it is characterised in that described
Obtain and be specially according to the brain blood flow index of the brain blood flow data collected and current scale generation Doppler spectrum：
According to the brain blood flow data collected and current scale generation Doppler spectrum, and obtain the Doppler spectrum list
The brain blood flow index of side frequency spectrum.
5. the method for adjustment of the Doppler spectrum based on scale according to claim 1, it is characterised in that described by described in
Brain blood flow index adjusts current scale according to comparative result and specifically included compared with default first threshold：
By the brain blood flow index compared with default first threshold；
If the brain blood flow index is more than first threshold, the current scale is tuned up.
6. the method for adjustment of the Doppler spectrum based on scale according to claim 5, it is characterised in that described by described in
Brain blood flow index also includes compared with first threshold and Second Threshold, and according to the current scale of comparative result adjustment respectively：
If the brain blood flow index is less than first threshold, by the brain blood flow index compared with Second Threshold；
When brain blood flow data are less than Second Threshold, then the current scale is turned down.
7. the method for adjustment of the Doppler spectrum based on scale according to claim 1,5 or 6 are any, it is characterised in that
It is described to be specially according to the current scale of comparative result adjustment：Current scale is adjusted according to preset ratio according to comparative result.
8. the method for adjustment of the Doppler spectrum based on scale according to claim 7, it is characterised in that first threshold
It is worth for 2/3rds of current scale one side scale, Second Threshold is 1/3rd of current scale one side scale.
9. a kind of storage medium, it is characterised in that it is stored with a plurality of instruction, and the instruction is suitable to be loaded and performed by processor
The method of adjustment of the Doppler spectrum based on scale as described in claim 1-8 is any.
10. a kind of adjusting device of the Doppler spectrum based on scale, it is characterised in that it includes：
Processor, it is adapted for carrying out each instruction；And
Storage device, suitable for storing a plurality of instruction, the instruction is suitable to be loaded by processor and performed as claim 1-8 is any
The method of adjustment of the described Doppler spectrum based on scale.
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| CN201710959353.8A CN107595321A (en) | 2017-10-16 | 2017-10-16 | A kind of method of adjustment and equipment of the Doppler spectrum based on scale |
| PCT/CN2018/077692 WO2019075981A1 (en) | 2017-10-16 | 2018-03-01 | Method and device for adjusting doppler spectrogram based on ruler |
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| WO2019075981A1 (en) * | 2017-10-16 | 2019-04-25 | 深圳市德力凯医疗设备股份有限公司 | Method and device for adjusting doppler spectrogram based on ruler |
| CN110613477A (en) * | 2018-12-29 | 2019-12-27 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic imaging method and ultrasonic apparatus |
| CN110613477B (en) * | 2018-12-29 | 2024-05-24 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic imaging method and ultrasonic apparatus |
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