CN101664323B - Method for switching imaging state at real time by ultrasonic equipment in Doppler blood flow measurement - Google Patents
Method for switching imaging state at real time by ultrasonic equipment in Doppler blood flow measurement Download PDFInfo
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Abstract
The invention discloses a Doppler quick diagnosis method and a system for switching imaging state at real time, which uses a timing mechanism to judge the times of color blood flow of the system entering a Doppler spectrum imaging mode, in first entry, then a doctor is allowed to carefully select the position of a spectrum marking point and manually switch to a spectrum state, and if not for first entry, then through the timing device, the spectrum state is automatically accessed when a user adjusts the position of the marking point. The invention helps the doctor to switch between color blood flow imaging state and spectrum imaging state frequently by touching an induction device on a keyboard as needed, enables one-handed operation to be more convenient, and the doctor can completely focus on the observation and analysis of images. The invention also reduces burden for patients, the patients need not to hold breath for a long time during inspection, and especially for patients can not control behaviors, ensures the collection of images with clinical diagnostic value possible.
Description
Technical field
The present invention relates to medical supersonic diagnostic device field, the method for especially a kind of ultrasonic device instant switching imaging state in Doppler blood flow measurement.
Background technology
Present various medical supersonic diagnostic device such as B ultrasonic etc. have been widely used in the clinical diagnosis of each hospital, can observe the anatomical structure of patient's interior tissue and organ except traditional black and white is super, color ultrasound can improve the clinical application range of ultrasonic diagnostic equipment to endovascular blood flow imaging greatly by using Doppler effect.
So-called Doppler effect is meant that when having relative motion between wave source and the observer, the frequency of vibration of the ripple that the observer is received is not equal to the frequency of vibration of wave source, utilizes the skew of this frequency, and the observer can calculate wave source travel direction and speed.
In recent years, the ultrasonic pulse Doppler blood flow measurement technology based on Doppler effect begins extensive use on clinical medicine.When utilizing ultrasonic device to check, ultrasonic probe can send the ultrasound wave with characteristic frequency, and after ultrasound wave entered human body, the part ultrasound wave can be required the tissue reflection and the scattering of observation, when certain histokinesis, the ultrasonic frequency of its emission and scattering can change., when the heart trunk, will change such as, hot stream of cells from the ultrasonic frequency of its surface scattering.According to doppler principle, this frequency shift (FS) can be indicated the direction and the speed of blood flow.When popping one's head in, the reflected sound wave frequency can increase as erythrocyte, and when leaving probe as erythrocyte, the reflected sound wave frequency then reduces, and the amplitude of frequency change can calculate the speed of blood flow.Detect and analyze for ease of the clinician, direction and these the two kinds of information of speed with blood flow are made up flexibly usually, show intuitively in the mode of picture.The doctor both can observe a certain particular region of interest (Region of Interest, hereinafter referred ROI) blood flow motion conditions (color blood-stream) can be observed the locational blood flow motion conditions of certain specific markers (spectrogram) in this specific region again simultaneously.
In clinical examination, if simultaneously color blood-stream and spectrogram are done real-time demonstration, ultrasonic hardware unit should be finished the reception computing of ROI zone with frequency A ultrasonic waves transmitted, realizes again certain specific markers point in this ROI zone with the reception computing of frequency B ultrasonic waves transmitted.So not only can cause the frame frequency of whole system to reduce because of overlapping calculation, and because the ultrasound wave sound field of different frequency is disturbed mutually, can cause the color blood-stream image color not full, the spectral image background has noise, thereby is unfavorable for diagnosis.
Therefore present most of compuscans all tend to adopt mode display image with color blood-stream and spectrogram independent displaying so that the doctor can finish diagnosis accurately to patient more efficiently, promptly closing flag point frequency spectrum calculates when carrying out the imaging of ROI color blood-stream image, calculates and close the ROI colorful blood when carrying out the imaging of gauge point spectral image.Because hardware unit at a time only need be done a kind of emission of frequency and receive processing, not only the real-time scanning frame frequency of system is improved, and the color blood-stream image sensitivity that collects raising, and color information is full full, the noise of spectral image reduces, and background is clear.
But in present clinical practice, the conversion regime of color flow angiography and frequency spectrum imaging has influenced the maximum performance of efficient of ultrasonic diagnostic equipment.In traditional ultrasonic device, when checking patient, the doctor generally enters the color flow angiography pattern by " blood flow patterns " key, be only to show a width of cloth color blood-stream image on the screen, the ROI zone is determined in trace ball input equipment by system, enter the Doppler frequency spectrum imaging pattern by " doppler mode " key then, be to show a width of cloth color blood-stream image above the screen, the spectral image that shows a width of cloth specific markers point below, this moment, live image was a color blood-stream, system is in the real-time color blood flow state, be responsible for that ultrasonic emitting is finished in the ROI zone and receive processing, the doctor can pass through the position and the size of the touching device aignment mark point of sliding system, in case after having confirmed gauge point, by " function conversion " key switched system function, this moment, color blood-stream image freezed, live image is the spectrogram of this gauge point, and system transfers the real time spectrum state to, is responsible for finishing the hyperacoustic emission in this gauge point place is received processing.If the spectral image that obtains is undesirable or because patient's breathing or tissue location that motion causes index point to be demarcated lose the meaning of clinical examination, the doctor need reset gauge point.
In present ultrasonic diagnostic equipment, the doctor need get back to the real-time color blood flow state by " doppler mode " key, regulate gauge point after, enter the real time spectrum state by " function conversion " key again.And this mode of operation more complicated can influence the efficient that the doctor checks, mainly shows the following aspects:
1, because some tissue of human body or telorism's body surface position deep (liver) or blood vessel thin (kidney) therebetween, cause the result of ultrasonic doppler frequency spectrum scanning sensitive especially, breathing that patient is slight or motion all can cause the spectral image distortion that collects, this moment, the spectral image that obtains of system was not the blood vessel from ad-hoc location, but from the perienchyma of the blood vessel on the same position.Therefore the doctor can require patient to hold the breath a period of time in testing process usually as far as possible clinically, during this period of time, the doctor need finish the switching of two states rapidly needing to obtain the result of observation, and this moment, complicated button switch mode bring very big obstacle can for doctor's quick operation;
2, for some emergency treatments or the patient of special disease is arranged, they might be difficult to the requirement that deallocation closes the doctor and hold the breath a period of time, and at this moment, if adopt traditional mode of operation to go to carry out the image state conversion, the doctor just is difficult to collect the image that needs;
3, when patient is carried out ultrasonic examination, the doctor needs a hand-held probe carry out scanning to patient, on the other hand machine is operated, and the doctor will concentrate attention and is placed on observation and analyzes on the scanning image in the display.Therefore in the process of one-handed performance machine, the doctor can wish usually and can just can finish required operation in the keyboard area that a hands can be controlled that this zone is called effective keyboard area.And Doppler is when checking, the doctor needs repeatedly sliding trace ball input equipment to regulate the position of fixed point, and this moment, effectively keyboard area just was meant with trace ball input equipment to be the zone of the palm area size at center.In this zone, simple and convenient more operation helps improving doctor's checking efficiency more.And the state conversion regime of traditional Doppler in checking all needs by " function conversion " key, and the position of this button in keyboard might be in effective keyboard area, so doctor's checking efficiency will certainly be affected.
Therefore, providing a kind of easy-to-use Doppler's test mode fast, realize the convenient switching of colorful blood state and frequency spectrum state, allow the doctor more effectively finish various clinically sensitive blood flow detection, is very significant.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the method for a kind of ultrasonic device instant switching imaging state in Doppler blood flow measurement is provided, realize the colorful blood state of ultrasonic device and the convenient switching of frequency spectrum state.
According to technical scheme provided by the invention, the method for ultrasonic device instant switching imaging state in Doppler blood flow measurement is by three buttons and a trace ball input equipment switching imaging state, and method is as follows,
Step 1: start the color flow angiography pattern by first button;
Step 2: send the ROI control command to transmitter module, obtain color blood-stream image;
Step 3: the ROI zone that will observe by trace ball input equipment input;
Step 4: start the Doppler frequency spectrum imaging pattern by second button;
Step 5: enter first state of Doppler frequency spectrum imaging pattern, promptly color blood-stream image is in active state, and spectral image is in frozen state;
Step 6: judging that system enters first state for the first time, is execution in step 7 then, otherwise execution in step 11;
Step 7: by the position of trace ball input equipment input marking point;
Step 8: by the 3rd button the state of Doppler frequency spectrum imaging pattern is switched to second state by first state, promptly color blood-stream image is in frozen state, and spectral image is in active state;
Step 9: send Doppler's Scanning index point control order to transmitter module, start the locational Doppler frequency spectrum imaging of demarcating by gauge point;
Step 10: second state that enters the Doppler frequency spectrum imaging pattern; And judge whether trace ball input equipment is moved, be execution in step 5 then;
Step 11: write down the position of gauge point again, start timing means simultaneously; When trace ball input equipment had new input, cancellation regularly was provided with, and writes down the gauge point position again, and restarts timing means, begins new timing; Execution in step 9 when regularly finishing.
The incoming event of described trace ball input equipment comprises two kinds: move and click; Click event is used for two kinds of input states of switching track ball input equipment: according to the mobile induced indicia point of trace ball or the size or the position in ROI zone.Be to be the size or the position of switching under step 3 situation according to the mobile induction ROI zone of trace ball; Under step 7 situation size or the position of switching according to the mobile induced indicia point of trace ball.
The method in the described ROI zone that will observe by trace ball input equipment input is:
51: current is the color flow angiography mode state;
52: whether the trace ball input equipment of judging system is moved, if execution in step 54 then, otherwise get back to step 51;
53: whether the trace ball input equipment of judging system click event takes place, if then execution in step 58, otherwise gets back to step 51;
54: judge that trace ball input equipment is to the induction of ROI size or to the ROI location sensitive; If to size induction, then execution in step 55, if to location sensitive then execution in step 56;
55: the size that input equipment is moved according to trace ball changes ROI size, execution in step 56;
56: according to the variation of ROI size or position, recomputate the ROI position, execution in step 57;
57: send the ROI control command to transmitter module, obtain color blood-stream image again; Come back to step 51 after the execution;
58: judge current trace ball input equipment to the induction of ROI size or to the ROI location sensitive, if to the size induction, then execution in step 59, if to location sensitive, then execution in step 510;
59: determine that current trace ball input equipment to the ROI location sensitive, gets back to step 51;
510: determine that current trace ball input equipment to ROI size induction, gets back to step 51.
The method of described position by trace ball input equipment input marking point is:
61: system is in first state;
62: whether the trace ball input equipment of judging system is moved, if execution in step 64 then, otherwise get back to step 61;
63: whether the trace ball input equipment of judging system click event takes place, if then execution in step 67, otherwise gets back to step 61;
64: judge that trace ball input equipment is to the induction of gauge point size or to the gauge point location sensitive; If to size induction, then execution in step 65, if to location sensitive then execution in step 66;
65: the size that input equipment is moved according to trace ball changes gauge point size, execution in step 66;
66: according to the variation of gauge point size or position, recomputate the gauge point position, get back to step 61;
67: judge current trace ball input equipment to the induction of gauge point size or to the gauge point location sensitive, if to the size induction, then execution in step 68, if to location sensitive, then execution in step 69;
68: determine that current trace ball input equipment to the gauge point location sensitive, gets back to step 61;
69: determine that current trace ball input equipment to gauge point size induction, gets back to step 61.
After starting timing means, described when trace ball input equipment has new input, the method that writes down the gauge point position again is:
71: during system wait regularly finishes;
72: whether the trace ball input equipment of judging system is moved, if execution in step 74 then, otherwise get back to step 71;
73: whether the trace ball input equipment of judging system click event takes place, if then execution in step 78, otherwise gets back to step 71;
74: judge that trace ball input equipment is to the induction of gauge point size or to the gauge point location sensitive; If to size induction, then execution in step 75, if to location sensitive then execution in step 76;
75: the size that input equipment is moved according to trace ball changes gauge point size, execution in step 76;
76:, recomputate the gauge point position according to the variation of gauge point size or position; Execution in step 77;
77: cancellation regularly is provided with, and writes down the gauge point position again, starts timing means, begins new timing; Get back to step 71;
78: judge current trace ball input equipment to the induction of gauge point size or to the gauge point location sensitive, if to the size induction, then execution in step 79, if to location sensitive, then execution in step 710;
79: determine that current trace ball input equipment to the gauge point location sensitive, gets back to step 71;
710: determine that current trace ball input equipment to gauge point size induction, gets back to step 71.
Advantage of the present invention is: owing to abandoned the mode of switching two states of Doppler's inspection by button fully, introduced timing mechanism, thereby make the doctor when carrying out case control, the trace ball input equipment that only needs simple sliding system just can completion status switching, and do not need to remember certain switch key on the keyboard and the position of this key.Improved the efficient of working doctor so on the one hand greatly, simplified doctor's mode of operation, made one-handed performance more convenient, the doctor can be absorbed in fully to image observation and analysis; On the one hand also alleviated burden in addition, made and need when checking, not hold the breath for a long time, especially, made collection have the image of diagnostic value to become possibility for patient that can't the Autonomous Control behavior for patient.
Description of drawings
The block diagram of system of the ultrasonic diagnostic equipment that Fig. 1 is correlated with for the present invention.
Fig. 2 is the colorful blood state diagram in the Doppler frequency spectrum imaging pattern.
Fig. 3 is the frequency spectrum state diagram in the Doppler frequency spectrum imaging pattern.
Fig. 4 is the general flow chart of the method for the invention.
Fig. 5 is the method flow diagram in the ROI zone that will observe by trace ball input equipment input.
Fig. 6 is the method flow diagram by the position of trace ball input equipment input marking point.
Fig. 7 is the method flow diagram that writes down the gauge point position behind the startup timing means again.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the system of the ultrasonic diagnostic equipment that the present invention is correlated with forms and does brief description: transducer (also being probe) is hyperacoustic device that transmits and receives, and is generally made by piezoelectric, can convert electrical energy into acoustic energy, also can change conversely; Doppler's state modular converter and controller carry out the mutual of Doppler's scanning state, and then are controlled the method for transmitting and receiving of radiating circuit by controller.Radiating circuit sends the signal of telecommunication to transducer under the coordination of controller, be converted to ultrasonic emitting by transducer and go out; Receiving circuit is responsible for receiving transducer and is passed the echo signal (being converted to the signal of telecommunication by transducer) come, and amplify, processing such as digital to analog conversion; Wave beam is synthetic to carry out dynamic focusing and dynamic aperture processing to the echo signal on the different directions, and it is synthesized together; The signal that signal processing and image form wave beam after synthetic carries out processing such as noise suppressed, envelope detection, logarithmic compression, digital scan conversion, form the image that is easy to show at last, here image mainly is divided into three kinds: black white image, color blood-stream image, spectral image.When carrying out blood flow analysis, color blood-stream image need be attached on the black white image, is referred to as color blood-stream image; Display can be common CRT monitor or liquid crystal display etc., is responsible for image is shown and the demonstration of some user interfaces; Controller is responsible for all other parts are controlled and coordinated, it can be a circuit, also can be an embedded device or a microcomputer, the controller of present most of digital ultrasound diagnostic device all be embedded device or the microcomputer that has operating system; Keyboard is the user input of controller, and it is mutual to come with controller for a kind of means easily of user, and trace ball input equipment is all arranged on the keyboard of present most ultrasonic diagnostic equipment, is used for realizing the function with the mouse equivalence, and is user-friendly.The incoming event of described trace ball input equipment comprises two kinds: move and click; Click event is used for two kinds of input states of switching track ball input equipment: according to the mobile induced indicia point of trace ball or the size or the position in ROI zone.
Under the Doppler frequency spectrum imaging pattern, for the blood flow motion conditions that allows the doctor can check a certain specific markers point in detected position intuitively, system usually will be on display unit display color blood-stream image and spectral image simultaneously.Owing to will improve the frame frequency of pictorial display and the effect of images acquired, have only a width of cloth to be in real-time scanning state in this two width of cloth image constantly at each, and an other width of cloth be in frozen state.For the ease of narrating, reaching hereinafter the colorful blood active state is called first state here, as shown in Figure 2, the spectral image active state is called second state, as shown in Figure 3.In first state, the part of being demarcated by user's area-of-interest (ROI) is a movable part, and image therebetween is a color blood-stream image, is indicating the flow direction and the velocity magnitude of the blood flow of this tissue in should the zone.The doctor can by the position of trace ball input equipment movement indicia point, choose the blood flow motion conditions on the tissue internal labeling point calibration position that need check according to color blood-stream image, and this moment, spectral image kept freezing.In second state, color blood-stream image freezes, and spectral image transfers live image to, and constantly upgrades in time, and the meaning of sign is the interior locational blood flow rate of being demarcated by gauge point of a tissue situation over time.
As shown in Figure 4, the quick implementation of the method for the invention when carrying out Doppler's scanning is as follows:
41:, start the color flow angiography pattern by " blood flow patterns " key of keyboard.
42: send the ROI control command to transmitter module, obtain color blood-stream image.
43: the ROI zone that will observe by trace ball input equipment input.
44:, start the Doppler frequency spectrum imaging pattern by " doppler mode " key of keyboard
45: system enters first state of Doppler frequency spectrum imaging pattern
46: judge whether system is to enter first state for the first time under the Doppler frequency spectrum imaging pattern, if then execution in step 47, if not, then execution in step 411.
47: by the position of trace ball input equipment input marking point.
48: by " function conversion " key the state of Doppler frequency spectrum imaging pattern is switched to second state by first state, promptly color blood-stream image is in frozen state, and spectral image is in active state.
49: send Doppler's Scanning index point control order to transmitter module, start the locational Doppler frequency spectrum imaging of demarcating by gauge point.
410: second state that enters the Doppler frequency spectrum imaging pattern; And judge whether trace ball input equipment is moved, be execution in step 5 then.
411: write down the position of gauge point again, start timing means simultaneously; When trace ball input equipment had new input, cancellation regularly was provided with, and writes down the gauge point position again, and restarts timing means, begins new timing; Execution in step 9 when regularly finishing.
In step 41,42, after receiving " blood flow patterns " press key message of keyboard, system start-up color flow angiography pattern, and by the order of controller to radiating circuit transmission unlatching color flow angiography pattern, radiating circuit is passed in the size and the position of the ROI frame that will initially preset simultaneously, just is responsible for color flow angiography is carried out in the ROI inspection area that the doctor sets by radiating circuit afterwards.At this moment, have only a width of cloth color blood-stream image on the screen, the doctor need regulate the size and the position in ROI zone under the color flow angiography pattern, to obtain best blood flow observation effect.
As shown in Figure 5, the flow process in the ROI zone that the doctor will observe by trace ball input equipment input in the step 43:
51: the color flow angiography mode state.
52: whether the trace ball input equipment of judging system is moved, if execution in step 54 then, otherwise get back to step 51.
53: whether the trace ball input equipment of judging system click event takes place, if then execution in step 58, otherwise gets back to step 51.
54: judge that trace ball input equipment is to the induction of ROI size or to the ROI location sensitive.If to the size induction, then execution in step 55.If to location sensitive then execution in step 56.
55: the size that input equipment is moved according to trace ball changes ROI size, execution in step 56.
56: according to the variation of ROI size or position, recomputate the ROI position, execution in step 57.
57: send the ROI control command to transmitter module, obtain color blood-stream image again.Come back to step 51 after the execution.
58: judge current trace ball input equipment to the induction of ROI size or to the ROI location sensitive, if to the size induction, then execution in step 59, if to location sensitive, then execution in step 510.
59: determine current trace ball input equipment to the ROI location sensitive, execution in step 51.
510: determine that current trace ball input equipment is to the induction of ROI size, execution in step 51.
Comprehensive step shown in Figure 5, its main purpose are to regulate the position and size of ROI.After the doctor had determined ROI zone and size, behind the press key message of " doppler mode " key of receiving keyboard, the controller of system can transmit control command to radiating circuit, opened the emission receiving algorithm of colorful blood in the Doppler frequency spectrum imaging pattern.System enters first state, i.e. step 45.
When entering first state, program need judge that whether system is to enter first state for the first time after entering the Doppler frequency spectrum imaging pattern by the color flow angiography pattern, selects different branches to carry out the switching of first state to second state according to the result who judges.Here why will judge whether to for the first time entering first state, be that the Doppler's fast diagnosis method for switching imaging state immediately of the present invention provides more additional.Because the doctor when for the first time entering first state of Doppler frequency spectrum imaging pattern, need vessel flow that careful selection wants look-out station to, determine the position of gauge point.And when entering first state once more by second state, the doctor only need get final product according to the change that the skew of blood vessel is done slightly the position of gauge point.And Doppler's fast diagnosis method that we propose is realized switching to first state from second state fast just, again to second state.
Therefore, following introduction two kinds of conclusions that will draw according to the judgement in the step 46 are respectively carried out:
First kind of conclusion: system enters first state for the first time after entering the Doppler frequency spectrum imaging pattern by the color flow angiography pattern.This moment, system allowed the size and the position of the information aignment mark point that the doctor provides according to color blood-stream image.As shown in Figure 6, the flow process of doctor's aignment mark point:
61: system is in first state.
62: whether the trace ball input equipment of judging system is moved, if execution in step 64 then, otherwise get back to step 61.
63: whether the trace ball input equipment of judging system click event takes place, if then execution in step 67, otherwise gets back to step 61.
64: judge that trace ball input equipment is to the induction of gauge point size or to the gauge point location sensitive.If to the size induction, then execution in step 65.If to location sensitive then execution in step 66.
65: the size that input equipment is moved according to trace ball changes gauge point size, execution in step 66.
66: according to the variation of gauge point size or position, recomputate the gauge point position, get back to step 61.
67: judge current trace ball input equipment to the induction of gauge point size or to the gauge point location sensitive, if to the size induction, then execution in step 68, if to location sensitive, then execution in step 69.
68: determine current trace ball input equipment to the gauge point location sensitive, execution in step 61.
69: determine that current trace ball input equipment is to the induction of gauge point size, execution in step 61.
Behind size that regulates gauge point and position, the doctor can be by " function conversion " key of lower keyboard, system detects " function conversion " when key is pressed, can transmit control command to radiating circuit by controller, close the emission receiving algorithm of colorful blood in the Doppler frequency spectrum imaging pattern, open the emission receiving algorithm of the spectral image in the Doppler frequency spectrum imaging pattern simultaneously, and the big or small positional information of gauge point is passed and radiating circuit in the lump, be i.e. step 49.System enters second state of Doppler frequency spectrum imaging pattern afterwards.Because blood flow detection is subjected to the influence of patient respiration and motion very big, under second state, the blood flow of the position of being demarcated by gauge point is easy to be subjected to displacement, thereby makes the clinical inspection meaning of gauge point forfeiture, thereby need come back to the first state selected marker point.Step 411 has been described the judgement that system will do under second state, if trace ball input equipment is not moved, then continues to keep second state; If trace ball input equipment has taken place to move, then controller transmits control command from the trend radiating circuit, stops the emission receiving algorithm of frequency spectrum, opens the emission receiving algorithm of colorful blood in the Doppler frequency spectrum imaging pattern.System enters first state immediately, the switching of completion status.This moment is when entering first state again, and program still can execution in step 46, judges promptly whether system is to enter first state for the first time after entering the Doppler frequency spectrum imaging pattern by the color flow angiography pattern.Because the first current state is come from second state conversion, not acquiescence first state when entering doppler mode for the first time and being, so program can be carried out according to second kind of conclusion, second kind of conclusion is described below:
Second kind of conclusion: system is not to enter first state for the first time after entering the Doppler frequency spectrum imaging pattern by the color flow angiography pattern.This moment, trace ball input equipment took place to move because system is when second state enters first state, so program need recomputate the position of gauge point, and started timing means, as described in step 412.In waiting timer timing terminal procedure, this method still allows the doctor that the big or small position of the gauge point of system is regulated, and as shown in Figure 7, the detailed modification gauge point size and the flow process of position are as follows:
71: during system wait regularly finishes.
72: whether the trace ball input equipment of judging system is moved, if execution in step 74 then, otherwise get back to step 71.
73: whether the trace ball input equipment of judging system click event takes place, if then execution in step 78, otherwise gets back to step 71.
74: judge that trace ball input equipment is to the induction of gauge point size or to the gauge point location sensitive.If to the size induction, then execution in step 75.If to location sensitive then execution in step 76.
75: the size that input equipment is moved according to trace ball changes gauge point size, execution in step 76.
76:, recomputate the gauge point position according to the variation of gauge point size or position.Execution in step 77.
77: cancellation regularly is provided with, and writes down the gauge point position again, starts timing means, begins new timing.Get back to step 71.
78: judge current trace ball input equipment to the induction of gauge point size or to the gauge point location sensitive, if to the size induction, then execution in step 79, if to location sensitive, then execution in step 710.
79: determine current trace ball input equipment to the gauge point location sensitive, execution in step 71.
710: determine that current trace ball input equipment is to the induction of gauge point size, execution in step 71.
Here introduced timing means, regulated the size and position of gauge point by the input equipment of sliding trace ball at every turn after, reset timing means, treat regularly to finish the back system and automatically perform step 49.Promptly close the emission receiving algorithm of colorful blood in the Doppler frequency spectrum imaging pattern, open the emission receiving algorithm of the spectral image in the Doppler frequency spectrum imaging pattern simultaneously, and the big or small positional information of gauge point passed and radiating circuit in the lump, system enters second state of Doppler frequency spectrum imaging pattern.Here periodic interval can set up on their own according to doctor's use habit, and system default is 100ms, if the doctor thinks that in use this is very long at interval, then can reset this value in the system configuration management page.
To sum up, the method that the present invention proposes is after initially entering Doppler frequency spectrum imaging pattern first state, determining that the gauge point position enters second state, by the trace ball input equipment on the keyboard, by timing means, just can finish the mutual switching of the two states of Doppler's checking mode simply fast, promptly second state to first state again to second state, circulation successively, and whole process doctor only need come into contacts with trace ball input equipment, makes things convenient for the doctor to use, thereby improves diagnosis efficiency.
Claims (5)
1. the method for ultrasonic device instant switching imaging state in Doppler blood flow measurement, it is characterized in that: by three buttons and a trace ball input equipment switching imaging state, method is as follows,
Step 1: start the color flow angiography pattern by first button;
Step 2: send the ROI control command to transmitter module, obtain color blood-stream image;
Step 3: the ROI zone that will observe by trace ball input equipment input;
Step 4: start the Doppler frequency spectrum imaging pattern by second button;
Step 5: enter first state of Doppler frequency spectrum imaging pattern, promptly color blood-stream image is in active state, and spectral image is in frozen state;
Step 6: judging that system enters first state for the first time, is execution in step 7 then, otherwise execution in step 11;
Step 7: by the position of trace ball input equipment input marking point;
Step 8: by the 3rd button the state of Doppler frequency spectrum imaging pattern is switched to second state by first state, promptly color blood-stream image is in frozen state, and spectral image is in active state;
Step 9: send Doppler's Scanning index point control order to transmitter module, start the locational Doppler frequency spectrum imaging of demarcating by gauge point;
Step 10: second state that enters the Doppler frequency spectrum imaging pattern; And judge whether trace ball input equipment is moved, be execution in step 5 then;
Step 11: write down the position of gauge point again, start timing means simultaneously; When trace ball input equipment had new input, cancellation regularly was provided with, and writes down the gauge point position again, and restarts timing means, begins new timing; Execution in step 9 when regularly finishing.
2. the method for ultrasonic device as claimed in claim 1 instant switching imaging state in Doppler blood flow measurement is characterized in that the incoming event of described trace ball input equipment comprises two kinds: move and click; Click event is used for two kinds of input states of switching track ball input equipment: be the size or the position of switching according to the mobile induction ROI zone of trace ball under step 3 situation; Under step 7 situation size or the position of switching according to the mobile induced indicia point of trace ball.
3. the method for ultrasonic device as claimed in claim 2 instant switching imaging state in Doppler blood flow measurement is characterized in that, the method in the described ROI zone that will observe by trace ball input equipment input is:
51: current is the color flow angiography mode state;
52: whether the trace ball input equipment of judging system is moved, if execution in step 54 then, otherwise get back to step 51;
53: whether the trace ball input equipment of judging system click event takes place, if then execution in step 58, otherwise gets back to step 51;
54: judge that trace ball input equipment is to the induction of ROI size or to the ROI location sensitive; If to size induction, then execution in step 55, if to location sensitive then execution in step 56;
55: the size that input equipment is moved according to trace ball changes ROI size, execution in step 56;
56: according to the variation of ROI size or position, recomputate the ROI position, execution in step 57;
57: send the ROI control command to transmitter module, obtain color blood-stream image again; Come back to step 51 after the execution;
58: judge current trace ball input equipment to the induction of ROI size or to the ROI location sensitive, if to the size induction, then execution in step 59, if to location sensitive, then execution in step 510;
59: determine that current trace ball input equipment to the ROI location sensitive, gets back to step 51;
510: determine that current trace ball input equipment to ROI size induction, gets back to step 51.
4. the method for ultrasonic device as claimed in claim 2 instant switching imaging state in Doppler blood flow measurement is characterized in that the method for described position by trace ball input equipment input marking point is:
61: system is in first state;
62: whether the trace ball input equipment of judging system is moved, if execution in step 64 then, otherwise get back to step 61;
63: whether the trace ball input equipment of judging system click event takes place, if then execution in step 67, otherwise gets back to step 61;
64: judge that trace ball input equipment is to the induction of gauge point size or to the gauge point location sensitive; If to size induction, then execution in step 65, if to location sensitive then execution in step 66;
65: the size that input equipment is moved according to trace ball changes gauge point size, execution in step 66;
66: according to the variation of gauge point size or position, recomputate the gauge point position, get back to step 61;
67: judge current trace ball input equipment to the induction of gauge point size or to the gauge point location sensitive, if to the size induction, then execution in step 68, if to location sensitive, then execution in step 69;
68: determine that current trace ball input equipment to the gauge point location sensitive, gets back to step 61;
69: determine that current trace ball input equipment to gauge point size induction, gets back to step 61.
5. the method for ultrasonic device as claimed in claim 2 instant switching imaging state in Doppler blood flow measurement, described when trace ball input equipment has new input after it is characterized in that starting timing means, the method that writes down the gauge point position again is:
71: during system wait regularly finishes;
72: whether the trace ball input equipment of judging system is moved, if execution in step 74 then, otherwise get back to step 71;
73: whether the trace ball input equipment of judging system click event takes place, if then execution in step 78, otherwise gets back to step 71;
74: judge that trace ball input equipment is to the induction of gauge point size or to the gauge point location sensitive; If to size induction, then execution in step 75, if to location sensitive then execution in step 76;
75: the size that input equipment is moved according to trace ball changes gauge point size, execution in step 76;
76:, recomputate the gauge point position according to the variation of gauge point size or position; Execution in step 77;
77: cancellation regularly is provided with, and writes down the gauge point position again, starts timing means, begins new timing; Get back to step 71;
78: judge current trace ball input equipment to the induction of gauge point size or to the gauge point location sensitive, if to the size induction, then execution in step 79, if to location sensitive, then execution in step 710;
79: determine that current trace ball input equipment to the gauge point location sensitive, gets back to step 71;
710: determine that current trace ball input equipment to gauge point size induction, gets back to step 71.
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| CN2009101827650A CN101664323B (en) | 2009-09-07 | 2009-09-07 | Method for switching imaging state at real time by ultrasonic equipment in Doppler blood flow measurement |
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| CN2009101827650A CN101664323B (en) | 2009-09-07 | 2009-09-07 | Method for switching imaging state at real time by ultrasonic equipment in Doppler blood flow measurement |
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| CN101664323B true CN101664323B (en) | 2011-06-22 |
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| CN102370499B (en) | 2010-08-26 | 2014-05-07 | 深圳迈瑞生物医疗电子股份有限公司 | Method and system for simultaneously displaying Doppler image, B-type image and colored blood flow image |
| CN104434182A (en) * | 2013-09-16 | 2015-03-25 | 苏州边枫电子科技有限公司 | Wireless ultrasonic detecting system based on roller mechanical switching |
| KR101792591B1 (en) * | 2014-09-01 | 2017-11-01 | 삼성메디슨 주식회사 | Medical Imaging Apparatus and Method for Generating a Medical Image |
| EP2989992B1 (en) | 2014-09-01 | 2022-11-16 | Samsung Medison Co., Ltd. | Medical imaging apparatus and method of generating medical image |
| CN108577891B (en) * | 2017-12-29 | 2021-07-23 | 深圳开立生物医疗科技股份有限公司 | Method and equipment for simultaneously imaging blood flow Doppler and pulse Doppler |
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Assignee: CHISON MEDICAL IMAGING, Co.,Ltd. Assignor: Wuxi Xiangsheng Technology Co.,Ltd. Contract record no.: 2010320001085 Denomination of invention: Method for switching imaging state at real time by ultrasonic equipment in Doppler blood flow measurement License type: Exclusive License Open date: 20100310 Record date: 20100816 |
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