JPH08623A - Ultrasonic diagnostic device - Google Patents

Abstract

PURPOSE:To provide an ultrasonic diagnostic device by which measured values of various living body phenomena can be simply displayed and more efficiently recorded. CONSTITUTION:In an ultrasonic diagnostic device to produce and display an ultrasonic wave image by using a signal obtained by scanning a two dimensional area of an examinee by an ultrasonic wave, this device is provided with a living body phenomenon measuring part 3 to measure a living body phenomenon of the examinee with the lapse of time and a living body phenomenon recording output part 4 which stores a measured result by the living body phenomenon measuring part 3 and outputs the measured result.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic diagnostic apparatus which scans a two-dimensional region of a subject with ultrasonic waves and creates and displays an ultrasonic image of the two-dimensional region using a signal obtained by scanning the ultrasonic wave. .

[0002]

2. Description of the Related Art When a loading drug such as dopamine is administered to blood, the pulsatile function of the heart changes depending on the dose.
An ultrasonic load diagnostic method is a diagnostic method utilizing this.
The loading drug is administered intravenously using a blood transfusion pump.
The transfusion pump administers the loading drug while changing its dose over time. The examiner diagnoses the motion state of the heart wall, which changes with a change in the dose of the loaded drug, while observing a real-time ultrasonic image. This diagnosis often involves
Reference is made to various biological phenomena such as cardiac output, heart rate, blood pressure, oxygen saturation.

However, at present, it is very troublesome to record the measured values of each biological phenomenon by an examiner, and it is very troublesome, and the recorded measured values of each biological phenomenon and ultrasonic waves are recorded. There is also a concern that it may not be possible to deal with images at a later date. Furthermore, there are cases where feature quantities such as the rate of change of the measured value of each biological phenomenon are necessary for diagnosis, but in this case, the labor of calculating this feature quantity is required, which is very troublesome, and the ultrasonic wave It was not possible to refer to this feature quantity in real time while looking at the image.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides an ultrasonic diagnostic apparatus capable of easily displaying measured values of various biological phenomena and recording them more efficiently. The purpose is to provide.

[0005]

The present invention provides an ultrasonic diagnostic apparatus for scanning a two-dimensional region of a subject with ultrasonic waves and creating and displaying an ultrasonic image using signals obtained by the ultrasonic wave.
It is provided with a measuring unit that measures the biological phenomenon of the subject over time, and a storage output unit that stores the measurement result of the measuring unit and outputs the measurement result.

[0006]

According to the present invention, the measurement result of the biological phenomenon by the measuring means is stored and the measurement result is output. Therefore, it is possible to record and output the measurement results of various biological phenomena without inconvenience to the inspector.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an ultrasonic diagnostic apparatus according to the present invention will be described below with reference to the drawings. Here, an ultrasonic diagnostic apparatus compatible with the ultrasonic load diagnostic method will be described as an example. The ultrasonic load diagnostic method is as follows. When a loading drug such as dopamine is administered into blood, the pulsating movement of the heart changes depending on the dose. The pulsating function of the heart. An ultrasonic load diagnostic method is a diagnostic method utilizing this. Ultrasonic Diagnostic Device for Scanning Two-Dimensional Area of Subject with Ultrasonic Wave and Creating and Displaying Ultrasonic Image Using Signal Obtained by This Ultrasonic Diagnostic Device FIG. 1 is a block diagram of an embodiment. The ultrasonic diagnostic apparatus of the present embodiment includes an ultrasonic probe 1, an ultrasonic diagnostic apparatus main body 2, a biological phenomenon measuring unit 3, a biological phenomenon recording output unit 4,
It is composed of a controller 5 for controlling the respective units 2, 3 and 4.

At the tip of the ultrasonic probe 1, a transducer array in which a plurality of transducers are linearly arranged is housed. Here, the ultrasonic probe 1 will be described as an electronic scanning type corresponding to sector scanning, but it cannot be denied that it is a type corresponding to other scanning such as linear scanning.

The ultrasonic diagnostic apparatus main body 2 includes a transmission / reception system 21.
A B-mode processing system 22, a Doppler processing system 23, a digital scan converter (DSC) 24, a display monitor 25, and a recording unit 26. The transmission / reception system 21 scans a two-dimensional region of the subject with ultrasonic waves via the ultrasonic probe 1 according to the pulse Doppler method. Specifically, the transmission / reception system 21 transmits an ultrasonic beam to the subject by applying a pulse drive voltage while giving a delay time to each transducer of the ultrasonic probe 1. In addition, the transmission / reception system 21 receives a reflected wave from the subject as an electric signal via the ultrasonic probe 1, adds a delay time to the reception signal of each transducer, adds it, and outputs it. Further, the transmission / reception system 21 scans the two-dimensional region of the subject by repeating transmission / reception of the ultrasonic beam while changing the delay time during transmission and during reception. The output from the transmission / reception system 21 is
It is taken into the B-mode processing system 22 and the Doppler processing system 23.

The B-mode processing system 22 creates an ultrasonic image (morphological image) of a two-dimensional area by detecting the envelope of the output signal from the transmission / reception system 21 and performs digital scanning.
Output to the converter 24.

The Doppler processing system 23 detects the information of the Doppler frequency deviation (deviation between the transmission center frequency and the reception frequency) of each point in the two-dimensional area included in the output signal from the transmission / reception system 21. Various ultrasonic images, that is, an average velocity image of blood flow, a dispersion image, and a power image are created by the above, and output to the digital scan converter 24. Since this frequency analysis technique is well known and does not represent the characteristics of the present invention, its description is omitted.

Digital scan converter 24
Reads the stored ultrasonic image on the display monitor 25 and the recording unit 26 by the television system. Display monitor 25
Displays an ultrasound image. The recording unit 26 stores an ultrasonic image using an optical disk or a magnetic disk as a storage medium.

The biological phenomenon measuring unit 3 measures various types of biological phenomena of a subject over time, and includes a cardiac output calculating unit 31, a heart rate measuring unit 32, a blood pressure monitor 33, and Control unit 3 for oxygen saturation measuring unit 34 and blood transfusion pump 36
5 are included, and cardiac output, heart rate, blood pressure, oxygen saturation, and dose of the loaded drug are measured as biological phenomena.
The cardiac output calculation unit 31 takes in the average velocity of each point on the line crossing the blood vessel of the average velocity image from the digital scan converter 24, multiplies each of these average velocities by the unit area in the blood vessel cross section, and adds them. The instantaneous blood flow is calculated by repeating the calculation, and this calculation is repeated to add the instantaneous blood flow obtained in one heartbeat period to calculate the stroke volume. It measures the cardiac output delivered from the heart in one minute. The method for calculating the stroke volume and the cardiac output is not limited to this measurement method, and other measurement methods such as the FICK method, the electromagnetic blood flow meter method, and the indicator dilution method may be used. . The heart rate measuring unit 32 includes an electrocardiograph and an analyzing unit that analyzes the electrocardiographic waveform collected by the electrocardiograph to calculate the heart rate, but of course, may have another configuration. . The sphygmomanometer 33 measures blood pressure by any one of an open blood method (direct method), a non-open blood method (indirect method), and other measurement methods. The oxygen saturation amount measurement unit 34 measures the oxygen saturation amount. The blood transfusion pump 36 is for administering a load drug into the bloodstream, and the control unit 35 controls the operation of the blood transfusion pump 36 to adjust the dose per unit time. Dose data is output.

The biological phenomenon recording / outputting section 4 records various biological phenomena measured by the biological phenomenon measuring section 3 and displays the digital phenomena of the ultrasonic diagnostic apparatus main body section 2 in order to display them.
Output to the scan converter 24. The biological phenomenon record output unit 4 includes a CPU 41, a parameter designation unit 42, a timing input unit 43, a memory 44, and a graph creation unit 4
5, a feature amount calculation unit 46, and an interface (I / F)
And 47. The memory 44 is the interface 4
It is connected to each unit 31 to 35 of the biological phenomenon measuring unit 3 via 7.

The parameter designating section 42 provided in the console is for designating a biological phenomenon desired to be recorded and output (displayed) by the examiner from among various biological phenomena which can be measured by the biological phenomenon measuring section 3. It is an input device. The CPU 41 displays the parameter specification table on the display monitor 25 via the digital scan converter 24. As shown in FIG. 2, the parameter specification table is composed of a list of all biological phenomena that can be measured by the biological phenomenon measuring unit 3 and a column for specifying the necessity of recording and the necessity of display for each biological phenomenon. To be done. The parameter specification table may have the configuration shown in FIG. 3, which will be described later. The inspector operates the parameter specifying unit 42 to specify whether to record or not to display, and to display or not to display each biological phenomenon.

The timing input section 43 provided in the console selectively operates in either a manual mode or an automatic mode. When the manual mode is selected, the biophenomenon item (parameter) measured by the biophenomenon measuring unit 3 at the timing when the switch included in the timing input unit 43 is turned on by the inspector and designated by the parameter designating unit 42. ) Is stored in the memory 44 together with the measurement time under the control of the CPU 41. The measurement time here corresponds to the elapsed time from the time when the administration of the loading reagent is started, for example. In order to measure this measurement time, a timer is connected to or built in the CPU 41. The automatic mode includes a time lapse mode in which the measured value of the biological phenomenon is stored and displayed every time a predetermined time has elapsed from the time when the administration of the loading reagent was started, and the dose reagent of the loading reagent reaches the predetermined amount stepwise. Has a dose mode in which the measured value of the biological phenomenon is repeatedly stored and displayed.
Either mode is selected by the inspector via.

The graph creating section 45 distributes the measured values at different measuring times stored in the memory 44 along the time axis or the change axis of the dose so that the biological phenomenon as shown in FIG. A graph showing a change in the living body or a graph showing a change in a biological phenomenon associated with a change in the dose is prepared, and this graph is displayed on the display monitor 25 via the digital scan converter 24.

The feature amount calculation unit 46 calculates the feature amount for each biological phenomenon from the graph of the graph creation unit 45, and digitally calculates
This characteristic amount is displayed on the display monitor 25 via the scan converter 24. The feature amount referred to here is the slope coefficient of the graph, that is, the rate of change in the measured value of the biological phenomenon over time or the rate of change in the measured value with changes in the dose.

Next, the operation of this embodiment will be described. Here, as described above, the ultrasonic load diagnostic method is applied for diagnosing the state change of the pulsating motion of the heart while administering a loading drug such as dopamine into blood.

First, as a preparatory step, one or more of the various biological phenomena that can be measured by the biological phenomenon measuring unit 3 via the parameter designating unit 42 are desired to be recorded and output (displayed) by the inspector. The biological phenomenon of is specified. At this time, one of the first parameter specification table shown in FIG. 2 and the second parameter specification table shown in FIG.
Is displayed on the display monitor 25. When the graph is not displayed, the first parameter specification table is selected, and when the graph is displayed, the second parameter specification table is selected. This selection is performed by the operator operating the parameter specifying unit 42. When the graph is not displayed, the operator specifies the recording (ON) / not (OFF) and displays (ON) /
Whether it is not performed (OFF) is designated for each biological phenomenon. At this time, the measurement time is also designated to be recorded (ON) / not recorded (OFF) and displayed (ON) / not recorded (OFF). In the case of displaying a graph, as shown in FIG. 3, in addition to the designation items when the graph is not displayed, the conditions for creating the graph are set by specifying the parameters corresponding to the vertical and horizontal axes of the graph. In the case of FIG. 3, a graph showing changes in heart rate with changes in dose and a graph showing changes in cardiac output with changes in dose are created. Also, the timing input unit 4
Either the manual mode or the automatic mode is selected via the mode selection switch 3 of FIG. When the automatic mode is selected, either the time lapse mode or the dose mode is further selected.

When such a preparation step is completed, the transmission / reception system 21 actually scans the two-dimensional region of the subject with the ultrasonic beam through the ultrasonic probe 1 and various biological phenomena by the biological phenomenon measuring unit 3 ( Cardiac output, heart rate, blood pressure,
Measurement of oxygen saturation amount) is started. However, no loading drug is administered at this stage. The switch of the timing input section 43 is turned on by the inspector at an arbitrary timing. As a result, it is measured in a state where no load is applied,
In addition, the measured value of the biological phenomenon item designated via the parameter designation unit 42 is stored in the memory 44 under the control of the CPU 41.

When a trigger switch for instructing the start of load administration (not shown) is operated by the examiner, the transfusion pump 36 is activated by the control unit 35, and the administration of the load drug to the blood of the subject is started.

When the manual mode is selected, the timing switch included in the timing input section 43 is repeatedly turned on by the inspector at an arbitrary timing. Then, the measured value of the biological phenomenon item measured by the biological phenomenon measuring unit 3 at each timing and designated to be stored via the parameter designating unit 42 is measured in the memory 44 under the control of the CPU 41. The measured values of the biological phenomenon items that are stored together with the parameter specifying unit 42 and are specified to be displayed are summarized in a table as shown in FIG. 4 together with the respective measurement times and sent to the digital scan converter 24. To be Here, the table is 1 with the ultrasonic image.
After being combined with the frame, it is displayed on the same screen as the ultrasonic image on the display unit 25 as shown in FIG. Further, this frame data is sent to the recording unit 26 and stored therein. As described above, synthesizing the measured value of the biological phenomenon and the ultrasonic image in the same frame and storing them requires that the measured value of the biological phenomenon be temporally matched with the ultrasonic image when the ultrasonic image is reproduced. No, it can be said to be preferable.

When the time lapse mode of the automatic mode is selected, the biological phenomenon measuring unit 3 measures each time a predetermined time elapses from the time when the loading reagent is started by the CPU 41, and the parameter specifying unit 42 is used. The measured values of the biological phenomenon items designated to be stored are stored, and the measured values of the biological phenomenon items designated to be displayed via the parameter designating unit 42 are summarized in a table together with the respective measurement times, and the measured values are digitally displayed. -Displayed on the display unit 26 via the scan converter 24.

When the dose mode of the automatic mode is selected, every time the dose amount of the load reagent reaches the predetermined amount by the CPU 41, it is measured by the biological phenomenon measuring unit 3 and stored via the parameter designating unit 42. The measured values of the biological phenomenon items designated to be performed are stored, and the measured values of the biological phenomenon items designated to be displayed via the parameter designating unit 42 are summarized in a table together with the respective measurement times, and the measured values are digitally displayed. It is displayed on the display unit 26 via the scan converter 24.

All the measured values stored in the memory 44 are sent to the graph creating section 45. The graph creating unit 45 distributes the parameters with different measurement times stored in the memory 44 along the time axis or the change axis of the dose to show a graph showing the change over time of the biological phenomenon or the change of the dose. A graph representing changes in the accompanying biological phenomenon is created and displayed on the display monitor 25 via the digital scan converter 24. FIG. 5 shows the heart rate (H
2 shows a graph showing changes in R) and a graph showing changes in cardiac output (CO) with changes in dose.

The graph calculator 4 is operated by the feature quantity calculator 46.
5, the characteristic amount of the graph created by 5 is calculated, and the display monitor 2 is operated via the digital scan converter 24.
5 is displayed. As the feature amount, the slope coefficient of the graph, that is, the rate of change of the measured value of the physiological phenomenon with the passage of time or the change in the dose is calculated.

As described above, according to the present embodiment, the measured value of the biological phenomenon is stored or displayed only by operating the switch or automatically. Therefore, the burden on the inspector of the measured values of various biological phenomena is reduced. Further, since the measured value of the biological phenomenon is stored together with the measured time, it is not necessary to temporally match the measured value of the biological phenomenon with the ultrasonic image when the ultrasonic image is reproduced at a later date. Moreover, since the measured value of the biological phenomenon is combined with the ultrasonic image and displayed and stored, it is not necessary to temporally match the measured value of the biological phenomenon with the ultrasonic image. Further, since the necessity of recording and displaying the measured value of the biological phenomenon can be designated individually, the storage efficiency is good. Further, since only the measured value of the biological phenomenon measured at the necessary timing is stored, the storage efficiency is good. In addition, changes in the measured values of biological phenomena over time and changes with changes in dosage are displayed in a graph, so that diagnostic efficiency and accuracy are improved. Also, from this graph, the rate of change of the measured value of the biological phenomenon over time or with changes in the dose is calculated,
Since it is displayed, the diagnostic efficiency and accuracy are improved.

Of course, the present invention is not limited to the above-mentioned embodiments, but can be variously modified and carried out. For example, if the transfusion pump is operated from the console via the controller 5 to control the administration of the load drug, the inspector can conveniently perform all operations on the console.

[0030]

INDUSTRIAL APPLICABILITY The present invention provides an ultrasonic diagnostic apparatus which scans a two-dimensional region of a subject with ultrasonic waves and creates and displays an ultrasonic image using signals obtained by the ultrasonic waves. The measurement result of the biological phenomenon by the measurement unit is stored by including the measurement unit that measures with time and the storage output unit that stores the measurement result by the measurement unit and outputs the measurement result. It is possible to provide an ultrasonic diagnostic apparatus capable of recording and outputting measurement results of various biological phenomena without causing trouble to the inspector.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of an ultrasonic diagnostic apparatus according to the present invention.

FIG. 2 is a diagram showing a first parameter specification table.

FIG. 3 is a diagram showing a second parameter specification table.

FIG. 4 is a diagram showing a table in which measured values of biological phenomena are summarized.

5 is a diagram showing an example of a graph created by the graph creating unit in FIG. 1. FIG.

6 is a diagram showing an example of a display screen of the display monitor of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Ultrasonic probe, 2 ... Ultrasonic diagnostic apparatus main-body part, 3 ... Biological phenomenon measurement part, 4 ... Biological phenomenon recording output part, 5 ... Controller, 21 ... Transmission / reception system, 22
... B mode processing system, 23 ... Doppler processing system, 24 ... Digital scan converter, 25 ... Display monitor,
26 ... Recording unit, 31 ... Cardiac output calculator, 3
2 ... Heart rate measuring unit, 33 ... Sphygmomanometer, 34 ... Oxygen saturation measuring unit, 35 ... Control unit, 36 ... Blood transfusion pump, 41 ... CPU, 42 ... Parameter designating unit,
43 ... Timing input section, 44 ... Memory,
45 ... Graph creation unit, 46 ... Feature amount calculation unit, 4
7 ... Interface.

Claims (8)

[Claims] 1. A two-dimensional region of a subject is scanned with ultrasonic waves,
In an ultrasonic diagnostic apparatus that creates and displays an ultrasonic image using the signal obtained by this, measuring means for measuring the biological phenomenon of the subject over time, and the measurement result by the measuring means is stored and An ultrasonic diagnostic apparatus comprising: a storage output unit that outputs a result. 2. The specification means for the inspector to selectively specify a type to be stored and output from the plurality of kinds of biological phenomena, the measuring means measuring a plurality of kinds of biological phenomena. The ultrasonic diagnostic apparatus according to claim 1, further comprising: means for storing and outputting a measurement result of a biological phenomenon of a type designated through the designating means. 3. The storage output means has a timing designating means, and stores the measurement result measured by the measuring means at the timing designated by the timing designating means. Item 2. The ultrasonic diagnostic apparatus according to Item 2. 4. The ultrasonic diagnostic apparatus according to claim 1, wherein the storage output unit displays the measurement result on the same screen as the ultrasonic image. 5. The storage output means has a means for creating and outputting a graph showing a change in the measurement result measured by the measuring means over time, according to any one of claims 1 to 4. The ultrasonic diagnostic apparatus according to item. 6. The ultrasonic diagnostic apparatus according to claim 1, wherein the storage output unit has a unit that calculates and outputs a rate of change from the measurement result. 7. An administration means for administering a load drug to a subject is further provided, wherein the memory output means is provided at a plurality of timings at which a dose of the load drug administered by the administration means reaches a predetermined amount stepwise. The ultrasonic diagnostic apparatus according to any one of claims 1 to 6, wherein the measurement result measured by the measuring unit is stored. 8. The method according to claim 1, further comprising administration means for administering a load drug to a subject, and means for controlling administration of the administration means.
An ultrasonic diagnostic apparatus according to the item.