JPH0591615U - Ultrasonic diagnostic equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide information useful for more comprehensive diagnosis. [Structure] Ultrasonic images such as B / M mode and E
The CG waveform is displayed and the ECG electrode 9 and the ECG are displayed.
The ECG signal obtained by the amplifier 10 is frequency-analyzed by the FFT calculator 8 to display the frequency spectrum of the ECG signal. The gate freeze controller controls the section of the ECG signal that the FFT calculator 8 frequency-analyzes based on the R wave pulse from the R wave detector 11 and a user instruction from the keyboard 12. [Effect] Since it is possible to display the frequency spectrum of the ECG signal, the PCG signal, etc. due to the cyclic activity of the heart together with the ultrasonic image, it is suitable for cardiovascular diagnosis of the heart and the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ultrasonic diagnostic apparatus, and more particularly to an ultrasonic diagnostic apparatus that displays an ultrasonic image based on an ultrasonic echo signal.

[0002]

[Prior Art]

 FIG. 7 is a block diagram of an example of the ultrasonic diagnostic apparatus. FIG. 8 is an exemplary diagram of a display screen 6G of the display unit 6 of the ultrasonic diagnostic apparatus 51 of FIG. In this ultrasonic diagnostic apparatus 51, ultrasonic echo signals are obtained by the probe 2 and the transmission / reception unit 3, and the B mode display is performed by the area 6Gg of the display screen 6G via the B / M mode processing unit 4 and the display control unit 55. Then, the M mode is displayed in area 6Gh. Further, the Doppler signal detection unit 7 obtains the Doppler signal, and the FFT operation unit 58 is used to display the Doppler spectrum in the area 6Gi of the display screen 6G. Further, an ECG signal is obtained by the ECG electrode 9 and the ECG amplification section 10 attached to a predetermined body surface portion, and the ECG waveform display as shown in FIG. 9 is performed in the area 6Gj of the display screen 6G.

Further, for example, when the user inputs the freeze delay time TH from the R wave (see FIG. 9) as the execution point of the freeze from the keyboard 12, the freeze control unit 63 causes the R wave pulse from the R wave detection unit 11 ( (See FIG. 9) and freeze execution data based on the freeze delay time TH from the keyboard 12 is sent to the display controller 55, and each ultrasonic image can be frozen (heartbeat synchronized display).

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional ultrasonic diagnostic apparatus 51, heart disease can be diagnosed by associating the areas 6Gg, 6Gh, and 6Gi of the display screen 6G with B mode display, M mode display, Doppler spectrum display, and area 6Gj ECG waveform display. It has become.

On the other hand, as the information of the circulatory organ, frequency characteristics of each biological signal can be considered in addition to the temporal change of each biological signal.

Therefore, an object of the present invention is to provide an ultrasonic diagnostic apparatus capable of displaying the frequency characteristics of each biological signal, thereby providing more detailed information for cardiovascular diagnosis. To do.

[0007]

[Means for Solving the Problems]

 The ultrasonic diagnostic apparatus of the present invention is an ultrasonic diagnostic apparatus that displays an ultrasonic image based on an ultrasonic echo signal, and a heart activity detecting unit that detects the cyclic activity of the heart and the detected cyclic activity signal of the heart. The present invention is structurally characterized in that it is provided with frequency analysis means for frequency analysis and display control means for displaying the frequency spectrum of the periodic activity signal of the heart by the frequency analysis means together with the ultrasonic image.

In the above configuration, it is preferable to further include an analysis section setting means for setting a section for frequency analysis of the cardiac cycle activity signal based on a user's instruction.

[0009]

[Action]

 In the ultrasonic diagnostic apparatus of the present invention, the frequency analysis means frequency-analyzes the periodic activity signal of the heart detected by the heart activity detection means. The frequency spectrum of the cyclic activity signal of the heart by the frequency analysis means is displayed together with the ultrasonic image by the display control means.

Therefore, since the frequency spectrum is obtained as new information of the heart, it becomes possible to accurately diagnose the cardiovascular system such as heart disease.

[0011]

【Example】

 The invention will be described below based on the embodiments shown in the drawings. However, this does not limit the present invention. FIG. 1 is a block diagram of an ultrasonic diagnostic apparatus according to an embodiment of the present invention. FIG. 2 is an exemplary diagram of a display screen 6G of the display unit 6 of the ultrasonic diagnostic apparatus 1 of FIG.

The ultrasonic diagnostic apparatus 1 includes a probe 2, a transmitting / receiving unit 3, a B / M mode processing unit 4, a display control unit 5, a display unit 6, a Doppler signal detection unit 7, an FFT calculation unit 8, an ECG electrode 9, It is composed of an ECG amplifier 10, an R wave detector 11, a keyboard 12, and a gate freeze controller 13.

In the ultrasonic diagnostic apparatus 1, the B mode display is performed in the area 6Ga of the display screen 6G and the M mode display is performed in the area 6Gb, similarly to the conventional apparatus 51. Further, the Doppler spectrum display is performed in the area 6Gc of the display screen 6G, and the ECG waveform display as shown in FIG. 3 is performed in the area 6Gd. However, TR, TW, and M in FIG. 3 will be described later. However, unlike the conventional device 51, the ECG frequency spectrum display as shown in FIG. 4 is performed in the area 6Ge of the display screen 6G.

The display of the frequency spectrum of the ECG is performed by the user providing a section for frequency analysis of the ECG signal. That is, while referring to the ECG waveform displayed in the area 6Gd of the display screen 6G, the user uses the keyboard 12 to determine the delay time TR from the R wave (see FIG. 3) and the frequency analysis section of the E CG signal. Enter the corresponding time interval TW (see FIG. 3).

The gate / freeze control unit 13 determines the mark M corresponding to the section in which the ECG signal is frequency-analyzed based on the R wave pulse from the R wave detection unit 11 and the delay time TR and the time interval TW from the keyboard 12. Mark display data for displaying (see FIG. 3) is sent to the display control unit 5. Further, a gate signal for cutting out the ECG signal for frequency analysis is output to the FFT operation unit 8. The FFT calculation unit 8 frequency-analyzes the ECG signal cut out by the gate signal, and sends the result data to the display control unit 5.

The display control unit 5 displays the mark M as shown in FIG. 3 on the area 6G d of the display screen 6G based on the mark display data, and displays the mark M on the area 6Ge of the display screen 6G based on the result data. The frequency spectrum of the ECG as shown in FIG. 4 is displayed.

The mark M sweeps with the ECG waveform in the area 6Gd of the display screen 6G as time passes, and is updated at a new time interval TW. Further, the frequency spectrum of the ECG is similarly updated. In the above embodiment, since the FFT calculation unit 8 is used for both the Doppler spectrum display and the ECG frequency spectrum display, there is an advantage that the load on the hardware can be reduced. Further, the display of the mark M has an advantage that the user can visually confirm the frequency analysis section. As a modified example, a PCG, pulsation, or other frequency spectrum is displayed. Further, instead of the gate freeze controller 13, a gate freeze controller for calculating a heartbeat cycle from the R wave pulse and automatically setting a gate time for cutting out a frequency analysis section of an ECG signal based on the heartbeat cycle. There is a thing with.

FIG. 5 is a block diagram of an ultrasonic diagnostic apparatus according to another embodiment of the present invention. In this ultrasonic diagnostic apparatus 21, a probe 2, a transmitting / receiving section 3, a B / M mode processing section 4, a display section 6, an ECG electrode 9, an ECG amplifying section 10, an R wave detecting section 11, a keyboard 12, a gate. The freeze controller 13 is a component similar to the ultrasonic diagnostic apparatus 1 shown in FIG. 1, and is given the same reference numeral.

The ultrasonic diagnostic apparatus 21 includes a display controller 25 and an FFT calculator 28 instead of the display controller 5, the Doppler signal detector 7, and the FFT calculator 8 of the ultrasonic diagnostic apparatus 1. That is, since it does not have the function of performing the Doppler spectrum display, it is provided with the dedicated FFT calculation unit 28 for frequency-analyzing the ECG signal.

FIG. 6 is a block diagram of an ultrasonic diagnostic apparatus 31 according to another embodiment of the present invention. The ultrasonic diagnostic apparatus 31 has a configuration in which a memory 32 and a memory control unit 33 are added to the ultrasonic diagnostic apparatus 21, and the B / M memory stored in the memory 32 by the memory control unit 33 according to a user's designation. The data in the designated section can be read out and displayed from the mode display data and the ECG waveform data. Then, when the user arbitrarily designates the frequency analysis section on the ECG waveform display, the frequency spectrum display of the ECG in the frequency analysis section is performed.

[0021]

[Effect of the device]

 According to the ultrasonic diagnostic apparatus of the present invention, it is possible to display the frequency spectrum of the ECG signal, the PCG signal, etc. due to the cyclic activity of the heart together with the ultrasonic image, and thus it is suitable for the diagnosis of the circulatory system of the heart and the like.

[Brief description of drawings]

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

2 is an exemplary diagram of a display screen of the apparatus of FIG. 1. FIG.

3 is an exemplary diagram of an ECG waveform displayed on the display unit of the apparatus of FIG. 1. FIG.

4 is an exemplary diagram of a frequency spectrum of an ECG displayed on the display unit of the device of FIG.

FIG. 5 is a block diagram of an ultrasonic diagnostic apparatus according to another embodiment of the present invention.

FIG. 6 is a block diagram of an ultrasonic diagnostic apparatus according to still another embodiment of the present invention.

FIG. 7 is a block diagram of an example of a conventional ultrasonic diagnostic apparatus.

8 is an exemplary view of a display screen of the apparatus of FIG.

9 is an exemplary diagram of an ECG waveform and an R wave pulse according to the device of FIG. 7. FIG.

[Explanation of symbols]

 1 Ultrasonic Diagnostic Device 4 B / M Mode Processing Section 5 Display Control Section 6 Display Section 7 Doppler Signal Detection Section 8 FFT Calculation Section 9 ECG Electrode 10 ECG Amplification Section 11 R Wave Detection Section 13 Gate Freeze Control Section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Masao Morishita 127, 4-7 Asahigaoka, Hino-shi, Tokyo Inside Yokogawa Medical Systems Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. An ultrasonic diagnostic apparatus for displaying an ultrasonic image based on an ultrasonic echo signal, wherein heart activity detecting means for detecting cardiac cycle activity, and frequency analysis for performing frequency analysis on the detected cardiac cycle activity signal. An ultrasonic diagnostic apparatus comprising: means and a display control means for displaying the frequency spectrum of the periodic activity signal of the heart by the frequency analysis means together with an ultrasonic image. 2. The ultrasonic diagnostic apparatus according to claim 1, further comprising an analysis section setting means for setting a section for frequency analysis of a cardiac cycle activity signal based on a user's instruction. Sound wave diagnostic equipment.