JPS6144018B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic diagnostic apparatus that accumulates past data and displays it in a graph together with standard data so that the progress up to the present can be grasped.

In recent years, with the development of ultrasonic diagnostic technology, displaying diagnostic data on diagnostic devices has become popular.

For example, as shown in Fig. 1, the fetal head 2 of the fetal image is displayed in B mode on the display unit 1 of the ultrasonic diagnostic device, and the caliper markers 3 and 3' are set on the fetal head by operating the attached caliper unit for distance measurement. The distance between the markers 3 and 3' is automatically measured by aligning the two points on the diameter of 2 (the large transverse diameter of the fetal head), and the value is displayed digitally as shown in 4.

Further, when the number of pregnancy cycles of a pregnant woman is keyed in from the data input keyboard, the standard value of the corresponding number of cycles stored in the storage device in advance is read out, and the number of cycles and the standard value are digitally displayed as shown by 5.

Conventional devices have the function of measuring and displaying the standard values and measured values of such specific diagnostic items, and by comparing and judging these displayed measured values and standard values, the fetal head diameter (large lateral diameter of the fetal head) can be determined. ) You can know the state of fetal development based on the standard.

However, by simply displaying standard values and measured values, although it is possible to judge the developmental state at that point in time, it is not possible to know the process of fetal development.

In other words, it is impossible to know whether the fetus is progressing normally after pregnancy.

What is important in making a diagnosis is not only the current situation but also the past history.

Therefore, there is a need for an ultrasonic diagnostic apparatus that has a display function that allows comprehensive diagnosis based on such progress.

The present invention has been made in view of the above circumstances, and it stores individual measurement data for each diagnosis, and at the time of diagnosis, in addition to displaying the current measurement data, the stored past data is graphed together with standard values. It is an object of the present invention to provide an ultrasonic diagnostic apparatus which allows the progress of growth to be known in comparison with a standard case and allows more accurate diagnosis.

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.

FIG. 2 is a block diagram showing the schematic configuration of this device.

In the figure, 21 is a keyboard for manually inputting data, 22 is a display device using a CRT (cathode ray tube) or the like to display images, characters, etc., and 23 is a caliper unit for distance measurement. This caliper unit 23 generates a cross-shaped mark on the display device 22 to indicate the position as shown in FIG. The distance between the measurement points is determined by obtaining an output corresponding to the mark setting position, such as the resistance value or voltage of the mark. 2
4 is a character generation circuit that generates display signals such as numbers and characters based on input data and supplies them to the display device 22 for display; 25 is a character generation circuit that generates display signals such as figures based on the input data and supplies them to the display device 22; It is a graphic display device that displays images by inputting images. Reference numeral 26 denotes an ultrasonic diagnostic apparatus main body, which transmits an ultrasonic beam from an ultrasonic probe 27 brought into contact with the subject P and captures its echo to obtain an ultrasonic image. 28 temporarily stores this ultrasound image and displays it on the display device 2.
This is a scan converter that reads out a video signal corresponding to a scanning speed of 2, converts it into a video signal corresponding to the display format of the display device 22, and supplies it to the display device 22 to display an ultrasonic image.

Reference numeral 29 is a calculation unit composed of, for example, a microcomputer, which controls the entire system, processes the output data from the keyboard 21, the caliper unit 23, etc., and stores it in an external storage device 30 as necessary. The data is read out, processed if necessary, and provided to the character generation circuit 24 and the graphic display circuit 25. The external storage device 30 is, for example, a floppy disk device or a magnetic tape storage device, and the keyboard 2
1 and the caliper unit 23, as well as the number of gestational cycles and standard fetal growth data (standard fetal head major transverse diameter, etc.), are stored.
31, 32, . . . 36 are gate circuits, which are controlled by the arithmetic unit 29 to control the reception and reception of signals such as data.

Next, the operation of this apparatus having the above configuration will be explained.

The ultrasound diagnostic apparatus main body 26 is operated to excite the ultrasound probe 27 to obtain an ultrasound image of the fetus from the abdomen of the subject P. This ultrasonic image is converted by the scan converter 28 into a video signal suitable for the display device 22 and displayed on the display device 22.
2, and is displayed in the horizontal half area of the display screen, as shown by A in FIG.

Now, assuming that the pregnant woman who is the subject has 30 gestational cycles, the gestational cycle number data "30" is keyed in from the keyboard 21. As a result, this data is sent to the calculation section 29, which operates the external storage device 30 and reads out the standard fetal head diameter data at the 30th week of pregnancy from among the stored contents.

The arithmetic unit 29 then provides this data to the character generation circuit 24. As a result, the character generating circuit 24 outputs a character display signal indicating the number of gestational cycles and the standard fetal head diameter, and displays it on the display device 22.
give to As a result, this display device 22
On the screen, data is displayed in letters at the bottom of the remaining half area B, as shown by C, such as ``30W'' for 30 laps, which is the number of pregnancy cycles, and ``80cm'' for its standard value.

Further, the calculation unit 29 reads out the standard value for each number of elapsed laps from the external storage device 30 and processes it to display it in a graph.
The processed data is supplied to the display device 22 to generate a display signal for displaying the transition in the standard case in a graph as shown by D in FIG.

Next, the operator operates the caliper unit 23,
Cross-shaped marks 3, 3' are aligned with both large lateral diameter edges of the head F of the fetal image E displayed on the screen of the display device 22.

Then, the calculation section 29 receives the output of the caliper unit 23, calculates the fetal head diameter based on this output, and causes the character generation circuit 24 to display the determined value of the fetal head diameter. give the data. As a result, the character generating circuit 24 generates a display signal for displaying the value measured by the caliper and provides it to the display device 22, and a display signal is displayed on the display device 22 as shown by G in FIG. 3 if the measured value is 7 cm. For example, “7.0cm” will be displayed.

Next, when the operator keys in the ID number, which is the patient's individual identification code, and a storage instruction from the keyboard 21, the calculation unit 29 stores the keyed-in ID.
The system recognizes the number and simultaneously controls the external storage device 30 to store the data of this measurement value "7.0cm" together with the ID number or the pregnancy cycle keyed in earlier in the storage area allocated to the ID number. Ru.

Now regular diagnostic data can be stored on the external storage device 30.
It will be remembered.

Next, the keyboard 21 is operated to instruct graph display. As a result, the arithmetic unit 29 uses the external storage device 3
ID recognized by controlling 0 and keying in first
Search the file for the ID number, read out all stored data for the ID number, and perform processing for graph display.

The processed data is then provided to the graphic display circuit 25. Then, the graphic display circuit 25 generates a display signal to graphically display the measured values of the patient as shown by H in FIG. 3 in correspondence with the number of pregnancy cycles, and supplies the display signal to the display device 22 for display.

Therefore, in addition to the numerical display of measured values and standard values that have been done in the past, it is possible to compare the growth trends in the standard case and the growth trends of the patient in question, allowing for more objective and accurate growth diagnosis. I can do it.

In this way, the B-mode image is displayed and a mark for distance measurement of the image is displayed on the display screen, and by moving this mark to match the measurement target part, the distance measurement data of the measurement target part is displayed together with the standard data. An ultrasonic diagnostic apparatus having a distance measurement function capable of performing a distance measurement includes a storage device for storing standard data and measurement data for each diagnosis, and the storage device stores the measurement data and stores the stored contents. The device is equipped with a device that reads out standard data and measured data, processes the read standard data and measured data, and displays the transition of each data in a graph that can be compared. The standard value for each period is memorized, and the major transverse diameter of the fetal head is measured for each patient diagnosis and stored for each patient in the storage device, and all the stored data for the patient can be read out as needed. Since the graph is displayed so that the progress of fetal head development can be compared with standard values, the state of fetal development can be objectively and accurately understood in obstetrics, providing an ultrasonic diagnostic device that is extremely effective for diagnosis. can do.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with appropriate modifications within the scope of the gist, and in the above embodiments, only the diameter and circumference of the baby's head are concerned. Although described above, the present invention is not limited to this and can be applied to general diagnostic information, and various diagnostic data such as gain values, echo coherence values, dynamic range values, etc. may also be used as necessary.

That is, the present invention is capable of storing diagnostic data and displaying changes over time, and can be applied to all diagnostic information that can be used for such purposes.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing how diagnostic data is displayed in a conventional ultrasonic diagnostic device, Fig. 2 is a block diagram showing an embodiment of the present invention, and Fig. 3 is a diagram showing an example of display of the device of the present invention. be. 3... Mark, 4, G... Display of measured value, 5,
C...Standard value display, 21...Keyboard, 22
. . . Display device, 23 . . . Caliper unit, 24 . Arithmetic unit, 30...External storage device, D...Standard data graph, H...
Graph of measurement data.

Claims (1)

[Claims] 1 Displaying an ultrasonic image, displaying a mark for distance measurement of the image on the display screen, measuring the distance by moving this mark to align it with the part to be measured, and displaying the measured data together with standard data. In an ultrasonic diagnostic apparatus capable of An ultrasonic diagnostic apparatus comprising: a device for creating a graph tracing the temporal transition of data of corresponding items and displaying the graph on the display screen together with the transition of the standard data.