JPH07236637A - Control method for ultrasonic diagnosing device and ultrasonic diagnosing device - Google Patents

Abstract

PURPOSE:To conduct automatic control to keep a gain of a receiving analog system circuit properly. CONSTITUTION:DSC 4 divides an image into partial areas B1-B9, and aquires central values b1-b9 of frame data corresponding to the respective partial areas to be given to an auto gain controller 10. The auto gain controller 10 compares the central values b1 b9 with a designated proper value to detect the suitableness/unsuitableness of a central value of each partial area, and when the number of partial areas, the central values of which are unsuitable, larger than a designated threshold, a gain of a receiving analog system circuit 3 is changed. Thus, the gain of the receiving analog system circuit or the gain of TGC is kept automatically properly, so that a proper image can be always seen without frequent manual adjustment. Furthermore, it is possible to prevent the diagnosing time from being elongated by manual adjustment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling an ultrasonic diagnostic apparatus and an ultrasonic diagnostic apparatus, and more specifically to a gain (amplification degree) of a receiving analog circuit of the ultrasonic diagnostic apparatus.
Alternatively, the present invention relates to a control method for automatically controlling at least one of TGC (Time Gain Controll) gains and an ultrasonic diagnostic apparatus having a function of implementing the control method.

[0002]

2. Description of the Related Art FIG. 9 is a main part configuration diagram showing a B-mode receiving system of an example of a conventional ultrasonic diagnostic apparatus. This ultrasonic diagnostic apparatus 51 includes an ultrasonic probe 2 that receives an ultrasonic wave returned from a subject and outputs an ultrasonic echo signal, and an ultrasonic wave signal that amplifies the ultrasonic echo signal and performs analog processing to generate a sound ray signal. A receiving analog circuit 3 for outputting and a DSC (Digital Scan Converter) for generating frame data from the sound ray signal.
54, a monitor 5 for displaying an image based on the frame data, and a console 56 for giving a control signal for controlling the reception analog system circuit 3.

The reception analog system circuit 3 has a built-in main amplifier for amplifying an ultrasonic echo signal with an amplification degree that does not change with time. Further, the reception analog system circuit 3
Incorporates a TGC amplifier that amplifies an ultrasonic echo signal with an amplification degree that increases with time. Since this TGC amplifier has a greater attenuation as the ultrasonic wave from a deeper part of the subject, the TGC amplifier increases the amplification degree of the ultrasonic echo signal with time and compensates for the attenuation due to the depth. In this specification, the amplification degree of the main amplifier is simply called a gain, and the amplification degree of the TGC amplifier is called a TGC gain.

The console 56 comprises a rotary volume 6a for gain adjustment, a slide volume 6b for TGC gain adjustment, and a keyboard 6c for inputting various parameters. The operator can manually adjust the gain by operating the rotary volume 6a. Also, the slide volume 6
By operating b, the TGC gain can be manually adjusted for each partial region in the depth direction.

[0005]

In the conventional ultrasonic diagnostic apparatus 51, the gain can be manually adjusted by operating the rotary volume 6a, and the TGC gain can be manually adjusted by operating the slide volume 6b. However, there is a problem that the manual adjustment is not always properly performed by the operator. Further, this manual adjustment causes a problem that the diagnosis time becomes long. Therefore, the object of the present invention is to
It is an object of the present invention to provide a control method for an ultrasonic diagnostic apparatus that automatically controls the gain of a receiving analog system circuit so as to appropriately maintain the gain, and an ultrasonic diagnostic apparatus having a function of implementing the control method.

[0006]

According to a first aspect of the present invention, there is provided an ultrasonic probe for receiving an ultrasonic wave and outputting an ultrasonic echo signal, and amplifying the ultrasonic echo signal for analog processing. An ultrasonic diagnostic apparatus comprising: a receiving analog circuit that outputs a sound ray signal; a frame data generation unit that generates frame data from the sound ray signal; and an image display unit that displays an image based on the frame data. ,
A control method for an ultrasonic diagnostic apparatus, comprising: obtaining a representative value of the frame data and controlling the gain of a reception analog system circuit based on the representative value.

According to a second aspect of the present invention, an ultrasonic probe which receives an ultrasonic wave and outputs an ultrasonic echo signal, and an ultrasonic ray signal which amplifies the ultrasonic echo signal and performs analog processing to output a sound ray signal. In an ultrasonic diagnostic apparatus including a reception analog circuit, frame data generation means for generating frame data from the sound ray signal, and image display means for displaying an image based on the frame data, an image is displayed in a depth direction. Is divided into two or more partial areas, the representative value of the frame data corresponding to each partial area is acquired, and the TGC gain of the reception analog system circuit corresponding to each partial area is controlled based on each representative value. A method of controlling an ultrasonic diagnostic apparatus is provided.

According to a third aspect, the present invention provides an ultrasonic probe which receives ultrasonic waves and outputs ultrasonic echo signals, and an acoustic ray signal which amplifies the ultrasonic echo signals and performs analog processing. A representative of the frame data in an ultrasonic diagnostic apparatus including a receiving analog circuit, frame data generation means for generating frame data from the sound ray signal, and image display means for displaying an image based on the frame data. An ultrasonic diagnostic apparatus comprising: a representative value acquisition unit that acquires a value; and a control signal output unit that outputs a control signal that changes the gain of a reception analog system circuit based on the representative value. .

According to a fourth aspect, the present invention provides an ultrasonic probe which receives ultrasonic waves and outputs an ultrasonic echo signal, and an acoustic ray signal which amplifies the ultrasonic echo signal and performs analog processing. In an ultrasonic diagnostic apparatus including a reception analog system circuit, frame data generation means for generating frame data from the sound ray signal, and image display means for displaying an image based on the frame data, two or more images are displayed. Representative value obtaining means for obtaining a representative value of frame data corresponding to each partial area by dividing into partial areas, and outputting a control signal for changing the gain of the reception analog system circuit corresponding to each partial area based on each representative value An ultrasonic diagnostic apparatus is provided, which comprises:

In a fifth aspect, the present invention provides an ultrasonic probe that receives ultrasonic waves and outputs an ultrasonic echo signal, and an acoustic ray signal that amplifies the ultrasonic echo signal and performs analog processing. In an ultrasonic diagnostic apparatus including a reception analog circuit, frame data generation means for generating frame data from the sound ray signal, and image display means for displaying an image based on the frame data, an image is displayed in a depth direction. And a representative value acquisition means for acquiring a representative value of frame data corresponding to each partial area, and changing the TGC gain of the reception analog system circuit corresponding to each partial area based on each representative value. And a control signal output means for outputting a control signal to provide the ultrasonic diagnostic apparatus.

According to a sixth aspect, the present invention provides an ultrasonic probe which receives an ultrasonic wave and outputs an ultrasonic echo signal, and an acoustic ray signal which amplifies the ultrasonic echo signal and performs analog processing. In an ultrasonic diagnostic apparatus including a reception analog system circuit, frame data generation means for generating frame data from the sound ray signal, and image display means for displaying an image based on the frame data, two or more images are displayed. A representative value acquisition unit that divides into partial areas and acquires a representative value of frame data corresponding to each partial area is compared with each representative value and a predetermined appropriate value to determine whether the representative value of each partial area is appropriate or not. Comparing means for detecting, and control signal output means for counting the number of partial areas detected as inappropriate and outputting a control signal for changing the gain of the receiving analog system circuit when the predetermined threshold value is exceeded. To provide an ultrasonic diagnostic apparatus characterized.

According to a seventh aspect, the present invention provides an ultrasonic probe which receives an ultrasonic wave and outputs an ultrasonic echo signal, and an acoustic ray signal which amplifies the ultrasonic echo signal and performs analog processing. In an ultrasonic diagnostic apparatus including a reception analog circuit, frame data generation means for generating frame data from the sound ray signal, and image display means for displaying an image based on the frame data, an image is displayed in a depth direction. A representative value acquisition unit that divides into two or more partial areas and acquires a representative value of frame data corresponding to each partial area, and compares each representative value with a predetermined appropriate value to determine the representative value of each partial area. Comparing means for detecting suitability and unsuitability, and control signal output means for outputting a control signal for changing the TGC gain of the reception analog system circuit corresponding to the partial region where the suitability is detected are provided. To provide an ultrasonic diagnostic apparatus.

In the above structure, the representative value of the frame data is the frame data value at a specific position defined in the screen or each partial area, the maximum frame data value in the screen or each partial area, in the screen or each It is preferably at least one of the smallest frame data value in the partial area or the average value of the frame data values in the screen or in each partial area.

[0014]

In the ultrasonic diagnostic apparatus control method according to the first aspect and the ultrasonic diagnostic apparatus according to the third aspect, the representative value of the frame data is acquired, and the gain of the reception analog system circuit is obtained based on the representative value. Control. In this way
Since the frame data value of the image is monitored and fed back to the gain, the gain of the receiving analog system circuit is automatically maintained properly.

In the ultrasonic diagnostic apparatus control method according to the second aspect and the ultrasonic diagnostic apparatus according to the fifth aspect, the image is divided into two or more partial areas in the depth direction, and the frame corresponding to each partial area is divided. Obtain the representative value of the data. Then, based on each of the representative values, the TG of the receiving analog system circuit
Control C gain. In this way, since the frame data value of each partial region in the depth direction of the image is monitored and fed back to the corresponding TGC gain, the TGC gain of the receiving analog system circuit is automatically maintained properly.

In the ultrasonic diagnostic apparatus according to the fourth aspect, the image is divided into two or more partial areas, and the representative value of the frame data corresponding to each partial area is acquired. Then, the gain of the reception analog system circuit is controlled based on each of the representative values. In this way, the frame data value of each partial area of the image is monitored and fed back to the gain, so that the gain of the receiving analog system circuit is automatically maintained properly. Note that the gain to be controlled is the gain corresponding to each partial area (if there is a separate main amplifier for each partial area, the gain of each main amplifier. Multiple partial areas share one main amplifier in a time division manner. If so, the gain of the main amplifier in the period corresponding to each partial region) or the gain common to all partial regions.

In the ultrasonic diagnostic apparatus according to the sixth aspect, the image is divided into two or more partial areas, and the representative value of the frame data corresponding to each partial area is acquired. Then, each representative value is compared with a predetermined appropriate value to detect the suitability / non-suitability of the representative value for each partial area, and when the number of the partial areas in which the non-adequacy is detected is larger than a predetermined threshold value Change the gain. In this way, the frame data value of each partial area of the image is monitored and fed back to the gain, so that the gain of the receiving analog system circuit is automatically maintained properly. The gain controlled in this case is a gain common to all partial areas.

In the ultrasonic diagnostic apparatus according to the seventh aspect, the image is divided into two or more partial areas in the depth direction, and the representative value of the frame data corresponding to each partial area is acquired.
Then, each representative value is compared with a predetermined appropriate value to detect suitability / unsuitability of the representative value for each partial area, and the TGC gain corresponding to the partial area for which the inappropriate value is detected is changed. In this way, since the frame data value of each partial region in the depth direction of the image is monitored and fed back to the corresponding TGC gain, the TGC gain of the receiving analog system circuit is automatically maintained properly.

[0019]

The present invention will be described in more detail with reference to the embodiments shown in the drawings. The present invention is not limited to this.

First Embodiment FIG. 1 shows the ultrasonic diagnostic apparatus 1B of the first embodiment of the present invention.
It is a principal part block diagram which shows a mode receiving system. This ultrasonic diagnostic apparatus 1 receives an ultrasonic wave returned from a subject and outputs an ultrasonic echo signal, and an ultrasonic probe 2 that amplifies the ultrasonic echo signal and performs analog processing to generate a sound ray signal. A receiving analog system circuit 3 for outputting, a DSC 4 for generating frame data from the sound ray signal, a monitor 5 for displaying an image based on the frame data, and an operation for giving a control signal for controlling the receiving analog system circuit 3. A desk 6, an automatic gain controller 10 for automatically controlling the gain of the reception analog system circuit 3, a gain control signal from the console 6 and a gain control signal G from the auto gain controller 10 are supplied to the reception analog system circuit 3 And an OR circuit 20 for inputting to

The reception analog circuit 3 has a built-in main amplifier that amplifies the ultrasonic echo signal with an amplification degree that does not change with time and a TGC amplifier that amplifies the ultrasonic echo signal with an amplification degree that increases with time. There is.

The DSC 4 divides the image into partial areas B1 to B9 as shown in FIG. 3, acquires representative values b1 to b9 of the frame data corresponding to the partial areas B1 to B9,
It is given to the automatic gain controller 10. here,
The representative values b1 to b9 are, for example, the frame data value at a specific position defined in each partial area, the maximum frame data value in each partial area, the minimum frame data value in each partial area, or the frame of each partial area. For example, the average value of data values. Since frame data values are stored in the frame memory inside the DSC 4 in correspondence with the image area, it is easy to obtain these representative values b1 to b9.

The operation console 6 has a rotary volume 6a for gain adjustment, a slide volume 6b for TGC gain adjustment, a keyboard 6c for inputting various parameters, and an automatic gain controller 10 with proper values and threshold values. It is provided with a preset button 6d for setting. The operator can manually adjust the gain by operating the rotary volume 6a. Further, the TGC gain can be manually adjusted for each partial region in the depth direction by operating the slide volume 6b. Further, by operating the keyboard 6c and the preset button 6d, an appropriate value (upper limit appropriate value and lower limit appropriate value) and threshold values (excessive threshold value and excessively small threshold value) for each of the partial regions B1 to B9 are set in the auto gain controller 10. Can be set.

As shown in FIG. 2, the auto gain controller 10 comprises comparators 11 to 28 and a controller 29. The comparator 11 compares the representative value b1 with the b1 upper limit appropriate value, outputs “excessive” when the former exceeds the latter, and outputs “appropriate” when the former is less than the latter. The comparator 12 compares the representative value b1 with the b1 lower limit proper value, and outputs “undersized” when the former is below the latter and outputs “appropriate” when the former is equal to or larger than the latter. The same applies to other comparators.

The control unit 29 receives the proper value / threshold value data P from the console 6, and distributes the proper upper limit value of b1 to the proper lower limit value of b9 to each of the comparators 11 to 28. Then, the automatic gain control process of the flowchart of FIG. 4 is executed.
That is, in step S1, it waits for the frame data to be updated. In step S2, the number of partial areas in which "excess" is detected (the number of comparators outputting "excess")
To count. In step S3, it is determined whether or not the number of "excessive" is larger than the excessive threshold value, and if it is large, the process proceeds to step S4, and if not, the process proceeds to step S5. In step S4, the gain control signal G including a command to decrease the gain by one step is output. Then, the process returns to step S1.
In step S5, the number of partial areas in which "undersize" is detected (the number of comparators outputting "undersize") is counted. In step S6, it is determined whether or not the number of "undersized" is larger than the undersized threshold value. If it is larger, the process proceeds to step S7. In step S7, the gain control signal G including a command to increase the gain by one step is output. Then, the process returns to step S1.

As a result, the gain of the receiving analog system circuit 3 is automatically and properly maintained without frequent manual adjustment, so that a proper image can always be viewed. Further, it is possible to prevent the diagnosis time from being lengthened due to the manual adjustment.

-Second Embodiment- FIG. 5 is a main part configuration diagram showing a B-mode receiving system of an ultrasonic diagnostic apparatus 11 according to a second embodiment of the present invention. The ultrasonic diagnostic apparatus 11 receives an ultrasonic wave returned from a subject and outputs an ultrasonic echo signal, and an ultrasonic probe 2 that amplifies the ultrasonic echo signal and performs analog processing to generate a sound ray signal. A receiving analog system circuit 3 for outputting, a DSC 4 for generating frame data from the sound ray signal, a monitor 5 for displaying an image based on the frame data, and an operation for giving a control signal for controlling the receiving analog system circuit 3. The console 6, the automatic TGC gain controller 30 that automatically controls the TGC gain of the reception analog circuit 3, the TGC gain control signal from the console 6 and the TGC gain control signal g from the automatic TGC gain controller 30 are described above. An OR circuit 20 for inputting to the reception analog circuit 3 is provided.

The reception analog system circuit 3 includes a main amplifier for amplifying an ultrasonic echo signal with an amplification degree that does not change with time and a TGC amplifier for amplifying an ultrasonic echo signal with an amplification degree that increases with time. There is.

The DSC 4 divides the image into partial regions B1 to B4 in the depth direction as shown in FIG.
Representative values b1 to b4 of frame data corresponding to 1 to B4
Is obtained and given to the automatic TGC gain controller 30. Here, the representative values b1 to b4 are, for example, the frame data value at a specific position defined in each partial area, the maximum frame data value in each partial area, the minimum frame data value in each partial area, or each partial area. For example, the average value of the frame data value of the area. Since frame data values are stored in the frame memory inside the DSC 4 corresponding to the image area, it is easy to obtain these representative values b1 to b4. In addition, the partial region B1 in the depth direction
It is preferable to match B4 with the depth range shared by each lever of the slide volume 6b.

The operation console 6 sets a rotary volume 6a for gain adjustment, a slide volume 6b for TGC gain adjustment, a keyboard 6c for inputting various parameters, and an automatic TGC gain controller 30 with appropriate values. It is provided with a preset button 6d for performing. The operator can manually adjust the gain by operating the rotary volume 6a. Further, the TGC gain can be manually adjusted for each partial region in the depth direction by operating the slide volume 6b. Further, the keyboard 6c and the preset button 6d can be operated to set appropriate values (upper limit appropriate value and lower limit appropriate value) for each of the partial areas B1 to B4 in the automatic TGC gain controller 30.

As shown in FIG. 6, the automatic TGC gain controller 30 includes comparators 31 to 38 and a control unit 3.
And 9 are provided. The comparator 31 compares the representative value b1 with the b1 upper limit appropriate value, outputs “excessive” when the former exceeds the latter, and outputs “appropriate” when the former is less than the latter. The comparator 32 compares the representative value b1 with the b1 lower limit proper value, and when the former falls below the latter, “undersize”.
Is output, and "proper" is output when the former is higher than the latter.
The same applies to other comparators.

The control unit 39 receives the proper value data p from the console 6, and distributes the proper upper limit value of b1 to the proper lower limit value of b9 to the respective comparators 31 to 38. Then, the TGC gain automatic control process of the flowchart of FIG. 8 is executed.
That is, in step S11, it waits for the frame data to be updated. In step S12, steps S13 to S16 are repeated for the processing loop counters i = 1 to 4. In step S13, it is determined whether "excessive" is detected in the partial area Bi, and if it is detected, step S13 is performed.
If not detected, go to step S15.
In step S14, the TGC gain control signal g including the instruction to decrease the TGC gain corresponding to the partial region Bi by one step is output. Then, the process proceeds to step S17. In step S15, it is determined whether "undersize" is detected in the partial area Bi. If it is detected, the process proceeds to step S16, and if it is not detected, the process proceeds to step S17. Step S16
Then, the TGC gain control signal g including the instruction to increase the TGC gain corresponding to the partial region Bi by one step is output. Then, the process proceeds to step S17. In step S17, for i = 1 to 4, the process returns to step S13,
When i = 1 to 4 cycles, the process returns to step S11.

As a result of the above, the TGC gain of the receiving analog system circuit 3 is automatically maintained properly without frequent manual adjustment, so that a proper image can be always viewed. Further, it is possible to prevent the diagnosis time from being lengthened due to the manual adjustment. The first embodiment and the second embodiment can be carried out at the same time.

[0034]

According to the control method of the ultrasonic diagnostic apparatus and the ultrasonic diagnostic apparatus of the present invention, the gain of the receiving analog system circuit or the TGC gain is automatically and properly maintained, so that frequent manual adjustment is not required. But you will always be able to see the correct image. Therefore, it is possible to prevent the diagnosis time from being lengthened due to the manual adjustment.

[Brief description of drawings]

FIG. 1 is a main part configuration diagram showing a B-mode reception system of an ultrasonic diagnostic apparatus according to a first embodiment of the present invention.

FIG. 2 is a detailed block diagram of an auto gain controller in the ultrasonic diagnostic apparatus of FIG.

FIG. 3 is an explanatory diagram of a state in which an image is divided into partial areas.

FIG. 4 is a flowchart of a gain automatic control process.

FIG. 5 is a main part configuration diagram showing a B-mode reception system of the ultrasonic diagnostic apparatus according to the second embodiment of the present invention.

6 is a detailed block diagram of an automatic TGC gain controller in the ultrasonic diagnostic apparatus of FIG.

FIG. 7 is an explanatory diagram of a state in which an image is divided into partial areas in the depth direction.

FIG. 8 is a flowchart of TGC gain automatic control processing.

FIG. 9 is a main part configuration diagram showing a B-mode reception system of an example of a conventional ultrasonic diagnostic apparatus.

[Explanation of symbols]

 1, 11 Ultrasonic Diagnostic Device 2 Ultrasonic Probe 3 Receiving Analog System Circuit 4 DSC 5 Monitor 6 Operator Table 10 Auto Gain Controller 11-28 Comparator 20 Logical OR Circuit 29 Control Section 30 Auto TGC Gain Controller 31-38 Comparison Vessel 39 control unit B1 to B9 partial area b1 to b9 representative value

Claims (8)

[Claims] 1. An ultrasonic probe which receives ultrasonic waves and outputs ultrasonic echo signals, a reception analog system circuit which amplifies the ultrasonic echo signals and performs analog processing to output sound ray signals, and the sound. In an ultrasonic diagnostic apparatus including a frame data generation unit that generates frame data from a line signal and an image display unit that displays an image based on the frame data, a representative value of the frame data is acquired, and the representative value is acquired. A method for controlling an ultrasonic diagnostic apparatus, comprising: controlling the gain of a reception analog circuit based on the above. 2. An ultrasonic probe that receives ultrasonic waves and outputs ultrasonic echo signals, a reception analog system circuit that amplifies the ultrasonic echo signals and performs analog processing, and outputs sound ray signals, and the sound. In an ultrasonic diagnostic apparatus including frame data generation means for generating frame data from a line signal and image display means for displaying an image based on the frame data, the image is divided into two or more partial areas in the depth direction. Then, the representative value of the frame data corresponding to each partial area is acquired, and the TGC gain of the reception analog system circuit corresponding to each partial area is controlled based on each representative value. Method. 3. An ultrasonic probe which receives ultrasonic waves and outputs ultrasonic echo signals, a reception analog system circuit which amplifies the ultrasonic echo signals and performs analog processing to output sound ray signals, and the sound. In an ultrasonic diagnostic apparatus including a frame data generation unit that generates frame data from a line signal and an image display unit that displays an image based on the frame data, a representative value acquisition unit that acquires a representative value of the frame data. An ultrasonic diagnostic apparatus comprising: and a control signal output means for outputting a control signal for changing the gain of the reception analog system circuit based on the representative value. 4. An ultrasonic probe which receives ultrasonic waves and outputs ultrasonic echo signals, a reception analog system circuit which amplifies the ultrasonic echo signals and performs analog processing to output sound ray signals, and the sound. In an ultrasonic diagnostic apparatus including frame data generation means for generating frame data from a line signal and image display means for displaying an image based on the frame data, the image is divided into two or more partial areas and each partial area is divided. Representative value acquisition means for acquiring a representative value of the frame data corresponding to,
An ultrasonic diagnostic apparatus comprising: a control signal output unit that outputs a control signal for changing a gain of a reception analog system circuit corresponding to each partial area based on each representative value. 5. An ultrasonic probe that receives ultrasonic waves and outputs ultrasonic echo signals, a reception analog system circuit that amplifies the ultrasonic echo signals, performs analog processing, and outputs sound ray signals, and the sound. In an ultrasonic diagnostic apparatus including frame data generation means for generating frame data from a line signal and image display means for displaying an image based on the frame data, the image is divided into two or more partial areas in the depth direction. A representative value acquisition means for acquiring a representative value of frame data corresponding to each partial area, and a control signal for outputting a control signal for changing the TGC gain of the reception analog system circuit corresponding to each partial area based on each representative value An ultrasonic diagnostic apparatus comprising: an output unit. 6. An ultrasonic probe which receives ultrasonic waves and outputs ultrasonic echo signals, a reception analog system circuit which amplifies the ultrasonic echo signals and performs analog processing to output sound ray signals, and the sound. In an ultrasonic diagnostic apparatus including frame data generation means for generating frame data from a line signal and image display means for displaying an image based on the frame data, the image is divided into two or more partial areas and each partial area is divided. Representative value acquisition means for acquiring a representative value of the frame data corresponding to,
Comparing means for comparing each representative value with a predetermined appropriate value to detect the suitability or unsuitability of the representative value for each partial area, and counting the number of partial areas that have detected the unsuitable value and exceeding a predetermined threshold value. An ultrasonic diagnostic apparatus comprising: a control signal output unit that outputs a control signal for changing a gain of a reception analog system circuit. 7. An ultrasonic probe for receiving an ultrasonic wave and outputting an ultrasonic echo signal, a reception analog system circuit for amplifying the ultrasonic echo signal and analog-processing it to output a sound ray signal, and the sound. In an ultrasonic diagnostic apparatus including frame data generation means for generating frame data from a line signal and image display means for displaying an image based on the frame data, the image is divided into two or more partial areas in the depth direction. A representative value acquisition means for acquiring the representative value of the frame data corresponding to each partial area, and a comparison means for comparing the representative value with a predetermined appropriate value to detect the suitability or unsuitability of the representative value for each partial area. And an ultrasonic diagnostic apparatus, comprising: a control signal output means for outputting a control signal for changing the TGC gain of the reception analog system circuit corresponding to the partial area in which the inadequacy is detected. 8. The ultrasonic diagnostic apparatus according to claim 3, wherein the representative value of the frame data is a frame data value at a specific position defined in the screen or in each partial area, and the screen. At least one of the maximum frame data value in the middle or each partial area, the minimum frame data value in the screen or each partial area, or the average of the frame data values in the screen or each partial area. Characteristic ultrasonic diagnostic equipment.