JP2000135216A - Ultrasonograph and ultrasonic diagnosis report forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonograph, and an ultrasonic diagnosis report forming method capable of simultaneously displaying and printing an ultrasonic image and other information. SOLUTION: In this ultrasonograph, a recording means to record layout setting information to dispose various information at specified positions and in specified sizes to be displayed and printed, an information processing means 3 to form a group of diagnosis report information comprising ultrasonic image information, other information, and above layout setting information related to each other, or form integrated diagnosis report information comprising the group of the diagnosis report information further processed and integrated, and a display means 6 and a printing means 7 to display and print the ultrasonic image information and other information in accordance with the layout setting information based on the information from the information processing means are provided, thereby the ultrasonic image diagnosis device capable of forming an ultrasonic diagnosis report including ultrasonic image information and other information to be displayed and printed, and an ultrasonic diagnosis report forming method used in the device are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic image diagnostic apparatus for displaying an ultrasonic image of a subject on a monitor and diagnosing the ultrasonic image, and an ultrasonic diagnostic report creating method used for such an apparatus.

[0002]

2. Description of the Related Art Conventionally, when making a diagnosis using an ultrasonic image diagnostic apparatus, a doctor obtains desired ultrasonic image information from a patient, and then obtains the obtained image information and calculates it based on the image information. It is common to create a diagnostic report that records the secondary information that is obtained and the diagnostic results. The secondary information obtained by calculation based on the image information is, for example, a calculation value that is calculated from the image information and that indicates a size or an operation state of the organ to be inspected, and uses a report function included in the ultrasound image diagnostic apparatus. Can be obtained.

[0003] The report function provided in the ultrasonic diagnostic imaging apparatus is to use the collected image information and the information input by the doctor in accordance with a fixed layout set at the time of manufacturing the apparatus, the secondary information, various patient information and diagnostic information. This is a function to display and print a report in which character information such as a result is recorded, and a function to assist a doctor in making a diagnosis and creating a diagnosis report. In this specification, "report"
The term "diagnosis report" means a report that records only character information including numeric information, and the term "diagnosis report" means a report that records image information in addition to character information.

If a report function is used, a doctor makes a diagnosis based on an ultrasonic image displayed on a monitor of the apparatus, prints the image, prepares and prints a report, and attaches the image to the obtained report. As a result, a diagnostic report can be easily created.

[0005]

However, the report function provided in the conventional ultrasonic image diagnostic apparatus includes ultrasonic image information and character information such as secondary information and patient information necessary for diagnosis in addition to the ultrasonic image information. The function of simultaneously displaying and printing a report that has been recorded, that is, the function of displaying and printing a diagnostic report, has not been realized. Therefore, in order to make a diagnosis using secondary information, it is necessary to first use ultrasonic image information or It was necessary to print one of the reports that recorded the character information and then display or print the other. In addition, to create a final diagnostic report, it was necessary to bond the image information and the report that were separately printed.

Further, in the conventional ultrasonic image diagnostic apparatus,
Because the layout of the report is fixed to the layout set at the time of manufacturing the device, creating a report that records only the necessary character information at each time or creating a report that matches the document format of each hospital or clinic, etc. It was impossible for a doctor (user) to arbitrarily set and change the report layout.

Further, the conventional ultrasonic image diagnostic apparatus has a storage device for electronically storing information such as ultrasonic image information collected at the time of examination / diagnosis, secondary information and patient information obtained based thereon. In order to reuse collected information, it is necessary to save printed information or to establish a network with a system equipped with a storage device that stores information electronically. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and simultaneously displays and prints ultrasonic image information and a report, arbitrarily sets a report layout, and stores a diagnostic report electronically. It is an object of the present invention to provide an ultrasonic diagnostic imaging apparatus and an ultrasonic diagnostic report creating method capable of performing the above.

[0009]

In order to solve the above-mentioned problems, an ultrasonic diagnostic imaging apparatus according to the present invention comprises: input means for inputting character information, setting information and a command from an operator; Image information obtaining means for obtaining, information processing means for calculating secondary information obtained by calculation from the ultrasonic image information and processing all information, and recording means for recording information processed by the information processing means And an output control means for controlling output from the image acquisition means or the recording means, and an ultrasonic diagnostic imaging apparatus comprising a display means and a printing means for displaying and printing information from the output control means, Layout setting information for displaying and printing each information at a predetermined position and size is recorded in the recording means, and the information processing means Create a diagnostic report information group in which the ultrasound image information, the secondary information, and the character information are associated with the layout setting information, or create an integrated diagnostic report information in which the diagnostic report information group is integrated. It is characterized by doing. The ultrasonic diagnostic imaging apparatus of the present invention, by adopting such a configuration, can electronically store various types of information in association with each other or integrated without using a separate apparatus, and furthermore, a patient It is possible to simultaneously display past information or a reference image of the subject and an image currently under diagnosis or a report including the image, and provide a more advantageous support function than before.

Preferably, according to claim 1, the display means or the printing means sets the ultrasonic image information, the secondary information, and the character information in the layout setting according to the diagnostic report information group or the integrated diagnostic report information. It is characterized by being displayed or printed based on information. With such a configuration, it is possible to simultaneously display and print the collected image and report.

Preferably, in the first and second aspects, the layout setting information can be arbitrarily changed by inputting new layout setting information from the input means, and the new layout setting information can be changed. It is characterized in that it can be additionally registered in the recording means. With this configuration, the operator sets the report layout
It can be changed.

Preferably, the recording means records the diagnostic report information group or the integrated diagnostic report information.
With such a configuration, without using a separate device,
Various types of information are correlated and integrated and stored electronically, and furthermore, using the electronically stored information,
It is possible to simultaneously display the patient's past information or reference image and the image currently under diagnosis or a report including the image.

[0013] In order to solve the above-mentioned problems, a diagnostic report creation method according to the present invention is directed to a method for creating a diagnostic report in which diagnostic information is recorded using an ultrasonic diagnostic imaging apparatus. An information collecting step of collecting and temporarily recording image information, an image selecting step of selecting diagnostic ultrasonic image information used for diagnosis from a plurality of ultrasonic image information collected in the information collecting step, and the image selecting step. Calculating secondary information necessary for diagnosis other than ultrasonic image information based on the selected ultrasonic image information for diagnosis;
The next information calculation step, the patient information, the plurality of ultrasonic image information and the storage information selection step of selecting storage information to be recorded and stored from the secondary information, the storage information selected in the storage information selection step It is characterized by including a recording information storing step of storing as recording information by recording. By adopting such a configuration, the diagnostic report creation method of the present invention allows various information to be stored in an electronic manner in association with each other or integrated without using a separate device, and furthermore, for a patient. It is possible to simultaneously display the past information or the reference image and the image currently under diagnosis or the report including the image, thereby providing a more advantageous support function than before.

Preferably, in claim 5, a diagnostic report layout setting step of arbitrarily setting a layout of a diagnostic report including the patient information, the diagnostic ultrasound image information and the secondary information, and the diagnostic report layout setting A diagnostic report layout registering step of registering and saving the layout set in the step. With such a configuration, the operator can set and change the layout of the report.

Preferably, in the fifth or sixth aspect, the recording information reference step for referring to the recording information already stored during the creation of the diagnosis report, wherein the referred recording information is the current diagnosis report creation step. A candidate determining step of determining whether the information is past information or other recording information of a patient in which to determine candidate recording information, and information referred to from recording information candidates listed according to the determination in the candidate determining step. And a recorded information reference step including a display information displaying step of displaying the display information selected in the display information selecting step. By adopting such a configuration, various information can be correlated and integrated and electronically stored without using a separate device, and the past information and reference images of the patient and the current image can be used. It is possible to simultaneously display the image under diagnosis or a report including the image.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of an ultrasonic diagnostic imaging apparatus according to the present invention.

Referring to FIG. 1, an ultrasonic diagnostic imaging apparatus according to the present invention comprises an input unit 1 for inputting text information, setting information and a command from an operator, and an image information obtaining unit 2 for obtaining ultrasonic image information. Information processing means 3 for calculating secondary information obtained by calculation from the ultrasonic image information and processing all information; recording means 4 for recording information processed by the information processing means 3; It comprises an output control means 5 for controlling the output from the image information acquisition means 1 and the recording means 4, and a display means 6 and a printing means 7 for displaying and printing information from the output control means 5.

The input means 1 is a means for receiving information from the outside, and includes a keyboard, a pen tablet, a mouse,
It generally comprises one or more input devices 24, such as a trackball or a touch panel. Input device 2
Reference numeral 4 denotes an instruction or an operation from an operator for controlling various devices, such as start / end of acquisition of ultrasonic image information by the ultrasonic image acquisition unit 2 and switching of a display mode of the display unit 6. Various kinds of information from the user, for example, patient information, diagnosis results and various kinds of setting information are received and transmitted to the control means 3.

The image acquiring means 2 is a means for acquiring ultrasonic image information from a patient (subject), and includes an ultrasonic probe 11,
It comprises a transmitting / receiving circuit 12 and a DSC (Digital Scan Converter) circuit 13. The ultrasonic probe 11 is driven by the transmission / reception circuit 12 to transmit an ultrasonic wave to a patient, receives an ultrasonic echo returned from the patient, and transmits the ultrasonic echo to the transmission / reception circuit 12. The transmission / reception circuit 12 receives an echo obtained based on the ultrasonic wave transmitted from the ultrasonic probe 11, detects a Doppler shift signal and the like, converts it into an electric signal, and converts the obtained reception information into a DSC circuit. 13 is transmitted. The DSC circuit 13 performs hardware processing such as zooming on the received data, transmits the obtained image information to the information processing means 3, processes the image information, converts the image information into an image signal for output, and outputs the image signal. It is transmitted to the control means 5.

The information processing means 3 is a means for processing various information obtained and collected, performing calculations necessary for diagnosis and controlling the entire apparatus, and includes an image processing circuit 14 and a control circuit 15 having a storage medium 16. It is roughly composed of The image processing circuit 14 receives the image information from the DSC circuit 13 and performs various calculations based on the image information to calculate secondary information such as the size and operation state of the organ to be examined, and then, Are displayed and printed by arranging the image information, character information such as patient information and diagnosis results input to the input means 1 and transmitted from the control circuit 15 at predetermined positions and sizes. For this purpose, a diagnostic report information group in which the layout setting information registered in advance in the recording means 4 is mutually associated is created, or an integrated diagnostic report information in which the diagnostic report information group is integrated is created. An information group or information is transmitted to the recording means 4. The control circuit 15 is a circuit for controlling the entire apparatus, and includes a ROM (Read Only Memory) storing various programs necessary for operation and control of the apparatus and a RAM (Random Access Memory) as necessary.
A storage medium 16 comprising a memory (memory) and a CPU (central processing unit) 17 for executing the program.
In addition, the CPU 17 immediately or temporarily waits in the control circuit 15 for an instruction and information from the operator input through the input device 24, and sends the instruction and information to the image processing circuit 14 and other device components at an appropriate timing. Send.

The recording means 4 is a means for temporarily or long-term recording various information processed by the image processing circuit 14, and includes a memory 18 composed of a RAM and a recording device 19 composed of a hard disk or a magneto-optical disk. It is schematically configured. Generally, information to be temporarily recorded is stored in the memory 18.
The information to be recorded for a long time is recorded in the recording device 19, but the information to be temporarily recorded can be temporarily recorded in the recording device 19 when the capacity of the memory 18 is insufficient, for example. In the apparatus of the present invention, the recording device 19
1 that is preset or additionally registered by the operator
One or more diagnostic report layout setting information is recorded and registered in the layout setting database.
Further, the recording device 19 can record a program necessary for operation and control of the device. The information recorded in the recording means 4 is read out by the output control means 5 as needed.

The output control means 5 is a means for processing information and a group of information collected and / or processed by the apparatus in accordance with each output means such as the display means 6 and the printing means 7 and for controlling the output timing. , A recording information output circuit 20 and an output switching circuit 21. The recording information output circuit 20 outputs image information, the diagnostic report information group, the integrated diagnostic report information, and / or other information from the memory 18 or the recording device 19 of the recording unit 4 in response to a command from the control circuit 15. The information is read, converted into an information signal for output, and transmitted to the output switching circuit 21. The output switching circuit 21 receives various signals for output from the DSC circuit 13 and the recording information output circuit 20, and outputs information in accordance with the layout setting information included in the received signal and other instructions from the operator, for example, The output means of the information output destination is set to output to the display means 6 or the like. The setting of the output form of the information can be performed by a method such as performing a specific operation with the input device 24. For example, if the output form of the information is displayed on the display unit 6, Various display modes, such as image information only, a diagnostic report thereof, a report only, and simultaneous display of the diagnostic report and any recorded information, can be switched and set. And an output switching circuit 2
1 is to process the received output signal appropriately according to the set output means, for example, when the output means is the printing means 6, translate it into a printing language suitable for the printing means to be used, and then display 6 or to the printing means 7.

The display means 6 and the printing means 7 are means for interpreting and displaying and printing an output signal from the output switching circuit 21 of the output control means 5.
The printing means 7 is roughly comprised of a printer 23 such as an ink jet printer or a page printer. The monitor 22 and the printer 23 display and print image information and other information simultaneously or separately according to the received output signal.

As described above, the ultrasonic diagnostic imaging apparatus according to the present invention comprises: a recording unit 4 for recording layout setting information for displaying and printing each information at a predetermined position and size; Information processing means 3 for creating a diagnostic report information group in which information, secondary information, and other information and the layout setting information are mutually associated, or creating integrated diagnostic report information in which the diagnostic report information group is integrated The diagnostic report information group or the integrated diagnostic report information can be recorded in the recording means 4 so that the operator can set and change the report layout without using a separate device, and collect the report. Displaying and printing the image information and the report at the same time,
And various information can be electronically stored as a diagnostic report information group or diagnostic report information correlated or integrated. In addition, since the information collected in the device is stored electronically, multiple images and other information can be viewed simultaneously, for example, by displaying the patient's past information or reference image information and the currently diagnosed image information or diagnosis report simultaneously. This is cheaper and easier than before, and can provide a more advantageous support function than before.

Next, an ultrasonic diagnostic report creation method according to the present invention will be described.

According to the method of the present invention, using the ultrasonic diagnostic imaging apparatus of the present invention, an operator can freely set the layout of a report to display, print, and record a report including an image, that is, a diagnostic report. / Can be saved. FIG. 2 shows an example of the layout of the diagnostic report.
In this example, an ultrasound image is arranged at the upper left of the report, patient information is arranged at the upper right, and various secondary information indicating, for example, the size of the organ to be examined is arranged at the bottom. Such a layout setting is performed according to the procedure shown in FIG.

First, in step S301, the input device 2
4 performs a specific operation to activate the report layout registration program stored / recorded in the storage medium 16 or the recording device 19, and proceeds to step S302.

In step S302, the layout is set in accordance with the input request shown on the screen of the monitor 9, information to be described in the report is specified, and when all the inputs have been completed, the flow proceeds to step S303.

In step S303, step S302
Are recorded in the recording device 19 and registered in the layout setting information database, and the report layout registration program ends.

Output of information according to the set report layout is performed as follows. Here, a case where the output destination is the monitor 22 will be described with reference to FIG.

First, in step S401, image information and patient information are collected and temporarily recorded in the memory 18, and then the process proceeds to step S402.

In step S402, step S401
A selection request of image information to be used for calculating secondary information from the image information collected in the step is displayed on the monitor 22 and waits for an input from the operator, and a selection command from the operator is input within a predetermined time. In this case, any image information is selected from the image information recorded in the memory 18 in accordance with the command, or displayed on the monitor 22 at that time if no selection command is input within a predetermined time. After selecting an existing image, the process proceeds to step S403.

In step S403, step S402
After calculating the secondary information specified in the report layout by executing the calculation in the image processing circuit 14 on the basis of the image information selected in step S404, the process proceeds to step S404.

In step S404, step S403
Is displayed on the screen, and the operator is inquired whether or not desired secondary information is obtained.
If the next information has been obtained, the process proceeds to step S405. If the desired secondary information has not been obtained, the process returns to step S402.

In step S405, for example, step 4
02, the diagnostic report including the image information and the secondary information selected in 02, or only the image information, etc.
Select the information to be recorded and stored in 9 and wait until the information storage command is input. After the input of the information storage command is confirmed,
Proceed to step 406.

In step S406, step S405
The operator inquires whether the information selected to be saved in step S407 is new information to be newly saved or correction information of existing information already recorded in the recording device 19. If the information is new information, the process proceeds to step S407. The process proceeds to step S408 if it is correction information.

In step S407, step S405
After newly recording the new information selected in and storing it in the recording device 19, the process proceeds to step S409.

In step S408, step S405
Requests the operator to input information necessary for correcting the existing information with the correction information selected in step 2, and overwrites the existing information recorded in the recording device 19 with the correction information based on the input information from the operator to correct the information. After that, the process proceeds to step S409.

In step S409, an inquiry is made to the operator as to whether or not to continue the information storage operation. If the operation is to be continued, the process returns to step S405, and if not, the process ends and waits.

According to the present invention, the past image information and other information are stored in the recording device 1 in the ultrasonic diagnostic imaging apparatus.
9, the image information under diagnosis, the secondary information from the image information, and the past information of the patient currently under diagnosis are simultaneously displayed on the display screen of the monitor 22, as shown in FIG. Existing information can be used, for example, to assist diagnosis. In this case, the display screen may be divided and displayed, or may be displayed as one screen without being divided.
Furthermore, the information called from the recording device 19 for simultaneous display and reference to the image information during diagnosis and the like is not limited to the past information of the patient, but may be, for example, reference case image information referred to as a suspicious case at the time of diagnosis. Recording device 1
9 may be arbitrary information recorded and stored.

As described above, the method for calling the information to be displayed simultaneously with the image information under diagnosis from the recording device 19 is not limited to this. For example, a recording information reading subroutine having the procedure shown in FIG. A method provided between step S404 and step S405 can be given.

The recording information reading subroutine is started by activating a recording information reading program in step S601. After starting the program, the process proceeds to step S602.

In step S602, an inquiry is made to the operator as to whether the information read and displayed on the monitor 22 is information relating to the patient under diagnosis or other information.
The process proceeds to step S604 if it is other information.

In step S603, it is determined whether or not information on the patient under diagnosis is recorded in the recording device 19 based on the input patient information, for example, the patient's ID number, and it is determined that the information is recorded. In this case, a list of recorded information is displayed on the monitor 22 to prompt the operator to input a selection command, and after confirming the selection command input, the process proceeds to step S605. Displays a message to that effect on the monitor 22 and returns to step S602.

In step S604, a list of information to be displayed is displayed on the monitor 22 according to a common procedure such as a keyword search, for example, to prompt the operator to select information to be read, and after confirming the selection command input, the flow proceeds to step S605.

In step S605, an inquiry is made to the operator as to whether the selected information is to be displayed by dividing the screen of the monitor 22 and displaying the information being displayed or as one screen without dividing the screen. The information read from the recording device 19 is displayed on the monitor 22 in accordance with an instruction from the operator, and this subroutine ends.

As described above, the ultrasonic diagnostic imaging apparatus according to the present invention enables the reuse of image information by itself without building a network with another apparatus or system. If necessary, a network may be constructed with a plurality of ultrasonic diagnostic imaging apparatuses of the present invention and / or other systems.

[0049]

As described above, according to the ultrasonic diagnostic imaging apparatus of the present invention, there are provided recording means for recording layout setting information for displaying and printing each information at a predetermined position and size, and Information processing means for creating a diagnostic report information group in which image information, secondary information and other information and the layout setting information are mutually associated, or creating integrated diagnostic report information integrating the diagnostic report information group Since the diagnostic report information group or the integrated diagnostic report information can be recorded in the recording means, the operator can set and change the report layout without using a separate device, and collect the report. Displaying and printing image information and reports simultaneously, and associating or integrating various information with diagnostic report information groups or It is possible to store the information electronically as diagnostic report information, and also to store the information collected in the device electronically, for example, the past information and reference image information of the patient and the image information or diagnostic report currently being diagnosed. It is cheaper and easier to view a plurality of images and other information at the same time, such as displaying them at the same time, and it is possible to provide a more advantageous support function than before.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of one embodiment of an ultrasonic diagnostic imaging apparatus according to the present invention.

FIG. 2 is a diagram schematically illustrating an example of a layout of a diagnostic report according to one embodiment of the present invention.

FIG. 3 is a schematic flowchart showing a report layout setting / registration procedure according to an embodiment of an ultrasonic diagnostic report creation method of the present invention.

FIG. 4 is a schematic flowchart showing a report creation procedure according to an embodiment of the ultrasound diagnostic report creation method of the present invention.

FIG. 5 is a diagram schematically showing an example of a monitor display according to an embodiment of the present invention.

FIG. 6 is a schematic flowchart showing an example of a recording information reading procedure according to an embodiment of the ultrasonic diagnostic report creation method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input means 2 Image information acquisition means 3 Information processing means 4 Recording means 5 Output control means 6 Display means 7 Printing means 11 Ultrasonic probe 12 Transmitting and receiving circuit 13 DSC circuit 14 Image processing circuit 15 Control circuit 16 Storage medium 17 CPU Reference Signs List 18 memory 19 recording device 20 recording information output circuit 21 output switching circuit 22 monitor 23 printer 24 input device

Continued on the front page F term (reference) 4C301 EE13 EE17 JB21 JC16 KK26 KK31 KK33 KK40 LL14 LL20 5B057 AA07 BA05 BA23 CE08 5C054 AA01 CA08 GA01 GA04 GB01 HA12

Claims (7)

[Claims] An input unit for inputting character information, setting information and an instruction from an operator; an image information obtaining unit for obtaining ultrasonic image information; and a secondary information obtained by calculation from the ultrasonic image information. Information processing means for calculating and processing all information; recording means for recording information processed by the information processing means; output control means for controlling output from the image acquisition means or the recording means; An ultrasonic diagnostic imaging apparatus comprising a display unit and a printing unit for displaying and printing information from an output control unit, wherein the recording unit arranges and displays each information at a predetermined position and size. Layout setting information for recording the ultrasound image information, the secondary information, the character information, and the layout setting information. Ultrasound imaging apparatus characterized by creating an integrated diagnostic report information and with an integrated or the diagnostic report information group to create a diagnostic report information group correlated with distribution. 2. The method according to claim 1, wherein the display unit or the printing unit displays the ultrasonic image information, the secondary information, and the character information based on the layout setting information according to the diagnostic report information group or the integrated diagnostic report information. The ultrasonic diagnostic imaging apparatus according to claim 1, wherein printing is performed. 3. The layout setting information can be arbitrarily changed by inputting new layout setting information from the input unit, and the new layout setting information can be additionally registered in the recording unit. The ultrasonic diagnostic imaging apparatus according to claim 1 or 2, wherein 4. The ultrasonic diagnostic imaging apparatus according to claim 1, wherein said recording means records said diagnostic report information group or said integrated diagnostic report information. 5. A method for creating a diagnostic report in which diagnostic information is recorded using an ultrasonic diagnostic imaging apparatus, comprising: collecting patient information and a plurality of ultrasonic image information and temporarily recording the information; An image selecting step of selecting diagnostic ultrasonic image information to be used for diagnosis from a plurality of ultrasonic image information collected in the collecting step, other than ultrasonic image information based on the diagnostic ultrasonic image information selected in the image selecting step A secondary information calculating step of calculating secondary information necessary for diagnosis, the patient information, the plurality of ultrasonic image information, and the second information
A storage information selection step of selecting storage information to be recorded and stored from the next information; and How to create a diagnostic report. 6. A diagnostic report layout setting step of arbitrarily setting a layout of a diagnostic report including the patient information, the diagnostic ultrasound image information and the secondary information, and a layout set in the diagnostic report layout setting step The diagnostic report creation method according to claim 5, further comprising: a diagnostic report layout registering step of registering and storing the diagnostic report. 7. A record information referencing step for referring to the record information already stored during the creation of a diagnostic report, wherein the record information to be referred to is past information of a patient who is currently creating a diagnostic report. A candidate determining step of selecting whether the recording information is other than the recording information to determine candidate recording information, a display information selecting step of selecting information to be referred to from recording information candidates listed according to the determination in the candidate determining step, and 7. The diagnostic report creation method according to claim 5, further comprising a record information reference step including a display information display step of displaying the display information selected in the display information selection step.