JP7291566B2 - Electrocardiography device and method of operating electrocardiography device - Google Patents

Description

The present invention relates to electrocardiography devices and methods of operating electrocardiography devices.

Conventionally, an electrocardiogram has been widely used as a diagnostic index for heart disease. An electrocardiogram is obtained by detecting the electrical activity of the heart on the body surface and representing it as an electrocardiographic waveform. By analyzing this electrocardiographic waveform (electrocardiogram), it is possible to obtain a variety of information about heart activity.

In recent years, the development of digital electrocardiograms that record electrocardiograms as data has made it possible to automatically analyze electrocardiograms using a computer, and various parameters obtained from electrocardiograms have been studied (e.g., patent literature 1).

Japanese Patent Application Laid-Open No. 2006-116207

By the way, in an electrocardiograph having an electrocardiogram automatic analysis function, a user, who is a medical professional, selects a range to be automatically analyzed (hereinafter referred to as an analysis range). The selection of the analysis range is performed by the user while viewing the display screen of the electrocardiographic waveform.

However, the analysis range selected by the user is not necessarily an appropriate range. When the user sees the analysis results and recognizes that the analysis range he has selected is not an appropriate section, he selects another analysis range while looking at the electrocardiographic waveform display screen again, and requests the electrocardiograph to perform analysis processing again. have to run. As a result, there is a possibility that the time required from the selection of the electrocardiographic waveform to the end of the analysis will be long.

The present invention has been made in consideration of the above points, and provides an electrocardiogram examination apparatus and an electrocardiogram examination apparatus operation method that can shorten the time required from the selection of an analysis range to the end of analysis.

One aspect of the electrocardiogram examination apparatus of the present invention is
a display unit;
an operation unit that receives user operations;
an analysis range setting unit capable of setting a plurality of analysis ranges in one screen according to a user's operation on the operation unit with respect to the electrocardiographic waveform displayed on the display unit;
an analysis unit that performs analysis processing for each of the plurality of analysis ranges set by the analysis range setting unit;
Prepare.

One aspect of the method for operating the electrocardiography apparatus of the present invention comprises:
a step of displaying an electrocardiographic waveform for one lead out of the 12-lead electrocardiographic waveform;
a step of setting a plurality of analysis ranges in one screen from among the displayed one-lead electrocardiographic waveform in accordance with a user's operation;
a step of performing analysis processing for each of the plurality of set analysis ranges;
including.

According to the present invention, it is possible to set a plurality of analysis ranges and perform analysis processing for each of the plurality of analysis ranges, thereby shortening the time required from selection of an electrocardiogram waveform to completion of analysis.

FIG. 1 is a block diagram showing the essential configuration of an electrocardiogram examination apparatus according to an embodiment; Flowchart for explaining the operation of the electrocardiogram examination apparatus according to the embodiment A diagram showing an example of a 12-lead inspection screen A diagram showing an example of a 12ch freeze screen A diagram showing an example of a 6ch freeze screen A diagram showing an example of a 1ch freeze screen FIG. 10 is a diagram showing an example of an analysis range selection screen according to the embodiment; A diagram showing an example of an analysis result image based on an inappropriate analysis range A diagram showing an example of an analysis result image based on an appropriate analysis range

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the essential configuration of an electrocardiogram examination apparatus according to an embodiment.

The electrocardiogram examination apparatus 10 has a display unit 11 , an operation unit 12 , an analysis range setting unit 13 , an analysis unit 14 and a display control unit 15 .

The display unit 11 is, for example, a liquid crystal display. The operation unit 12 includes, for example, a keyboard and a mouse, and receives user operations. The operation unit 12 also includes a touch panel when the display unit 11 is a liquid crystal display with a touch panel. The analysis range setting unit 13, the analysis unit 14, and the display control unit 15 are configured by a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), etc., and execute a predetermined program. to implement each function.

The analysis range setting unit 13 can set a plurality of analysis ranges according to user operations on the operation unit 12 . Specifically, the user selects an analysis range using the operation unit 12 while viewing the electrocardiographic waveform displayed on the display unit 11 .

The analysis unit 14 performs analysis processing for each of the plurality of analysis ranges set by the analysis range setting unit 13 . Since the analysis of each test such as the 12-lead test and the arrhythmia test by the analysis unit 14 is a known technology, detailed description thereof will be omitted here. Analysis results obtained by the analysis unit 14 are displayed on the display unit 11 via the display control unit 15 .

The display control unit 15 selectively displays one or more analysis results from the analysis results for the plurality of analysis ranges obtained by the analysis unit 14 . For example, the display control unit 15 displays a plurality of analysis results one by one on the display unit 11 according to the user's operation of the operation unit 12 (for example, each time the user clicks the mouse).

FIG. 2 is a flowchart for explaining the operation of the electrocardiogram examination apparatus 10 of this embodiment. 3 to 9 are diagrams showing examples of images displayed on the electrocardiogram examination apparatus 10. FIG.

The electrocardiogram examination apparatus 10 displays a 12-lead examination screen on the display unit 11 in step S11. FIG. 3 is an example of a 12-lead inspection screen displayed in step S11.

When the user operates the freeze button B1 in FIG. 3 using the operation unit 12 (for example, moves the cursor to the freeze button B1 with the mouse and clicks at that position), the electrocardiogram examination apparatus 10 proceeds to step S12, and the display unit 11 displays the freeze screen. 4 to 6 are examples of freeze screens displayed in step S12.

Incidentally, in the electrocardiogram examination apparatus 10, it is possible to select how many channels (ch) of waveforms are to be displayed on the freeze screen. 4 is an example of a 12ch freeze screen, FIG. 5 is an example of a 6ch freeze screen, and FIG. 6 is an example of a 1ch freeze screen.

Here, in the freeze screen, the number of seconds that can be displayed on one screen is shorter than, for example, a maximum of 10 minutes of collected waveforms held by the electrocardiogram examination apparatus 10, so it is necessary to display the waveforms while shifting the positions of the displayed waveforms. .

Note that the display of 1ch shown in FIG. 6 allows a long-time waveform to be confirmed on one screen compared to the display of 12ch (FIG. 4) and 6ch (FIG. 5). Therefore, the analysis range is selected on the 1ch display screen. Specifically, the user looks at the long-time waveform of 1ch and selects and sets the analysis range from the waveform.

However, in 1ch display, only one of the 12 leads can be displayed at the same time, so even if there is a problem such as noise in the lead that is not displayed, the user will not notice it and the analysis range will be reduced. may be selected and set. In this case, there arises a problem that an accurate analysis result cannot be obtained. Therefore, in the electrocardiogram examination apparatus, generally, after the user selects and sets the analysis range on the 1ch freeze screen as shown in FIG. 6, the 12ch freeze screen in FIG. 4 or the 6ch freeze screen in FIG. , you can check whether the selected analysis range is appropriate.

When the user operates the analysis range button B2, a screen for changing the length of the analysis range is displayed, and the user can change the length of the analysis range on the screen.

After selecting the analysis range on the 1ch (lead II) freeze screen as shown in FIG. 6, the user switches the screen to the freeze screen of FIG. 4 or FIG. It is also possible to confirm the state of waveforms other than the waveform of lead II).

Returning to FIG. 2, the operation of the electrocardiogram examination apparatus 10 of this embodiment will be described. The electrocardiogram examination apparatus 10 sets the analysis range in step S13. 6 and 7 are diagrams showing examples of analysis range selection screens according to the present embodiment. As can be seen from FIG. 6, the electrocardiogram examination apparatus 10 of the present embodiment is provided with an analysis candidate selection button B3. When the user operates this analysis candidate selection button B3, as shown in FIG. The electrocardiogram examination apparatus 10 enters a mode in which a plurality of analysis ranges can be set. In this mode, the user can select and set multiple analysis ranges by operating the main waveform display area A0.

In the example of FIG. 7, seven analysis ranges are selected and set. Information on this selection range is stored in the analysis range setting unit 13 .

Next, when the analysis button B4 is operated by the user, the electrocardiogram examination apparatus 10 proceeds to step S14, and the analysis unit 14 analyzes the electrocardiographic waveform within the analysis range selected and set in step S13. In the example of FIG. 7, since seven analysis ranges are set, the analysis unit 14 analyzes each electrocardiographic waveform within the seven analysis ranges.

Next, the electrocardiogram examination apparatus 10 moves to step S15 and displays the analysis result. 8 and 9 are examples of analysis result screens. First, in step S15-1, the first analysis result image (FIG. 8) of the seven analysis results is displayed. When the user recognizes that this analysis result image is based on an inappropriate analysis range and operates the next data button B5, the electrocardiogram examination apparatus 10 proceeds to step S15-2, and moves to step S15-2. display the analysis result image of The user operates the next data button B5 until the analysis result image based on the appropriate analysis range is displayed, and operates the save button B6 when the analysis result image based on the appropriate analysis range is displayed. As a result, the electrocardiogram examination apparatus 10 selectively displays and stores any one of the analysis results of the plurality of analysis ranges obtained by the analysis unit 14 .

FIG. 8 is an example of an analysis result image based on an inappropriate analysis range. As indicated by the frame line in the figure, it can be seen that noise is mixed in the V4 lead. FIG. 9 is an example of an analysis result image based on an appropriate analysis range. It can be seen that no noise is mixed in any lead. That is, when the analysis result image as shown in FIG. 8 is displayed, the user causes the electrocardiogram examination apparatus 10 to display the next analysis result image, and when the analysis result image as shown in FIG. 9 is displayed, This is stored in the electrocardiogram examination apparatus 10 .

As described above, according to the present embodiment, the analysis range setting unit 13 that can set a plurality of analysis ranges, and the analysis unit that performs analysis processing for each of the plurality of analysis ranges set by the analysis range setting unit 13 14, even if the user recognizes an analysis result image based on an inappropriate analysis range, the analysis result of another analysis range selected in advance without returning to the analysis range selection screen (Fig. 6) Images can be displayed sequentially. As a result, it is possible to shorten the time required from the selection of the analysis range to the end of the analysis.

In particular, when a small number of leads (only lead II in the embodiment) is displayed and the analysis range is selected and set in order to confirm a long-term waveform on one screen, noise, etc., may be generated in other leads that are not displayed. may be mixed in, the configuration and method of this embodiment are very effective.

Further, in the electrocardiogram examination apparatus 10 of the present embodiment, the analysis range setting unit 13 allows a plurality of analysis ranges to be set so as to partially overlap each other. Assuming that partial overlap of multiple analysis ranges is not allowed, even if multiple analysis ranges are set continuously without gaps, abnormalities that occur over multiple beats are separated by the analysis range settings. This is because there is a risk that an abnormality occurring across multiple analysis ranges may be missed without being detected. FIG. 7 shows how the plurality of analysis ranges are set so as to partially overlap each other. Of the seven analysis ranges shown in FIG. 7, the two analysis ranges shown in the bottom row are set to partially overlap each other. Of course, it is also possible to set more analysis ranges while partially overlapping them. By doing so, for example, for a section that you want to analyze strictly, such as a part that seems to be abnormal, you can set multiple analysis ranges while gradually shifting them so that they partially overlap, so that you will not miss an abnormality. analysis can be realized.

By the way, this kind of setting can be done by setting the analysis range separately on a separate screen as in the conventional method, but as in the present embodiment, setting multiple analysis ranges on the same screen With this method, the user can clearly grasp the positional relationship between the analysis ranges, so it becomes possible to make more subtle analysis range selections that consider the relationships between the analysis ranges.

The above-described embodiments are merely examples of specific implementations of the present invention, and the technical scope of the present invention should not be construed to be limited by these. That is, the present invention can be embodied in various forms without departing from its spirit or essential characteristics.

INDUSTRIAL APPLICABILITY The present invention is widely applicable as an electrocardiogram examination apparatus having a function of automatically analyzing an electrocardiographic waveform in an analysis range selected by a user, and an operating method thereof.

10 electrocardiogram examination device 11 display unit 12 operation unit 13 analysis range setting unit 14 analysis unit 15 display control unit

Claims (5)

a display unit;
an operation unit that receives user operations;
In the freeze screen of the electrocardiographic waveform for multiple beats displayed on the display unit, it is possible to collectively set a plurality of analysis ranges arranged in the time direction on the freeze screen according to user operation on the operation unit. an analysis range setting unit;
an analysis unit that performs analysis processing for each of the plurality of analysis ranges set by the analysis range setting unit;
An electrocardiogram examination device comprising: The analysis range setting unit allows the plurality of analysis ranges to be set so as to partially overlap each other in the time direction .
The electrocardiogram examination apparatus according to claim 1. selectively displaying and storing any one of the analysis results of the plurality of analysis ranges obtained by the analysis unit;
The electrocardiogram examination apparatus according to claim 1 or 2. The electrocardiographic waveform is an electrocardiographic waveform for one lead out of 12-lead electrocardiographic waveforms,
The electrocardiogram examination apparatus according to any one of claims 1 to 3. a step in which the display unit displays a freeze screen of electrocardiographic waveforms for a plurality of beats;
an analysis range setting unit collectively setting a plurality of analysis ranges arranged in the time direction in the freeze screen according to a user operation;
an analysis unit performing analysis processing for each of the plurality of analysis ranges set by the analysis range setting unit ;
A method of operating an electrocardiography device comprising:

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