JPH05131A - Electrocardiogram diagnosis analysis system for user individually - Google Patents

Abstract

PURPOSE:To enable the setting of diagnosis criterion desired for users individually by a method wherein the diagnosis criteria are registered in several patterns and one pattern thereof is corrected to prepare a new pattern. CONSTITUTION:A diagnosis criterion file 2 is displayed and with a diagnosis criterion selecting section 1, conditions of the diagnosis criterion are altered to select a diagnosis criterion as new reference. The diagnosis criterion selected is altered in number with a correcting section 3 and the results are registered into the diagnosis criterion file as new diagnosis criterion. As method of altering the number, conditions of the diagnosis criterion are displayed on a CRT and a cursor is so arranged to be switched one at a time on the number alone. This allows a physician to make alteration by bringing the cursor onto the number desired to be altered to input a new number into a keyboard thereby enabling the preparation of a new criterion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrocardiogram diagnostic analysis system, and more particularly to a user-specific electrocardiographic diagnostic analysis system for automatically analyzing a diagnostic name from an input electrocardiogram.

[0002]

2. Description of the Related Art Conventionally, this kind of electrocardiogram diagnostic analysis system is considered to be the most general diagnostic standard, but the opinion of a key user determines only one diagnostic standard for one type of electrocardiograph. It was often done.

[0003]

The above-mentioned conventional electrocardiogram diagnostic system has a diagnostic standard that reflects the opinion of the key user, and therefore cannot support a user who is considering a diagnostic standard different from that of the key user. There are drawbacks.

[0004]

A user-specific electrocardiogram diagnostic analysis system according to the present invention comprises an electrocardiogram input section for amplifying and A / D converting an electrocardiogram and inputting it, and a preprocessing for checking a waveform quality and determining a representative QRS wave. Section, a section point recognition section for recognizing the start point and the end point of each of P, QRS, and T waves, a measurement section for measuring an amplitude value / time width, and a diagnosis section for diagnosing waveforms and arrhythmias In the analysis system,
A diagnostic standard file in which patterns of a plurality of diagnostic standards are registered, and a diagnostic standard selection unit that selects which of the plurality of diagnostic standards is to be modified and loads the information into a memory, It comprises a correction unit that changes the diagnostic standard and writes it in the diagnostic standard file, and an interpreter unit that has the role of passing the information modified by the correction unit to the diagnostic unit.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the first and second embodiments of the present invention.

The first embodiment is an example of a system capable of changing a numerical value of an existing diagnostic standard and creating a new diagnostic standard. For example, "P wave of the first lead is 100 ms
The condition of "equal to or more than ec" is "the P wave of the first induction is 11
It is possible to satisfy the condition that it is 0 msec or more. " To do so, first, the diagnostic criteria file 2 in FIG.
Is displayed, and the condition for the diagnostic standard is changed in the diagnostic standard selection unit 1 to select a new diagnostic standard. The diagnostic standard file 2 has a table of contents 21 of the diagnostic standard file of FIG. 2 and a condition table of each diagnostic standard as shown in FIG. 3, and the doctor sets the condition of the diagnostic standard in the condition table of the diagnostic standard. After confirmation, the diagnostic criteria can be selected in the table of contents.

The numerical value of the selected diagnostic standard is changed by the correction unit 3 and registered in the diagnostic standard file as a new diagnostic standard. As a method of changing the numerical value, the condition of the diagnostic standard as shown in FIG. 3 is displayed on the CRT, and the cursor can be switched only one by one, and the doctor holds the cursor on the numerical value to be changed. It can be changed by inputting a new numerical value with the keyboard. For example, referring to FIG. 3, one of the conditions of the left atrial load, “P wave of the first lead is 100 msec or more”, is “110 msec.
If it is changed to "above", the cursor is moved to the portion displayed as 100 in the figure and changed to 110. If the P wave of the second lead is also desired to be "110 msec or more", move the cursor to the right by one, and enter 110 at the 100 position. Regarding the registration, what is changed here and used as a new diagnostic reference is added as the diagnostic reference 2 as shown in FIG. A new standard is created by the above.

Here, when the electrocardiogram is actually input and diagnostic analysis is performed, the following procedure is performed. First, as in the conventional case, the electrocardiogram is input by the electrocardiogram input unit 51, the waveform quality is checked, and the preprocessing unit 52 performs preprocessing for determining representative QRS data from some QRS waves. 53
Then, the start point and the end point of each of the P wave, QRS wave, and T wave are recognized, and the measuring unit 54 measures the amplitude value and the time width. Then, the interpreter unit 4 reads only the numerical part from the diagnostic standard file for the “diagnostic standard” selected last by the diagnostic standard selection unit 1, and passes the numerical data to the diagnostic unit 41. Finally, diagnosis is performed based on the numerical data passed by the diagnosis unit 41.

Next, a second embodiment will be described.

In the first embodiment, only the numerical value of the diagnostic standard can be changed, but in the second embodiment, all the conditional statements of the diagnostic standard can be changed. Therefore, for example, the condition sentence is symbolically described as shown in FIG. That is, P
The time width of the wave is Pt, the unit is msec, the amplitude value of the P wave is Pr, the unit is 0.1 mV, and the induction name is described separately. Further, as shown in FIG. 5, for example, when the P wave of V1 induction is biphasic and there is a positive wave and a negative wave, the width Pb of the negative phase in msec unit and the amplitude P in 0.1 msec unit.
It is represented by an arithmetic inequality with a. The logical sum (O
R) condition is written, and if the line is changed, it becomes a logical product (AND) condition.

In the case of FIG. 4, "If the P wave in the first or second lead is 100 msec or more and the P wave in the V1 lead is biphasic, it means that it is a left atrium load. Does not switch the cursors to numerical values one by one, but makes a modification like an ordinary editor.

The interpreter unit 4 converts the symbolized conditional sentence into a programming language by pattern matching to rewrite the program of the diagnostic unit 41.

[0013]

As described above, according to the present invention, a desired diagnostic standard can be set for each user by registering several diagnostic standards and correcting one of them to create a new pattern. There is an effect.

Further, there is an effect that it is also useful when the user conducts research such as pursuing the degree of maximum likelihood of the diagnostic criteria.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a table of contents of a diagnostic standard table.

FIG. 3 is an explanatory diagram showing conditions of a diagnostic standard of the first embodiment.

FIG. 4 is an explanatory diagram showing conditions of a diagnostic standard of the second embodiment.

FIG. 5 is an explanatory diagram of Pa and Pb of a biphasic P wave.

[Explanation of symbols]

 1 Diagnostic criteria selection section 2 Diagnostic criteria file 3 Correction section 4 Interpreter section

Claims (1)

Claim: What is claimed is: 1. An electrocardiogram input unit for amplifying and A / D converting an electrocardiogram, and inputting the same; a preprocessing unit for checking waveform quality and determining a representative QRS wave; and P, QRS, and T waves respectively. In the electrocardiogram diagnostic analysis system, which includes a segmentation point recognition unit that recognizes the start point and the end point of the pulse, a measurement unit that measures the amplitude value / time width, and a diagnosis unit that diagnoses the waveform and arrhythmia, a pattern of a plurality of diagnostic criteria A registered diagnostic standard file and a diagnostic standard selection unit that selects which one of the plurality of diagnostic standards is to be modified and loads the information into the memory; An electrocardiogram diagnostic analysis system for each user, comprising: a correction unit to be written in a diagnosis reference file; and an interpreter unit having a role of passing information changed by the correction unit to the diagnosis unit.