Computer program for diagnostic evaluation of electrocardiograms

Wartak, J; Milliken, John A.; Karchmar, J.

doi:10.1016/0010-4809(71)90028-0

Cited by 18 publications

(4 citation statements)

References 2 publications

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“…In addition, attempts have been made to employ decision tables for formulating and/or computerizing medical diagnoses. [4][5][6] Decision tables can also be useful for the planning and analysis of drug therapy and for monitoring its outcome. First, they can be used as a simple and rigorous means of expressing the complex process of making therapeutic decisions.…”

Section: Discussionmentioning

confidence: 99%

Decision Tables for Planning Drug Therapy

Wartak¹,

Miller²

1979

Drug Intelligence & Clinical Pharmacy

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A new method of planning drug therapy is described. The method employs so-called decision tables, which have been used effectively in commercial and scientific data processing for over a decade. The decision tables seem to provide a simpler, clearer and more concise means of expressing the complexity and logic of the therapeutic decision making process. The use of decision tables is illustrated by an example involving therapeutic regimens in hypertensive disease.

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Section: Discussionmentioning

confidence: 99%

Decision Tables for Planning Drug Therapy

Wartak¹,

Miller²

1979

Drug Intelligence & Clinical Pharmacy

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“…This is a very natural way to think about programming the relations between ECG data and ECG diagnostics, but it has a rather unclear control path and usually produces a very complicated program (Bonner & Schwetman, 1968a). The binary logic system may be used to create decision tables that provide a clear and very compact means for expressing complex relations between ECG items and ECG diagnostic categories (Wartek, Milliken, & Karchman, 1971). This last method was the one chosen to develop the ECG analysis program on the 8080 microcomputer system.…”

Section: Common Methods Of Ecg Analysis Programsmentioning

confidence: 99%

“…Figures 7, 8, 9 show the decision tables developed for analysis of ECG arrhythmias on the 8080 system. These three decision tables are adapted from a FORTRAN ECG analysis program developed by Wartek et al (1971). The number of conditions never exceeds eight in any of the decision tables, because the 8080 system, with only 8-bit bytes, can only represent eight different conditions.…”

Section: Incorporating Decision Tables Into a Microcomputer Programmentioning

confidence: 99%

The design, development, and implementation of a microprocessor-based ECG analysis system

Murray

1982

Behavior Research Methods & Instrumentation

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This paper describes the research effort to design, develop, and implement a microprocessorbased ECG data acquisition, reduction, and analysis system for operation in real-time. This unit can be attached to three-channel ECG carts and provide an immediate on-site analysis. The basic design and development efforts include (1) the data acquisition, reduction, and matrix assembly, (2) ECG arrhythmia, P-wave, and axis analysis, (3) ECG contour analysis, and (4) a real-time three-channel data acquisition unit. Decision tables are used in the analysis. The implementation of these projects into a small microprocessor-based unit coupled to a three-channel recorder is now in progress. This system, coupled with a small printer, will provide immediate on-site ECG analysis for most cardiovascular dysfunctions.

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“…Disagreements between ECG interpretations by physicians and computer programs have occurred and the frequency of these disagreements reported in published studies has varied widely depending upon the specific computer program analyzed and the methods of analysis utilized by the authors. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] For example, in some studies the percentage and variety of abnormalities were small. In other studies the physician-reviewers were allowed to examine computer printouts before making a final judgment and thus were not constrained to specific fixed criteria.…”

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confidence: 99%

A Method for Evaluating Computer Programs for Electrocardiographic Interpretation

et al. 1974

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The programs studied in these three reports were chosen for two reasons: first, they were available to the National Institutes of Health, and second, they could be implemented on computers readily available to the National Institutes of Health. However the methods for evaluation reported here could be used at any other institution and are not dependent upon a specific program or computer system. The authors have a continuing interest in automated ECG analysis and may select for study additional programs, the treatment of ECG analysis of which differs significantly from the programs reported here. The results of these studies will be submitted for publication in an appropriate journal. Conclusions drawn from these studies including the present three reports represent the considered opinions of the authors and do not represent any official policy of the Department of Health, Education and Welfare. SUMMARYA method for evaluating computer programs for electrocardiographic interpretation is described. This method allows a clinician to judge the usefulness of a program for his specific setting and needs. The method requires a significant proportion and variety of abnormal tracings, the application of specific fixed criteria, and the separation of disagreements between the computer program and the clinician into those resulting from criteria differences and those resulting from programming errors, viz., pattern recognition failures, mismeasurements, and/or deficient program logic. When applied to the experimental IBM program 1971, staff cardiologists found essential agreement with the program's results in 76% of 1150 unselected tracings. Clinically significant disagreements based strictly on the application of different criteria occurred in 20% of the tracings, whereas disagreements based on program errors were found in only 4%. Although this program requires some system of human overview and quality checking, its potential for clinical implementation is worthy of consideration.

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Computer program for diagnostic evaluation of electrocardiograms

Cited by 18 publications

References 2 publications

Decision Tables for Planning Drug Therapy

Decision Tables for Planning Drug Therapy

The design, development, and implementation of a microprocessor-based ECG analysis system

A Method for Evaluating Computer Programs for Electrocardiographic Interpretation

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