Apparatus System for Detection of Cardiac Insufficiency

Jamroży, M.; Lewenstein, K.

doi:10.1007/978-3-642-23244-2_79

Cited by 2 publications

(3 citation statements)

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“…The ECG signal received from Einthoven I and II leads and V6 Wilson precordial lead is transmitted to the computer using Bluetooth. [4] Due to such a choice of ECG leads, we are able to determine mathematically the signals of Einthoven III leads and Goldberger leads; V6 lead receives signal mainly from the left ventricle, which is very important in CHF. ECG signals are filtered only with the use of anti-aliasing filters.…”

Section: Methodsmentioning

confidence: 99%

“…These signals are sampled by the measuring card; internal timer of 800 Hz works independently of the timer of a sampling system located in ECG apparatus. This results in synchronization problems that are solved and described in details in our previous paper [4].…”

Section: Methodsmentioning

confidence: 99%

“…When an error occurs in transmission between the apparatus and a com- puter, the record is stopped and the announcement is shown with information about actions that have to be undertaken. The number of errors in transmission depends mainly on electromagnetic interference in the room where the examination takes place [4]. The next part of the examination is the collection of medical information that are significant in terms of CHF diagnostics.…”

Section: Methodsmentioning

confidence: 99%

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The use of recurrence plots and beat recordings in chronic heart failure detection

Lewenstein

Jamroży

Leyko³

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. Chronic heart failure is a syndrome consisting in clinical symptoms that arise as a result of complications of many disease entities. According to the definition it is a condition in which, as a consequence of permanent heart dysfunction, cardiac output is reduced in relation to tissues' metabolic demand. This results in subjective symptoms or proper cardiac output is sustained over higher filling pressure of the left heart ventricle. The occurrence of disease among adults in Europe and North America is 0.4-2%. Heart dysfunction detected by echocardiography appears with the frequency of 3%, and in people over 60 years of age it doubles with each decade of life, reaching 10% after 80 years of age. The aim of the study is to make an acquisition of fremitus in apex beat place and quantitative evaluation of some of their features which are correlated with the advanced syndrome. We have built the apparatus for the heart signal recording and proposed the original method of its analysis based on the theory of chaos and recurrence plots. It gave us, on the group of 85 patients, sensitivity equal to 0.896 specificity equal to 0.676 and the accuracy of diagnostics of the chronic heart failure equal up to 80%.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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