Abstract
Objectives: The present study was to develop and design a simple and low cost ECG setup for patient care. The device is a low cost and simple approach for acquiring ECG data. The present study mainly focuses on reliability and consistency for acquiring the ECG data. It should be simple to use, portable and low cost to implement. Methods: The following study was conducted between two groups of subjects; each group contains n=40 subjects. First the subjects were recruited to the department of physiology autonomic function laboratory and the demographic and anthropometric data was acquired. The subjects were allowed to rest for some time. Single lead ECG was obtained using AD8232 custom designed module and was connected to a laptop as signal was captured by audacity software and compared against a medical grade ECG monitor and the results were analyzed. Findings: From our study it is clearly evident that there is a strong positive correlation of ECG data obtained between AD8232 and standard clinically approved ECG monitor r=0.9 (p 0.001). Now it is clearly evident that we can use AD8232 module instead of standard ECG device for basic monitoring. Novelty: The new device developed successfully captured single lead ECG which is a low cost implementation around |2350 (table given in annexure). Capturing ECG with microphone input is quite new way of acquiring ECG signals. The new device was easy to set up, no special software is needed to acquire the signal runs on USB voltage which is 5v. The device is simple to use, open source hardware and consistent with the recordings when compared with the standard ECG monitor. The latest device can be configured in many ways for future applications using open source sound capturing software. Audacity open source software. Keywords: Portable ECG; single lead; USB; open source; AC; DC; AD8232; GPL
Highlights
Cardio vascular diseases were one of the leading causes of deaths worldwide in 2011 [1]
The current device was a low cost implementation which is an improved version with single PCB and quite portable compared to the other single lead ECG devices
According to the above data, AD8232 can be used as an alternative to standard ECG monitor for basic monitoring and analysis of ECG which is statistically significant with (p≤0.001)
Summary
Cardio vascular diseases were one of the leading causes of deaths worldwide in 2011 [1]. There are many significant portable devices are developed with the AD823X module using Arduino platform they required 2 to 3 PCB boards to operate and special python program to execute signal acquiring code[7]. The current device was a low cost implementation which is an improved version with single PCB and quite portable compared to the other single lead ECG devices. Our device was developed to acquire the ECG signal with low cost (anx1) without any special software can be implemented even in the rural Indian setup where the resources are very limited, only by using a laptop and my portable ECG device. The current device will bring ECG recording into very practical and easy to record level
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