Featured Research

from universities, journals, and other organizations

Flexible ECG Patch Extended To Enable Arrhythmia Detection

Date:
July 18, 2008
Source:
Interuniversity Microelectronics Centre
Summary:
Researchers have extended the functionality of the wireless ECG patch for cardiac monitoring. The innovative ECG patch is intended to monitor single-lead ECG in daily-life conditions, opening new perspectives for cardiovascular disease management.

Flexible core of IMEC's smart ECG patch.
Credit: IMEC

In the framework of Holst Centre, IMEC has further extended the functionality of its wireless ECG patch for cardiac monitoring. It added wave analysis software locally on the patch node. The algorithm achieves excellent results for sensitivity and predictivity, and covers a broad range of wave morphologies.

The innovative ECG patch is intended to monitor single-lead ECG in daily-life conditions, opening new perspectives for cardiovascular disease management. Besides technological advancements, IMEC also announces National Semiconductor, a specialist in energy-efficient analog integrated circuits, as a new partner within its Human++ program.

IMEC’s wireless ECG patch is a wearable, wire-free system easy to set-up. It removes disturbances and discomfort caused by current cardiac monitoring systems. The hybrid system combines electronic assembly on flexible polyimide substrate and integration in textile. This enables flexibility in one dimension and stretchability in the other, which is required for optimal personal comfort. The patch features IMEC’s proprietary ultralow-power biopotential ASIC (application specific integrated circuit) to extract the bio-potential signals produced during the ECG measurements, a commercial microcontroller and a 2.4GHz radio link.

The patch can continuously monitor the patient’s heart at a sample rate of up to 1KHz. It sends the results directly to the receiver, or it can analyze the signals locally before sending them. Local analysis reduces the use of the radio, improving the autonomy of the patch. The current autonomy with local delineation is 10 days of continuous monitoring.

The algorithm embedded in the system performs the delineation of the ECG signal, i.e. the detection of the important electrical waves from the heart. The delineator is able to identify P,Q, R, S, and T wave peaks and boundaries. Since the intervals and amplitudes of these waves contain most of the useful information of the ECG, this delineation will provide quick and useful information to the healthcare provider. The delineator on the ECG patch has been validated over all the recordings in the MIT QT database (a database developed by MIT which includes ECGs chosen to represent a wide variety of QRS and ST-T morphologies, in order to challenge QT detection algorithms with real-world variability). IMEC’s ECG patch achieves a 99.93% sensitivity and a 98.28% positive predictivity for QRS detection on 86994 beats. For delineation over 3623 beats, it reaches a 99.83% sensitivity and a 95.08% positive predictivity.

IMEC’s Human++ program develops technology for wireless autonomous sensor systems that can be used for health and wellness monitoring. Such systems will for example enable analysis of people with sleep apnea from home or monitor epilepsy patients in an ambulatory setting. The program was launched in 2002 and got a considerable boost in 2005 when IMEC decided to house it in Holst Centre, a new research center set up together with the Dutch research institute TNO under impulse of the Dutch government.

National Semiconductor recently joined the Human++ program. Other Holst Centre partners include Alcatel-Lucent, ASML, Bekaert, NXP, Philips, Target Compiler Technologies and Texas Instruments.

Bert Gyselinckx, Human++ program director: “We see that the Human++ technical progress is reflected in a growing industrial interest. Our physiological monitoring systems are based on ultra-low power wireless communication and start to make use of innovative energy harvesting technology. They are finding applications in sleep staging analysis, cardiac arrhythmia detection and epilepsy monitoring. The growing interest from industry worldwide is proven by new partnerships.”


Story Source:

The above story is based on materials provided by Interuniversity Microelectronics Centre. Note: Materials may be edited for content and length.


Cite This Page:

Interuniversity Microelectronics Centre. "Flexible ECG Patch Extended To Enable Arrhythmia Detection." ScienceDaily. ScienceDaily, 18 July 2008. <www.sciencedaily.com/releases/2008/07/080714144731.htm>.
Interuniversity Microelectronics Centre. (2008, July 18). Flexible ECG Patch Extended To Enable Arrhythmia Detection. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/07/080714144731.htm
Interuniversity Microelectronics Centre. "Flexible ECG Patch Extended To Enable Arrhythmia Detection." ScienceDaily. www.sciencedaily.com/releases/2008/07/080714144731.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Peace Corps Pulls Workers From W. Africa Over Ebola Fears

Peace Corps Pulls Workers From W. Africa Over Ebola Fears

Newsy (July 30, 2014) The Peace Corps is one of several U.S.-based organizations to pull workers out of West Africa because of the Ebola outbreak. Video provided by Newsy
Powered by NewsLook.com
Weather Kills 2K A Year, But Storms Aren't The Main Offender

Weather Kills 2K A Year, But Storms Aren't The Main Offender

Newsy (July 30, 2014) Health officials say 2,000 deaths occur each year in the U.S. due to weather, but it's excessive heat and cold that claim the most lives. Video provided by Newsy
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins