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Item type:Publication, Access status: with files , Developing a protocol for aligning and correlating seismocardiography with echocardiographySeismocardiography (SCG) monitors health metrics through body surface vibrations from heart activity. The BEAT experiment required echocardiography (ECHO) to correlate SCG signals with cardiac events. Since no standardized ECHO protocol existed, the authors developed one. The protocol focused on recording mitral and aortic valve openings and closings using multiple ECHO modalities for accuracy, ensuring usability, comfort, and efficient data collection. It was tested on healthy subjects and allowed post-hoc analysis of cardiac function. This standardized protocol aims to enhance comparability across SCG studies and offers a reliable method for correlating SCG signals with cardiac events.Publicationtype: Journal Article8 7 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Echocardiography correlation with seismocardiography-systematic reviewA methodological systematic review included literature retrieved from Scopus, PubMed, and IEEE-Explore. 61 studies on seismocardiography (SCG) and echocardiography (ECHO) were found. After screening for aortic and mitral valve timing events, 12 studies were selected. These studies focused on correlating SCG signals with ECHO using M-mode, PW-Doppler, CW-Doppler, and TDI. Variations in sensor placement and subject positioning highlighted the need for standardization. Our review stresses the importance of clear objectives, standardized protocols, and recording disease-specific impacts on heart mechanics for future research.Publicationtype: Review Article7 13 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , On-site visualization of ballistocardiography dataWe describe the background, features and functions of a custom application for the acquisition, live presentation, and convenient recording of ballistocardiography data acquired by external accelerometric sensors.Publicationtype: Book Part60 51 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Beat to BEAT non-invasive investigation of cardiac function on the international space station(IOS Press, 2022-07); ; ; ; This paper describes the protocol of the microgravity experiment BEAT (Ballistocardiography for Extraterrestrial Applications and Long-Term Missions). The current study makes use of signal acquisition of cardiac parameters with a high-precision Ballistocardiography (BCG)/Seismocardiography (SCG) measurement system, which is integrated in a smart shirt (SmartTex). The goal is to evaluate the feasibility of this concept for continuous wearable monitoring and wireless data transfer. BEAT is part of the 'Wireless Compose-2' (WICO2) project deployed on the International Space Station (ISS) that will provide wireless network infrastructure for scientific, localization and medical experiments.Publicationtype: Conference PaperScopus© Citations 1 57 44 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Seismocardiography with smartphones: no leap from bench to bedside (yet)For a decade, seismocardiography (SCG) on smartphones has been an interesting topic within the technical community, but mobile applications for this topic are rare on the market. The transition from laboratory to bedside application seems to have not yet been completed. To possibly increase the chances of a successful implementation, the added value of the method needs to be addressed clearly and backed up by research. The authors address the following aspects. 1. To improve comparability, standardization is required, 2. adequate validation processes in clinical settings will build trust, but foremost, 3. the field of application should be critically evaluated to identify the most meaningful and reasonable benefit of this method.Publicationtype: Conference PaperScopus© Citations 1 76 172 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Time bias awareness in ECG-based multiple source data matchingFor cardiological datasets acquired via different methodologies, ECG signals that are recorded in parallel allow for relatively accurate matching. Some research issues, e.g., the identification of timings of the cardiac cycle in seismocardiography, require higher temporal resolutions. Therefore, we introduce a method derived from a feasibility study to determine deviations and factors influencing the merging of signals simultaneously recorded with different modalities.Publicationtype: Conference Paper36 55 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , A structured measurement of highly synchronous real-time ballistocardiography signal data of heart failure patients(2020-06-16); ; ; ; Ballistocardiography (BCG) has gained more attention due to the fundamental goal of medical intervention in diagnostics and follow-up. BCG is particularly suitable for the study of heart failure, which a recent study has shown. The results of this working group shall be validated and reproduced with another study trial. Therefore, acceleration sensor prototypes will be placed on various parts of the patient's body and be connected to a computer unit, which allows a high data quality and high signal resolution. A temporal shift of only 20 ns ensures real-time measurement of BCG parameters. The reference measurement will be done with a 12-channel ECG. The study will include patients with heart failure. All conducted tests take place as part of the diagnostic-therapeutic routine. The only change in the procedure concerns the additional equipment with the measuring sensors. The results will be the validation of the data from the other working group, as well as the information about the choice of sensors and clock frequency, the measuring points and the needed features for early detection of heart failure in BCGsignals.Publicationtype: Conference PaperScopus© Citations 1 26 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Development of a Presentation Interface for Seismo- A nd Ballistocardiographic DataBallistocardiography is a method to gain detailed information about body movements imparted by the ballistic forces associated with cardiac contraction. We measured using different setups and sensor positions to gain information of a reference signal of healthy adults. We used two resting state recordings and two recordings under physical stress (ergometer and treadmill) with stepwise increasing load. Data was gathered from 34 subjects, which results in 72 data sets, overall, more than 18h of signal data. With these data we have created a first database for BCG reference. We started data analysis and created a first naive data representation prototype. Using this naive attempt, we created a user interface for the intuitive representation of live data as well as retrospective data.Publicationtype: Conference Paper53 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , First feasibility analysis of ballistocardiography on a passenger flightThe project SCARAB2 (Scalable, Robust and Adaptive on Board Ballistocardiography) aims to use Ballistocardiography (BCG) to monitor flight passengers. In order to show that recorded BCG data from flights give evaluable information even in the noisy environment of an airplane, we monitored a heart-healthy passenger using BCG. Furthermore, we show that there can be a conclusion to heart activities from the recorded ballistocardiogram by comparing the data to a concurrently recorded electrocardiogram (ECG).Publicationtype: Conference PaperScopus© Citations 4 19 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Wireless sensor network for fall prevention on geriatric wards: A reportWith regard to the growing number of older adults, it needs smart solutions for fall prevention. Especially at geriatric institutions, the risk of falling is very high and frequently leads to injuries, resulting in serious consequences. We present the Inexpensive Node for Bed Exit Detection (INBED), a comprehensive signaling system for fall prevention. The INBED system is based on a wireless sensor network infrastructure via IEEE802.15.4 and highly-specialized open hardware in-house developed wearable. The device, which will be attached to the patients, can detect several types of movement. Occurring events are forwarded to the nursing staff immediately by using the self-organizing and scalable network including wide area network integration. The system can help to relieve the staff while the personal freedom of movement and privacy of patients is increased. With this development, the energy-efficient, simple and intuitive mechanisms of proximity communication can be combined with broadband benefits.Publicationtype: Conference PaperScopus© Citations 3 26