Results 11 to 20 of about 869 (171)

A Chest‐Conformable, Wireless Electro‐Mechanical E‐Tattoo for Measuring Multiple Cardiac Time Intervals

Advanced Electronic Materials, 2023
Cardiovascular diseases are the leading cause of death globally. Noninvasive, accurate, and continuous cardiovascular monitoring can enable the preemptive detection of heart diseases and timely intervention to prevent serious cardiac complications ...
Sarnab Bhattacharya, Mohammad Nikbakht, Alec Alden, Philip Tan, Jieting Wang, Taha A. Alhalimi, Sangjun Kim, Pulin Wang, Hirofumi Tanaka, Animesh Tandon, Edward F. Coyle, Omer T. Inan, Nanshu Lu   +12 more
doaj   +2 more sources

Can Seismocardiogram Fiducial Points Be Used for the Routine Estimation of Cardiac Time Intervals in Cardiac Patients? [PDF]

Frontiers in Physiology, 2022
The indexes of cardiac mechanics can be derived from the cardiac time intervals, CTIs, i.e., the timings among the opening and closure of the aortic and mitral valves and the Q wave in the ECG.
Zeynep Melike Işilay Zeybek, Vittorio Racca, Antonio Pezzano, Monica Tavanelli, Marco Di Rienzo   +4 more
doaj   +2 more sources

A Frequency Estimation Scheme Based on Gaussian Average Filtering Decomposition and Hilbert Transform: With Estimation of Respiratory Rate as an Example [PDF]

Sensors, 2023
Frequency estimation plays a critical role in vital sign monitoring. Methods based on Fourier transform and eigen-analysis are commonly adopted techniques for frequency estimation.
Yue-Der Lin, Yong-Kok Tan, Tienhsiung Ku, Baofeng Tian   +3 more
doaj   +2 more sources

Electrode-Free ECG Monitoring with Multimodal Wireless Mechano-Acoustic Sensors [PDF]

Biosensors
Continuous cardiovascular monitoring is essential for the early detection of cardiac events, but conventional electrode-based ECG systems cause skin irritation and are unsuitable for long-term wear.
Zhi Li, Fei Fei, Guanglie Zhang
doaj   +2 more sources

Classification of Aortic Stenosis Patients via ECG-Independent Multi-Site Measurements of Cardiac-Induced Accelerations and Angular Velocities at the Skin Level [PDF]

IEEE Open Journal of Engineering in Medicine and Biology
Goal: To evaluate the suitability of seismocardiogram (SCG) and gyrocardiogram (GCG) recorded at the skin level to classify aortic stenosis (AS) patients from healthy volunteers, and to determine the optimal sensor position for the classification ...
Chiara Romano, Emanuele Maiorana, Annunziata Nusca, Simone Circhetta, Sergio Silvestri, Schena Emiliano, Gian Paolo Ussia, Carlo Massaroni   +7 more
doaj   +2 more sources

Noninvasive Hemodynamic Assessment by a Sensor Patch [PDF]

JACC: Advances
Background: Echocardiographic timing intervals provide prognostic information in patients with preclinical cardiac dysfunction. Reduced diastolic filling time (DFT) identifies left bundle branch block patients at risk for cardiomyopathy.
Zak Loring, MD, MHS, Nicholas B. Bolus, PhD, F. Brennan Torstrick, PhD, Danielle Wilson, BS, Melissa Lefevre, BS, Brett D. Atwater, MD, Anita Kelsey, MD, MBA, Jonathan P. Piccini, MD, MHS   +7 more
doaj   +2 more sources

Multichannel Seismocardiography:A Novel Method for Investigating the Seismocardiogram [PDF]

, 2018
Seismocardiography (SCG) have long been proposed as the mechanical counterpart of electrocardiography. However, while the different components of the electrocardiography have been accounted for the SCG seems more complex.
Munck, Kim, Schmidt, Samuel Emil, Struijk, Johannes Jan, Sørensen, Kasper   +3 more
core   +5 more sources

Visualization of the Multichannel Seismocardiogram [PDF]

Computing in Cardiology Conference (CinC), 2019
Munck, Kim, Schmidt, Samuel Emil, Struijk, Johannes Jan, Sørensen, Kasper   +3 more
core   +5 more sources

Mechanical deconditioning of the heart due to long-term bed rest as observed on seismocardiogram morphology [PDF]

npj Microgravity, 2022
During head-down tilt bed rest (HDT) the cardiovascular system is subject to headward fluid shifts. The fluid shift phenomenon is analogous to weightlessness experienced during spaceflight microgravity.
Bradley Hoffmann, Parastoo Dehkordi, Farzad Khosrow-Khavar, Nandu Goswami, Andrew P. Blaber, Kouhyar Tavakolian   +5 more
doaj   +2 more sources

A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals

Advanced Science, 2019
Seismocardiography (SCG) is a measure of chest vibration associated with heartbeats. While skin soft electronic tattoos (e‐tattoos) have been widely reported for electrocardiogram (ECG) sensing, wearable SCG sensors are still based on either rigid ...
Taewoo Ha, Jason Tran, Siyi Liu, Hongwoo Jang, Hyoyoung Jeong, Ruchika Mitbander, Heeyong Huh, Yitao Qiu, Jason Duong, Rebecca L. Wang, Pulin Wang, Animesh Tandon, Jayant Sirohi, Nanshu Lu   +13 more
doaj   +2 more sources