Title :
Numerical simulation of motion-induced dynamic noise in a ubiquitous ECG application
Author :
Kim, Young Tae ; Lim, Ki Moo ; Hong, Seong Bae ; Ryu, Ah Jin ; Ko, Byung Hoon ; Bae, Sang Kon ; Shin, Kun Soo ; Shim, Eun Bo
Author_Institution :
Department of Mechanical & Biomedical Engineering, Kangwon National University, Chuncheon, Ganwon-do, South Korea
fDate :
Aug. 30 2011-Sept. 3 2011
Abstract :
Wearable ubiquitous biomedical applications, such as ECG monitors, can generate dynamic noise as a person moves. However, the source of this noise is not clear. We postulated that the dynamic ECG noise has two causes: the change in displacement of the heart during motion and the change in the electrical impedance of the skin-gel interface due to motion-induced deformation of the skin-gel interface. Using a three-dimensional electrophysiological heart model coupled with a torso model, dynamic noise was simulated, while the displacement of the heart was changed in the vertical and horizontal directions, independently and while the skin-gel interface was deformed during motion. To determine the deformation rate of the skin and sol-gel layers, motion-induced deformation of the two layers was simulated using a three-dimensional finite element method.
Keywords :
Dynamics; Electrocardiography; Heart; Impedance; Noise; Skin; Solid modeling; Algorithms; Artifacts; Computer Simulation; Diagnosis, Computer-Assisted; Electrocardiography; Heart Conduction System; Models, Cardiovascular; Motion; Reproducibility of Results; Sensitivity and Specificity; Skin Physiological Phenomena;
Conference_Titel :
Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-4121-1
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2011.6090231