Abstract：
:Various simulation models of different complexity have been proposed to model the dynamic response of the human cardiovascular system. In a related paper we proposed an improved numerical model to study the dynamic response of the cardiovascular system, and the pressures, volumes and flow-rates in the four chambers of the heart, which included the effects of atrial contraction, atrioventricular interaction, and heart valve dynamics. This paper investigates the effects of each one of these aspects of the model on the overall dynamic system response. The dynamic response is studied under different situations, with and without including the effect of various features of the model, and these situations are studied and compared among themselves and to detailed aspects of expected healthy-system response. As an important contribution with potential clinical applications, this paper examines the corresponding effects of atrioventricular interaction, and heart valve opening and closing dynamics to the general system dynamic response. This isolation of physical cause-effect relationships is difficult to study with purely experimental methods. The simulation results agree well with results in the open literature. Comparison shows that introduction of these new features greatly improves the simulation accuracy of the effects of a, v and c waves, and in predicting regurgitant valve flow, the dichrotic notch, and E/A velocity ratio.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Korakianitis T,Shi Ydoi
10.1016/j.medengphy.2005.11.005subject
Has Abstractpub_date
2006-10-01 00:00:00pages
762-79issue
8eissn
1350-4533issn
1873-4030pii
S1350-4533(05)00247-Xjournal_volume
28pub_type
杂志文章abstract：:This work compared the performance of six different fatigue detection algorithms quantifying muscle fatigue based on electromyographic signals. Surface electromyography (sEMG) was obtained by an experiment from upper arm contractions at three different load levels from twelve volunteers. Fatigue detection algorithms m...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2016.09.009
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abstract：:This study tested the effectiveness of low-level laser therapy (LLLT) in preventing and/or treating osteoporotic trabecular bone. Mice were ovariectomized (OVX) to induce osteoporotic bone loss. The tibiae of eight OVX mice were treated for 5 days each week for 2 weeks by LLLT (660 nm, 3 J) using a minimally invasive ...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2012.10.002
更新日期：2013-07-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章,评审
doi：10.1016/j.medengphy.2010.04.009
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abstract：:The construction and performance of a 5.4 m3 combined direct and indirect calorimeter for human subjects is described. The calorimeter was constructed for studies on human subjects primarily undergoing fast alterations in heat production and heat losses, e.g. after a meal or during physical exercise. A heat sink and a...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(98)00037-x
更新日期：1998-06-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2020.09.003
更新日期：2020-11-01 00:00:00
abstract：:A three-layer artificial neural network was used for adaptive control of gait swing generated by neuromuscular electrical stimulation (NMES) in a spinal cord injured subject. Network inputs consisted of knee and ankle goniometer signals for System 1, and knee and hip angular data for System 2. Controller output was pr...
journal_title：Medical engineering & physics
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doi：10.1016/s1350-4533(96)00030-6
更新日期：1997-01-01 00:00:00
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journal_title：Medical engineering & physics
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doi：10.1016/j.medengphy.2009.11.004
更新日期：2010-03-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(99)00053-3
更新日期：1999-06-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 临床试验,杂志文章
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更新日期：2004-07-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
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更新日期：2020-09-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.04.008
更新日期：2011-11-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2016.09.022
更新日期：2016-12-01 00:00:00
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journal_title：Medical engineering & physics
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doi：10.1016/j.medengphy.2014.07.014
更新日期：2014-11-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(01)00036-4
更新日期：2001-04-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(03)00099-7
更新日期：2003-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章,评审
doi：10.1016/j.medengphy.2006.01.006
更新日期：2007-01-01 00:00:00
abstract：:Comprehensive evaluation of results obtained using acoustic and contact microphones in screening for laryngeal disorders through analysis of sustained phonation is the main objective of this study. Aiming to obtain a versatile characterization of voice samples recorded using microphones of both types, 14 different set...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2014.12.005
更新日期：2015-02-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2014.01.001
更新日期：2014-06-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.01.014
更新日期：2011-07-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(00)00003-5
更新日期：1999-12-01 00:00:00
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journal_title：Medical engineering & physics
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.06.005
更新日期：2011-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2008.01.005
更新日期：2008-11-01 00:00:00
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journal_title：Medical engineering & physics
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doi：10.1016/j.medengphy.2019.09.012
更新日期：2019-12-01 00:00:00
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journal_title：Medical engineering & physics
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journal_title：Medical engineering & physics
pub_type： 临床试验,杂志文章
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更新日期：1994-07-01 00:00:00
abstract：:Bone-attached robots and microstereotactic frames, intended for deep brain stimulation and minimally invasive cochlear implantation, typically attach to a patient's skull via bone anchors. A rigid and reliable link between such devices and the skull is mandatory in order to fulfill the high accuracy demands of minimal...
journal_title：Medical engineering & physics
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更新日期：2015-05-01 00:00:00
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journal_title：Medical engineering & physics
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更新日期：2002-03-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
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更新日期：2001-10-01 00:00:00
abstract：:The loads between adjacent vertebrae can be generalised as a single spatial force acting at the intervertebral centre of reaction. The exact position in vivo is unknown. However, in rigid body musculoskeletal models that simulate upright standing, the position is generally assumed to be located at the discs' centres o...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2015.12.003
更新日期：2016-03-01 00:00:00
