development of a novel hrv software pdf

... Comparison of novel versus commercial HRV softwares 175 Introduction In this chapter, foetal HRV data derived from F-EXTRACT was compared to that obtained from a commercial HRV software available ... (indicated by the spreading out of Comparison of novel versus commercial HRV softwares 188 Table 11-2: Bland-Altman analysis (mean difference) of time- and frequencydomain variables Timedomain fHR (bpm) ... preferably include recommendations for standardized algorithms for optimal artifact processing as well as for HRV analysis Summary This chapter evaluated the agreement of F-EXTRACT and Nevrokard HRV...

Ngày tải lên: 15/09/2015, 17:11

... remove artifacts in foetal RR intervals, and automated computation of foetal HRV parameters as well as graphical visualization of the foetal HRV power spectra Heart rate variability of healthy ... 9-1 Development of a novel HRV software 149 Table 9-1: A summary of the HRV parameters calculated by F-EXTRACT Parameter Unit Definition HR bpm Mean foetal heart rate mNN msec Mean of all NN ... a novel HRV software 140 CHAPTER DEVELOPMENT OF A NOVEL HRV SOFTWARE Development of a novel HRV software 141 Introduction In collaboration with the Computer Science Department of National University...

Ngày tải lên: 15/09/2015, 17:11

... the mean foetal heart rate, mean RR interval, SDNN, rMSSD and pNN27 Mean heart rate is the mean foetal heart rate measured in beats per minute The mean RR interval is the average duration of all ... to measure foetal cardiac time intervals in normal singleton pregnancies In order to discriminate between normal and pathological changes in the fECG, a database of normal values of cardiac time ... greater than 90% detection rates for each cardiac time interval 4.2 Cardiac time intervals and gestational age Table 7-2 shows the mean cardiac time intervals of P wave duration, PR interval,...

Ngày tải lên: 15/09/2015, 17:11

... sequential activation or depolarization of the right and left atria But because the atria have relatively little muscle, both atria generate a single small P wave Atrial depolarization is indicated ... study again faced the problems of using filters that provided low frequency cut-offs, which distorted the P and T waves A year later, Kaplan and Toyama (Kaplan S and Toyama S, 1958) used a cardiac ... complexes of a single foetus…… 215 List of abbreviations xvi LIST OF ABBREVIATIONS ANOVA Analysis of variance ANS Autonomic nervous system ApEn Approximate entropy AV Atrioventricular bpm beats per...

Ngày tải lên: 15/09/2015, 17:11

... Brusca A, Malliani A Heart rate variability in the early hours of an acute myocardial infarction Am J Cardiol 1996; 77(12): 1037-44 216 Lombardi F Spectral analysis of heart rate variability Card ... 285(4): H1747-52 144 Hayano J, Yamada M, Sakakibara Y, Fujinami T, Yokoyama K, Watanabe Y, Takata K Short- and long-term effects of cigarette smoking on heart rate variability Am J Cardiol 1990; 65(1): ... Pizzinelli P, Sandrone G, Malfatto G, Dell'Orto S, Piccaluga E, et al Power spectral analysis of heart rate and arterial pressure variabilities as a marker of sympatho-vagal interaction in man and conscious...

Ngày tải lên: 15/09/2015, 17:10

... Queensland in Brisbane, Australia, as a Research Fellow and also as the Dean of the College of Engineering in University of Sharjah, UAE B Boashash is the Editor of three books and has written over ... Proceedings of the International Symposium on Signal Processing and Its Applications (ISSPA ’07), Sharjah, United Arab Emirates, February 2007 [20] B Boashash, “Time-Frequency Signal Analysis,” in Advances ... nonseizure: (a) SPWVD; (b) SP; (c) CWD and (d) MBD antialiasing filter with a cutoff at Hz was used to filter, and the filtered signals were sampled at a sampling rate of Hz Finally, the linear trend of the...

Ngày tải lên: 22/06/2014, 20:20

... LF/HF ratio) is an index of the activity ratio of the sympathetic and parasympathetic nervous systems; a high value means the dominance of the sympathetic system and a low value means the dominance ... display wearing polarized glasses, and the projection of the display was adjusted to their head position using a head tracker mounted on the glasses at a 1000-Hz sampling rate A graphics workstation ... investigated with experimental data from a larger number of subjects The averaged LF/HF change data for each subject is shown in Figure A two-way within-group analysis of variance (3 observation...

Ngày tải lên: 19/06/2014, 10:20

... degree of irregularity [40-42] Providing yet another distinct evaluation, scaleinvariant analyses provide a measure of patterns of variation that are present across a range of time scales Given that ... absolute value of clinical variables [24] This complex systems approach of analyzing intervals-in-time or patterns of variation over time has been termed ‘variability analysis’ Variability analysis ... application for the management and treatment of sepsis Early diagnosis of infection with heart rate variability analysis Several studies have examined the usefulness of HRV analysis for early diagnosis...

Ngày tải lên: 13/08/2014, 19:20

... part the anatomical residual variability As a matter of fact, inspection of the residual variance image, that partly reflects the spatial distribution of the inter-individual anatomical variability, ... the angular and superior parietal gyri, in the orbital part of the prefrontal cortex, and in the hippocampal region By contrast, the rate of GM losses appeared marginal in areas such as the lateral ... years) separates two MRI examinations of a longitudinal study, higher age-related effects on brain atrophy rates are found in longitudinal analysis as compared to cross-sectional ones rate of...

Ngày tải lên: 05/03/2014, 21:20

... (padahastasana), half wheel posture (ardhacakrasana), back-stretching posture (paschimottanasana), half lotus posture (ardha padmasana), moon posture (sasankasana), crocodile posture (makrasana), ... breathing (kapalabhati), alternate nostril yoga breathing (anulom-vilom pranayama), exhalation while making a humming sound like a bumble bee (brahmari pranayama) and exhalation with chanting of ... incidence of New Cases of Mental Disorders: a Meta-Analytic review J Nerv Ment Dis 2005, 193:119-125 Janakiramaiah N, Gangadhar BN, Naga Venkatesha Murthy PJ, Harish MG, Subbakrishna DK, Vedamurthachar...

Ngày tải lên: 11/08/2014, 16:22

... of adrenergic amines and flavanones in Citrus aurantium L var amara Phytochem Anal 2002;15:220-225 Pellati F, Benvenuti S, Melegari M, et al Determination of adrenergic agonists from extracts and ... 1187-1194 Sale, C., Harris RC, Delves S, et al Metabolic and physiological effects of ingesting extracts of bitter orange, green tea and guarana at rest and during treadmill walking in overweight males ... was administered in the form of the patented bitter orange extract Advantra Z® which contained 60 % of this active material Naringin and hesperidin were 96 % pure All test materials were obtained...

Ngày tải lên: 25/10/2012, 11:04

... Three analyses of the data were performed using x analysis of variance (ANOVA) For the first data analysis, treatment and time were the independent factors using all 23 subjects The second analysis ... and nine as high caffeine users, employing the breakpoint of 150 mg caffeine per day to separate the two groups Statistical significance was established at p

Ngày tải lên: 25/10/2012, 11:10

... Statistics Canada 2001 Census Analysis Series – Profile of the Canadian Population by Age and Sex: Canada Ages Catalogue: 96F0030XIE2001002, Ottawa Available on-line at http://www12.statcan.ca/english/census01/Products/Analytic/companion/age/contents.cfm ... http://www12.statcan.ca/english/census01/Products/Analytic/companion/age/contents.cfm (accessed Jan 27, 2003) Statistics Canada Participation and Activity Limitation Survey, 2001 A Profile of Disability in Canada, 2001 – Tables Catalogue ... keep track of ongoing research in Canada, the US and internationally Specific searches were carried out to locate and access research conducted by Canadian researchers, and an attempt was made to...

Ngày tải lên: 14/02/2014, 06:20

... T9 6A F10 0A V12 6A F12 8A S12 9A E13 0A V13 1A E13 2A R13 3A R13 5A F13 6A I13 7A I13 8A N13 9A D14 0A W14 1A V14 2A K14 3A T14 4A H14 5A T14 6A K14 7A M14 9A N15 2A E28 3A E28 5A K32 5A K32 7A PAI-1stab PAI-1stab(E28 5A) ... SDS/PAGE analysis After 24 h, the fraction of molecules behaving as a substrate for uPA decreased approximately twofold for PAI-1(V12 6A) , PAI-1(F10 0A) , PAI-1(F12 8A) and PAI-1(W14 1A) with a concomitant ... rate of latency transition expressed as the functional half-life, t½ The averages and standard deviations for at least three independent measurements are given for each variant PAI-1 variant Activity...

Ngày tải lên: 20/02/2014, 11:20

... years of age, female and male) participated in Exp A Sixteen younger (22,4 ± 1.6 years of age, female and 10 male) and sixteen older subjects (66.1 ± 3.7 years of age, female and 10 male) participated ... visual tasks Available literature argues against gaze shifting ability as the sole explanation, since substantial ARD was observed even when the non-walking task required visual imagery rather ... each subject, and each task combination taskα + taskβ, the mean dualtask costs as Page of (page number not for citation purposes) Journal of NeuroEngineering and Rehabilitation 2008, 5:27 walking...

Ngày tải lên: 19/06/2014, 08:20

... US National Aeronautics and Space Administration, Washington DC Muraki S, Ehara Y, Yamasaki M: Cardiovascular responses at the onset of passive leg cycle exercise in paraplegics with spinal cord ... ventricle, which leads to an activation of the vagus nerve and a reflexive decrease of sympathetic activity The vagus activity leads to bradycardia and vasodilatation: the Bezold-Jarisch-Reflex [36] ... increase of heart rate was larger in the group tested on the traditional tilt table A correlation between heart rate and appearance of syncope was described [16,36] An increase in heart rate >...

Ngày tải lên: 19/06/2014, 10:20