LEADER 04762nam 22005775 450 001 9910484829903321 005 20251204111537.0 010 $a981-15-5449-8 024 7 $a10.1007/978-981-15-5449-0 035 $a(CKB)4100000011728530 035 $a(DE-He213)978-981-15-5449-0 035 $a(MiAaPQ)EBC6460929 035 $a(PPN)253250811 035 $a(EXLCZ)994100000011728530 100 $a20210120d2021 u| 0 101 0 $aeng 135 $aurnn|008mamaa 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aStudies in Skin Perfusion Dynamics $ePhotoplethysmography and its Applications in Medical Diagnostics /$fedited by Vladimir Blazek, Jagadeesh Kumar V., Steffen Leonhardt, Mandavilli Mukunda Rao 205 $a1st ed. 2021. 210 1$aSingapore :$cSpringer Nature Singapore :$cImprint: Springer,$d2021. 215 $a1 online resource (XV, 238 p. 138 illus., 90 illus. in color.) 225 1 $aBiological and Medical Physics, Biomedical Engineering,$x2197-5647 300 $aIncludes index. 311 08$a981-15-5447-1 327 $aRhythmical phenomena in dermal perfusion in vivo ? Historical re-marks and modern measuring strategies using noninvasive optoelec-tronic sensor concepts -- Influence of controlled breathing (Pranayama) on dermal perfusion -- Optical sensing strategies for skin oxygen saturation monitoring -- Low frequency blood volume rhythms in the skin perfusion obtained by optical sensing -- Synergetic interpretation of patterned vasomotion activity in micro vascular perfusion: application of objective recording of subjective responses to pain -- A self-organized rhythm in peripheral effectors: the intermediary rhythm appears as 0.15 Hz-Band activity -- Photon-tissue interaction modelled by Monte Carlo method for optimized optoelectronic sensor concepts -- Frontiers in contactless space- and time-resolved skin perfusion detec-tion using Photoplethysmography Imaging (PPGI) -- Some clinical applications of functional PPGI perfusion mapping in derma-tology -- Motion artefact reduction in PPG signal. 330 $aThis book talks about photoplethysmography (PPG) techniques based on computer-aided data processing. In particular, it presents the results of a co-operative Indo-German project on the topic between Indian Institute of Technology at Chennai and RWTH Aachen University. Measuring system design, experimental details and some preliminary results obtained so far within the framework of this project are presented here. From the investigations carried out so far using the PPG sensors in conjunction with breathing sensors, it has been possible to monitor the 0.125 to 0.15 Hz rhythms in the arterial volumetric changes and to study the influence of breathing on them. These rhythms, which according to medical experts have relevance to psychosomatic conditions e.g. stress or relaxation, can also be addressed to by ancient Indian practices like yoga and meditation. This book presents the results of studying the effects of Indian relaxation techniques like pranayama, meditation, etc. in comparison to western relaxation techniques like autogenic training. So far it has been established that the Indian techniques of relaxation like yoga and meditation are very effective in generating low frequency rhythms in the skin perfusion as monitored by optical sensors. According to medical experts, these low frequency rhythms have a very important bearing on the human physiology and have potential therapeutic implications. This book is meant to provide an overview of the current state-of-knowledge and encourage the next generation of scientists/engineers to carry this work forward, especially on the novel PPG application fields that are of growing importance like pain and stress assessment, detection of peripheral venous saturation and local arterio-venous oxygen consumption as well as contactless space resolved skin perfusion studies with modern camera based PPG technology. 410 0$aBiological and Medical Physics, Biomedical Engineering,$x2197-5647 606 $aBiophysics 606 $aBiomedical engineering 606 $aRadiology 606 $aBiophysics 606 $aBiomedical Engineering and Bioengineering 606 $aRadiology 615 0$aBiophysics. 615 0$aBiomedical engineering. 615 0$aRadiology. 615 14$aBiophysics. 615 24$aBiomedical Engineering and Bioengineering. 615 24$aRadiology. 676 $a612.1028 702 $aBlaz?ek$b Vladimi?r 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910484829903321 996 $aStudies in skin perfusion dynamics$92830452 997 $aUNINA