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Studies in Skin Perfusion Dynamics - Photoplethysmography and its Applications in Medical Diagnostics (Hardcover, 1st ed. 2021)
Loot Price: R4,070
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Studies in Skin Perfusion Dynamics - Photoplethysmography and its Applications in Medical Diagnostics (Hardcover, 1st ed. 2021)
Series: Biological and Medical Physics, Biomedical Engineering
Expected to ship within 15 - 20 working days
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This 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.
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