scholarly journals Non-Contact Monitoring of Heart and Lung Activity by Magnetic Induction Measurement

10.14311/1021 ◽  
2008 ◽  
Vol 48 (3) ◽  
Author(s):  
M. Steffen ◽  
S. Leonhardt
Keyword(s):  
Magnetic Induction ◽  
Impedance Cardiography ◽  
State Of The Art ◽  
Skin Irritation ◽  
Clinical Applications ◽  
Simple Test ◽  
Test Setup ◽  
First Results ◽  
Electrocardiogram Ecg ◽  
Induction Measurement

In many clinical applications, the monitoring of heart and lung activity is of vital importance. State-of-the-art monitoring involves the use of electrodes or other contact based sensors (electrocardiogram (ECG), impedance cardiography (ICG), pulse oximetry or equivalent). With the equipment that is used, side effects like skin irritation, difficult application or additional cabling may occur. In contrast, this paper describes a method for non-contact monitoring of heart and lung activity, which is solely based on magnetic induction. This method allows simultaneous monitoring of heart and lung activity, and has the potential of an integrated application in a personal healthcare scenario. To illustrate the performance, a simple test-setup has been developed and the first results are presented here (some of which have been previously presented on the Poster 2008 [10]). 

scholarly journals Traditional uses, phytochemistry, pharmacology and toxicity of Arisaema (Areaceae): a review

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Heena Ali ◽  
Ubaid Yaqoob
Keyword(s):  
Skin Irritation ◽  
Clinical Applications ◽  
Human Populations ◽  
Main Body ◽  
Anticancer Activities ◽  
Medicinal Uses ◽  
The World ◽  
Different Types ◽  
Tropical Areas ◽  
Medicinal Properties

Abstract Background The genus Arisaema (Areaceae), popularly known as cobra lilies and jack in pulpit is mainly found in temperate to tropical areas of all continents except South America, Europe and Australia and contain about more than 250 species. Arisaema genus is being used by the different folks of human populations for medicinal as well as food purposes. Arisaema plants are used for the treatment of different types of diseases. There have been several attempts to highlight different aspects of genus Arisaema by describing it in terms of phytochemistry and medicinal uses. The present study is, however, an attempt to put together all the former data available related to the phytochemistry and medicinal uses of genus Arisaema. Main body The phytochemicals of the plant include alkaloids, phenols, terpenes, flavonoids, lectins, saponins, glycosides, triterpenoids, stigmasterols, n-alkanes, n-alkanols sitosterols, campesterol, oxalates, coumarins, tannins etc. Moreover, the properties such as antioxidant, antifungal, antibacterial, insecticidal, antimicrobial, cytotoxic, nematocidal, antiallergic antitumour and anticancer activities are also shown by the plants belonging to genus Arisaema. Arisaema plants have been traditionally used to treat various ailments such as resolving phlegm, dampness, and to treat asthma, bronchitis, cold, cough, and laryngitis etc. It has been found that there are several species which are toxic by nature. The development of clinical applications of arisaematis rhizomes had been seriously constrained due to its toxic properties like, mouth and lingua pain, even respiration slowing and suffocation, mucous membrane and skin irritation etc. and this toxicity of arisaematis rhizomes is due to raphide components. Conclusions The collection of data available on the phytochemistry of genus Arisaema is not sufficient as further work is required to do on phytochemical and medicinal basis. The data available on phytochemistry and medicinal properties of the plants belonging to genus Arisaema throws light on various species of Arisaema which are medicinally important and have been exploited to treat different types of diseases in the world.

scholarly journals Novel clinical applications of state-of-the-art multi-slice computed tomography

2009 ◽  
Vol 25 (S2) ◽  
pp. 241-254 ◽  
Author(s):  
J. D. Schuijf ◽  
V. Delgado ◽  
J. M. van Werkhoven ◽  
F. R. de Graaf ◽  
J. E. van Velzen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
State Of The Art ◽  
Clinical Applications

scholarly journals Erratum to: State-of-the-art MRI techniques in neuroradiology: principles, pitfalls, and clinical applications

2015 ◽  
Vol 57 (10) ◽  
pp. 1075-1075 ◽  
Author(s):  
Magalie Viallon ◽  
Victor Cuvinciuc ◽  
Benedicte Delattre ◽  
Laura Merlini ◽  
Isabelle Barnaure-Nachbar ◽  
...  
Keyword(s):  
State Of The Art ◽  
Clinical Applications

scholarly journals A Review and Comparison of the State-of-the-Art Techniques for Atrial Fibrillation Detection and Skin Hydration

2021 ◽  
Vol 2 ◽  
Author(s):  
Sidrah Liaqat ◽  
Kia Dashtipour ◽  
Adnan Zahid ◽  
Kamran Arshad ◽  
Sana Ullah Jan ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
State Of The Art ◽  
The State ◽  
Skin Hydration ◽  
Hydration Level ◽  
Independent Review ◽  
Intelligent Models ◽  
Electrocardiogram Ecg ◽  
Fast Heart Rate ◽  
Art Techniques

Atrial fibrillation (AF) is one of the most common types of cardiac arrhythmia, with a prevalence of 1–2% in the community, increasing the risk of stroke and myocardial infarction. Early detection of AF, typically causing an irregular and abnormally fast heart rate, can help reduce the risk of strokes that are more common among older people. Intelligent models capable of automatic detection of AF in its earliest possible stages can improve the early diagnosis and treatment. Luckily, this can be made possible with the information about the heart's rhythm and electrical activity provided through electrocardiogram (ECG) and the decision-making machine learning-based autonomous models. In addition, AF has a direct impact on the skin hydration level and, hence, can be used as a measure for detection. In this paper, we present an independent review along with a comparative analysis of the state-of-the-art techniques proposed for AF detection using ECG and skin hydration levels. This paper also highlights the effects of AF on skin hydration level that is missing in most of the previous studies.

scholarly journals Clinical applications of infrared and Raman spectroscopy: state of play and future challenges

The Analyst ◽  
2018 ◽  
Vol 143 (8) ◽  
pp. 1735-1757 ◽  
Author(s):  
Matthew J. Baker ◽  
Hugh J. Byrne ◽  
John Chalmers ◽  
Peter Gardner ◽  
Royston Goodacre ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Infrared Absorption ◽  
State Of The Art ◽  
Clinical Applications ◽  
The State ◽  
Infrared And Raman Spectroscopy ◽  
Future Challenges

This review examines the state-of-the-art of clinical applications of infrared absorption and Raman spectroscopy, outstanding challenges, and progress towards translation.

Pulmonary Functional Imaging: Part 2—State-of-the-Art Clinical Applications and Opportunities for Improved Patient Care

Radiology ◽  
2021 ◽  
pp. 204033
Author(s):  
Warren B. Gefter ◽  
Kyung Soo Lee ◽  
Mark L. Schiebler ◽  
Grace Parraga ◽  
Joon Beom Seo ◽  
...  
Keyword(s):  
Patient Care ◽  
Functional Imaging ◽  
State Of The Art ◽  
Clinical Applications

A Global Survey of Geospace Electrons with eVlasiator: First Results

2021 ◽  
Author(s):  
Markku Alho ◽  
Markus Battarbee ◽  
Yann Pfau-Kempf ◽  
Urs Ganse ◽  
Lucile Turc ◽  
...  
Keyword(s):  
Solar Wind ◽  
Spatial Resolution ◽  
Kinetic Models ◽  
Electron Distribution ◽  
State Of The Art ◽  
Distribution Functions ◽  
Upper Atmosphere ◽  
Electron Precipitation ◽  
Gas Dynamic ◽  
First Results

<div> <p>Models of the geospace plasma environment have been proceeding towards more realistic descriptions of the solar wind—magnetosphere interaction, from gas-dynamic to MHD and hybrid ion-kinetic models such as the state-of-the-art Vlasiator model. Advances in computational capabilities have enabled global simulations of detailed physics, but the electron scale has so far been out of reach in a truly global setting. </p> </div><div> <p>In this work we present results from eVlasiator, an offshoot of the Vlasiator model, showing first results from a global 2D+3V kinetic electron geospace simulation. Despite truncation of some electron physics and use of ion-scale spatial resolution, we show that realistic electron distribution functions are obtainable within the magnetosphere and describe these in relation to MMS observations. Electron precipitation to the upper atmosphere from these velocity distributions is estimated.</p> </div>

scholarly journals Robust T-End Detection via T-End Signal Quality Index and Optimal Shrinkage

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7052
Author(s):  
Pei-Chun Su ◽  
Elsayed Z. Soliman ◽  
Hau-Tieng Wu
Keyword(s):  
Quality Index ◽  
Signal To Noise Ratio ◽  
Clinical Applications ◽  
Noise Robustness ◽  
Signal Quality ◽  
New Techniques ◽  
Detection Algorithms ◽  
Signal Quality Index ◽  
The Mean ◽  
Electrocardiogram Ecg

An automatic accurate T-wave end (T-end) annotation for the electrocardiogram (ECG) has several important clinical applications. While there have been several algorithms proposed, their performance is usually deteriorated when the signal is noisy. Therefore, we need new techniques to support the noise robustness in T-end detection. We propose a new algorithm based on the signal quality index (SQI) for T-end, coined as tSQI, and the optimal shrinkage (OS). For segments with low tSQI, the OS is applied to enhance the signal-to-noise ratio (SNR). We validated the proposed method using eleven short-term ECG recordings from QT database available at Physionet, as well as four 14-day ECG recordings which were visually annotated at a central ECG core laboratory. We evaluated the correlation between the real-world signal quality for T-end and tSQI, and the robustness of proposed algorithm to various additive noises of different types and SNR’s. The performance of proposed algorithm on arrhythmic signals was also illustrated on MITDB arrhythmic database. The labeled signal quality is well captured by tSQI, and the proposed OS denoising help stabilize existing T-end detection algorithms under noisy situations by making the mean of detection errors decrease. Even when applied to ECGs with arrhythmia, the proposed algorithm still performed well if proper metric is applied. We proposed a new T-end annotation algorithm. The efficiency and accuracy of our algorithm makes it a good fit for clinical applications and large ECG databases. This study is limited by the small size of annotated datasets.

scholarly journals Bibliographic review on the state of the art of strontium and zinc based regenerative therapies. Recent developments and clinical applications

2019 ◽  
Vol 7 (12) ◽  
pp. 1974-1985 ◽  
Author(s):  
Mirta Jiménez ◽  
Cristina Abradelo ◽  
Julio San Román ◽  
Luis Rojo
Keyword(s):  
Musculoskeletal Disorders ◽  
State Of The Art ◽  
Clinical Applications ◽  
The State ◽  
Tissue Formation ◽  
Promoting Effect ◽  
Recent Developments ◽  
Regenerative Therapies

This review brings up to date the state of the art of strontium and zinc based regenerative therapies, both having a promoting effect on tissue formation and a role inhibiting resorption in musculoskeletal disorders.

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