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Padaki, V. C.
- Estimation of Clinical Parameters from Non-Invasive Radial Arterial Pulse Pressure Wave Analysis
Abstract Views :165 |
PDF Views:3
Authors
Sakshi Bansal
1,
R. P. Sanghamitraa
2,
Saurav Pratap Singh
1,
Deepa Prabhu
1,
K. Mohanavelu
1,
V. C. Padaki
3
Affiliations
1 Biomedical Technology Group of Defence Bio-Engineering and Electro-Medical Laboratory, Bangalore 560093, IN
2 Anna University, Chennai, IN
3 Defence Bio-Engineering and Electromedical Laboratory, Ministry of Defense, Bangalore, IN
1 Biomedical Technology Group of Defence Bio-Engineering and Electro-Medical Laboratory, Bangalore 560093, IN
2 Anna University, Chennai, IN
3 Defence Bio-Engineering and Electromedical Laboratory, Ministry of Defense, Bangalore, IN
Source
Biometrics and Bioinformatics, Vol 4, No 8 (2012), Pagination: 376-382Abstract
An advanced signal processing algorithm has been implemented for extracting various time domain features and pressure varying wave morphology of a radial arterial pulse pressure wave derived from human wrist. Using these inputs, various clinical parameters like arterial stiffness index, reflection index, Augmentation index, depth of pulse, total pulse duration are estimated which provides clear picture of cardiovascular functioning. A turning point algorithm is incorporated for the detection of systolic peak and diastolic foot which is then followed by a first-derivative algorithm for identifying 2nd & 3rd reflection peaks. The final stage algorithm provides the waveform with 1st, 2nd and 3rd peak voltages which reflects pressure as well as peak index which expresses peaks duration. By continuously monitoring these parameters, a clinician or paramedic can interpret early signs of hypertension, hypo-volemia, arteriosclerosis and high & low blood pressure related abnormalities. Other parameters like stroke volume variation, detection of hemorrhage can also be estimated by further improving signal processing.Keywords
Arterial Stiffness Index, Augmentation Index, Radial Arterial Pulse Pressure, Reflection Index, Turning Point Algorithm.- Tungsten Micro-Needle Array Based Dry Electrodes for Bio-Potential Monitoring
Abstract Views :143 |
PDF Views:0
Authors
Affiliations
1 Defence Bioengineering & Electromedical Laboratory(DEBEL), CV Raman Nagar, Bangalore, IN
2 Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, IN
1 Defence Bioengineering & Electromedical Laboratory(DEBEL), CV Raman Nagar, Bangalore, IN
2 Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, IN
Source
Manufacturing Technology Today, Vol 13, No 12 (2014), Pagination: 17-19Abstract
This paper presents a novel dry electrode based on tungsten needle array for Bio-potential Monitoring. An array of Tungsten Needles were fabricated by the electrochemical etching of tungsten wires using KOH. The fabricated needle array electrode was used for EEG monitoring along with conventional gel electrodes. These electrodes exhibit a good signal with less noise and virtually no motion-artefacts.Keywords
Micro-Needle, Array, Dry-Electrode, Bio-Potential Monitoring.- Ultrasonic Inspection of Austenitic Stainless Steel Weldments—Our Experiences
Abstract Views :234 |
PDF Views:5
Authors
Affiliations
1 Radiometallurgy Laboratory, Reactor Research Centre, Kalpakkam—603 102, IN
1 Radiometallurgy Laboratory, Reactor Research Centre, Kalpakkam—603 102, IN