Author: John Mulindi
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Common Challenges of EEG Analysis
Though EEG signal detection provides a key indicator for detection of neurological status and disorders, its biomedical application is limited. This is because of the complicated nature of EEG signal and the complexities regarding the interpretation of the signals. Some of the challenges of EEG analysis are discussed as follows: Artifacts The recordings of physiological…
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Key Features of Modern ECG Systems
Modern diagnostic and monitoring ECG acquisition and analysis systems are equipped with modern-day computer technology. ECG monitoring devices constitute an important part of the patient monitoring systems. Patient monitoring systems are used to continuously or intermittently measure the vital signs (ECG, heart rate, pulse rate, blood pressure and temperature) and perform automatic analysis on them.…
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The Principle of Immunoassay Biosensor
The principle of immunoassay sensor operation is based on the observation of ligand-binding reaction products between a target analyte and a highly specific binding reagent. The important component of an immunosensor is the biological recognition element, which normally consists of antibodies or antibody fragments. Immunological methods offer remarkable selectivity and sensitivity through the process of…
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Basic Features of Intravascular Fiber Optic Blood Gas Sensor
Intra-arterial blood gas sensors usually use a single or double fiber configuration. Typically, the matrix containing the indicator is attached to the end of the optical fiber. Because the solubility of O2 and CO2 gases, as well as the optical properties of the sensing chemistry itself, is affected by the temperature variations, fiber optic intravascular…
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How Arterial Tonometer is used for Blood Pressure Measurement
The arterial tonometer is an instrument used to measure arterial blood pressure. It differs from sphygmomanometer in that, rather than measuring the pressure at greatest contraction and greatest heart dilation (systolic and diastolic) it provides continuous measurement throughout the heart’s pumping cycle. Normally, the instrument sensor is placed over a superficial artery; the radial artery…
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Basic Features of Teleradiology
Teleradiology is a subcategory of telemedicine operation focusing in remote diagnosis of medical images. Teleradiology uses computer, display and telecommunication technologies for radiologists to make remote diagnosis from radiological images generated at distant examination sites. The diagnostic report is sent to the examination site where a primary physician can provide suitable treatments to the patient…
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The Measurement of Ultraviolet Radiation in Biomedical Field
The measurement of ultraviolet radiation in biomedical field may be categorized into three classes: In general, physical devices measure power, whereas chemical and biological systems measure energy. The common radiometric terminology is shown in the table below: Table 1.0 Radiometric Terms Term Unit Wavelength Nanometer (nm) Radiant energy Joule (J) Radiant flux Watt (W) Radiant…