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This paper presented a method of quantifying blood glucose level using pocket vector network analyzer by measuring the skin S-11 figure of merits or parameters. The researcher uses a spiral microstrip antenna, a pocket vector network analyzer, and an SAS JMP statistical tool. Two female subjects with different ages, have 20kgs difference in weight, a body mass index difference of 4.78 and have a difference...
The aim of this paper is to introduce the recent research and commercial developments in minimally and non-invasive blood glucose monitoring techniques.
Keloids are benign dermal disease that are characterized by the collagen deposition and growth beyond the boundaries of the original wound position. Many studies on keloids have showed that the density of blood vessel within keloids is higher than normal skin, which is a determinant of the physiological conditions of the tissue and also important for understanding the pathogenesis and radiotherapy...
Keloid is a kind of benign dermal lesion that caused by the collagen deposition and growth beyond the boundaries of the original wound margin. Many studies have reported that the density of blood vessel within keloid is higher than normal skin. Therefore, the density of blood vessel is the potential determinant for understanding the pathogenesis of keloids. However, to date, the techniques for extracting...
Placing the lamps of a phototherapy equipment at a suitable distance from the neonate, and scheduling the treatments to be applied depending on the degree of hyperbilirubinemia in the patient, are a problem in large hospitals that do not have enough personnel specialized in pediatrics, which causes that these equipment is used improperly or not used. In this project we have implemented a prototype...
This paper deals with a diffraction type problem for equations of complex, radiative-conductive, heat transfer in a four-layer medium, modeling skin. The radiative heat transfer is described using the so-called diffusion P1 approximation, and Fresnel matching conditions are imposed at the layer interfaces. Thus, a problem of conjugation is under consideration. The unique solvability of this highly...
This paper presents a non-contact measurement method for the evaluation of human blood pressure. A reflection type optical imaging system was developed to interactively capture the human palmar back images with illumination of dual light sources. By a continuous measurement, the variation of oxygen saturation in palmar digital vein could be monitored. The fluctuation frequency of the oxygen saturation...
Estimation of hemoglobin is important to diagnose anaemia which is a grave public health problem in developing and in other less developed countries. Hemoglobin, which normally is present within red blood cells, is the compound responsible for coloring blood red. Therefore redness of blood and consequently of skin, is a measure of hemoglobin concentration in blood. We utilize redness of palm to estimate...
In this paper, we present a system that is a combination of spatial and temporal processing to emphasize the subtle changes in a video. Images and videos contain valuable information about the changes that evolve over time. There is a lot of information in videos, which is not visible by naked eye, and we need to magnify these small changes to study its behavior. The human eye has limited spatial-temporal...
Blood flow signals can characterize a notable feature correlating to melanoma, the most serious type of skin cancer. In this study, blood flow signals are decomposed into their instituent components in terms of intrinsic mode functions (IMFs) using the empirical mode decomposition (EMD). In particular, only the first two IMF components of blood flow signals ae examined. The blood flow data analyzed...
This Cervical pathologies are frequently occuring diseases and may affect women's quality of life in many ways. These pathologies are curable with early detection and with a following suitable treatment plans. There are some screening methods to detect the cervix's abnormal regions like Pap smear, biopsy and colposcopy. Recently, studies about polarized imaging show additional methods to support diagnosis...
In this presentation a mathematical model has been designed to study the effect of Hematocrit level on blood flow in an overlapping stenosed artery using Wilburn-Schneck model. The constitutive equations are solved analytically using the boundary conditions to obtain expressions for different parameters such as flow rate, resistance to flow and skin-friction. An extensive quantitative analysis has...
The compact remote photoplethysmography device for monitoring of blood volume pulsations from human skin were developed. The prototype device comprises electronics board with twelve circullary oriented bright near-infrared LED illuminators, which are precisely controlled, high-speed video camera and battery charging circuit. Device was tested in laboratory and could be used for non-contact monitoring...
This paper discusses the design of a new actuator mechanism for the e-Mosquito, an autonomous wearable blood glucose monitoring system with autonomous insertion of single-use needles. The actuator converts tensile force from a contracting shape memory alloy wire into non-linear extension of a needle from a casing and allows both needle and casing to be replaced. It has fewer disposable parts, no fixed...
The dependency of blood perfusion on caffeine doses and the effects on different rhythmic activities were investigated by spectral components of skin blood perfusion signal. The skin blood perfusion on human forearm middle finger tip was recorded by laser Doppler flowmetry technique at both before and immediately after the consumption of caffeine dose. Different caffeine doses contained different...
This paper presents the capacity and SNR (Signal to Noise Ratio) calculation of nano-sensors propagating model inside the human body. The model based on the calculation of path losses and noise level for THz (Terahertz) wave propagation. In the model the channel capacity and SNR are also studied according to transmit power of nano-sensor for future nano-communications inside the human body. According...
Pulse transit time (PTT) has been widely studied as an index of blood pressure (BP) changes. In recent years, some prototypes of PTT-based wearable BP measurement devices have been developed, which can relieve users from the discomfort caused by the inflating cuff used in auscultatory and oscillometric BP measurement techniques. However, in the common practice for PTT detection, multi-site sensor...
Camera-based measurement of the blood volume pulse via non-contact, imaging photoplethysmography is a very popular approach for measuring pulse rate using a remote imaging sensor. Comparatively less attention has been paid to the usefulness of the method for measuring features of pulse rate variability, and even less focus has been put on the accuracy of any cardiac activity feature that can be achieved...
Infrared thermography (IRT), or thermal imaging has long been proposed as a novel method in early detection of breast cancer. Most of the work done was through the detection of abnormal hotspot, or asymmetries in a thermal texture map. However, the surface temperature may not appear symmetric even for a healthy breast because of variations in blood supply and individual differences. In this paper,...
Measuring blood perfusion is important in medical care as an indicator of injury and disease. However, currently available devices to measure blood perfusion like laser Doppler flowmetry are bulky, expensive, and cumbersome to use. An alternative low-cost and portable camera-based blood perfusion measurement system has recently been proposed, but such camera-only system produces noisy low-resolution...
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