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Heart diseases associated with living conditions, such as coronary heart disease and hypertension are becoming more and more complex. If heart condition didn't get long-term and real-time monitoring and diagnosis, it may induce sudden heart disease. As the heart auscultation is one of the most fundamental ways to evaluate the heart functions, a stethoscope can be used to auscultate respiratory sounds...
The pupillary light reflex (PLR) test is the method of examining the immediate reaction of the pupil by light stimuli, and dysfunctions in autonomic nervous system can be evaluated quickly and easily through this method. Existing pupillary light reflex examinations utilize medical penlights to provide light stimuli at the pupil of the examined person, directly observe and assess the changes in the...
PET/CT system reduces the scanning time and provides an anatomical image because it realizes a CT-based attenuation corrected image without using an isotope, such as 68Ge or 137Cs, in the attenuation correcting method due to the recent technological development. On the other hand, artifacts are generated in a CT image by dental materials, which affect the attenuation corrected PET image. Against this...
For some patients with joint illnesses such as rheumarthritis or varus deformity, the total knee arthroplasty (TKA) procedures are performed. However, when inserting metal cutting guide for the procedures, due to the femoral shaft bowing, complications such as the cortex of the femoral shaft damages or secondary fractures can be caused. If the central coordinate value of the femoral shaft is known,...
18F-FDG PET/CT is a useful modality for identifying high-glucose-consuming cells, such as cancer cells by the glucose metabolism of FDG. FDG is taken up by cancer and inflammatory cells but occasionally, there is some FDG uptake on normal tissues as a result of their individual physiological characteristics. In particular, in fertile females, unusual FDG uptake in the breast changes according to the...
This paper analyzed the effect of a smartphone application in Taekwondo Academy. The iPhone app was self-developed to display Taekwondo education contents for Poomsae training. From the viewpoint of education, reregistration and recommendation effect, it showed statistically significant difference in 196 trainee sample survey. Therefore, the research suggest that the use of smartphone technology in...
Auscultation of heart sound and breathing sound in anesthesia is very important, because it can provide the information of patient's cardiorespiratory system. In operating room, anesthesiologists use esophageal stethoscope, which is a device to measure heart sound or respiratory sound by inserting a catheter into the esophagus close to heart. It is not only low cost and very simple to use for anesthesiologists,...
In our study, we developed a mobile waist-mounted device which can monitor the subject's acceleration signal and detect the fall events in real-time with high accuracy and automatically send an emergency message to a remote server via CDMA module. When fall event happens, the system also generates an alarm sound at 50Hz to alarm other people until a subject can sit up or stand up. A Kionix KXM52-1050...
The purpose of this study is to measure both ECG and BCG(Ballistocariograph) signal of a subject on moving or resting wheelchair and detect the heart rate and respiratory rate and transmit an event message to remote server on emergent situation.
Exercise is very important element for successful aging. Among many sports events, Korea is the suzerain of Taekwondo. When competing (Taekwondo Free Fighting) after learning Poomse as basic movements and inuring them, people compete with movements depending on situation. Among Poomses of Taekwondo, Taegeuk Poomse consists of very basic movements from 1 Jang to 8 Jang and they are for inuring to body...
In this study, cellular phone network based portable ECG device was developed and three experiments were performed to evaluate the accuracy, reliability and operability, applicability during daily life of the developed device. First, ECG signals were measured using the developed device and Biopac device (reference device) during sitting and marking time and compared to verify the accuracy of R-R intervals...
The present study is about a biometric system for a wheelchair, which can measure both bio-signal (ECG-Electrocardiogram, BCG-Ballistocardiogram) and kinetic signal (acceleration) simultaneously and send the data to a remote medical server. The equipment was developed with the object of building a system that measures the bio-signal and kinetic signal of a subject who is moving or at rest on a wheelchair...
The present study proposed methods of preventing diseases, controlling chronic degenerative diseases and promoting health, which are major concerns of sports medicine. In the proposed methods, we analyzed wu-shu trainees' physical activities scientifically and quantitatively. The amount of physical activities was measured using SenseWear-PRO2-armband developed by body-medai company. The armband includes...
The concept of ubiquitous healthcare service, which emerged as one of measures to solve healthcare problems in aged society, means that patients can receive services such as prevention, diagnosis, therapy and prognosis management at any time and in any place with the help of advanced information and communication technology. This service requires not only biomedical digital assistant that can monitor...
The present study purposed to measure the BCG (Ballistocardiogram) of subjects on a wheelchair using a noncontact electro-mechanical film sensor (EMFi sensor) and detect the respiratory rate from BCG in real-time while the subjects are moving. In order to measure wirelessly the BCG of subjects moving on a wheelchair, we made a seat-type noncontact EMFi sensor and developed a transmitter and a receiver...
Conductive rubber material was molded in a belt shape to incorporate with patient's pants for continuous monitoring of breathing activity. Dimension changes of the abdomen resulted in corresponding resistance changes, which successfully monitored respiration. When the standard air flow rate was simultaneously measured by a pneumotachometer, mean relative error was approximately 15%, presumably due...
Alternative site capillary blood sampling may be a useful way to reduce pain during skin puncture. The present study made quantitative measurement of pain and blood volume for both finger and arm sampling in 58 normal female subjects. Visual pain measures resulted in 1/5~1/3 pain scores for arm relative to finger sampling. Deeper puncture thru skin on arm caused more pain to some degree. 399/464 samples...
The fusion technology of small sensor and wireless communication was followed by various application examples of the embedded system, where the social infrastructural facilities and ecological environment were wirelessly monitored. In the paper, new monitoring and classifying method of human motion context was proposed by using 2-axial MEMS accelerometer and 916 MHz short range data communication...
Diabetes is an incurable chronic disease with the prevalence high in developed countries. The number of patients in Korea is also on a steady increase. Patients have to self-manage their blood glucose level by daily test and insulin injection. Therefore, it is very important to assist them in self-management procedure. In this study, PDA(personal digital assistant) based PDMS (personal diabetes management...
Respiratory tubes with the length of 35 mm and the diameters of 10, 15, and 20 mm were specially made and both the static(PS) and dynamic (PD) pressures were simultaneously measured for steady flow rates ranging 1-12 l/sec. Least squares analysis resulted successful fitting of PS and PD data with quadratic equations with correlation coefficients higher than 0.99(P<0.0001). The spirometric measurement...
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