• Progress in Medical Physics
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• v.5 no.1
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• pp.13-24
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• 1994

In the conventional thermograph systems, expensive infrared lens systems are usually used for accomodating infrared beams to high speed optical scanners. In this study, a cheap focussing mirror with a two dimensional scanner are used for the development of medical infrared thermograph system in which high speed imaging is not critically required. The infrared thermograph system can be used for two dimensional imaging of human skin temperature by measuring the amount of infrared lights radiating from it. It has been experimentally proven that the accuracy of temperature measurements using the developed system is under 0.1$^{\circ}C$ with image matrix size of 256${\times}$240, and imaging time of 4 seconds.

• Journal of Korea Society of Industrial Information Systems
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• v.20 no.1
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• pp.57-62
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• 2015

Recently, thermography camera have been using for body-temperature monitoring. We report on fabrication of prototype thermography camera using the chalcogenide-glass lens and the camera test by analysis of thermal image. In this work, it was found out that thermography camera discerned body-temperature between 20 and $50^{\circ}C$ with noise equivalent temperature difference(NETD) of 87.7mK. It is confirmed that thermography camera using the chalcogenide-glass lens is applicable to the body-temperature monitoring system.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.397-399
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• 2021

한의사의 복진을 모사하는 진단기기와 이를 이용하여 질환과 변증을 분류하는 알고리즘을 개발하는 연구가 진행되고 있다. 본 연구에서 적외선 체열 영상과 접촉식 온도계로부터 구성되는 복부 영역별 체열 영상 시스템을 제시하였고, 복부 영역의 절대 온도를 보정하는 방법을 살펴보았다. 접촉식 온도계를 활용해 추가로 복부표면 온도를 측정하였고, 동시에 열화상 카메라로도 영상을 촬영하여, 동일위치에서 열화상 영상의 온도값과 접촉식 체온계의 온도값을 비교해 전체 열화상 영상을 보정하였다. ICC 값이 0.96으로 나와 높은 재현성을 보였다.

• Journal of Veterinary Clinics
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• v.22 no.4
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• pp.302-308
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• 2005

This study was performed to examine the absolute skin temperature and temperature difference $({\Delta}T)$ between the left and the right, the upper and the lower parts on the back of dog and to investigate the clinical usefulness of infrared thermography as diagnostic or prognostic aid on experimental spinal cord compression by using Digital Infrared Imaging System. In normal dogs, symmetrical and contouring patterns were observed in thermogram. The skin temperature difference was not significant between the left and the right, the upper and the lower parts on the back. In spinal cord compressed dog, there was symmetrical temperature reduction pattern around lesion. Patterns of ${\Delta}T$ between thoracic and lumbar portions were remarkable and showed the tendency to return to normal after 4 weeks of operation. It is considered that infrared thermography is a useful diagnostic and prognostic aid for spinal cord injury in dogs.

• The Journal of the Korean life insurance medical association
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• v.12
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• pp.1-8
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• 1993

• Journal of radiological science and technology
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• v.42 no.5
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• pp.365-371
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• 2019

We have developed and applied a diagnostic Multi-Leaf Collimator (MLC) to optimized the X-ray field in medical imaging and the usefulness evaluated through the fusion of infrared image and X-ray image acquired by infrared camera. The hand and skull radiography with multi-leaf collimator(MLC) showed significant area dose reductions of 22.9% and 31.3% compared to ARC and leakage dose was compliant with KS A 4732. Also scattering doses of 50 cm and 100 cm showed a significant decrease to confirm the usefulness of MLC. It was confirmed that the fusion of infrared images with an adjustable degree of transparency was possible in the X-ray images. Therefore, fusion of anatomical information with physiological convergence is expected to contribute and improvement of diagnostic ability. In addition, the feasibility of convergence X-ray imaging and DITI devices and the possibility of driving MLC with infrared images were confirmed.

• Journal of the Korean Society of Radiology
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• v.11 no.4
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• pp.273-278
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• 2017

Among 45 patients of herniation of intervertebral disc with $L_4$ to $L_5$ herniation, who underwent infrared thermography, the number of female was larger than male and the age of 50s was highest. From the results measured from the distribution table, we have confirmed that there was no significant difference depending on sex and age (p> 0.05). The region of the highest ROI temperature for patients with $L_4-L_5$ intervertebral disc prolapse was the back of the posterior right tibia, and followed by the back of the left shin bone-below the front right knee-below the front left knee. There was a significant difference depending on the measured site. The average ROI temperature for patients was $30.30{\pm}0.50$ whereas that for normal persons was $31.20{\pm}0.58$, yielding the temperature difference of $0.66{\pm}0.59$ between the two groups. The ROI of patients was lower than $31.20{\pm}0.58$ (p <0.05) because the significance of the sample, which has been obtained from the results of a sample t-test, was less than 0.05 (p <0.05). From further researches, it may necessary to develope the methodology for correcting data regarding thermal environment and, in addition, to develope a new thermal index based on it. Therefore, we can confirm that pre-treatment for infrared thermography is very important in order to minimize the procedure for correcting data. It is required that radiologists who inspect disc herniations should carefully observe and consider the patients during their measurements.

• Journal of Oriental Medical Thermology
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• v.8 no.1
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• pp.13-17
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• 2010

Purpose : This study is to the recent trends of clinical trial using infrared thermography and to review its application in medicine. Methods : We searched for papers which had used infrared thermography in Medicine within 5 years, using English. Results : A total of 23 papers were but 8 were found, but 8 were not related to non-invasive infrared thermography. The other 15 papers were clinical trials about the effect of acupuncture and therapeutic massage, evaluation of post-hepatic neuralgia, sleep disorder, and regional circulation. Conclusion : These results suggest that infrared thermography can be used as a reliable and helpful method in many clinical trials.

• Journal of Chest Surgery
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• v.37 no.1
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• pp.64-71
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• 2004

Background: Video-assisted sympathicotomy is a safe and effective method for the treatment of essential hyperhidrosis with immediate symptomatic improvement. However, this is offset by the occurrence of a high rate of side-effects, such as embarrassing compensatory hyperhidrosis. Therefore, by comparing and assessing the relationship between temperature change measured by DITI (digital infrared thermographic imaging) and clinical results according to the level and extent of sympathicotomy in essential hyperhidrosis. we tried to obtain a more precisely and objectively, the distribution and degree of compensatory sweating by DITI and also for ascertaining the clinical usefulness. Material and Method: From January 2000 to June 2002, the thoracoscopic sympathicotomy was performed in 28 patients suffering from essential hyperhidrosis in Dept. of Thoracic and Cardiovascular Surgery, Wonkwang University Hospital. The patients were divided into four groups, Group I: patients having undergone T2 sympathicotomy, Group II: patients having undergone T3 sympathicotomy, Group III: patients having undergone T3,4 sympathicotomy, and Group IV: patients having undergone T2,3,4 sympathicotomy. The parameters were composed of the satisfaction rate of treatment, the degree of compensatory and plantar sweating, and temperature changes of entire body measured by DITI Result: There was no difference in age and follow-up period among the groups. All of the treated patients obtained satisfactory alleviation of essential hyperhidrosis in immediate postoperative period. However, the rate of long-term satisfaction were 85.8%, 85.8%, 42.9%, and 28.6% in group I, II, III, and IV (p<0.05). More than embarrassing compensatory sweating was present in 14.2%, 14.2%, 57.1%, 71.4% in group I, II, III, and IV (p<0.05) In regard to plantar sweating, decrease in sweating was expressed in each of four groups, but was not significant between groups. An apparent increase of temperature measured by DITI indicated sufficient denervation and predicted long-lasting relief of essential hyperhidrosis and also decrease in temperature of trunk and lower extremity by DITI had correlated well with postoperative satisfaction, and also postoperative compensatory sweating. Conclusion: We suggested that the incidence and degree of compensatory sweating was closely related to the site and the extent of thoracic sympathicotomy. Resection of the lower interganglionic neural fiber of the second thoracic sympathetic ganglion on the third rib is the most practical and minimally invasive treatment than other surgical methods. We were also to anticipated the distribution and degree of compensatory sweating by DITI precisely and objectively and for ascertaining the clinical usefulness.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2010.06a
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• pp.282-282
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• 2010

LED Device was designed of electronic circuits of electrical power part for used Pspice student version and used Infrared LED lamps of load part. LED was used Computerized Electronic Medical Infrared Thermographic Imaging System for body surface Investigation of variable Body thermal asymmetry. It was knowledge body thermal Asymmetry of body surface and quantity body surface of electromagnetic wave to inflow electrical power part.