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교차편광 촬영술(Cross Polarization Photographic Technique)를 이용한 부항요법의 배수혈 피부 색소 침착 변화 측정 평가
김수병 ( Soo Byeong Kim ),정병조 ( Byungjo Jung ),신태민 ( Tae Min Shin ),이용흠 ( Yong Heum Lee ) 경락경혈학회 2013 Korean Journal of Acupuncture Vol.30 No.4
Objectives: Skin color deformation by cupping has been widely used as a diagnostic parameter in Traditional Korean Medicine (TKM). Skin color deformation such as ecchymoses and purpura is induced by local vacuum in a suction cup. Since existing studies have relied on a visual diagnostic method, there is a need to use the quantitative measurement method. Methods: We conducted an analysis of cross-polarization photographic images to assess the changes in skin color deformation. The skin color variation was analyzed using L*a*b* space and the skin erythema index (E.I.). The meridian theory in TKM indicates that the condition of primary internal organs is closely related to the skin color deformation at special acupoints. Before conducting these studies, it is necessary to evaluate whether or not skin color deformation is influenced by muscle condition. Hence, we applied cupping at BL13, BL15, BL18, BL20 and BL23 at Bladder Meridian (BL) and measured blood lactate at every acupoint. Results: We confirmed the high system measurement accuracy, and observed the diverse skin color deformations. Moreover, we confirmed that the L*, a* and E.I. had not changed after 40 minutes(p>0.05). The distribution of blood lactate levels at each part was observed differently. Blood lactate level and skin color deformation at each part was independent of each other. Conclusions: The negative pressure produced by the suction cup induces a reduction in the volumetric fraction of melanosomes and subsequent reduction in epidermal thickness. The relationship between variations of tissue and skin properties and skin color deformation degree must be investigated prior to considering the relationship between internal organ dysfunction and skin color deformation.
가변편광과 광학배율을 기반으로 한 피부 확대경을 이용한 피부주름 측정
배영우(Youngwoo Bae),정병조(Byungjo Jung) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.10
The clinical characteristics of photodamaged skin, such as coarse and fine wrinkle are not accurately evaluable with previous methods. Public awareness for wrinkle treatment and prevention which rely on proper assessment and evaluation of the underlying skin changes has been increased as the population ages. In this paper, we suggest an in-vivo method and instrument that allow us to acquire a wrinkle-enhanced image to improve the accuracy of Quantitative and Qualitative analysis for skin wrinkle. The method used involved white LED illumination and photography through polarizing filters. Finally, the polarized light photography yields an accurate and evaluable parameter of photodamaged skin, especially fine and coarse wrinkle.
경골 손상 치료에서의 침습형 저출력 레이저 치료법 및 효과
이상엽,황동현,김한성,정병조,Lee, Sangyeob,Hwang, Donghyun,Kim, Hansung,Jung, Byungjo 대한의용생체공학회 2016 의공학회지 Vol.37 No.4
Tibial defect, or fracture is very routine musculoskeletal case which brings fully uncomfortable and painful situations to patient. Moreover, it has long hospitalization period because of its risk of non-union. There are many studies using ultrasound, vibration, and laser for bone regeneration to figure out fast bone healing. Among them, Low Level Laser Therapy (LLLT) is already known that it is very easy to treat and may have positive effect for bone regeneration. However, LLLT has uncertain energy dose because of scattering and absorption of laser in tissue. In this study, we used interstitial LLLT to treat tibial defect in animal study. The Interstitial LLLT can overcome some limitations caused by laser scattering or absorption in tissue medium. The results were evaluated using u-CT which can calculate X-ray attenuation coefficient and bone volume of bone defect area. These results showed that interstitial LLLT may affect fast bone healing process in early phase.
여창민(Changmin Yeo),손태윤(Taeyoon Son),정병조(Byungjo Jung) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
Laser has been applied in various diagnostic and therapeutic medical fields. For last few decades, medical low level laser devices have been introduced in market, but they have limitations which cannot convey enough energy to deep layer of tissues for diagnostic or therapeutic purposes. To address the issue, there have been many studies of using physical and chemical methods; it is one of ways to apply negative or positive pressure to tissue. However, it is hard to apply desired pressure on tissues continuously when practical laser devices are used. In this study, we introduce a low-level laser probe which allows maintain pressure on skin tissue. Consequently, we arc confident that the pressure probe for low-level laser treatment should be a useful tool in order to deliver sufficient energy for practical uses.
다모드 디지털 사진 영상 시스템을 이용한 피부 손상의 진단적 분석에 대한 연구 : DermaVision-Pro
배영우(Youngwoo Bae),김은지(Eunji Kim),정병조(Byungjo Jung) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
Digital photographic analysis is currently considered as a routine procedure in clinic because periodic follow-up examinations can provide meaningful information for diagnosis. However, it is impractical to separately evaluate all suspicious lesions with conventional digital photographic systems, which have inconsistent characteristics of the environmental conditions. To address the issue, it is necessary for total diagnostic evaluation in clinic to integrate conventional systems. Previously, a multimodal digital photographic imaging system, which provides a conventional color image, parallel and cross polarization color images and a fluorescent color image, was developed for objective evaluation of facial skin lesions. Based on our previous study, we introduce a commercial product, "Derma Vision PRO," for routine use in clinical application in dermatology. We characterize the system and describe the image analysis methods for objective evaluation of skin lesions. In order to demonstrate the validity of the system in dermatology, sample images were obtained from subjects with various skin disorders, and image analysis methods were applied for objective evaluation of those lesions.