호흡으로 인한 움직임이 큰 종양의 방사선치료 시 Abdomen and Chest Motion Control Device (ABCHES)의 유용성 평가

조윤진,전미진,신동봉,김종대,김세준,하진숙,임정호,이익재,Cho, Yoon-Jin,Jeon, Mi-Jin,Shin, Dong-Bong,Kim, Jong-Dae,Kim, Sei-Joon,Ha, Jin-Sook,Im, Jung-Ho,Lee, Ik-Jae 대한방사선치료학회 2012 대한방사선치료학회지 Vol.24 No.2

목 적: 호흡에 의한 장기의 움직임이 큰 흉부와 상복부에 위치한 종양의 토모테라피 치료 시 움직임을 최소화하기 위해 노력으로 호흡 조절 시스템을 적용하지만 여러 제약이 따라 이용이 제한적이었다. 이에 본 연구에서는 토모테라피 치료 시 효율적인 호흡 조절을 위한 ABCHES system의 적용 가능성 및 유용성을 평가해 보고자 하였다. 대상 및 방법: 본원에서 흉부와 상복부에 위치한 폐와 간, 쓸개, 췌장에 토모테라피 치료를 받은 5명의 환자를 대상으로 하였다. 모든 환자에게 ABCHES를 사용하여 자유 호흡법과 얕은 호흡법을 각각 교육한 후 치료 계획용 4D-CT를 실시하여 총 10개의 4차원 단층촬영영상을 획득 하였다. 한명의 전공의는 각 영상의 최대 흡기, 최대 호기, 호흡의 중간 위상, Average CT이미지에서 육안적으로 보이는 종양과 주변 정상장기를 그렸으며 MIM에서 선량체적 히스토그램과 종양의 움직임에 대한 정량적 분석을 실시하였다. 자유 호흡과 얕은 호흡 상태에서 장기의 움직임은 총 여섯 방향에서 평가하였고 주변 장기에 조사된 방사선량을 비교하였다. 결 과: 5명의 환자 중 호흡 조절 장치인 ABCHES를 이용하여 자유 호흡과 얕은 호흡 상태에서 장기의 움직임이 5 mm 이상 움직인 호흡은 자유 호흡이 12번인 반면 얕은 호흡에서는 2번으로 감소되었다. 선량 체적 히스토그램을 통한 비교 분석 결과 두 호흡간 치료 체적과 종양조직 주변 정상 장기 2개의 평균 선량 값과 정상조직에 방사선이 조사되는 용적에서 ABCHES를 이용한 얕은 호흡이 자유 호흡에 비해 모두 낮은 치료 결과 값을 확인 할 수 있었다. 결 론: ABCHES를 사용하여 규칙적이고 정확한 얕은 호흡을 함으로써 토모테리피 치료 시 유용성과 호흡에 따른 종양의 움직임을 최소화 할 수 있음을 확인 하였고, 주변 정상조직에 불필요하게 조사되는 방사선을 감소시킬 수 있었다. Purpose: It is essential to minimize the respiratory-induced motion of involved organs in the Tomotherapy for tumor located in the chest and abdominal region. However, the application of breathing control system to Tomotherapy is limited. This study was aimed to investigate the possible application of the ABCHES system and its efficacy as a means of breathing control in the tomotherapy treatment. Materials and Methods: Five subjects who were treated with a Hi-Art Tomotherapy system for lung, liver, gallbladder and pancreatic tumors. All patients undertook trained on two breathing methodes using an ABCHES, free breathing methode and shallow breathing methode. When the patients could carry out the breathing control, 4D-CT scan was a total of 10 4D tomographic images were acquired. A radiologist resident manually drew the tumor region, including surrounding nomal organs, on each of CT images at the inhalation phase, the exhalation phase and the 40% phase (mid-inhalation) and average CT image. Those CT images were then exported to the Tomotherapy planning station. Data exported from the Tomotherapy planning station was analyzed to quantify characteristics of dose-volume histograms and motion of tumors. Organ motions under free breathing and shallow breathing were examined six directions, respectively. Radiation exposure to the surrounding organs were also measured and compared. Results: Organ motion is in the six directions with more than a 5 mm displacement. A total of 12 Organ motions occurred during free breathing while organ motions decreased to 2 times during shallow breathing under the use of Abches. Based on the quantitative analysis of the dose-volume histograms shallow breathing showed lower resulting values, compared to free breathing, in every measure. That is, treatment volume, the dose of radiation to the tumor and two surrounding normal organs (mean doses), the volume of healthy tissue exposed to radiation were lower at the shallow breathing state. Conclusion: This study proposes that the use of ABCHES is effective for the Tomotherapy treatment as it makes shortness of breathing easy for patients. Respiratory-induced tumor motion is minimized, and radiation exposure to surrounding normal tissues is also reduced as a result.

고성능 액체 크로마토그래피에 의한 기능성 헤테로 고리 화합물의 분리(II)

조윤진,이영철,이광필,박긍식,Cho, Yun Jin,Lee, Young Cheol,Lee, Kwang-PiII,Park, Keung-Shik 한국분석과학회 1998 분석과학 Vol.11 No.4

헤테로 고리 화합물인 isoquinoline과 외부치환체로서 $COOCH_3$, CN 및 $CH_3$ 작용기들이 치환된 화합물들의 혼합물을 정상 및 역상법으로 분리 한 결과, 이동상의 종류에 따라 용리순서에 용매화 효과가 나타났다. 또한, 헤테로 고리 화합물 내부의 방향족성이 없는 2-methylindoline과 방향족성이 있는 2-methylindole, 그리고 헤테로 원자가 질소와 산소인 benzoxazole과 질소와 황인 benzothiazole의 머무름거동은 정상 액체 크로마토그래피의 경우 시료 분자와 충진제의 흡착 표면과의 흡착력으로 설명할 수 있었고, 역상 액체 크로마토그래피의 경우는 시료와 정지상과의 소수성 상호작용 등으로 설명할 수 있었다. Normal phase or reversed phase liquid chromatographic separation of isoquinoline of heterocyclic compounds and structural isomers of external substituents, $COOCH_3$, CN and $CH_3$ has been carried out by using several different columns and various mobile phases. From this results, the order of elution of heterocyclic compounds appears to depend on the solvent effect with kinds of mobile phases. Retention mechanism of normal phase system for 2-methylindoline, 2-methylindole, benzoxazole and benzothiazole was also studied depending on adsorption strength between solute and stationary phase of column. However, retention factors of reversed phase system were found on hydrophobic interaction with solvophobic effect.

상담 석사 과정에 대한 석사생들의 교육 경험 및 만족도 분석

조윤진 ( Yoon Jin Cho ),유성경 ( Sung Kyung Yoo ),박소현 ( So Hyun Park ),윤민지 ( Min Ji Yoon ),장윤진 ( Yoon Jin Chang ) 서강대학교 학생생활상담연구소 2010 人間理解 Vol.31 No.2

본 연구는 국내 상담 석사 교육과정에서 제공되는 교육활동의 실태와 내용을 상담 석사생들의 관점에서 확인하고, 그들의 교육 경험과 만족도를 탐색하기 위하여 수행되었다. 이를 위해 상담관련 전공이 개설되어 있는 일반 및 특수대학원, 전문대학원 석사과정에 재학 중이거나 졸업한지 3년 이내인 상담 전공생 139명을 대상으로 설문조사를 실시하였다. 상담 석사과정에서 제공되는 교육활동을 크게 수업, 실습, 연구, 진로지도의 측면에서 살펴본 결과, 우리나라 상담석사과정 교육은 수업을 중심으로 이루어지고 있으며 상대적으로 실습 훈련이나 연구 활동, 진로지도가 충분히 이루어지고 있지 않았다. 이에 따라 상담 석사생들은 개인적으로 실습훈련 할 곳을 찾아야 하는 어려움을 겪고 있으며, 지도감독이나 관리가 이루어지는 체계적인 실습 훈련을 받고 있지는 못하는 것으로 확인되었다. 상담 교육과 상담 현장을 효과적으로 연계할 수 있는 제도 마련을 위해 미국의 대학원 교과과정에서 제공되고 있는 상담 실습 훈련 및 상담 현장과 대학원 간의 실습 연계제도에 대하여 살펴보고 우리나라 상담관련 전공 대학원 석사과정에서 보완되어야 할 실습훈련, 연구 활동 및 진로 지도의 측면에 대하여 제언하였다. The present study examined South Korean graduate students` educational experiences and satisfaction in the master`s level counseling programs. A total of 139 graduate students reported their experiences according to four areas (i.e., lecture, practicum, research, and career service). Result showed that the graduate students perceived their graduate programs mainly focus on lectures but relatively lack practicum and research opportunities. Also, the students perceived that career services are very limited. Furthermore, the participants reported that they had difficulties with finding practicum sites and supervision on their own, which may raise a serious concern with receiving less-than-optimal practicum and supervision. Finally, the authors introduced a training model adopted in the United States to show how to integrate graduate programs with counseling centers.

3D 동작분석법을 이용한 골프 베이스 레이어 패턴개발 연구

조윤진(Cho Youn-Jin),김경희(Kim Kyung-Hee) 한복문화학회 2020 韓服文化 Vol.23 No.1

The golf is gradually popularized as an exercise that could be enjoyed by everyone regardless of age, sex, and build, and the golf wear market is continuously growing in the annual average for 10% or more. Thus, this study targeted middle-aged men in their 40s-50s, showing the most active demand for golf. Also, out of people with golf experience for ten years or more, this study selected five people falling under the error range of standard figure in 40s-50s. After selecting a person who was the closest to the standard figure out of those five subjects, this study conducted 3D scanning with a type of STD and five types of golf swing motions, and then calculated changes in body surface for each motion through the process of flattening. This study suggested the final base layer pattern by comparing the brainwave analysis on the second experimental wear and four types of comparison wears after modifying/complementing the pattern through the evaluation of motion suitability for the first experimental wear and four types of comparison wears. As the selection of those five subjects was based on the standard figure in accordance with the 7th Human Body Size Survey Report by the Korean Agency for Technology and Standards, it would be needed to be careful to apply it to every figure. If the follow-up researches multilaterally analyze the figures in 40s-50s, the methods to design the base layer pattern for each figure could be suggested.

문화적 차이가 냉장고 사용행태에 미치는 영향에 관한 연구 : 한국과 미국의 냉장고 사용 행태 비교 관찰을 중심으로

조윤진(Yun Jin Cho),김정하(Jung Ha Kim) 한국HCI학회 2006 한국HCI학회 학술대회 Vol.2006 No.2

간세포암 환자에서 ABCHES와 복부압박장비의 적용한 호흡동조방사선 치료의 유용성 비교

조윤진(Yoonjin Cho),변상준(Sangjoon Byun),김영재(Youngjae Kim) 한국방사선학회 2012 한국방사선학회 논문지 Vol.6 No.5

호흡조절 방사선치료는 호흡이나 장기의 움직임을 극복하기 위하여 환자의 호흡주기를 획득하여 종양조직에 처방선량을 부여하며 동시에 주위 정상조직에는 적은 방사선량을 부여하는 방법이다. ABCHES를 이용한 호흡조절 방사선 치료는 호흡을 얕은 호흡으로 유도하며 종양조직의 움직임을 최소화 하는데 도움을 줄 수 있는 부속 장비이다. 한편 복부 압박 기구는 환자의 복부에 압박을 실시함으로 호흡에 제한을 두는 치료보조용 기구이다. 본 논문에서는 ABCHES를 단독으로 사용한 것과 ABCHES와 복부압박 장비를 이용하여 간세포암 환자의 종양의 움직임을 정량적으로 분석하고 그에 해당하는 치료효과를 선량체적곡선으로 분석하려 하였다. ABCHES를 사용한 경우와 ABCHES와 복부압박기구를 동시에 사용한 경우를 비교해본 결과 상하 방향과 앞뒤 방향 그리고 좌우 방향으로 각각 평균 1.0 ㎜, 0.2 ㎜, 0.2 ㎜ 정도로 그 움직임을 제한 할 수 있음을 확인할 수 있었다. 체적 감소율 또한 ABCHES를 사용한 경우 HPTV와 LPTV가 체적의 변화율을 16 ± 2% 정도로 줄일 수 있었고, LPTV의 경우 15.8 ± 0.8%의 체적을 제어할 수 있었다. 선량체적 곡선을 분석한 경우 ABCHES만을 사용한 경우보다 ABCHES와 복부압박 기구를 동시에 사용한 경우가 종양조직에는 처방선량에 가까운 선량값을 보였으며 정상조직인 동측 폐, 콩팥, 정상 간조직에는 보다 적은 선량이 부여된 것을 확인 할 수 있었다. 본 논문에 결과 ABCHES를 단독으로 사용하는 것보다 복부압박기구와 ABCHES를 동시에 사용한 경우가 종양 및 정상조직에 부여된 선량 기준에 적합하다고 판명 되었고, 향후 ABCHES와 복부압박기구에 대한 제한점 즉, 복부의 압박강도에 따른 환자의 불편감, 호흡주기가 정확하지 않은 환자들에게 적용하여야 하는 방법 등이 추후에 논의 되어야 할 것으로 사료된다. 4D-Radiation Therapy is the optimal treatment to track moving organs(tumor) and give the appropriate prescription dose to tumor and low radiation dose to normal tissue surrounding tumor volume. The ABCHES is a 4DRT devices maintaining shallow breathing to patients. It allows the tumor’s movement was minimize. Meanwhile, Abdominal compression device is limited the breath compressing abdomen on patients. In this paper we will quantitative analysis the movement of tumor on only ABCHES versus ABCHES with Abdomal compression device and Analysis tumor dose and normal tissue’s dose by Dose Volume Histogram on two parts. The result of Comparision ABCHES and ABCHES with Abdominal compression device, SI(Superior-Inferior) direction, AP(Anterior-Posterior) direction and LR(Left-Right) direction was limited 1.0 ㎜, 0.2 ㎜, 0.2 ㎜(average). and also reduction rate of voluume in HPTV was 16 ± 2%, and LPTV was 15.8 ± 0.8% under only using ABCHES and ABCHES with compression. The analysis dose volume histogram was more radiation dose in ABCHES and abdominal compression device than only using ABCHES, and less normal tissue-ipsilateral lung, whole lung, kidney-dose in ABCHES and abdominal compression device than only using ABCHES. The overall analysis was ABCHES with abdominal compression better than only using ABCHES method. In hereafter it will be studies that limitation of ABCHES and abdomonal compression device. In other words, patient’s discomfort on compression intensity, method of application on patient with inaccurate respiration cycle.

프라이빗 쇼핑몰의 패션제품 구매의도 연구

조윤진(Yun Jin Cho),서상우(Sang Woo Seo) 한국복식학회 2013 服飾 Vol.63 No.5

As an emerging e-retail model, private shopping malls are transforming the traditional retail systems· These malls are expanding in Europe and the United States and have recently arrived in Korea· This study investigates the relationships among the usefulness of SNS (Social Networking Sites), shopping values, and purchase intentions for fashion products in private shopping malls· The analysis was based on a survey of consumers, aged between 20 and 39, who recently purchased fashion products from a private shopping mall· Two hundred samples were used in the final analysis· The study employed descriptive statistics, Cronbach`s alpha, confirmatory factor analysis, and structural equation modeling· The relationships among usefulness of SNS, shopping values, and purchase intentions was verified through structural equation modeling· More specifically, the usefulness of SNS significantly influenced the utilitarian shopping values as well as purchase intention of fashion products· Utilitarian shopping values, in turn, significantly influenced hedonic shopping values and purchase intention· Further, hedonic shopping values had a significant effect on purchase intention.

시각정보의 존재여부에 따른 7~8세 발달성 협응장애아동의 정적자세 조절

조윤진(Yun Jin Cho),정현채(Hyun Chae Chung) 한국사회체육학회 2009 한국사회체육학회지 Vol.0 No.37

The study investigated static postural control in childern with developmental coordination disorder(DCD) in conditions with vision and without vision. Six children with DCD and 6 matched control children in the age of 7-8 years participated in this study. There were six task conditions with and without vision while standing on one or two legs. Three dependent measure were assessed to examine differences in the static balance control. There were the excursion, velocity, and area of the center of pressure(COP). The results exhibited that children with DCD showed a greate degree of sway as compared to TD children. When standing on two leg with eye closed, the anterio-posterior direction of COP excursion was larger for DCD group than TD group and. it was statistically significant. Also, the group differences were more prominent when they were standing on dominant leg with their eye closed. The general conclusion may be drawn from this study was that children with DCD suffer from inefficient static postural control only in the difficult or absence of vision case. This could be a cause in delayed motor development in these children.

보문 : 패션 소설커머스의 사이트 특성과 SNS 주관적 규범이 소셜커머스 태도 및 패션제품 구매의도에 미치는 영향

조윤진 ( Yun Jin Cho ),양희순 ( Hee Soon Yang ) 한국의류학회 2012 한국의류학회지 Vol.36 No.11

This study investigates the effect of site characteristics in fashion social commerce and SNS subjective norm on the attitude of consumers towards social commerce and their purchase intentions for fashion products. In addition, this study tests consumer responses through a comparsion of a group purchase mall versus a private mall. Respondents are limited to consumers aged 20 to 29 who have recently purchased fa-shion products through social commerce over the last month. Four hundred samples were used for the final analysis. Descriptive statistics, Cronbach`s alphas, a confirmatory factor analysis, and a stuructural equation mo-deling analysis were conducted. The results are as follows. Product value, convenience and SNS subjective norms without trust significantly influenced the consumer attitude towards social commerce, and the attitude of consumers positively influenced the purchase intentions of fashion products. In the group purchase small, only convenience affected toe attitude of consumers: in the private mall,product value, convenience and SNS subjective norm had an effect on the attitude of consumers. In addition, the SNS subjective norm po-sitively influenced purchase intentions directly as well as indirectly. Social commerce ought to offer pro-duct value and create a simple and convenient design to raise the purchase intentions of fashion products: in addition, they should use SNS functions to inform consumers of social commerce. It is imperative to im-plement different marketing strategies according to social commerce type.

보문 : 패션마케팅 영역에서의 비교문화적 연구의 경향

조윤진 ( Yun Jin Cho ),양수진 ( Su Zin Yang ),김은영 ( Eun Young Kim ),추호정 ( Ho Jung Choo ) 韓國衣類學會 2006 한국의류학회지 Vol.30 No.8