표면위치표지자를 적용한 정위적 부분유방방사선치료의 유용성 평가

김종열,정동민,김세영,유현종,최정환,박효국,백종걸,이상규,조정희,Kim, JongYeol,Jung, DongMin,Kim, SeYoung,Yoo, HyunJong,Choi, JungHoan,Park, HyoKuk,Baek, JongGeol,Lee, SangKyu,Cho, JeongHee 대한방사선치료학회 2021 대한방사선치료학회지 Vol.33 No.-

Purpose: The goal of this study is to evaluate usefulness of noninvasive method instead of previous inserting Fiducial Marker Method when performing Stereotactic Partial Breast Irradiation in CyberKnife. Material and methods: For consistency of Imaging Center, we evaluated both oblique images at angle 45 and 315 acquired from 2D Simulator and CyberKnife quantitatively through dice similarity coefficient. Also, location reproducibility of Surface Fiducial Marker was analyzed from 2D Simulator, treatment plans and CyberKinfe images by using 8 Fiducial Markers made of gold attached to ATOM Phantom based on our institution's protocols. Results: The results of the estimated consistency were 0.87 and 0.9 at the oblique angle 45 and 315, respectively. For location consistency of Surface Fiducial Markers, values of horizontal vertical direction of left breast were Superior/Inferior 0.3 mm, Left/Right -0.3 mm, Anterior/Posterior 0.4 mm, and the values of rotational direction were Roll 0.3 °, Pitch 0.2 °, Yaw 0.4 °. The values of horizontal vertical direction of right breast were Superior/Inferior -0.1 mm, Left/Right -0.1 mm, Anterior/Posterior -0.1 mm, and the values of rotational direction were Roll 0.2°, Pitch 0.1°, Yaw 0.1°. Conclusions: We expect that the protocols used by Surface Fiducial Markers when performing Stereotactic Partial Breast Irradiation in CyberKnife will provide protection from pain and cut expenses for treatment and reduce treatment errors and make treatment more accurate by suggesting treatment protocols based on high consistency of Imaging Center and reproducibility of Fiducial Markers. 목 적: 사이버나이프를 이용한 정위적 부분유방방사선치료(Stereotactic Partial Breast Irradiation) 시 기존의 침습적인 위치표지자(Fiducial Marker) 삽입 방식이 아닌 비침습방식에 대한 유용성을 평가 하고자 한다. 대상 및 방법: 본 연구를 위한 영상 중심(Imaging Center)의 일치도는 2D모의치료기와 사이버나이프의 양사방향(Both oblique, 45 °, 315 °) 영상 획득 후 다이스 유사 계수를 통해 정량적으로 평가하였다. 표면위치표지자의 위치 재현성은 본원 프로토콜을 기반으로 ATOM Phantom 표면에 금 재질의 위치표지자 8개를 부착하고 2D모의치료와 치료계획, 사이버나이프 영상을 분석하여 평가 하였다. 결 과: 영상 중심의 일치도 평가결과는 양사방향(45 °, 315 °)에서 각각 0.87, 0.9 였다. 표면위치표지자의 재현성 평가 결과 좌측 유방은 수평수직방향 Superior/Inferior 0.3 mm, Left/Right -0.3 mm, Anterior/Posterior 0.4 mm, 회전 방향 Roll 0.3 °, Pitch 0.2 °, Yaw 0.4 ° 로 나타났다. 우측 유방은 수평수직방향 Superior/Inferior -0.1 mm, Left/Right -0.1 mm, Anterior/Posterior -0.1 mm 회전 방향 Roll 0.2 °, Pitch 0.1 °, Yaw 0.1 ° 로 나타났다. 결 론: 사이버나이프를 이용한 정위적 부분유방암방사선치료 시 표면위치표지자의 비침습 트로토콜을 기반으로 통증 및 감염 등의 예방과 전처치 시간을 줄이고 환자의 경제적 부담을 경감 할 수 있었으며, 영상 중심의 높은 일치도 및 위치표지자의 재현성을 바탕으로 치료에 유용할 것으로 사료된다.

중국 자동차 시장의 현황과 중국 진출의 성공전략

김종열(Jongyeol Kim),최민철(Mincheol Choi),박준철(Junchul Park) 동아대학교 경영문제연구소 2008 經營論叢 Vol.29 No.-

This study researched automobile markets in China and suggested successful strategies to advance into Chinese car markets. Chinese economy has been going through. huge progress since its opening to foreign capital at 1978. Since then production of vehicles in China sharply increased from 372 thousand to 5.707 million. Chinese government announced the car industry as a national strategic industry. In 1994, with new industry policy for car makers and joining in WTO, Chinese auto mobile market took third place only behind U S and Japan. For car makers, Chinese market is promising land. So is it to Korean car makers. It was inevitable for Korean car makers to confront with difficulties along dispersing of part factories, instability of the market economy, and unfavorable location for plants because of overcrowded existed companies. This research aimed to study how Korean car makers would successfully advance into Chinese market Studies of previous researches made four categorized strategies: industrial relations between labor and company, production, marketing, and general strategies. Relying on these four categorical strategies, Korean companies would have, and will take primary places on magnificent Chinese markets.

병인변증과 요골동맥 맥상파의 특성 파악을 위한 탐색적 관찰 연구

김지혜(Jihye Kim),유하나(Hana Yu),구본초(Boncho Ku),김현호(Hyunho Kim),김종열(Jongyeol Kim),전영주(Youngju Jeon) 한의병리학회 2014 동의생리병리학회지 Vol.28 No.6

설진 기기의 시스템 구성 및 진단 방법 개발

김근호(Kim Keunho),도준형(Do Junhyeong),유현희(Ryu Hyunhee),김종열(Kim Jongyeol) 한국한의학연구원 2008 한국한의학연구원논문집 Vol.14 No.3

A tongue shows physiological and clinicopathological changes of inner organs. Visual inspection of a tongue is not only convenient but also non-invasive. To develop an automatic tongue diagnosis system for an objective and standardized diagnosis, the separation of the tongue area from a facial image and the detection of coatings, spots and cracks are inevitable but difficult since the colors of a tongue, lips, and skin in a mouth as well as those of tongue furs and body are similar. The proposed method includes preprocessing with down-sampling and edge enhancement, over-segmentation, detecting positions with a local minimum over shading from the structure of a tongue, and correcting local minima or detecting edge with color difference. The proposed method produces the region of a segmented tongue, and then decomposes the color components of the region into hue, saturation and brightness, resulting in classifying the regions of tongue furs(coatings) into kinds of coatings and substance and segmenting them. Spots are detected by using local maxima and the variation of saturation, and cracks are searched by using local minima and the directivity of dark areas in brightness. The results illustrate the segmented region with effective information, excluding a non-tongue region and also give us accurate discrimination of coatings and the precise detection of spots and cracks. It can be used to make an objective and standardized diagnosis for an u-Healthcare system as well as a home care system.

국내 전자저널에 수록된 월경통 평가지표 및 변증에 대한 한의학적 임상연구 고찰

김지혜(Jihye Kim),김종열(Jongyeol Kim),전영주(Youngju Jeon) 한의병리학회 2015 동의생리병리학회지 Vol.29 No.5

사상체질 임상정보 분석을 위한 웹 기반의 의사결정 나무 프로그램 개발

진희정(Jin Heejeong),김명근(Kim Myounggeun),김종열(Kim Jongyeol) 한국한의학연구원 2008 한국한의학연구원논문집 Vol.14 No.3

Sasanag Contitution Medicine(SCM) is the traditional medicine theory based on constitutional medicine in Korea. It is most important that a personal SCM type is determined accurately ahead of applying any Sasang treatments. For this, many researches have been studied to diagnose the SCM type using constitutional clinical data. The decision tree is a tree-structured data-mining methodology. Recently, in the Korean traditional medicine society, there have been several efforts to find diagnosing tools using the decision tree method. So, we developed a decision tree program based on web for analyzing constitutional clinical information. It can use various clinical data as input data, offer filtering function to select clinical data to be used. We can find useful factor to be influential on SCM types using this program.

목소리 특성의 주관적 평가와 음성 특징과의 상관관계 기초연구

한성만(Han Sungman),김상범(Kim Sangbeom),김종열(Kim Jongyeol),권철홍(Kwon Chulhong) 한국음성학회 2011 말소리와 음성과학 Vol.3 No.4

Sasang constitution medicine utilizes voice characteristics to diagnose a person"s constitution. To classify Sasang constitutional groups using speech information technology, this study aims at establishing the relationship between Sasang constitutional groups and their corresponding voice characteristics by investigating various speech feature variables. The speech variables include features related to speech source and vocal tract filter. Experimental results show that statistically significant correlation between voice characteristics and some speech feature variables is observed.

설진 시스템 개발 및 재현성 평가

전영주(Jeon Youngju),김근호(Kim Keunho),도준형(Do Junhyeong),유현희(Ryu Hyunhee),김종열(Kim Jongyeol) 한국한의학연구원 2008 한국한의학연구원논문집 Vol.14 No.3

The tongue diagnosis is a diagnostic method in the oriental medicine that uses shape, substance, coating, and movement of the tongue to determine the condition of health and disease characteristics in human. Since this information, however, could be affected by subjective sense and visual information, it is difficult to obtain the objective and reproducible results. This research aims at building a reproducible tongue diagnosis system using color chart that is attached close to the face contact region. The picture of color chart is taken simultaneously with a tongue and applied to color revision. The system, in addition, is focused on providing a clear tongue image through securing a sufficient photographing distance with a surface coating mirror. The lightning part which can suppress the reflection by sputum in maximum is implemented for the objectification and quantification of the tongue diagnosis system. The face contact region is designed for consideration of a testee's convenience. To evaluate the reproducibility of the system, the CVs (coefficient of variance, %) of L*, a* and b* of red, green and blue regions in color chart are calculated, respectively. The results of all CVs shows that the tongue diagnosis system is reliable and those consequences contribute to the objectification and quantification of the tongue diagnosis system.

사상체질 약재 정보 시스템 구축

진희정(Jin Heejeong),김명근(Kim Myounggeun),김효정(Kim Hyogung),유영법(Yu Youngbeob),김종열(Kim Jongyeol) 한국한의학연구원 2008 한국한의학연구원논문집 Vol.14 No.1

Although the theory of Sasang Consititution is widely used in oriental clinic, there is only conceptual definition about the constitution not technical definition which is consented by every experts. In the present, the effect and different responses of constitutional medicines is the most widely accepted criteria among technical definitions. However, these medicines consist of several herbs which are included specific constitution. So, it is hard to define the characters about the Sasang Constitution through analysis of the medicines. In this paper, we collected the various information about the constitutional herbs, and constructed database and web application for accessing this information. It is useful and can be basis for finding the characteristics of constitutional medicines.

음성기술을 이용한 정신피로 측정에 관한 타당성 연구

송승규(Song, Seungkyu),김종열(Kim, Jongyeol),장준수(Jang, Junsu),권철홍(Kwon, Chulhong) 한국음성학회 2013 말소리와 음성과학 Vol.5 No.1

This study proposes a method to measure mental fatigue using speech technology, which has not been used in previous research and is easier than existing complex and difficult methods. It aims at establishing a relationship between the human voice and mental fatigue based on experiments to measure the influence of mental fatigue on the human voice. Two monotonous tasks of simple calculation such as finding the sum of three one digit numbers were used to measure the feeling of monotony and two sets of subjective questionnaires were used to measure mental fatigue. While thirty subjects perform the experiment, responses to the questionnaire and speech data were collected. Speech features related to speech source and the vocal tract filter were extracted from the speech data. According to the results, speech parameters deeply related to mental fatigue are a mean and standard deviation of fundamental frequency, jitter, and shimmer. This study shows that speech technology is a useful method for measuring mental fatigue.