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온몸의 연속절단면영상 여섯째 보고 : 절단해부학을 익히기 위해서 연속절단면영상을 둘러보는 소프트웨어
박진서(Jin Seo Park),정민석(Min Suk Chung),최승훈(Hubert Choe),변호영(Ho Young Byun),황재연(Jay Hwang),신병석(Byeong-Seok Shin),박형선(Hyung Seon Park) 대한해부학회 2006 Anatomy & Cell Biology Vol.39 No.1
절단해부학은 시신을 평면으로 절단해서 보이는 해부구조물을 익히는 과목이다. 이 연구의 목적은 연속절단면영상을 둘러보는 소프트웨어를 만들어서 절단해부학을 익히는 데 도움을 주고, 나아가 자기공명영상과 컴퓨터단층사진을 익히는 데에도 도움을 주는 것이다. 이미 만든 한국 남성 시신의 온몸 연속절단면영상(수평 방향) 중에서 서로 들어맞고, 간격이 1mm인 해부영상, 자기공명영상, 컴퓨터단층사진, 구역화영상 1,702벌을 추렸다. 이 영상을 편리하게 둘러볼 수 있는 소프트웨어(파일 크기 377 MBytes)를 만들었으며, 소프트웨어의 기능은 다음과 같았다. 언제나 서로 들어맞는 해부영상, 자기공명영상, 컴퓨터단층사진, 구역화영상을 볼 수 있었고, 네 영상 중에서 관심 있는 것을 크게 볼 수 있었다. 소프트웨어의 단추, 두루마리막대, 영상 번호, 또는 컴퓨터의 자판을 써서 보고 싶은 영상을 편리하게 실시간에 찾아서 볼 수 있었다. 연속절단면영상에서 구역화한 해부구조물 13개의 이름을 볼 수 있었다. 의과대학 학생과 의사가 이 소프트웨어에서 해부영상을 둘러보면서 해부구조물의 입체 생김새를 따지면 해부학을 복습하는 데 도움이 되고, 자기공명영상과 컴퓨터단층사진을 해부영상과 견주어서 보면 자기공명영상과 컴퓨터단층사진에서 정상 해부구조물이 어떻게 보이는지 깨닫는 데 도움이 된다. Sectional anatomy is the course to learn anatomical structures on the sectional planes of cadaver. The purpose of this research is to make browsing software of the serially sectioned images, which is useful not only to learn sectional anatomy but also to learn magnetic resonance (MR) images and computed tomography (CT) images. One-thousand seven-hundred two sets of corresponding anatomical, MR, CT, and segmented images (intervals 1 mm) were selected from the serially sectioned images (horizontal direction) of a Korean male cadaver’s whole body. We composed browsing software (file size 377 MBytes) of the images, which involved the following functions: The anatomical, MR, CT, and segmented images, which were always corresponding, were displayed; one of four images could be enlarged; images of interesting levels could be displayed in a real time conveniently either using software buttons, scroll bar, image number or using computer keyboard; names of the 13 anatomical structures, which were already segmented, could be displayed. By using this software, medical students and doctors can figure out stereoscopic anatomical structures from the anatomical images to review anatomy; they can compare MR and CT images with corresponding anatomical images to easily recognize anatomical structures in the MR and CT images.
ELISA를 이용한 급성 치근단 농양 및 급성 치수염 환자에서의 혈청 항체 수준에 관한 실험적 연구
임성삼,변호영 大韓齒科保存學會 1991 Restorative Dentistry & Endodontics Vol.16 No.1
ELISA FOR MEASURING SERUM lgG AND lgM LEVELS IN PATIENTS OF ACUTE PULPITIS AND ACUTE APICAL ABSCESS Ho Young Byun, D.D.S., Sung Sam Lim, D.D.S., M.S.D., Ph.D Department of Conservative Dentistry, College of Dentistry, Seoul National University Numerous studies have been focused on the immunologic aspects of inflamed pulp and periapical tissues. The purpose of this study was to evaluate levels of serum IgG and IgM in patients of acute pulpitis and acute apical abscess using Enzyme-Linked Immunosorbent Assay. Streptococcus mutans, Streptococcus sanguis, Bacteroides intermedius and Bacteroides gingivalis were grown for use as antigen and they were harvested by centrifugation. The patients were divided into 3 groups ; patients of acute apical abecess, acute pulpitis and normal control. 5 patients of each group were selected and their blood was obtained via intravenous puncture, Sera were prepared by centrifugation of each blood samples. Then serum antibodies were measured by modified ELISA. The following results were obtained ; 1. Serum IgM levels of patients with acute pulpitis and acute apical abscess seemed to be slightly higher than those of normal control. 2. Serum IgG levels of patients with acute apical abscess were slightly higher than those of normal control. 3. Serum IgG and IgM levels of acute apical abscess patients and serum IgM levels of acute pulpitis were highest to Bacteroides gingivalis.
초고속 정보통신망을 이용한 고화질 화상 원격 병리 진단 시스템의 구현
변호영,박범,한관희 대한설비관리학회 1999 대한설비관리학회지 Vol.4 No.2
Recently there are rapid developments in Hospital Information System using Information Technology like PACS (Picture Archiving Communication System), EMR (Electronic Medical Record). For Example it has been common case that the hospital of a large size uses PACS applying picture compression and network technology. The Pathological Diagnosis is indispensable to medical treatment. but There are so many constraints that all hospitals can not make a diagnosis. The major constraints are costs and high-quality human resources. Even though medium and small hospital have the ability of operation and treatment, they can't make a operation and treatment for these reasons. The telepathology system enable them to make a diagnosis. The Telepathology System can make a correct diagnosis without direct contacts between patients and doctors. It enables them to diagnose correctly by using3-CCD camera, microscope, control computer and network technology. This research realize the tele-medical treament for pathology using a CCD camera and a microscope. And in this paper it is presented the three major subsystems. They are Image Processing system, Pathological Information Processing system, Remote Control of microscope system.
임미경,변호영 원광대학교 생체재료·매식연구소 1995 원광생체재료·매식 Vol.4 No.2
Properly performed retrograde filling is a clinically valuable procedure promoting the prognosis of apical surgery. Retrograde filling materials must have a good sealing ability, biocompatibility and they must maintain their integrity and characteristics when interacting with tissue fluids. The purpose of this study was to evaluate the biocompatibility of retrograde filling materials. Cytotoxity was tested on L929, 3T3 and KB cell lines. Bestally(Dongmyung, Korea), Prisma APH (Densply International Inc., U.S.A.). Clearfil FII (Kuraray Co., Japan), Fuji II(GC Co., Japan), Fuju II LC (GC Co., Japan) and IRM(Densply Co., U.S.A.) were prepared according to the manufacturer's instructions. Culture media were added to each materials immediately after mixing (the immediate group) and after thirty minutes (the 30-minute group), one day (the first day group) and seven days (the seventh day group) respectively. After 24-hour incubation, culture media were collected and filtered and used as experimental solutions. Three different permanent cell lines were challenged by each solution and the cytopathic effects were evaluated using 3-(4, 5-dimethylthiazol-2-yl)-2,5-dimethyltetrazolium bromide(MTT) assay. Amalgam showed good biocompatibility to three cell lines. IRM was the most toxic retrograde filling materials to all cell lines. Immediate group of Fuji II and Fuji II LC were cytotoxic to all cell llines but cytotoxicity of Fuji II LC immediate group was weaker than that Fuji II. Cytotoxic effect of Clearfil FII was different in three cell lines. It was suggested that cytotoxicity could be affected by cell lines.
경두개촬영법에서 조사각도변화에 의한 하악과두의 모양에 관한 실험적 연구
이건일,변호영 원광대학교 생체재료·매식연구소 1995 원광생체재료·매식 Vol.4 No.2
The author has evaluated the transcranial oblique lateral images of the mandibular condyle according to the angulation of the radiation projection. The lead foils were attached to both condylar poles and two thin wires were attached to the superior border and posterior border of the condyle. The mandibular condyle was located on the device designed specially. The materials consisted of 56 transcranial oblique lateral projections. The results were as follows: 1. It was possible to find the point of the retroepicondyle at angles of H-1OVO. HOVO, H-1OV5, HOV5, HOV1O and H1OVO - H1OV35(H:horizontal angulation. V:vertical angulation). 2. It was impossible to find the osteosclerotic line located in the anterior portion of the condyle on transcranial oblique lateral view at angles of H2OVO, H2OV5, H3OVO. H3OV5, H3OV1O. The length of the osteosclerotic line was positive horizontal angulation. but the distance between the osteosclerotic line and the superior border of the condyle was getting closer. 3. When the vetical angulation increased. the smooth posteior border line of the condyle was getting angulated with the increase of the positive horizontal angulation and getting curved sharply with the increase of the negative horizontal angulation. 4. We might misinterpret the shape of the medial pole as the ostophyte seen in osteoarthrosis with the increase of the negative horizontal angulation. 5. The inclination and the distance between both condylar poles were getting increased with the increase of the horizontal and the vertical angulation.