Metastatic hepatocellular carcinoma on the mandible : A case report

Kim, Jin-Soo,Kim, Jae-Duk 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4

Hepatocellular carcinoma is one of the most common cancer worldwide, primarily affecting those in regions with a high prevalence of viral hepatitis. However, the metastasis of hepatocellular carcinoma to the oral cavity is a rare phenomenon. This report presents a case of metastatic hepatocellular carcinoma in the left mandibular angle and ramus region of a 62-year-old man. Panoramic radiograph revealed an ill-defined radiolucent lesion extending from the retained root of the mandibular left second molar into the ascending ramus. The lesion had irregular and ill-defined margins.

Magnetic resonance images of ameloblastoma

Kim, Jae-Duk,Kim, Jin-Soo 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4

Purpose : To classify and describe the characteristic features of MRI of some ameloblastoma variants. Materials and Methods : The MR images, CT images, and panoramic radiographs in 5 cases were retrospectively examined as follows. First, the contents of ameloblastomas were devided into two portions of either solid or cystic components on the basis of MR signal intensities. The signal intensity within the solid or cystic portions was classified as homogeneous or heterogeneous. Next, the characteristic internal feature of the lesion on T1W1 or T2WI was described. The signal intensities were classified into low, intermediate, slightly high, high, and strong high signal intensity. Results : Unicystic lesion showed homogeneous high signal intensity (SI) on T2W2 and the rim enhancement of the surrounding area including the mural nodule and the thick wall except the central portion on Gd-T1W1 Solid type revealed heterogeneous and high SI area with strong high SI area on T2W2. On Gd-T1W1, the area corresponding to the low signal spot on T1W1 and the strong high signal spot on T2W1 showed low SI. Hybrid type showed slightly enhanced capsular structures and low SI for the round bony septa and the areas connecting the mixed and cystic lesions on T2W1 and Gd-T1W1. Conclusion : MRI could easily assess the relationship between the mixed and cystic findings in ameloblastoma.

흰쥐에서 고칼리 식이에 의해 유도된 지방간 형성에 미치는 감귤발효 추출액의 영향

진영준,문상욱,김기옥,박덕배,김세재 제주대학교 생명과학연구소 2003 제주생명과학연구 Vol.6 No.1

Male Sprague-Dawley rats were orally treated with low and high-doses (50mg and 100mg/Kg of body weight) of either fermented-citrus extract or citrus extract dissolved in 20% ethanol during 6 weeks. The body weight, the level of plasma total choresterol were slightly reduced in higher dose(100 mg/Kg of body weight) of fermented-citrus extract comparing with other groups. but was not significantly different. The fat liver formation induced by high-fat diet were significantly reduced in rats administrated with fermented citrus-extract. This result suggest that fermented-citrus extract have hepatoprotective activity against high-fat diet induced fatty liver.

마에 의한 비염,구강 알레르기 증후군이 동반된 천식 증례

석수진,박종숙,김덕수,손범석,박춘식 순천향의학연구소 2008 Journal of Soonchunhyang Medical Science Vol.14 No.2S

..

CCD 카메라 기반 산업사진측량 시스템의 기하학적 수행성 평가

이진덕,김익환 금오공과대학교 산업기술개발연구원 2001 産業技術開發硏究 Vol.17 No.-

For the purpose of industrial precise measurement, interior orientation parameters and lens distortion coefficients of a CCD camera should be derived since the camera was originally made as non-metric. Digital images were acquired on multi-station convergent configuration and then the geometric calibration of the CCD camera(Panasonic WV_BP310) was conducted by the self-calibration technique and also the accuracies of 3D measurements were evaluated. In the case of the CCD camera based system, the average residual of automatic image measurements was estimated as about 1/25 pixel spacing respectively in x and y and the accuracies of object space coordinates ranged from 1/20,000 to 1/25,000 which corresponds to about 60% of the case of the still-video camera based system.

컴퓨터실습실 사용자관리 시스템의 설계에 관한 연구

장덕진 우송대학교 부설 산업연구원 2002 산업연구 Vol.4 No.1

Computer Science Department in the School of Computer, Electronic & Communication Engineering of the Woosong University runs six laboratories for the purpose of classes and individual student's academic activities. To support user's activities efficiently, the Systems Management Group needs to define the communication procedures between user and the administrator so the user can get service comfortably while the administrator can do the job consistently and effectively; monitoring user's behavior to determine whether the user is doing a proper activity or not; and user's performance evaluation methods to measure the student's level of course work and understanding in the case of cyber classes. In this paper, features that should be included in the development of user management system are discussed and the design concept of the system was presented.

α-Sialon 세라믹스(X=0.15)의 기계적 성질에 미치는 소결분위기 및 ZrO₂의 첨가 영향

임헌진,조덕호,이홍림,이경원 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.1

4.82 wt% AIN and 2.95 wt% Y₂O₃were added to Si₃N₄as sintering agents in order to have α-Sialon composition of X=0.15 and monoclinic ZrO₂between 0 to 10 wt% was admixed with Si₃N₄. Si₃N₄based ceramics were fabricated by hot-pressing at 1750℃ for 90 min under 30 MPa in argon and nitrogen atmospheres Effects of sintering atmospheres and addition of ZrO₂on mechanical proporties of Si₃N₄based ceramics were investigated. As ZrO₂content increased, the fraction of α-Sialon tended to decrease and the amount of cubic ZrO₂increased because Y₂O₃acted as the stabilizer of ZrO₂. The sintering atmospheres didn't affect on the sintering behavior and the product phases in hot-pressing of Si₃N₄. Bending strength increased when ZrO₂was added up to 3 wt%. Hardness showed tendency to decrease with ZrO₂content. ZrO₂didn't contribute to the increase of fracture toughness because stabilized cubic ZrO₂was produced by the added Y₂O₃.

自鼠의 血淸成分에 미치는 山椒의 影響

김덕진 대구대학교 산업기술연구소 1987 産業技術硏究 Vol.6 No.-

The change of body weight, digestion and absorption rate, the weight of several kinds of the internal organs, serum protein, cholesterol, sugar and the inorganic ingredients induced by sanshool in rates were investigated. The increase of body weight lowered in the additional group of 1% and 5% sanshool The effeciency of lowered in the additional group of 1% and 5%. The heart weight of the internal organs was decreased in the additional group of 5% sanshool. The lung weight showed a little decrease in the additional group of 5%. There wasa little change in other internal organs. α₁globulin of in the serum was decreased in the additional group of 5% sanshool. On the other hands, γ-globuin showed a remarkable increase in additional group of 1% and 5%. There were little change in other serum proteins. The gluose in the serum showed increase in the additional group of 5% sanshool, and cholesterol showed a little increase in the additional group of 1%.

非地形 寫眞測量에서 多重露出地點의 Network에 관한 硏究

이진덕 金烏工科大學校 1991 論文集 Vol.12 No.-

In the design of a multi-station close-range photogrammetric network, a number of important problems, such as multiple exposure-network geometries and complex imaging geometries must be involved. This paper illustrates three dimensional coordinate standard errors of object points resulted from bundle adjustments derived from multi-station convergent photographs, which were taken on the circular exposure-network. In convergent case, the characteristics of standard errors according to the angle of convergence and the number of photos were suggested and also, some ideas for improving accuracy in muti-station photogrammetry were suggested through standard error comparisons between convergent case and normal case.

허혈성 심질환에서 염증지표에 관한 연구

번정득,권영주,박상호,한대희,이상철,강진환,김명구,심규혁,최병조,온영근,현민수,김성구 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2

Background : Atherosclerosis is the chief underlying cause of ischemic heart disease and there is increasing evidence that inflammation is an important determinant of the development of atherosclerosis. We assessed the levels of inflammatory markers in patients with ischemic heart disease and normal group who has normal coronary angiograms. Materials and Methods : Coronary angiography was performed in 142 patients. 107 patients of ischemic heart disease(stable angina pectoris 58, unstable angina pectoris 30, Acute myocardial infarction 19) and 38 normal control subjects. We assessed the level of inflammatory markers, such as CRP, ESR, fibrinogen and leukocyte. Results : CRP, ESR and fibrinogen values of the patients with stable angina pectoris and unstable angina pectoris were higher than that of normal control group, but there were no statistical significance. Leukocyte value of the patients with unstable angina pectoris(9003.3±701.5/mm^(3)) was significantly higher than that of the patients with stable angina pectoris(6685.5±245.8/mm^(3)) and normal control subjects(6394.3±235.1/mm^(3)). CRP, ESR and fibrinogen values of the patients with acute myocardial infarction were also higher than that of normal control subjects. CRP was 3.88±2.05 mg/dL in acute mocardial infarction group, and 0.29±0.15 mg/dL in normal control subject group(p<0.05). Fibrinogen was 541.6±45.1 mg/dL in acute myocardial infarction group, 321.4±25.6 mg/dL in normal control subject group(p<0.05). Leukocyte was 10942.1±737.6/mm^(3) in acute myocardial infarction group, 6394.3±235.1/mm^(3) in normal control subject group(p<0.05). Conclusions : This study demonstrate that CRP, fibrinogen and leukocyte values of acute myocardial infarction group were significantly higher than that of control group and stable, unstable argina pectoris group. Leucokyte values were significantly elevated in unstable angina group, but CRP values were not in unstable angina group.