췌장염에 의한 가성낭종내에 생긴 가성동맥류 : 1례 보고

오연희,이채경,김승현,이성우,양창현,이정호,이영현 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

만성 췌장염의 합병증으로 생긴 가성동맥류는 드문질환으로, 반복적으로 다량의 출혈을 일으킬 수 있으며, 치료를 하지 않을 경우 사망율이 높기 때문에, 조기 진단과 치료가 필수적이다. 저자들은 38세 남자 환자에서 췌장염의 합병증으로 생긴 가성낭종내에서 발생한 가성동맥류 1예를 경험하였기에 보고하는 바이다. 가성 동맥류의 색혈류도플러상 낭종내에 양방향 흐름의 와류를 볼 수 있었다. Pancreatic Pseudoaneurysm within Pseudocyst from Pancreatitis: 1 Case Department of Diagnostic Radiology and Internal Medicine, College of Medicine,DongGuk University Yeon Hee OH M.D., Chae Kyeong Lee M.D., Seoung Hyeon Kim M.D., Sung Woo Lee M.D., Chang Heon Yang M.D., Jung Ho Lee M.D., Young Hyun Lee M.D. Pseudoaneurysm from pancreatitis is uncommon, but it can cause recurrent and massive hemorrhage. Because of high morbidity and mortality, early detection and treatment of the pseudoaneurysm is needed. We report a case of pseudoaneurysm within pseudocyst from pancreatitis. Color-flow Doppler sonography shows bidirectional flow and turbulent arterial flow, within anechoic mass.

이온전리함 기반의 컨테이너 검색용 고에너지 X-선 선량 측정장치 개발

이정희,임창휘,박종원,이상헌,Lee, Junghee,Lim, Chang Hwy,Park, Jong-Won,Lee, Sang Heon 한국정보통신학회 2020 한국정보통신학회논문지 Vol.24 No.12

X-ray of up to 9MeV are used for container inspection. X-ray intensity must be maintained stably regardless of changes in time. If dose is not constant, it may affect the image quality, and as a result, may affect the inspection of abnormal cargo. Therefore, to acquire high-quality images, continuous dose monitoring is required. In this study, the ion-chamber based device was developed for monitoring the dose change in high-energy x-ray. And to estimate the performance of signal-processing device change according to the environmental change, the output changing due to the change of temperature and humidity was observed. In addition, verification of the device was performed by measuring the output change. As a result of the measurement, there was no significant difference in performance due to changes in temperature and humidity, and the change in output according to the change in exposure was linear. Therefore, it was found that the developed device is suitable for the dose monitoring of high-energy x-ray. 일반적으로 컨테이너 내부검사를 위해서는 최대 9MeV의 X-선을 사용한다. 이때 사용되는 X-선은 선형가속기를 통해 생성되며 일정한 세기의 X-선량이 시간의 변화에 관계없이 안정적으로 유지되어야 한다. 만약 발생되는 X-선의 세기가 일정하지 않다면 영상의 해상도와 대비도 등에 영향을 미칠 수 있으며 결과적으로 컨테이너 내부의 이상화물에 대한 검사에 영향을 미칠 수 있다. 그러므로 고화질의 영상을 획득하기 위해서는 발생되는 X-선 선량에 대한 지속적인 모니터링이 요구된다. 이와같은 선량 모니터링을 위하여, 본 연구에서는 고에너지 X-선 선량의 변화 측정을 위한 이온전리함 기반의 선량변화 측정장치를 개발하였고 환경변화에 따른 신호처리부의 성능변화를 확인하기 위하여 온도와 습도 변화에 의한 측정값의 변화를 관찰하였다. 또한, 고에너지 X-선 발생장치에서 발생되는 선량의 변화에 따른 응답특성변화를 측정함으로써 개발한 X-선 선량측정장치의 검증을 수행하였다. 측정결과 온도와 습도의 변화에 따른 성능의 차이가 크게 나타나지 않았으며 입사되는 선량의 변화에 따른 출력의 변화가 선형적이었다. 그러므로 개발한 이온전리함 기반의 선량변화측정장치는 고에너지 X-선의 선량변화의 측정에 적용하기에 적합함을 알 수 있었다.

Acupuncture Treatment about Medial Meniscus Posterior Horn Rupture : A Case Report

Lee, Hey-Jin,Lee, Nam-Heon,Son, Chang-Gue,Cho, Jung-Hyo Research Institute of Korean Medicine 2020 혜화의학회지 Vol.29 No.2

Objectives : In this case, the knee joint inconvenience with deteriorating pain has been relieved by acupuncture treatment for a patient was 51-year-old male with a left medial meniscal posterior horn rupture in 2012. Methods : Twenty-four times of acupuncture treatments were performed for Twelve weeks from July 2016 to improve the disease. SP8(Jigi; 地機), BL63(Geummun; 金門), KI3(Taegye; 太谿), LI4(Hapgok; 合谷) were chosen for treatment by principles of Traditional Korean Medicine. Results : Numeric Rating Scales, which means subjective pain, decreased from 6 points to 3 points out of 10 points in total. Pressure Pain Threshold, which means sensitivity to pressure applied to the affected area, increased from 21N to 47N on the lateral-inferior side and from 19N to 50N on the lateral side. K-WOMAC, which indicates discomfort of knee-related activity, was 56 points out of 96 points in total before treatment and 4 points after treatment, 13 points after two years, and 15 points after four years. However, MRI tests conducted before and after treatment did not identify any significant changes. As a result, we confirmed that a total of 24 acupuncture treatments had resulted in the relief objective and subjective pain and functional recovery, especially in the case of the knee function, maintained until after four years later. There was no significant substrate recovery in meniscal rupture.

기종성 신우신염 1례

이재욱,구정태,서정일,양창헌,이정호,이동철,이영현,이활,이경섭 동국대학교 경주대학 1997 東國論集 Vol.16 No.1

기종성 신우신염은 주로 당뇨병환자나 폐쇄성 요로질환을 가진 환자에 발생하며 특징적으로 신실질 및 그 주위조직에 가스를 형성하면서 심한 조직괴사를 일으키는 매우 드문 급성 화농성 신감염으로 사망률이 높은 질환이다. 이 질환은 1989년 Kelly와 MacCallum에 의해 처음 보고된 이래 외국문헌에 약 90례 정도가 보고되어 있으며 국내에는 28례가 보고되어 있다. 수액 및 전해질 보충, 인슐린 투여를 통한 적절한 혈당조절 및 항생제 투여등의 내과적 치료와 절개배농 및 신적출술등의 수술적 치료 방법이 있다. 내과적 치료로 가스의 감소가 없는 경우에는 즉각적인 수술적 치료를 시행하여야하므로 이 가스변화에 대한 추적관찰이 중요하다 하겠다. 본 저자들은 당뇨병환자에서 발생한 기종성 신우신염 1례를 내과적 요법을 치험하였기에 문헌고찰과 함께 보고하고자 한다. Emphysematous pyelonephritis is rare, life-threatening infection of the renal parenchyma and perirenal tisseue. This disease is characterized by the production of intrarenal and perirenal gas and is frequently encountered in patients with diabetes mellitus or urinary obstruction. We experienced a case of emphysematouse pyelonephritis in a 62 years old women with poorly controlled diabetes mellitus who had been managed with medical theraphy. So we report this case with a review of the referenced literatures.

지표면에 인접한 공동탐지를 위한 고정밀 중력탐사 연구

이영철(Lee Young Cheol),박우식(Park Woo Sik),홍순헌(Hong Soon Heon),최현(Choi Hyun),안창환(Ahn Chang Hwan),이중호(Lee Joong Ho) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.6

도심지에서 발생하고 있는 땅꺼짐은 자연적인 현상보다는 인공적인 현상에 가깝다. 발생 원인으로는 자연적 지반변화에 의하여 발생하기보다 지하시설물의 노후화나 굴착공사시 발생한 지중 공동현상에 따른 상부 지반의 지지력이 약화되어 지반이 침하하는 현상이 특징이다. 본 연구에서는 수십 μGal의 중력이상을 발생하는 공동 발생 상황을 가정하여, 1 ton 부피의 PE 물탱크를 연구지역에 매설하였다. GPR탐사와 중력탐사를 물탱크 매설 전·후로 수행하여 각각의 결과를 비교 검토하여 고정밀 중력탐사를 이용한 지하공동탐사 적용성 가능성을 검증하고자 하였다. A road collapse occurring in urban areas is more close to an artificial cause than a natural cause. The road collapse is characterized by the phenomenon that weakening of ground support force affected by sinkhole caused by the aging of underground facilities or excavation work rather than the natural ground changes. Therefor in this study, we buried 1-ton volume of PE water tank in the study area assuming a sinkhole generating dozens μGal GPR survey and gravity survey were conducted before and after burying the water tank than each survey result was analyzed. With these results, we attempt to verify the applicatbility of sinkhole detection using microgravity survey.

지피상태에 (地被狀態) 따른 임지의 (林地) 수저유 (水貯留) 특성

이헌호(Heon Ho Lee),이창우(Chang Woo Lee) 한국산림과학회 1994 한국산림과학회지 Vol.83 No.3

This study was carried out to investigate the water storage charateristics of surface soil by different forest floor conditions and to measure water storage capacity of forest Land at the Yeungnam University forest in Yongjang-ri, Nenam-myoen, Kyongju-gun, Kyongsangbuk-do. The study was conducted for 4 months, from June to September, 1993. The results were summarized as follows ; 1. Infiltration capacity of surface soil for each. forest floor condition was in the order : Oak forest$gt;Oak forest removed Ao layer$gt;Pine forest removed Ao layer$gt;Pine forest$gt;Bare land$gt;Grasses. 2. The absolute values of infiltration capacity were increased as the rain intensity increased, while the order of infiltration capacity for each floor condition was not changed. 3. Infiltration capacity was highly correlated with surface soil hardness and todal pores. 4. Infiltration formula based on the Horton`s could be estimated at each forest floor condition. 5. The model for water storage capacity of forest land expressed by infiltration capacity was estimated using total pores and soil hardness. This study indicates water storage capacity of different forest floor conditions depends on infiltration capacity. Using these formula, it was possible to calculate and estimate water storage capacity of forest land. Therefore, the result of this study will be helpful to increase water storage capacity of forest land and to manage water resources effectively.

운동에너지 탄에 따른 전투시스템 내의 순간화재발생에 대한 해석적 연구

이승철(Lee Seung-Chul),전우철(Jeon Woo-Chul),이해평(Lee Hae-Pyeong),이헌주(Lee Heon-Joo),이창현(Lee Chang-Hyun) 제어로봇시스템학회 2012 제어로봇시스템학회 합동학술대회 논문집 Vol.2012 No.7

본 연구는 외부 위협탄에 의한 전투시스템의 취약성을 분석하기 위한 선행연구로써, 운동에너지 탄의 종류에 따른 가상의 전투차량 내부에 적재포탄에서 순간화재발생 여부에 대한 전산해석을 수행하였다. 본 해석은 Autodyn 프로그램을 사용하였으며 순간화재발생을 판단하기 위해 Lee-Tarver ignition and growth model을 이용하였다. 본 계산에서 운동에너지 탄은 type A와 type B 두 가지로 설정하였고, 고폭탄은 COMPB, TNT 및 PBX9404를 설정하였다. 전산해석 결과, 고폭탄의 재질이 TNT와 PBX9404가 COMPB 재질보다 순간화재발생 확률이 상당히 높음을 알 수 있고 type B의 운동에너지 탄이 type A 보다 순간화재발생 확률이 다소 높음을 알 수 있었다.

치수절단술에 사용되는 약제가 백서 치배 및 치배주위조직세포에 미치는 영향에 관한 ^3H-thymidine을 이용한 자기방사법적인 연구

박경주,이종헌,임창윤 단국대학교 치의학연구소 1992 논문집 Vol.4 No.-

Formocresol(FC) had been widely used as medicament for pulpotomy, but because FC have strong toxicity, carcinogenic potential, and strong diffusible properties in tissues, Glutaraldehyde, another medicament for pulpotomy was greatly presented by many investigators and practitioners. Although many investigators had studied difference of two medicament's effects on periodontal tissues and tooth germ, there were no manuscripts of cellular activity about these medicaments applied to teeth, but there were almost clinical, histopathological studies. Especially in the investigative effects on tooth germ, the results were controversal. Thus to investigate about effects on cellular actiity of perigerminal tissue and tooth germ of rat, author presented the cellular activity and the pathologic change through calculating Thymidine labelling index(TLI) from autoradiographic technique using 3H-thymidine after these medicaments were applied to tooth. The obtained results were as follows. 1. Inflammation was initiated after one week of FC and two weeks of GA. It was thought that diffusible property of GA was lesser than that of FC. 2. In group treated with FC, inflammation, vasodilation and bone destruction continuously increased for all periods of experiment and the feature of 8 weeks was very severe. But in group treated with GA, inflammation, vasodilation and bone destruction slightly incresed for all period of experment. 3. TLI was increased after two weeks of FC, but decreased after four weeks because of different accumulative concentration between 2 and 4 weeks. 4. GA treated group which did not show the change of the cellular activity of perigerminal tissue and tooth germ presented the slight effects on these cells. 5. Changes of cellular activities in FC treated group did not result from inflammation, but formocresole's property itself. And bone destruction was derived from secondary effects of inflammation. 6. The fact that FC arose severe inflammation and change of cellular activity reflected that FC might affected

Acupuncture Treatment about Medial Meniscus Posterior Horn Rupture : A Case Report

Hey-Jin Lee,Nam-Heon Lee,Chang-Gue Son 大田大學校 附屬 韓方病院 2020 惠和醫學 Vol.29 No.2

Obectives: In this case, the knee joint inconvenience with deteriorating pain has been relieved by acupuncture treatment for a patient was 51-year-old male with a left medial meniscal posterior horn rupture in 2012. Methods : Twenty-four times of acupuncture treatments were performed for Twelve weeks from July 2016 to improve the disease. SP8(Jigi; 地機), BL63(Geummun; 金門), KI3(Taegye; 太谿), LI4(Hapgok; 合谷) were chosen for treatment by principles of Traditional Korean Medicine. Results : Numeric Rating Scales, which means subjective pain, decreased from 6 points to 3 points out of 10 points in total. Pressure Pain Threshold, which means sensitivity to pressure applied to the affected area, increased from 21N to 47N on the lateral-inferior side and from 19N to 50N on the lateral side. K-WOMAC, which indicates discomfort of knee-related activity, was 56 points out of 96 points in total before treatment and 4 points after treatment, 13 points after two years, and 15 points after four years. However, MRI tests conducted before and after treatment did not identify any significant changes.As a result, we confirmed that a total of 24 acupuncture treatments had resulted in the relief objective and subjective pain and functional recovery, especially in the case of the knee function, maintained until after four years later. There was no significant substrate recovery in meniscal repture.

위의 유암종과 선종의 병발 1례

장재식,강혁주,이중현,서영범,윤병구,김용섭,이구,서정일,양창헌,이창우,김정란,윤환중 東國大學校醫學硏究所 2000 東國醫學 Vol.7 No.-

유암종은 전신에 퍼져 잇는 장크롬친화성 세포에서 기원하는데 위의 유암종은 비교적 드문 질환으로 모든 유암종의 1.9~2.2%에 해당하며 위에 발생하는 종양의 1% 미만에서 보고되고 있다. 유암종은 일반적으로 증상이 비특이적이고 면역조직화학검사에 의해서 진단되기 때문에 과거에는 드물게 발견되었으나 최근 내시경 기기 및 술기의 발전과 검사 빈도의 증가 및 면역조직화학검사의 발달로 진단율이 증가 추세에 있으며, 드물지만 유암종에서 선암과 공존하는 예들이 보고되고 있다. 저자들은 심와부 동통을 주소로 내원한 70세 남자 환자의 상부위장관내시경 검사에서 위체상부의 대만곡에서 0.4×0.4 cm 크기의 중간 함몰을 가진 Yamada 1형의 용종과 함께 전정부의 전벽에서 0.8×0.5 cm 크기의 융기된 점막 소견을 보여 조직학적으로 각각 위유암종 및 위선종임을 확진한 후 내시경적 용종 절제술로 치료한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Carcinoid tumors are arisen from enterochromaffin cells, which are scattered throughout the body. These tumors are composed of variable numbers of cells that contain endocrine granules in their cytoplasm, which can be identified by immunohistochemistry and electron microscopy. Gastric carcinoid tumors are relatively rare tumor, the reported incidence being 1.9~2.2% of all carcinoid tumors and less than 1% of all gastric tumors. Sometimes, composite carcinoid tumors and adenocarcinoma is reported. We experienced a case of the coincidence of carcinoid tumor and adenoma at the other site of the stomach in a 70 year old male patient. Gastrofiberscope showed 0.4×0.4 cm sized Yamada type I polyp with central depression on the greater curvature of the proximal body and 0.8×0.5 cm sized focal slightly elevated mucosa on the anterior wall of the antrum. The endoscopic biopsy specimens revealed carcinoid tumor and tubular adenoma with moderate atypism, respectively. The carcinoid tumor and adenoma were removed by endoscopic polypectomy. According to the follow-up gastrofiberoscopy after 7 month later, both lesions were nearly normal mucosa except whitish atrophic change after polypectomy.