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횡행결장에서 발견된 시위석 ( Diospyrobezoar )
최창환(Chang Whan Choi),정영호(Young Ho Jeong),문현웅(Hyun Woong Moon),이호심(Ho Sim Lee),김종숙(Chong Sook Kim) 대한소화기학회 1995 대한소화기학회지 Vol.27 No.2
Diospyrobezoar I.I o type ot' hezcwir which ure hecomes concrete when vegetables or fruits such as persimmons are ingeited.. The diospyrohezoar dcvelops very rapidly and becornes large enough to cauuse the intestinal ohstructiomi, gastric hleedinig by the mech;mical irritation or uulceration and pert'oratioon. Frequuent loocationi of bez(xlr av. Fhic ileum attd thc jcjunnunn. Hercin, we dcscribc a rare case of diospyrohez(xir whicEi was recovvrcd from tEie transverse colon. The patient was a 68- year-old woman, who complainc.d of v;holc abdoininal pain and vomiting for 3 ciays. Plain obdo- minal filrn showed a fetus fist .iized mass-like .ihadow on the right 1ower quadrant. Abdominal C.'T scanning showed a solid muss on di.tal jejunum or proximal ileum. Upon operution, the large mass was observed in the mid-trun.evcrse colon, which wa.I renwived by uppendcctomy;md ceccctorny. (Korean 3 Gastroenterol 1995;27:256 260)
총장골정맥과 하대정맥 전장이 폐쇄된 Budd-Chiari 증후군
최창환(Chang Whan Choi),정영호(Young Ho Jeong),문현웅(Hyun Woong Moon),김광철(Kwang Chul Kim),박무영(Mu Yeong Park),이성걸(Seong Geol Lee),이호심(Ho Sim Lee),김종숙(Jong Sook Kim) 대한소화기학회 1994 대한소화기학회지 Vol.26 No.3
Budd-Chari syndrome is a rare clinical entity characterized by post-sinusoidal portal hypertension caused by the obstruction to the hepatic vein outflow. Membranous obstruction of the hepatic inferior vena cava is one of the common causes of Budd-Chiari syndrome. The diagnosis is usually confirmed by hepatic vena graphy, inferior vena cavography and biopsy. We have experienced a case of Budd-Chiari syndrome associated with complete obstruction of the inferior vena cava through various radiologic findings. This case of Budd-Chiari syndrome was confirmed by inferior venacavography, abdorninal CT, songoraphy and color doppler sonography. Radiologic findings showed right, left and mid hepatic vein obstruction, complete IVC obstruction, azygos & hemiazygos circulation and multiple collateral circulation via superficial route. We report this case of Budd-Chairi syndrome with review of literature. (Korean J Gastronterology 1994; 26: 601 606)
위장관출혈부위와 혈청 Urea와 Creatinine 비의 관련성
이성걸(Seong Geol Lee),최창환(Chang Whan Choi),문현웅(Hyun Woong Moon),정영호(Young Ho Jeong),이호심(Ho Sim Lee),김용기(Yong Ki Kim),김종숙(Chong Sook Kim) 대한소화기학회 1994 대한소화기학회지 Vol.26 No.3
N/A We evaluated the usefulness of serum urea and creatinine ratios to differentiate bleeding sites in 63 patients vith gastrointestinal bleeding from August 1991 to Viay 199Z, The follow- ing results were obtained: Serum urea and creat.inine ratios in the upper gastrointestinal group were significantly higher than those in t.he lower gastrointestinal bleeding and control. The ratios were higher in proportion to the volume of blood loss in the upper gastrointestina! Bleeding group. The percent of patients over 80 in the ratios was 77 % in t.he uppcr gastrointestinal bleeding gr oup, whereas was 6.2 % in the lower gastrointestinal bleeding. Thc upper gastrointestinal bleeding, the ratios below 80 were obtained in 11 cases which ha<l cases of small amount bleeding, shortening of intestinal transit tirne, correction of body I'luid arid electrolyte imbalance, and other unknown causes. Result,s of above studies indicated that de terrnination of serum urea and creatinine ratios was a simple and useful procedure fr diagno sis, but we need further study t.o det,ermine the presence of factors to the rat.io variability.(Ko rean J Gastroenterol 1994; 26: 432 436)
이남호(Nam-Ho Lee),최창환(Chang-Whan Choi),신호철(Ho-Chul Shin),정승호(Seung-Ho Jung) 대한전기학회 2006 정보 및 제어 심포지엄 논문집 Vol.2006 No.1
CCD형 영상소자는 방사선 피폭 시 표면과 격자내부에 모두 손상을 받게 되며, 감마방사선이나 X선과 같은 고에너지의 이온화 방사선에 노출될 경우 격자 실리콘 내부에 전자-전공쌍(Electron-hole pair, EHP)이 발생된다. 이러한 EHP는 CCD의 순간 출력 광전류로 변환되어 백색 화소 형태의 영상잡음으로 가시화되며, 이 화소 수는 피폭 방사선량에 비례하여 증가하는 특성을 지니고 있다. 따라서 출력 영상정보를 분석하연 조사된 방사선의 양과 특성을 측정할 수 있다. 본 연구에서는 CCD를 이용하여 가상의 방사능 물질 누출 공간에서 방사선원의 방향과 거리정보를 고속으로 탐지하기 위한 장치와 고속 측정 알고리즘을 구현하고 실제 방사선장에서 실증시험을 수행하였다. 방사선 탐지기는 콘형 납 콜리메이터(Collimator)와 가시광 변환용 신틸레이터(CsITI) 및 차폐체로 구성된 센서부와 제어 및 방사광 신호처리를 수행하는 PC부로 구성된다. 감마방사선(??Co) 방사선장 실증시험에서 방사선원간 거리 83㎝에서 측정된 거리 탕지는 5.3%의 오차로 확인되었다. 이 방사선 탑지기는 임의의 고방사선 누출사고에 대한 초기대응 작업을 수행하기 위한 무인 이동로봇용 방사선 탕지기로 활용이 가능하다.
특발성 비후성 대동맥판막하 협착증에 동반된 신경색 1 예
오동진(Dong Jin Oh),최창환(Chang Whan Choi),이준승(Jun Seung Lee),박지현(Jee Hyun Park),곽귀철(Gue Chul Guak),손창재(Chang Jae Sohn),김봉식(Bong Sik Kim),강응택(Eung Taek Kang),유석희(Suk Hee Yu) 대한내과학회 1994 대한내과학회지 Vol.47 No.5
Since the first description of renal infarction by Hirschwald in 1856, renal infarction is not a rare disorder, But the diagnoais of this is often delayed due to relative low incidence, non-specific symptoms and signs, physicien's lack of familiarity, However, correct diagnosis are mandatory because of favorable outcome with anticoagulant, The causes of renal infarction is most1y related to valvular heart disease and arrhythmia. We reported a case of renal infarction associated with idiopathic hypertrophic subaortic stenosis (IHSS) in a 63-year old man confirmed by renal biopsy and echocardiography, He had suffered from angina pectoris and hypertension over 10 years and recently experienced sudden left lower quadrant abdominal pain. The M-mode echocardiography was compatible with IHSS (asymmetrical septal hypertrophy, systolic anterior motion of mitral valve and narrowing of LV outflow tract. Others were unremarkable). The abdomen CT scan showed multiple wedge-shaped low density lesion. The renal biopsy showed severe lumen narrowing and intimal proliferation of medium-sized artery and ischemic necrosis of renal glomeruli, renal tubules, interstitium. Therefore, this case highly suggested that renal infarction was caused by IHSS. We discussed this case with review of literatures.
이호심(Ho Sim Lee),이성걸(Seong Geol Lee),이정선(Jeong Sun Lee),최창환(Chang Whan Choi),김용기(Young Ki Kim),김종숙(Jong Sook Kim),우제호(Je Ho Woo) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.4
Solid and papillary epithelial tumor that occurs chiefly in young woman. It is amenable to surgical resection and cure. Recurrence after operation and distant metastasis are rare. But, a few cases with recurrence or distant metastasis have been reported. We have encounted a case of solid and papillary tumor of the pancreas with distant metastasis and recurrence 7 years after resection in 34 years old female, so report it.
정영호(Young Ho Jeong),김광철(Kwang Chul Kim),박무영(Mu Yeong Park),문현웅(Hyun Woong Moon),최창환(Chang Whan Choi),이성걸(Seong Geol Lee),서양관(Yang Kwan Seo),김종숙(Chong Sook Kim) 대한소화기학회 1994 대한소화기학회지 Vol.26 No.2
Since Abrikossoff first reported five cases of granular celll tumor of the tongue in 1926, this tumor has been reported in many different locations throughout the body. The purpose of this paper is to discuss the clinical and pathologic features in a case of gran- ular cell tomor of the esophagus. A case of granular cell tumor of the esophagus is reported. This 36 year old female patient was admitted to the hospital because of vomiting. She was re- vealed esophageal rnass on gastrofibroscopy and demonstrated granular cell tumor in histo- pathologic examination of esophageal biopsy. (Korean J Gastroenterol 1994; 26: 327-331)
궤양성 대장염에 동반된 Budd-Chiari 증후군 및 상장간막정맥 혈전증
박소영 ( So Young Park ),김윤재 ( Yoon Jae Kim ),박인혜 ( In Hae Park ),문창모 ( Chang Mo Moon ),최창환 ( Chang Whan Choi ),이상길 ( Sang Kil Lee ),김혜령 ( Hae Ryoung Kim ),박영년 ( Young Nyun Park ),김태일 ( Tae Il Kim ),김원호 대한소화기학회 2005 대한소화기학회지 Vol.45 No.3
Patients with inflammatory bowel disease are at increased risk for thromboembolic complications. Its prevalence rate ranges from 1% to 7% in clinical studies and reaches 39% in autopsy series. The cause of thrombotic complications in inflammatory bowel di
박인환,최창환 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4
This research aimed to analyze the status of and the relationship between collegians' health promoting lifestyle and health locus of control, part of their health management efforts. Thus, the research conducted cluster random sampling of 551 collegians in colleges in Gwangju, made them fill out a questionnaire on health promoting lifestyle and health locus of control, and analyzed the status and the effect of their health promoting lifestyle on their health locus of control. Statistical methods used for analyzing data include two-independent samples t-test, one-way ANOVA, and multiple regression analysis. With such purpose and methodology, the analysis came up with the following conclusion. First, compared to female students, male students had higher experience and lower experience rates of medical check-up, higher participation and lower participation rates of sports for living, and higher subjective health status consciousness. Likewise, juniors had the highest subscription rate of health insurance, seniors had the highest intake rate of health food, and freshmen had the lowest intake rate. Also, seniors had the highest experience rate of surgical (treatment) operation and juniors had the lowest experience in operation. Still, seniors had the highest medical check-up experience rate while freshmen had the lowest rate. Juniors and freshmen had the highest and lowest participation rates of sports for living, respectively. In particular, freshmen, subjectively, were the most negative about their health status, while juniors were the most positive. Second, collegians had low inner behavior of control and low others-dependent behavior of control, and normal accidental behavior of control. Likewise, compared to male students, female students had higher inner behavior of control, and juniors and seniors had higher behavior of control and higher accidental behavior of control. Also, freshmen and sophomores had higher others-dependent behavior of control. On the other hand, the group of health insurance subscribers had higher accidental behavior of control than the group of non-subscribers, and the group of non-takers of health food and subjects with no experience in operation (treatment) had higher inner behavior of control. Also, the group of subjects with no experience in medical check-up had higher inner behavior of control and others-dependent behavior of control, while the group of participants in sports for living had higher others-dependent behavior of control and accidental behavior of control. Still, the group of subjects with normal subjective health status consciousness had higher inner behavior of control and accidental behavior of control. Third, whether one took health food had effects on inner behavior of control, and subjective health status consciousness had effects on inner behavior of control and others-dependent behavior of control. Likewise, an experience in operation (treatment) had positive effects on inner behavior of control, but negative effects on accidental behavior of control. Also, an experience in medical check-up had negative effects on inner behavior of control, but positive effects on others-dependent behavior of control. Participation in sports for living had positive effects on others-dependent behavior of control and accidental behavior of control.