안전한 장중첩증 공기압정복장치의 제작 및 임상적 이용

지연상,한재진 광주보건대학 2004 論文集 Vol.29 No.-

This study was peformed to design a safe air-pressure reduction system which can absorb rapidly rising intraluminal pressure during intussusception, and comparison with other reduction systems to test its clinical availability. The air-pressure reduction system consisted of a pressure gauge, air insufflators a pressure controller, buffers, and rapid exhaustion devices, and to determine its absorbability, it was connected with a bowel model. By using it in 20 infants with intussusception, we compared the absorbability of our air-pressure reduction system with preexisting systems. While extraluminal pressure was applied to the bowel model in which baseline intraluminal pressure was set to 120mmHg, this rose to 176mmHg(56mmHg high to standard, 100%) in the direct infusion system, but to only 130mmHg (10mmHg high to standard, 17.9%) in a system connected to a large buffer of 10,500㎖ capacity. Immediately after the application of extraluminal pressure for less than 1 sec, this air-pressure reduction system showed better absorbability than the hydrostatic reduction system. Applying this system to 20 infants with intussusception, this was successfully Reduced in 19 cases(95%), without complications. In this experiment, it was proved that the system absorbed rapid intraluminal pressure elevation. Its use would help prevent bowel perforation during air reduction occurring during.

하지정맥류 평가의 3차원 조영증강 MRV와 Venography의 유용성 비교 연구

지연상,한재진 광주보건대학 2003 論文集 Vol.28 No.-

To assess the performance of contrast-enhanced three-dimensional(3D) magnetic resonance venography(MRV) of the pelvis and lower extremities in patients with varicose vein. Conventional and MR venography were peformed in 14 legs in 14 patients and duplex doppler sonogram and MR venography were performed in 30 legs in 24 patients referred fo revaluation of varicose vein. For analysis, the venous system was divided into 13 segment in Conventional and MR venographic images, For detection of reflux to greater saphenous vein, duplex doppler sonogram and MRV were peformed. In ascending venogram and MRV, 182 venous segments potentially could be seen. MRV depicted 156 segments. 8 segments among depicted segments at MRV were not seen at ascending venogram. Ascending venogram depicted 182 segment. 4 segments among depicted segments at ascending venogram were not seen at MRV. MRV detected 38 varices and ascending venogram detected 34 varices, When two tourniquets were placed around the ankle and knee with valsalva maneuver, MRV detected reflux in 16 legs of 22 legs. Duplex doppler sonogram detected reflux in 26 legs of 30 legs. Contrast-enhanced 3D MRV comprehensively displays the lower extremity venous system and permits assessment of varicose vein. MRV with valsalva maneuver permit assessment of reflux to greater saphenous vein.

PC를 이용한 웹 기반 원격 방사선 인터넷 PACS 설계 및 구현

지연상,김승국,한재진 광주보건대학 2001 論文集 Vol.26 No.-

This study can get the result below with the embodiment of INTERNET- PACS system. 1. This study is to embody the INTERNET-PACS that can use the main functions of high-priced PACS that can be used in the general small hospitals by the embodiment on the general PC. And it made the burden about the additional expenses decreasing at maximum by the development of DICOM converter algorithm and by the interlock with the existing devices. 2. Also it could expand the PACS in stage as well as it made the information transmission in the hospitals through the network easy at the same time with the share of the client and the server on a system. 3. The embodied INTERNET-PACS system have advantages that have independent image management and operation system and that can make the system more flexible in its embodiment because the standard protocol is used in the internet recently.

태권도 연구경향과 방향성 대한 연구

지치환,윤상화,조임형 龍仁大學校 武道硏究所 1997 武道硏究所誌 Vol.8 No.2

The purpose of this study was to investigate the rescarch pattern and trends of Tae Kwon Do researches. Hundred ten papers were analysised for this purpose and the analysis were devided two categories. The first category was analysis of subject in Tae Kwon Do research. The second category was analysis of object in Tae Kwon Do research. From the analysis, result were made as follows; 1. Analysis of subject in Tae Kwon Do research. The researches which treat physiological factor were 26.4%, the researches which treat techniques for compitition were 25.5%, and the researches which treat psycological factors were 11.8%. 2. Analysis of object in Tae Kwon Do research. The researches which object compitition were 77.3%, and it contains kicking, physical fitness, point, athlete, division, weight, structure of technique, injury, judge, rules. The researches which object displine were 10% and reality of Tae Kwon Do were only 9%

CT Scanogram과 FFD에 따른 장골계측촬영의 비교분석과 고찰

지연상,한재진 광주보건대학 2002 論文集 Vol.27 No.-

The accurate measurement for long bone have taken an important part in orthopedics surgical diseases when the length of extremities is different each other because of some disorder. The radiography of long bone measurement is widely being used in medical centers. We also can use various kinds of methods to search for the accurate measurement. In this thesis, we have measured the real length of long bone for CT Scanogram and FFD by 100㎝ and 200㎝ in the angle of inclination 0°, 3°, and 7°. The data can be used to diagnose and treat patients by the comparative analysis.

건강한 성인에서 발병한 칸디다와 연관된 위궤양 1례

박지훈,이상혁,김희,이재호,박성재,지삼룡,양성연,박은택,이연재,설상영,정정명,강미선 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Fungus such as Candida albicans is a normal flora that is frequently found in the oral cavity, gastrointestinal tract, genitourinary tract, vaginal mucosa in a normal person. However, candida can cause opportunistic infection in an immune compromised host. Candidiasis has broad spectrum of disease from mucocutaneous infection to invasive or disseminated infection. But, it is rarely reported that candida is associaed with gastrointestinal tract disease in a healthy adult. The case of gastric ulcer associated with candida particularly in a health adult is reported with relevant literature.

실험동물에서의 내분비계 교란물질인 DEHP, DBP의 생체내 영향

정지윤,이성호,박영석,박병권,김병수,김상기,박창식,강경선,이영순 충남대학교 형질전환복제돼지연구센터 2007 논문집 Vol. No.10

The major protocol features of the rodent uterotrophic assay have been evaluated using a range of reference chemicals. The protocol variables considered include the selection of the test species and route of chemical administration, the age of the test animals, the maintenance diet used, and the specificity of the assay for estrogens. The rodents were ovariectomized under general anesthesia via bilateral flank incisions and randomly assigned to groups of 5 animals. This study investigated the estrogenic effects of phthalates, which are DEHP and DBP, suspected as endocrine disruptors. It is concluded that three daily subcutaneous administration of test chemicals, which are di-ethylhexyl phthalate(DEHP) and di-n-butyl phthalate(DBP), to 9 week-old rodents. The results revealed that DEHP & DBP show similar uterotrophic activity in the rat and the mouse, using subcutaneous administration. DEHP and DBP failed to affect any of these parameters, which are body weight, mammary gland, vaginal and uterus histopathology. but, DBP increased uterus weight to only one rat of 1.0 g/kg group. The results conform the need for rigorous attention to experimental design and criteria for assessing estrogenic activity.

골수염으로 발현된 재발성 콕시디오이데스 진균증 1예

백지현,박은영,정윤숙,홍재원,채윤태,진성준,최희경,신소연,한상훈,진범식,김창오,최준용,송영구,조남훈,김준명 대한감염학회 2009 감염과 화학요법 Vol.41 No.4

Coccidioidomycosis is a fungal infection that results from inhaling the airborne arthroconidia of the Coccidioides species. It is an endemic disease in the southwest part of North America and rarely diagnosed in Korea. As tourism to endemic areas and the number of immunocompromised patients have been increasing, the incidence of this infection has increased in non-endemic areas. Treatment is usually successful with antifungal agents; however, recurrence is common. It is difficult to decide when to discontinue the antifungal treatment especially in non-endemic areas where doctors are not familiar with the disease. We report a case of recurrent coccidioidomycosis manifesting as osteomyelitis after the treatment of the patient for disseminated coccidioidal infection. The complement fixation test was a useful tool for the assessment of patient response and to evaluate suspected recurrence.

구내 표준 방사선사진을 이용한 구내방사선촬영기의 선질 평가

이상섭,권혁락,심우현,오승현,이지연,전국진,김기덕,박창서 대한구강악안면방사선학회 2000 Imaging Science in Dentistry Vol.30 No.3

Purpose : This study was to evaluate the beam quality of intraoral X-ray equipments used at Yonsei University Dental Hospital (YUDH) using the half value layer (HVL) and the characteristic curve of intraoral standard X-ray film. Materials and Methods : The study was done using the intraoral X-ray equipments used at each clinical department at YUDH. Aluminum filter was used to determine the HVL. Intraoral standard film was used to get the characteristic curve of each intraoral X-ray equipment. Results : Most of the HVLs of intraoral X-ray equipments were higher than the least recommended thickness, but the REX 601 model used at the operative dentistry department and the X-707 model used at the pediatric dentistry department had HVLs lower than the recommended thickness. The slopes of the characteristic curves of films taken using the PANPAS 601 model and REX 601 model at operative dentistry department, the X-705 model of prosthodontic dentistry department, and the REX601 model at the student clinic were relatively low. Conclusion : HVL and the characteristic curve of X-ray film can be used to evaluate the beam quality of intraoral X-ray equipment. In order to get the best X-ray films with the least radiation exposure to patients and best diagnostic information in clinical dentistry, X-ray equipment should be managed in the planned and organized fashion. (Korean J Oral Maxillofac Radiol 2000; 30: 183-188)

상악 구개측 중앙부에 매복된 과잉치

민성진,최형준,,김성오,이제호,곽지윤,최병재 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.4

과잉치는 치배 형성기에 정상 치판의 과도한 증식의 결과로 발생하며 산발적일 수도 있고 유전적일 수도 있다. 발생 빈도는 1~3%이며,2:1의 비율로 남아에게 호발한다. 주로 상악 전방부에서 많이 발견되며, 매복, 영구치의 위치 이상, 정중부 이개, 낭종, 비강으로의 맹출 등과 같은 다양한 합병증을 나타낼 수도 있다. 상악 전방부에서 발견되어지는 과잉치는 치축방향에 따라 위치가 결정되며 상악 전방부 과잉치의 1/3 정도는 역위 매복되어 맹출의 가능성이 없지만, 치낭의 치관 부위가 정상적인 관계로 존재하는 한 과잉치의 이동이 일어날 수 있다. 치아의 이동은 경구개, 소구치 부위, 비강까지도 일어날 수 있다. 또한 전상악 수직고경의 성장으로 시간이 지남에 라 외과적 접근이 어려워질 수 있다. 이에 본 두 증례에서는 역위 매복된 상악 전방부의 과잉치가 구개 측 중앙부까지 이동된 것을 발견하여 외과적으로 제거하였다. Supernumerary tooth develops as a result of abnormal proliferation of the dental lamina during the initiation stage of dental development. It could be a sporadic occurrence or a hereditary transmission. Supernumerary tooth occurs with a frequency of 1 to 3%, Generally, there is a 2:1 preference for boys. It is usually found in the anterior portion of the maxilla and may be associated with complications such as impaction, malposition of permanent teeth, formation of diastema, cysts and eruption into nasal cavity. The position of supernumerary tooth found in the anterior portion of the maxilla is determined by the axis of the tooth. One third of supernumerary tooth in the anterior portion of the maxilla has no possibility of eruption due to its invertedly impacted position. However, as long as the coronal part of the follicle remain intact, migration of supernumerary tooth is possible. The migration may occur into the palate, the premolar region, the sinus or the nasal cavity. Also, growth of vertical dimension of maxilla could make surgical approach difficult as time goes by. For this reason, we have found invertedly impacted mesiodens moved to the vault of the palate in the two cases, and extracted supernumerary tooth surgically.