전대뇌동맥과 중대뇌동맥 동맥류 수술시 체성감각유발전위의 모니터링의 비교, 분석

최광영,김국기,임영진,김태성,임언,이봉암,Choi, Kwang Yeong,Kim, Gook Ki,Lim, Young Jin,Kim, Tae Sung,Leem, Won,Rhee, Bong Arm 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2

Objectives : The purpose of this study is to evaluate the usefulness of SSEP monitoring during intracranial aneurysm surgery and compare the characteristics of wave change in relation to neurologic changes between ACA aneurysms and MCA aneurysms. Methods : During recent three years(between January 1997 and November 1999), intraoperative SSEP monitoring had been done in 63 operations for intracranial aneurysms. We had monitored the median nerve SSEP during surgery for aneurysms of MCA and the posterior tibial nerve SSEP for aneurysms of ACoA or ACA. A more than 50% reduction of any cortical SEP response was considered to be a significant SEP change, compared to its baseline value before the start of surgery. Changes in the SEPs were categorized as follows : Type IA, no significant amplitude changes without temporary clipping ; Type IB, no significant amplitude changes with temporary clipping ; Type II, significant changes with temporary clipping and complete return to control amplitude ; Type III, significant changes with temporary clipping and incomplete return to control amplitude ; Type IV, significant changes with temporary clipping and more decreased amplitude changes. Results : Among the 63 intraoperative monitoring, there were 37 cases of ACA aneurysms(An), and 26 of MCA An. The temporary proximal arterial occlusion during surgery were performed in 31(83.8%)cases of ACA An, 22(84.6%) of MCA An. Seven of the 31 ACA An(22.6%) and ten of the 22 MCA An(45.5%) had significant changes. The type were as follows : 4 patients with type II and 3 with type III in the ACA An ; 3 patients with type II and 3 with type III and 4 with type IV in the MCA An. In both group type II changes had no new postoperative neurological deficit. All 6 patients with type III had new neurological deficits ; However, One case in the ACA An and two cases in the MCA An. had transient neurologic deficit and improved markedly over the next two months. All 4 type IV changes in the MCA An. had permanant neurologic deficits. Two out of 30 cases(6.7%) in the ACA An. and one out of 16 cases(6.3%) in the MCA An. without significant amplitude change had new neurologic deficit postoperatively. Conclusion : Based on this study, Intraoperative SSEP monitoring during aneurysm surgery would provide useful information for detecting cerebral ischemia. SSEP response during surgery for MCA An. is more sensitive than ACA An. Otherwise, there were no meaningful difference in rate of false negativity.

뇌실복강간 단락술 후 발생한 뇌지주막 낭종 - 증 례 보 고 -

최광영,이봉암,임영진,김태성,김국기,임언,Choi, Kwang Yeong,Rhee, Bong Arm,Lim, Young Jin,Kim, Tae Sung,Kim, Gook Ki,Leem, Won 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2

A 4-month-old female patient admitted because of hydrocephalus. She was premature infant with germinal matrix hemorrhage at gestational period 27 wks. A ventriculoperitoneal shunt with a low-pressure type valve was placed. Follow-up CT scan obtained 3 months after VP shunt placement, revealed a new Lt. middle cranial fossa cyst. The girl was readmitted to hospital at 7 months after VP shunt placement, complaining of lethargy and vomiting. A CT scan was demonstrated a increase in size of a cyst, She subsequently underwent a left-sided pterional craniotomy with partial excision of membrane and cyst fenestration into the basal cisterns. Follow-up CT scan after 18 months revealed reaccumulation of cyst, the girl was reoperated on. After 2 months, the size of cyst was not decreased. Finally, She underwent a cystoperitoneal shunt. Follow-up CT scan after 5 months was demonstrated disappeared cyst and reexpansion of brain parenchyma. We report the development of a symptomatic sylvian fissure arachnoid cyst developed after ventriculoperitoneal shunt.

"허우 샤오시엔" 영화 속에 나타난 이차 프레임 연구

최광영(Choi, Kwang-Young),진승현(Jin, Seung-Hyun) 한국영상제작기술학회 2012 영상기술연구 Vol.- No.17

Hou Hsiao hsien is a leader of "New Cinema" pursuing contemplative media aesthetics as continuously making films of native tendency examining the history of Taiwan and Mainland China, and at the same time a movie director who was greatly affecting on Taiwan motion pictures. This study is for specific examination and analysis on "frame within frame", that is, "second cadre" expressed in the movie by Hou Hsiao hsien. The researcher selected 〈A City Of Sadness〉(1989), 〈Cafe Lumiere〉(2003), and 〈Three Times〉(2005). As the results of reviewing these three movies, it can be known that the second cadre is an effective technique visually emphasizing movie characters and concentrating on mentalities of those characters at the same time. Also, it could be known that the implication of descriptive content or subject and the facts of continuous and repeated events (subject) with the third cadre method took a role of reminding more the story which was structurally repeated. Besides, it could be known that as expressing in combination of the second cadre and perspective, there is a case of creating newer meaning.

‘이와이 슌지’영화 속에 나타난 화면구성 연구

최광영(Choi, Kwang-Young),진승현(Jin, Seung-Hyeon) 한국영상제작기술학회 2015 영상기술연구 Vol.- No.23

With the open the door policy for Japanese pop culture, it has been over 10 years since Japanese movies were officially imported. Starting with “Hana-bi” directed by Kitano Takeshi, The Eel(1997), The shadow warrior(1980), Narayama Bushiko(1982) were sequentially released. Although film audiences had been curious about the Japanese movies long before officially seeing Japanese movies in a movie theater, those movies did not satisfy the audiences’ expectation. Love letter directed by Iwai Shuunji in 1999 dramatically reversed the situation. Love Letter even created a fever of the director Iwai Shuunji. Japanese critics criticized that as Iwai Shuunji was possessed with visualization and focused on the minute detail without the main theme, he just sophisticated the expression and failed facing the reality as it was. However, the young audience response did the opposite and enthusiastically welcomed his contemporary air and sentiment. Therefore, this study demonstrates how Iwai Shuunji uses the Rule a third and a balance through comparing Love Letter (1999) with April Story(2003) and intensively analyzes both of them. This study also reveals how the emotion can be effectively conveyed between movie audience and the mise-en-scene he creates.

가변적 계층구조 SOFM 알고리듬

최광영(Kwang Young Choi),김상희(Sang-Hee Kim),박원우(Won Woo Park) 대한전자공학회 2002 대한전자공학회 학술대회 Vol.2002 No.11

퇴행성 척추 측만증과 척추관 협착증에서 Matrix Metalloproteinase-3 발현의 차이

김영훈(Young-Hoon Kim),하기용(Kee-Yong Ha),길경민(Gyung-Min Kil),최광영(Kwang-Young Choi) 대한정형외과학회 2005 대한정형외과학회지 Vol.40 No.2

목적: 추간판의 기질의 파괴와 퇴행성 변화에 깊이 관여하는 것으로 알려진 세포외 효소인 matrix metalloproteinase-3(MMP-3; stromelysin)을 이용하여 퇴행성 측만증과 측만증이 동반되지 않은 단순 척추관 협착증 환자의 추간판에서의 MMP-3의 발현의 정도를 western blotting과 면역조직화학 염색을 이용 분석하여 추간판 기질의 파괴가 퇴행성 요추 측만증의 병인에 있어서 관련됨을 증명하고자 한다. 대상 및 방법: 추간판 탈출증, 척추관 협착증 및 퇴행성 요추 측만증 환자에서 수술 중 제거한 추간판의 조직을 이용하였다. 모든 조직의 채취는 후방 도달법에 의한 추간판 제거술로 시행되었으며, 채취된 조직은 즉시 액화 질소에 의하여 냉동 보관하였다. 채취된 조직 중 추간판 탈출증 2예를 대조군으로, 척추관 협착증 8예 및 퇴행성 요추 측만증 7예를 대상으로 하였다. Antihuman MMP-3를 이용하여 추간판의 면역화학적 염색과 western blotting을 시행하였다. 결과: 면역조직화학 염색 결과 MMP-3의 발현에 있어서 퇴행성 요추 측만증의 추간판에서 측만증이 동반되지 않은 척추관 협착증의 추간판보다 상당히 많은 양성 염색을 나타내었으며, western blotting 의 정량적 분석에 있어서도 퇴행성 요추 측만증(평균 optical density: 20.68±8.4)에서 척추관 협칙증 (평균 optical density: 6.24±3.6)보다 유의하게 많은 발현을 보였다. 결론: 퇴행성 요추 측만증에 있어서 추간판의 퇴행성 변화와 관계가 깊은 MMP-3의 발현은 단순 척추관 협착증에 비하여 유의하게 많은 발현을 보였다. 따라서 퇴행생 요추 측만증의 병인에 있어서 MMP-3가 추간판의 퇴행성 변화에 중요한 역할을 하는것으로 생각된다. Purpose: This experimental study hypothesize that "rapid degeneration of the intervertebral disc over the ability of auto-stabilization by osteophytes bridging to adjacent segments might be the pathomechanism of degenerative lumbar scoliosis (DLS)." An effort to prove this hypothesis was attempted by confirming the differences in the expression of matrix metalloproteinase-3 (MMP-3) in DLS and pure spinal stenosis. Materials and Methods: The intervertebral disc materials obtained during a discectomy through a posterior approach, were included in this experimental study. Two protruded herniated nucleus pulposus were included for the control group. Eight spinal stenosis and seven DLS were included as experimental groups 1 and 2, respectively. The expression of MMP-3 was evaluated by immunohistochemical staining and western blotting using anti human MMP-3 antibody. Results: In the immunohistochemical stains, sparse staining was noted in the control group. More staining, however, mainly extracelluar, was noted in the discs of DLS compared with those of the spinal stenosis group. In western blotting, greater MMP-3 expression was noted in the discs of DLS (mean optical density: 20.68) than in those of the spinal stenosis group (mean optical density: 6.24) which was statistically significant (p<0.05). Conclusion: Rapid degeneration of the intervertebral disc might be an important factor for the pathogenesis of DLS. MMP-3 could be one of the key enzymes for the rapid degeneration of the intervertebral discs especially in DLS.

족부의 종양성 석회증 -자기 공명 영상 및 조직학적 소견의 2예 증례 보고-

최우성,지종훈,이연수,모하메드샤피,최광영,김원유,오세철,Choi, Woo-Sung,Ji, Jong-Hun,Lee, Yeon-Soo,Shafi, Mohamed,Choi, Kwang-Young,Kim, Won-Yoo,Oh, Sae-Cheal 대한족부족관절학회 2004 대한족부족관절학회지 Vol.8 No.2

Tumoral calcinosis is rarely encountered disease, and most of reported cases involved large joints such as hip or elbow. We report two patients with tumoral calcinosis in the foot. In the 1st case, the lesion was observed at the 1st MP joint of foot, and in the 2nd case it was found at the DIP joint of 5th toe area with bony erosion which is rare in other tumoral calcinosis. They all needed evaluation with MRI, and eventually surgical excision.

가로주택정비사업의 사업성에 관한 연구 -시뮬레이션을 통한 실증분석을 중심으로 -

정대택(Joung, Dae Taek),김행조(Kim, Haeng Jo),최광영(Choi, Kwang Young),김성수(Kim, Sung Soo) 대한부동산학회 2016 大韓不動産學會誌 Vol.34 No.1

This study focuses on Viability Analysis through Simulation based on the Profitability Analysis with the Street Housing-Led Housing Renewal. The spatial range of this study is limited in the Myeonmok-dong Housing Redevelopment Area which area is less than 10,000㎡. The content range is Profitability Analysis of the Street Housing-Led Housing Renewal focused on Viability Analysis based on Simulation. The factor that most influence on the Sensitivity Analysis due to the Proportional Rate is Housing Price. That is the next factor that affects Construction Costs and Floor Area Ratio. In reality, however, upward and downward adjustment of Housing Price and Construction Costs should be calculated in a fair cannot be arbitrarily adjusted according to the real estate market. Realistically than the ways to utilize the Floor Area Ratio factor for the development of the Street Housing-Led Housing Renewal may affect the Feasibility improved. Through this study is presented and the results of main factors that will supply the new homes in the metropolitan area led by discussing alternatives. This can be a solution to the housing shortage and the lease of a house on a deposit basis of the metropolitan area.

미생물 농약과 유기합성 살균제 혼용에 따른 고추 흰가루병 방제 효과

홍성준(Sung-Jun Hong),김정현(Jung-Hyun Kim),김용기(Yong-Ki Kim),지형진(Hyeong-Jin Jee),심창기(Chang-Ki Shim),김민정(Min-Jeong Kim),박종호(Jong-Ho Park),한은정(Eun-Jung Han),구형진(Hyung-Jin Goo),최광영(Kwang-Young Choi) 한국농약과학회 2014 농약과학회지 Vol.18 No.4

This study was conducted to reduce the using amount of chemical fungicides for the control of red-pepper powdery mildew. Effect of combined application of three microbial fungicides and six chemical fungicides for the control of red-pepper powdery mildew was examined in vitro, in pot assay and under field condition. One chemical fungicide (Azoxystrobin+Chlorothalonil) among six chemical fungicides significantly suppressed three microbial fungicides (Bacillus subtilis Y1336, Bacillus subtilis DBB1501, Bacillus subtilis QST-713) registered for the control of pepper powdery mildew in vitro. In the pot assay, two mixed application such as B. subtilis DBB1501+Trifloxystrobin, B. subtilis QST713+Trifloxystrobin among nine mixed applications of three microbial fungicides and three chemical fungicides showed the highest suppressive effect against red pepper powdery mildew. Also, suppressive effect of the mixed application of B. subtilis QST713 and Trifloxystrobin was similar to that of single application of three chemical fungicides(Myclobutanil, Trifloxystrobin, Hexaconazole). In the field test, when the microbial fungicides (B. subtilis DBB1501, B. subtilis QST713) and the chemical fungicide (Trifloxystrobin) for the control of powdery mildew of red pepper were mixed foliar sprayed four times at 7 day-intervals, the control values were in the range of 70.3% to 70.9%. On the other hand, when each of the chemical fungicide (Trifloxystrobin) was foliar sprayed four times at 7 day-intervals, the control value was 72.7%. Consequently, the mixed application of the microbial fungicides and chemical fungicides could be recommended as a one of control measures for reducing the using amount of chemical fungicides.

미생물농약과 유기합성 살균제 혼용에 따른 고추 역병 방제 효과

홍성준(Sung-Jun Hong),김정현(Jung-Hyun Kim),김용기(Yong-Ki Kim),지형진(Hyeong-Jin Jee),심창기(Chang-Ki Shim),김민정(Min-Jeong Kim),박종호(Jong-Ho Park),한은정(Eun-Jung Han),구형진(Hyung-Jin Goo),최광영(Kwang-Young Choi),윤종철(Jong-C 한국농약과학회 2013 농약과학회지 Vol.17 No.4

This study was conducted to reduce the using amount of chemical fungicides for the control of red-pepper Phytophthora blight. Effect of combination application of two microbial fungicides and two chemical fungicides for the control of red-pepper Phytophthora blight was examined in vitro, in greenhouse and under field conditions. Each microbial fungicides and chemical fungicides was two-fold diluted and mixed-soil drenched. In the greenhouse pot assay, the mixed application of B. pumilus QST2808 and a mixture of dimethomorph + ethaboxam (De) among four mixed applications of two microbial fungicides (B. pumilus QST2808, P. polymyxa AC-1) and two chemical fungicides showed the highest control effect against Phytophthora blight. Also, control effect of mixed application of B. pumilus QST2808 and De was similar to that of single application of De (dimethomorph + ethaboxam) or Mo (mancozeb + oxadixyl). In the field test, when the microbial fungicides (B. pumilus QST2808, P. polymyxa AC-1) and the chemical fungicide(De) for the control of Phytophthora blight of red pepper were mixed-soil drenched four times at 7~10 day-intervals, the control values were in the range of 78.8% to 82.0%. On the other hand when each of the two chemical fungicides (De, Mo) were soil drenched four times at 7~10 day-intervals, the control value were 65.7% to 85.8%. Consequently, the mixed application of the microbial fungicides and chemical fungicides could be recommended as a control method for reducing the using amount of chemical fungicides.