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도심재생사업을 위한 로컬 거버넌스가 사회적 자본에 미치는 영향
김영(Kim, Yeong),정규식(Jeong, Gyu-Sik),천성봉(Cheon, Seong-Bong) 한국지역개발학회 2013 韓國地域開發學會誌 Vol.25 No.2
The main target of urban regeneration program is to revitalize declined old downtown in a city. However, there have been analytical problems, in particular, implementation programs in order to attain the ultimate goals as experienced in advanced countries, Japan, Europe, U.S.A. etc. In order to tackle this problems, it is essential that local governance and partnerships for cooperation between public-private sectors and citizens as wells as stake-holders should be considered creating social capitals based on many ideas and techniques. Here, the local governance components are merchant committee, inhabitants committee, NGO, specialists, and civil servants. This paper aims to analyze the influence of local governance on social capital, focused on the urban regeneration projects/programs of old downtown in Masan Hapo District of Changwon City. For the study, we collected 501 questionnaires, but 15 unfulfilled questionnaires were discarded, and, finally 486 collected questionnaires were analyzed by factor analysis. The results of this paper are as follows: The degrees of cooperative decision, solidarity, and recognition are positive effects on the trust for civil servants, NGO, and religious groups. Especially, to increase the trust in society, we need to enhance the degree of cooperative decision. In conclusion, we expect the cooperative decision among the local governance components related in urban regeneration programs, the offering in opportunity to recognize local governance, to contact NGO will be an essential device to increase the trusts, participations, networks, and social tolerance as social capitals.
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256 MDCT의 iDose⁴ 기법을 통한 Coronary Angiography 검사에서의 선량 감소 유용성
소형호(Hyoung Ho So),김인우(In Woo Gim),신희석(Seok Hee Sin),이철(Cheol Lee),천성봉(Seong Bong Cheon),이상화(Sang Hwa Lee) 대한CT영상기술학회 2012 대한CT영상기술학회지 Vol.14 No.2
목적 256MDCT의 icbse⁴ 도입으로 Coronary Angiography에서의 Prospective 기법을 이용한 검사에서 영상에 불필요한 노이즈 제거에 효과적인 영상 재구성 방법인 IR기법을 이용하여 기존보다 선량을 감소하여도 Image Quality 변화없는 Image 획득이 가능한지 알아보고자 한다. 대상 및 방법 2011년 1~12월까지 Chest pain, Aortic dissection, Pulmonary embolism, Myocardial infarction, Angina pectoris 등을 증상으로 내원하신 환자를 대상으로 1~6월까지는 성인 373명(남 214명, 여 159명) 중 부정맥(Arrhythmia), Contrast Artifact, 불규칙한 Heart Rate, 환자를 제외한 300명을 대상으로 256MDCT의 Prospective을 이용한 Step & Shoot Coronary Angiography 검사를 Standard(Filter Back Projection) 기법으로 하였고 7~12월까지는 성인 270명(남 183명, 여 99명) 중 동일한 조건으로 200명을 대상으로 새로 도입된 idose⁴ IR(iterative reconstruction) 기법을 이용하여 Prospective Step & Shoot Coronary angiography 검사를 하였다. 또한 검사한 Contrast 영상에서 Pulmonary Artery에 ROI 설정 후에 SD값을 측정하여 SD값을 각각 측정하였고, 1~6월까지는 120kVp로 고정하고 몸무게에 따라 150~260mAs로 검사하였고 7~12월에는 몸무게에 따라 80~120 kVp 80~180 mAs로 선량을 감소시켜 검사하였다, Image Quality 변화없는 Image 획득하여 DLP값과 SD값을 비교 분석하였다. 결과 iDose IR 기법을 이용한 Coronary Angiography와 Triple R.O 검사 시 노이즈 감소되고 SD값 또한 큰 변화없는 높은 SNR을 보여주었고 약 30% 정도의 선량감소를 나타내었다. 이는 기존의 Coronary 검사와 비교시 iDose IR 기법을 이용한 Triple R/O검사와 CABG 환자의 Coronary 검사의 피폭 선량과 비슷한 DLP값을 보여주어서 피폭선량 감소에 대한 이해를 높일 수 있었다. 결론 idose⁴ IR 기법을 적용하면, SNR이 향상되고, 환자가 받게 될 선량을 감소시키면서 획기적으로 개선된 영상을 얻을 수 있으며 검사를 받게 될 환자분들 한 방시선량의 두려움에서 조금은 벗어날 수 있을 거라고 사료된다. I. Purpose To evaluate dose reduction and image quality comparing by idose⁴ method using in which is the effective image reconstruction method to eliminate unnecessary noise with conventional methods for Coronary Angiography of 256 MDCT II. Materials and methods From January to December 2011, 643patients suspected of chest pain, aortic dissection, pulmonary embolism, myocardial infarction, angina pectoris were included and 143patients with arrhythmia, contrast artifact, irregular heart rate was left out in this study, From January to June Step & Shod: Coronary Angiography and Triple rule out test was performed by prospective method of 256 MDCT in 300 patients(Group1) without idose⁴ method. From July to December the test was performed in 270 patients(Group2) in same way by using idose⁴ method. We set a ROI on left main artery and RCA of acquired images and measured SD value. Group1 was performed with fixed kVp (120 kVp) and changed mAs(150~260 mAs) according to weight. Group2 W3S performed with changed kVp(80~120 kVp) and mAs(80~180 mAs) according to weight as well. After obtaining images without quality difference, DLP value was compared and analyzed. III. Result By using idose⁴ method for Coronary Angiography and Triple rule out test, we obtained the results that make Noise reduce and show high SNR. with undiversified SD value and dose reduction about 30% IV. Conclusion We consider idose⁴ method using IR is helpful to get images upgrading the quality and high SNR improved with decreased exposed dose Besides the patients can be relieved of fear of radiation.
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