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급성 관동맥 증후군 환자에서 Colr M-mode 심초음파의 좌심실 이완기능 평가능
한주엽,박용휘,양동헌,서영배,박헌식,채성철,전재은,박의현 한국심초음파학회 2001 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.9 No.2
Background:Color M-mode doppler echocardiography has been suggested as a new noninvasive technique for assessing left ventricular diastolic function. The present study was performed to define the feasibility and value of color M-mode echocardiography for the assessment of left ventricular diastolic function in patients with acute coronary syndrome. Methods:Thirty six patients with acute myocardial infarcion and twenty three patients with unstable angina were included (M/F=41/18, 61±12.2 years). Doppler study was performed using ATL HDI-3000 within 24 hours after the attack. In color M-mode study, ROP was measured with ‘Front wave method’ and ‘Baseline shift method’. The patients were grouped into three groups based on E/A ratio and deceleration time (DT) in transmitral flow and S/D ratio in pulmonary venous flow;Group I = Normal pattern (E/A>1, S/D>1, DT>140 ms), Group II =Impaired relaxation pattern (E/A<1, DT>140 ms) and Group III =Pseudonormal/Restrictive pattern (E/A>1.5, S/D<1, with or without DT≤140 ms). Result:Twenty two, thirty four, and three patients were assigned to Group I, II, III, respectively. The ROP could be measured with ‘Front wave method’ in 50 patients (84.7%), but with ‘Baseline shift method’ only in 19 patients (32.2%). ROP with ‘Front wave method’ was 65±25.7, 61±35.6, 71±35.2 cm/sec in Group I, II, III, respectively. There was no statistically significant difference in the value of ROP between group I and II (p>0.05). Conclusion:The ROP seems not to reflect the diastolic function in acute coronary syndrome,although it is measurable with the ‘Front wave method’ in most cases. The measurement of the ROP with‘Baseline shift method’is not feasible in the patients with acute coronary syndrome. 배 경: 허혈성심질환의 좌심실 이완기능을 평가하는 방법으로 심도자법과 도플러 심초음파 검사가 일반적으로 사용되고 있으나 임상적인 제한점이 적지 않다. 본 연구에서는 급성 관동맥 증후군 환자의 이완기능 장애를 확인하는 방법으로 Color M-mode 도플러 심초음파의 임상 적용 가능성에 대해 알아보고자 하였다. 방 법: 급성 관동맥 증후군으로 본원을 방문한 환자 가운데 간헐파형 도플러검사상 승모판 혈류검사와 폐정맥 혈류검사가 가능했던 59명의 환자를 대상으로 내원 24시간 내에 ATL HDI-3000을 이용한 도플러 심초음파 검사를 시행하고 정상군(Normal:E/A>1, S/D>1,DT>140 ms), 이완기 장애군(Impaired relaxation:E/A<1, DT>140 ms), 가정상 혹은 제한성 장애군(Pseudonormal or Restrictive:E/A>1.5, S/D<1, with or without DT≤140 ms)으로 분류하였다. 각 군의 간헐파형 도플러 심초음파상의 지표들과 Color Mmode 도플러 심초음파상의 ROP(rate of propagation)값과의 관계를 알아보았다. 결 과: 간헐파형 도플러 심초음파 검사상 정상군은 22명,이완기 장애군은 34명, 가정상 혹은 제한성 장애군은 3명이었다. Color M-mode도플러 심초음파도를 이용한 ROP의 측정에서는 front wave method로는 50례 (84.7%)에서 측정이 가능하였으나 baseline shift method는 19례(32.3%)에서만 측정이 가능하였다. Front wave method로 측정한 ROP의 값도 정상군과 이완기 장애군 간에 통계적으로 유의한 차이를 보이지 않았다. 결 론: 대부분의 환자에서 front wave method를 이용한 ROP의 측정은 가능하였으나 급성 관동맥 증후군 환자의 좌심실 이완기능을 반영하는 단독지표로는 적합하지 않을 것으로 생각되며 baseline shift method를 이용한 ROP의 측정은 급성 관동맥 증후군 환자에서 유용하지 못한 것으로 생각된다.
한주엽 ( Joo Yup Han ),이민부 ( Min Boo Lee ) 한국지형학회 2012 한국지형학회지 Vol.19 No.1
Human responses, such as construction of levees, are a spatial representation of the place vulnerability which is induced by a geomorphic hazard like flooding. Human responses include all forms of human activities to reduce the place vulnerability and they seem to be related with reducing vulnerability rather than reducing geomorphic hazards. Diverse human responses to the perceived environment bring about changes in the place vulnerability. People respond spatially to their vulnerability of the place in diverse ways from their experience and perceived risk. Human responses have quantitative possibilities in predicting and modeling the place vulnerability. Building the model of a dynamic place vulnerability to the diverse geomorphic hazards requires basic maps of geomorphic processes and human responses in the region.
이민부,한주엽 한국환경교육학회 1995 環境 敎育 Vol.8 No.1
1. This paper suggests one educational model of National Parks. The model includes main themes such as (1) concepts, (2) waste types, and (3) conservation policies of National Parks for the application at the school environmental education classes. 2. The study describes the origin of the national park system and concepts or policies for the conservation of the parks with cases of Japan, Taiwan, Canada, Australia, Swiss, Russia, and International Union for the Conservation of Nature and Natural Resources(IUCN). The main focuses of their concepts or policies are on the (1) public land, (2) conserved, (3) legally protected land, and (4) land for the education of the loving their country. 3. This research classifies wastes of parks as point, linear, areal, and cubic types, and explains wasting actions on each types, focused mainly on the mountainous national parks. 4. The suggested policies for the conserving national parks, in this paper, are (1) core-zoning policy, and (2) management policy within the core zone. 5. Some principles are suggested for the more effective realization of the policies: (1) enforcement, (2) abandonment,(3) restoration, (4) enlargement, (5) limitation, (6) incorporation, (7) monitoring, and (8) education. 6. Finally, the educational values of this model may be derived from concepts of (1) loving national land, (2) conservation of nature, (3) public responsibility for protection, and (4) education materials. Those concepts form the foundation of models for (1) civic education, (2) education of country, and (3) inquiry training.