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외상 중환자에서 Systemic Inflammatory Response Syndrome(SIRS) 점수와 다른 예후예측 지표들과의 비교
이준호 ( Jun Ho Lee ),이순정 ( Sun Jung Lee ),조광원 ( Kwang Won Cho ),황성연 ( Seong Youn Hwang ),표창해 ( Chang Hae Pyo ) 대한외상학회 2004 大韓外傷學會誌 Vol.17 No.1
Background: Since the systemic inflammatory response syndrome (SIRS) was first introduced in 1992, it has been well-known as an significant indicator to predict the level of severity and outcomes in medical, surgical and trauma patients for the last ten years. There are several other indicators such as triage Revised Trauma Score (t-RTS), Triage Score (TS), Trauma and Injury Severity Score (TRISS), Acute Physiology and Chronic Health Evaluation (APACHE), and Simplified Acute Physiology Score (SAPS) to predict trauma patients` severity and outcomes, and the authors focused on comparing the SIRS with those five other indicators to predict severity and outcome of traumatic intensive care unit (ICU) patients. Material and Method: The retrospective medical records of four hundred forty one consecutive ICU trauma patients from the emergency center, Masan Samsung Hospital from March 2002 and February 2003 have been carefully examined, and among them, three hundred fifty six were included as the target of this research. The t-RTS, TS and TRISS were calculated based on the record from the emergency center and operating rooms while SIRS, APACHE Ⅱ and SAPS Ⅱ were measured by the data for the first twenty four hours after their ICU hospitalization. The predictability of SIRS and other indicators was evaluated by using two by two decision matrices and receiver operating characteristic (ROC) curve analysis. Result: Using injury severity score 15 as the gold standard, the accuracy of SIRS was higher than t-RTS, yet it was not higher than the one of TS (p<0.01). And the areas under the ROC curves of the SIRS, TS and t-RTS were 0.645±0.073, 0.803±0.054 and 0.766±0.054, respectively (p<0.01 vs. SIRS). Using survival as the gold standard, the accuracy of SIRS was remarkably lower than the ones of TRISS, APACHE Ⅱ and SAPS Ⅱ(p<0.01 vs. SIRS). And the areas under the ROC curves of the SIRS, TRISS, APACHE Ⅱ and SAPS Ⅱ were 0.665±0.052, 0.925±0.023, 0.946±0.025, and 0.965±0.017, respectively(p<0.001 vs. SIRS). Conclusion: The authors concluded that even though SIRS was closely related to death rate and injury severity score, yet its predictability was lower than the ones of other indicators mentioned above.
BIM(Building Information Modeling)을 활용한 건축 기획 지원 방안에 관한 연구
함남혁(Ham Nam-Hyuk),문혁(Moon Hyuk),이윤선(Lee Yoon-Sun),김주형(Kim Ju-Hyung),이순정(Lee Soon-Jung),김재준(Kim Jae-Jun) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.7
Construction project pre-design phase is highly influential in setting the directions for the whole business and in project to proceed. Thus, it is essential to collect and analyze enormous amount of data related to construction project. So far, the pre-design phase in a project was depending on experts’ experience and intuition. However, as construction projects become larger and more composite, the amount of related information and analyzed data increases. Therefore, the necessity arises for a plan that could directly support the pre-design phase. In this paper, BIM was suggested as a tool that will support the pre-design phase, and so the concept and role of pre-design BIM is defined. The framework of pre-design BIM simulation is composed using the international standard model IFC and how the pre-design BIM simulation system can support the process is illustrated.
수준별 학습을 위한 퍼지 집합 기반 적응형 교수 시스템
최숙영,소지숙,이순정 한국컴퓨터교육학회 2003 컴퓨터교육학회 논문지 Vol.6 No.2
본 연구는 학습자 수준에 맞는 학습 내용과 평가 문제를 제공하고, 그 평가 결과에 기반하여 반복학습 및 심화학습을 효과적으로 제공하며, 차기 학습을 할 경우에 이에 기초하여 적절한 학습이 이루어질 수 있도록 하는 적응형 웹기반 교수 시스템을 제안한다. 이를 위해 코스웨어 설계시 학습목표의 중요도, 학습내용의 난이도, 학습목표와 학습내용과의 관련도에 따라 퍼지 수준 집합을 구성하고 이를 기반으로 학습자의 수준에 맞는 내용을 제공한다. 또한, 학습의 평가시에도 문제의 난이도, 평가문항과의 관련도를 고려하여 평가 결과를 제시하게 된다. 본 논문에서 제시하는 퍼지 집합에 의한 학습 내용의 제공과 평가 결과는 학습과정에 나타나는 여러 가지 다양하고 불확실한 요소들을 고려하여 처리함으로써 보다 융통성 있고 효과적인 교수 학습 방법을 제공할 수 있도록 한다. This paper proposes a web-based adaptive tutoring system based on fuzzy set that provides learning materials and questions dynamically according to students' knowledge state, and gives advices for the learning after an evaluation. For this, we design a courseware knowledge structure systematically and then construct a fuzzy level set on the basis of it considering importance of learning targets, difficulty of learning materials and relation degree between learning targets and learning materials. Using the fuzzy level set, our system offers Iearning materials and questions to adapt to individual students. Moreover, a result of the test is evaluated with fuzzy linguistic variable. Appling the fuzzy concept to the tutoring system could naturally consider and deal with various and uncertain items of learning environment thus could offer more flexible and effective instruction-learning methods.
유상신,김동익,서상호,이병붕,이순정,김형종 대한혈관외과학회 2000 Vascular Specialist International Vol.16 No.1
Purpose: The objective of this study is to investigate the blood cell motion in human capillary by applying the boundary singularity method. Methods: A particle motion of spherical shape falling in a vertical tube filled with Newtonian fluid is studied by using the boundary singularity method and the experiment. Results and Conclusion: As the eccentric ratio increases up to 0.6, the rotational velocity increases almost linearly and the falling velocity remains constant. However, as the eccentric ratio exceeds 0.6, the rotational velocity incre rapidly and the falling velocity decreases. As the tube radius increases, falling velocity increases and approaches the stokes velocity and the rotational velocity decreases.
복부 대동맥 가성동맥류를 동반한 Behcet 씨 병 : 증례 보고
김동익,이병붕,조진현,이순정,도영수,김덕경 대한혈관외과학회 1999 Vascular Specialist International Vol.15 No.1
Behcet's disease is a multisystem disorder presenting with recurrent oral and genital ulcerations as well as ocular involvement. The etiology and pathogenesis of this disease remain obscure; it is considered an autoimmune disease since vasculitis is the main pathologic lesion and circulating autoantibodies to human oral mucous membrane are found in approximately 50 percent of the cases. Vascular lesions with Behcet's disease may include deep venous thrombosis, superficial thrombophlebitis, arterial obstruction, or arterial aneurysms. Although arterial aneurysmal lesions are uncommon in patients with Behcet's disease, they may pose serious, life-threatening therapeutic problems due to the risk of rupture. Here, we report a case of Behcet' s disease, involving abdominal aorta with review of literature.
만성 하지 허혈증 환자에서 장골동맥 혈관스텐트 삽입 혈관성형술의 임상 경험
김동익,도영수,이병붕,이순정,박광보,주성욱,주인욱,김덕경 대한혈관외과학회 2000 Vascular Specialist International Vol.16 No.1
Purpose: To analysis the results of iliac artery angioplasty with stent placement for the treatment of the chronic lower limb ischemic patients. Methods: One hundred-six stenotic lesions of the iliac artery (87 male, 4 female, age 42-86) were treated with balloon angioplasty and stent placement from February 1995 through March 1999. All patients were symptomatic including claudication, resting pain and tissue loss. Indications for iliac artery stent placement were long segment stenotic lesion ($gt;3 cm), dissection, failed ballaon angioplasty. The pre-stenting and post-stenting clinical records, arteriograms, segmental limb pressure measurements (ankle-brachial and thigh-brachial indexes), and duplex scan were reviewed. The patients were follow up at 1, 3 and 6 month after stent placement and every 6 months thereafter. The Kaplan-Meier survival curve was used to calculate the cumulative patency rates. Results: Patients were followed for up to 45 months (mean 16 months). The technical success rate was 104/106 (98%). The ankle-brachial index or thigh-brachial index improved from 0.64 in pre-stenting to 0.87 in post-stenting. The intraluminal pressure gradient decreased from 21.4 mmHg in pre-stenting to 2.5 mmHg in post-stenting. There was no major complication without 2 immediate stent occlusion. Cumulative primary patencies were 92%, 82%, 74% and 74% at 6, 12, 24 and 36 months. Conclusion: Excellent clinical results were achieved for the iliac artery stent placement for the chronic lower limb ischemic patients. Iliac stenting showed low morbidity and mortality rate, and was safe and effective for the treatment of iliac artery occlusive disease.