Cystic Change in Pulmonary Tuberculosis in an Immunocompetent Adult: A Case Report

고성민,서수지,최원일,전영준 대한영상의학회 2008 대한영상의학회지 Vol.58 No.3

Cystic change associated with pulmonary tuberculosis is rarely encountered, and few reports are available on the radiologic findings of pulmonary tuberculosis presenting as multiple cystic lesions associated with consolidation or bronchohematogenous nodules. The cystic lesions in our pulmonary tuberculosis patient occurred during steroid treatment without antituberculous chemotherapy and progressively increased in size, but subsequently became smaller after the initiation of antituberculous chemotherapy. Herein, we report the chest radiographic and computed tomographic findings of cystic change in pulmonary tuberculosis in an immunocompetent adult.

국내 대학생의 진로개발역량에 관한 연구동향 분석: 국내 학술지 논문을 중심으로

고성민,박윤희 중앙대학교 Human Engagement Institute 2023 역량개발학습연구 Vol.18 No.3

본 연구의 목적은 국내 학술지에 발표된 대학생 대상의 진로개발역량에 관한 연구를 분석함으로써연구의 특징을 파악하고 향후 연구 방향 및 시사점을 제시하는 것이다. 이를 위해 연구 기간을 지정하지 않고 2023년 8월 기준에서 학술정보서비스(RISS)에서 ‘ 대학생’, ‘진로개발역량’ 또는 ‘경력개발역량’ 을 키워드로 사용하여 학술논문 총 25편을 최종 선정하여 분석하였다. 분석 결과를 요약하면 다음과같다. 첫째, 연구물 특성 분석 결과 대학생을 대상으로 한 진로개발역량에 관한 연구는 2002년부터 현재까지 꾸준히 발표됐으며, 2015년에 4편으로 가장 많은 논문이 발표되었다. 게재지별 분석 결과 교육관련 학회에 투고된 논문이 가장 많았다. 둘째, 연구대상은 4년제 대학생을 대상으로 한 연구가 가장많았다. 셋째, 연구주제는 진로개발역량과 관련 변인들의 관계를 밝혀 진로교육의 내실을 강화하는 연구가 가장 많았다. 넷째, 연구방법의 유형은 양적연구가 가장 많았으며 모두 횡단연구를 사용했다. 다섯째, 진로개발역량 측정에는 성희진과 나승일(2012)의 도구가 가장 많이 사용되었으며, 진로개발역량의 하위요인은 자기이해, 전공 및 직업지식, 진로결정 확신도, 의사결정 효능감, 관계활용 효능감, 구직기술이었다. 여섯째, 대학생의 진로개발역량은 종속변인으로 가장 많이 사용되었으며 주로 대학의 진로취업서비스경험, 경력탐색행동, 고용가능성, 전공만족도, 진로결정과 정(+)의 관계를 보였다. 이러한 연구 결과를 바탕으로 대학생의 진로개발역량 연구에 대한 시사점과 향후 연구방향을 제시하였다. 마지막으로 학술지에 작성된 주제어를 워드 클라우드 분석을 진행하였으며 연구주제인 진로개발역량, 대학생, 경력개발역량, 진로역량, 경력개발 등의 주제어가 빈출 횟수가 높았다. 이러한 연구 결과를 통해 앞으로 연구에 대한 제안과 시사점을 기술하였다 The purpose of this study was to analyze research trends on the career development competencies of college students in South Korea. A total of 25 papers were analyzed, selected from the Academic Information Service (RISS) using keywords 'undergraduate' or ‘college’ and 'career development competencies'. Key findings are as follows. First, studies on career development competencies of college students have been consistently published since 2002, peaking in 2015, primarily in education-related journals. Second, the majority of research subjects were 4-year college students. Third, most studies focused on enhancing career education by exploring the relationship between career development competencies and related variables. Fourth, in terms of research method, it was found that quantitative research conducted as cross-sectional studies were the most. Fifth, the measures of Heejin Sung and Seung-il Na(2012) were the mostly used to measure the career development competencies. In addition, the sub-factors were self-understanding, major and occupational knowledge, career decision certainty, decision-making efficacy, relationship utilization efficacy, and job search skills. Sixth, career development competencies of college students were most often used as a dependent variable and had a positive relationship with employment support service experience, career exploration behavior, employment possibility, major satisfaction, and career decision-making. Based on the research findings, several future research directions in the area of the career development competencies are provided.

Primary Surgical Closure Should Be Considered in Premature Neonates with Large Patent Ductus Arteriosus

고성민,윤영철,조광현,이양행,한일용,박경택,황윤호,전희재 대한흉부외과학회 2013 Journal of Chest Surgery (J Chest Surg) Vol.46 No.3

Background: Treatment for patent ductus arteriosus (PDA) in premature infants can consist of medical or surgical approaches. The appropriate therapeutic regimen remains contentious. This study evaluated the role of surgery in improving the survival of premature neonates weighing less than 1,500 g with PDA. Materials and Methods: From January 2008 to June 2011, 68 patients weighing less than 1,500 g with PDA were enrolled. The patients were divided into three groups: a group managed only by medical treatment (group I), a group requiring surgery after medical treatment (group II), and a group requiring primary surgical treatment (group III). Results: The rate of conversion to surgical methods due to failed medical treatment was 67.6% (25/37) in the patients with large PDA (≥2 mm in diameter). The number of patients who could be managed with medical treatment was nine which was only 20.5% (9/44) of the patients with large PDA. There was no surgery-related mortality. Group III displayed a statistically significantly low rate of development of bronchopulmonary dysplasia (BPD) (p=0.008). The mechanical ventilation time was significantly longer in group II (p=0.002). Conclusion: Medical treatment has a high failure rate in infants weighing less than 1,500 g with PDA exceeding 2.0 mm. Surgical closure following medical treatment requires a longer mechanical ventilation time and increases the incidence of BPD. Primary surgical closure of PDA exceeding 2.0 mm in the infants weighing less than 1,500 g should be considered to reduce mortality and long-term morbidity events including BPD.

수소충전소 입지 최적화를 활용한 수소연료자동차 시장수요예측

고성민,신정우 대한산업공학회 2020 대한산업공학회 추계학술대회논문집 Vol.2020 No.11

기계적 처리방식에 따른 왕겨의 섬유화 연구

고성민,한정수,성용주 한국펄프·종이공학회 2023 펄프.종이기술 Vol.55 No.1

We investigated the effect of mechanical treatments on the defibration behavior of rice husk for determining the optimal condition for the production of the non-woody fibers. The investigation examined the behavior of rice husk defibration under different mechanical treatment methods, levels of solid consistency, and working temperatures. Two types of mechanical treatment methods including the traditional valley beater and the high speed grinder were applied for this study. Higher impact by high speed grinder generated more amount of fibers and fines, respectively than those by the valley beater. In the same mechanical treatment method, the higher solid consistency and the higher working temperature could promote more fiber generation. Consequently, this study showed the possibility of the effective production of non-woody cellulose fiber from rice husk by mild alkaline pretreatment and following optimal mechanical defibration condition. .

Assessment of Left Ventricular Myocardial Diseases with Cardiac Computed Tomography

고성민,김태훈,Eun Ju Chun,Jin Young Kim,황성호 대한영상의학회 2019 Korean Journal of Radiology Vol.20 No.3

Rapid advances in cardiac computed tomography (CT) have enabled the characterization of left ventricular (LV) myocardial diseases based on LV anatomical morphology, function, density, and enhancement pattern. Global LV function and regional wall motion can be evaluated using multi-phasic cine CT images. CT myocardial perfusion imaging facilitates the identification of hemodynamically significant coronary artery disease. CT delayed-enhancement imaging is used to detect myocardial scar in myocardial infarction and to measure the extracellular volume fraction in non-ischemic cardiomyopathy. Multi-energy cardiac CT allows the mapping of iodine distribution in the myocardium. This review summarizes the current techniques of cardiac CT for LV myocardial assessment, highlights the key findings in various myocardial diseases, and presents future applications to complement echocardiography and cardiovascular magnetic resonance.

The Diagnostic Accuracy of the 64-slice Multi-detector CT Coronary Angiography for the Assessment of Coronary Artery Stenosis in Symptomatic Patients

고성민,이정근,남창욱,김동훈 대한영상의학회 2008 대한영상의학회지 Vol.59 No.4

Purpose: We evaluated the diagnostic accuracy of a 64-slice multi-detector CT (MDCT) coronary angiography against a conventional coronary angiography (CCA) for the detection of significant stenosis (≥50% lumen diameter narrowing). Materials and Methods: Sixty-four patients underwent a MDCT and a subsequent CCA to evaluate the presence of atypical chest pain or suspected coronary artery disease (CAD). A MDCT angiography was performed using a 64-slice MDCT-scanner (Sensation 64, slice collimation 32×0.6 mm). The coronary artery segments were classified according to a 15-segment model. The sensitivity, specificity, and diagnostic accuracy of the 64-slice MDCT for the detection or exclusion of significant CAD were calculated on a per-segment and per-patient basis. Results: Fifty-nine of the 64 (92%) coronary CT angiograms were of diagnostic image quality with 93.5% (809 of 865) of the coronary segments assessable by CT angiography. One-hundred two (12.6%) segments showed significant stenosis by CCA. Stenosis of 50% or greater was detected by sensitivity, specificity, accuracy, positive predictive valve, and negative predictive value on a per segment basis (89%, 99%, 97%, 90%, and 98%, respectively) and a per-patient basis (96%, 69%, 90%, 92%, and 82%, respectively). Conclusion: The 64-slice MDCT coronary angiography demonstrated a high diagnostic accuracy for both the per-segment and per-patient analyses for this symptomatic patient group.

안정형 협심증 환자들에서 관상동맥 전산화단층촬영을 이용한 심근허혈의 평가

고성민 대한영상의학회 2020 대한영상의학회지 Vol.81 No.2

Assessment of myocardial ischemia in patients with stable angina is important in deciding whether to treat coronary artery disease and in predicting clinical outcome. The fractional flow reserve is a standard reference for the diagnosis of myocardial ischemia, but this procedure has limitations because of its invasiveness. Coronary computed tomography angiography (CCTA) is now an established tool in the anatomic diagnosis of coronary artery disease; however, there are limits to the diagnosis of hemodynamically important stenosis that causes myocardial ischemia. In order to address this problem, studies using quantification of coronary atherosclerotic plaques, myocardial perfusion, and noninvasive calculation of fractional flow reserve based on CCTA have been actively conducted and recognized for their diagnostic value. In this review, several imaging techniques of CCTA used to assess myocardial ischemia are described. 안정형 협심증 환자에서 관상동맥질환의 치료 여부를 결정하고 임상 결과를 예측하기 위해서는 심근허혈의 평가가 중요하다. 현재 심근허혈 진단의 표준검사법으로 분획혈류예비력검사법이 인정되나 침습적 검사라는 제한점이 있다. 또한, 관상동맥 전산화단층촬영은 형태적인 관상동맥질환 진단에 유용한 방법으로 정립되었지만, 혈역학적으로 유의한 협착에 의한 심근허혈 진단에는 한계가 있다. 최근 이러한 문제를 해결하고자 관상동맥 전산화단층촬영 영상을 기반으로 측정한 관상동맥 죽상경화판의 정량화, 심근관류, 그리고 심근 분획혈류예비력을 이용한 연구들이 진행되어 왔고, 그 진단적 가치를 점차 인정받고 있다. 본 종설에서는 심근허혈진단과 관련된 관상동맥 전산화단층촬영 혈관조영술의 여러 영상기법들에 대해서 알아보고자 한다.

Case report: Piperacillin/tazobactam-Induced Hypokalemia

고성민,김선빈 대한내과학회 2021 대한내과학회 추계학술대회 Vol.2021 No.1

비강에 발생한 골내 혈관종

고성민,최지은,정승규,김효열 대한비과학회 2020 Journal of rhinology Vol.27 No.1

Osseous hemangioma typically occurs in the vertebral column or skull bones. It it is extremely rare in the nasal bone. Only nine cases originating in the turbinate and maxillary bone have been reported in the English and Korean literature. Herein, we present the case of a 51-year-old women with a dorsum mass to share our experience with intraosseous hemangioma successfully removed and reconstructed by an endonasal approach.