• 산업융합연구
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• 제18권2호
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• pp.9-18
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• 2020

본 연구의 목적은 간호대학생의 환자안전간호와 관련된 요인을 융·복합적 측면에서 체계적으로 고찰하고, 메타분석을 통해 관련 요인의 효과크기를 파악하는 것이다. 연구방법은 문헌검색은 Medline, Embases, CINAHL, DBpia, Research Information Service System(Riss), Korean Studies Information Service System(Kiss)을 이용하였으며, 국외 데이터베이스는 MeSH용어와 Emtree를 활용하여 검색하였다. 검색식은 [(patient safety or patient harm or safety management) and (students, nursing)] or [(patient safety or patient harm or safety management) and (education, nursing, graduate)] 이었다. 문헌선정은 PRISMA(Preferred Reporting Items for Systematic Reviews and Meta-Analyses)를 이용하였다. 연구결과 관련 요인으로는 간호수행, 지식, 태도, 자신감, 인식 및 인지 등이 확인되었고, 그 중 환자안전간호 수행과 관련성이 높은 요인에는 자신감, 태도, 인식, 지식 순으로 파악되었다.

• Perspectives in Nursing Science
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• 제10권2호
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• pp.158-166
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• 2013

Purpose: This study was conducted to investigate patient safety regulations and guidelines in order to understand their current status, and to examine support measures to improve patient safety in Korean hospitals. Methods: The participants were the safety officers from hospitals with 200 or more beds and 112 hospitals responded to the online survey. The questions covered patient safety regulations, the performance level of patient safety activities, patient safety incident reporting systems, the dedicated professional, training, support mechanisms, and expectations of reporting systems. Results: Among preventative measures, fall prevention and hand hygiene were reported to be most widely practiced (92% and 91%, respectively). Time-out for invasive procedures showed a relatively low practice rate at 70%. Among patient care activities, transfusion, surgery and sedation, medication, and infection management were performed by 84, 74, 93 and 93% of the hospitals, respectively. Patient safety activities included patient safety committee, patient safety cooperation between decision-making bodies, patient safety workshops, seminars, lectures, and training for employees. Conclusion: Patient safety regulations and guidelines have not yet been sufficiently prepared, and a public institution such as a certification authority is of crucial importance to enforce these guidelines.

• Journal of Communications and Networks
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• 제15권1호
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• pp.77-86
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• 2013

Cognitive radio (CR) has emerged as one of effective methods to enhance the utilization of existing radio spectrum. Main principle of CR is that secondary users (SUs) are allowed to use the spectrum unused by primary users (PUs) without interfering PU's transmissions. In this paper, PUs operate on a slot-by-slot basis and SUs try to exploit the slots unused by PUs. We propose OSA protocols in the single channel and we propose an opportunistic spectrum access (OSA) protocols in the multi-channel cognitive radio networks with one control channel and several licensed channels where a slot is divided into contention phase and transmission phase. A slot is divided into reporting phase, contention phase and transmission phase. The reporting phase plays a role of finding idle channels unused by PUs and the contention phase plays a role of selecting a SU who will send packets in the data transmission phase. One SU is selected by carrier sense multiple access / collision avoidance (CSMA/CA) with request to send / clear to send (RTS/CTS) mechanism on control channel and the SU is allowed to occupy all remaining part of all idle channels during the current slot. For mathematical analysis, first we deal with the single-channel case and we model the proposed OSA media access control (MAC) protocol by three-dimensional discrete time Markov chain (DTMC) whose one-step transition probability matrix has a special structure so as to apply the censored Markov chain method to obtain the steady state distribution.We obtain the throughput and the distribution of access delay. Next we deal with the multi-channel case and obtain the throughput and the distribution of access delay by using results of single-channel case. In numerical results, our mathematical analysis is verified by simulations and we give numerical results on throughput and access delay of the proposed MAC protocol. Finally, we find the maximum allowable number of SUs satisfying the requirements on throughput and access delay.

• 한국융합학회논문지
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• 제13권1호
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• pp.109-118
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• 2022

본 연구의 목적은 뇌손상 환자의 상지 움직임 평가와 인공지능 융합연구를 체계적 문헌고찰 방법으로 분석하여 인공지능의 적용에 대한 경향을 파악하고자 한다. 연구수행은 PRISMA(Preferred Reporting Items for Systematic Reviews and Meta-Analyses)가이드라인을 이용하여 수행되었다. 3개의 데이터베이스에서 검색된 380편 중 선정기준 및 배제기준에 따라 최종적으로 8편의 논문을 선정하였다. 상지 움직임 평가는 동작 수행 능력 평가와 FMA, ARAT가 사용되었다. 정량화를 위해 다양한 도구를 사용하여 데이터를 추출하였고, 인공지능을 이용해 상지 움직임 분류, 회복예후 예측, 평가도구 점수를 예측하였다. 본 연구는 인공지능을 이용해 상지 움직임 평가를 객관적으로 나타낸 연구들을 체계적으로 고찰하여 인공지능이 적용되고 있는 방향성을 파악했다는 점에서 의의가 있다. 이를 토대로 상지 움직임 평가에서 인공지능 기술을 도입하여 중재 효과와 환자의 회복을 객관적으로 파악하는데 도움이 될 것으로 기대한다.

• Korean Journal of Radiology
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• 제23권12호
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• pp.1290-1300
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• 2022

Objective: "Diagnostic yield," also referred to as the detection rate, is a parameter positioned between diagnostic accuracy and diagnosis-related patient outcomes in research studies that assess diagnostic tests. Unfamiliarity with the term may lead to incorrect usage and delivery of information. Herein, we evaluate the level of proper use of the term "diagnostic yield" and its related parameters in articles published in Radiology and Korean Journal of Radiology (KJR). Materials and Methods: Potentially relevant articles published since 2012 in these journals were identified using MEDLINE and PubMed Central databases. The initial search yielded 239 articles. We evaluated whether the correct definition and study setting of "diagnostic yield" or "detection rate" were used and whether the articles also reported companion parameters for false-positive results. We calculated the proportion of articles that correctly used these parameters and evaluated whether the proportion increased with time (2012-2016 vs. 2017-2022). Results: Among 39 eligible articles (19 from Radiology and 20 from KJR), 17 (43.6%; 11 from Radiology and 6 from KJR) correctly defined "diagnostic yield" or "detection rate." The remaining 22 articles used "diagnostic yield" or "detection rate" with incorrect meanings such as "diagnostic performance" or "sensitivity." The proportion of correctly used diagnostic terms was higher in the studies published in Radiology than in those published in KJR (57.9% vs. 30.0%). The proportion improved with time in Radiology (33.3% vs. 80.0%), whereas no improvement was observed in KJR over time (33.3% vs. 27.3%). The proportion of studies reporting companion parameters was similar between journals (72.7% vs. 66.7%), and no considerable improvement was observed over time. Conclusion: Overall, a minority of articles accurately used "diagnostic yield" or "detection rate." Incorrect usage of the terms was more frequent without improvement over time in KJR than in Radiology. Therefore, improvements are required in the use and reporting of these parameters.

• 대한영상의학회지
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• 제84권1호
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• pp.75-91
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• 2023

전립선영상 판독과 자료체계 버전 2.1에서는 다중 매개 자기공명영상(multiparametric MRI; 이하 mpMRI)을 사용하는 버전 2의 기술적인 변수와 영상 판독 기준이 개정되었다. 이러한 변화를 통해 전립선암 평가의 발전이 예상지만, 어떤 사항들은 아직까지 해결되지 않았고 새로운 문제점들이 부각되고 있다. 본 종설에서는 전립선영상 판독과 자료체계 2.1 버전의 간단한 개요와 새롭게 부상하는 다음과 같은 문제들에 대해 비판적인 관점에서 논의하고자 한다: mpMRI의 보다 자세한 프로토콜에 대한 필요, 개정된 이행부 판독기준에 대한 검증 부족, 개정된 확산강조영상 및 조영 증강 영상 판독기준, anterior fibromuscular stroma, 중심부 평가, 주변부 신호 및 종양 공격성, 구조화된 판독문 변화에 대한 명료화의 필요, 영상 품질과 수행능력 제어에 대한 필요 및 기타 적응증을 포함하도록 시스템 확장을 위한 적응증.

• 간호행정학회지
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• 제19권5호
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• pp.613-621
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• 2013

Purpose: To identify the extents of nursing professionalism, clinical decision making abilities and job performance of advanced practice nurses and investigate the relationship among the variables Methods: Participants, selected by a convenience sampling method, were 135 advanced practice nurses working in 4 tertiary care general hospitals in 'B' Metropolitan City and in 1 tertiary care general hospital in 'J' city. Data collection was done from January 15 to February 28, 2013 using self-reporting questionnaires. Results: The average score for nursing professionalism of study participants was $81.19{\pm}7.56$. for clinical decision making abilities, $140.42{\pm}9.62$ and for job performance, $102.54{\pm}10.30$. These averages are relatively high. The relationship between the extent of nursing professionalism and the extent of clinical decision making abilities showed an intermediate level positive correlation (r=.45, p<.001). The relationship between the extent of nursing professionalism and the extent of job performance was also an intermediate level positive correlation (r=.42, p<.001). The extent of clinical decision making abilities and the extent of job performance was an intermediate level positive correlation (r=.41, p<.001). Conclusion: Developing a program, which can improve nursing professionalism and clinical decision making abilities of nurse, is required to enhance their job performance.

• 한국융합학회논문지
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• 제9권8호
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• pp.343-353
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• 2018

본 연구의 목적은 임상간호사의 감정노동, 전문직업성이 간호업무성과에 미치는 영향을 살펴보고, 이들 간의 관계에서 사회적 지지의 조절효과를 검증하고자 하였다. 서울시에 있는 500병상 이상 종합병원에 근무하는 간호사 230명을 대상으로 자기기입식 설문조사를 통하여 자료를 수집하였으며, 위계적 다중선형회귀분석을 실시하였다. 분석결과 간호업무성과에 영향을 미치는 변수는 현 부서에서의 근무경력, 전문직업성, 감정노동 빈도. 표면행위로 나타났다. 또한 사회적 지지는 감정노동의 진심행위와 간호업무성과 간에 긍정적 조절효과가 있었다. 본 연구를 통하여 간호관리자는 간호업무성과를 높이기 위하여 간호사의 전문직업성과 사회적 지지를 높이는 간호인력관리 전략을 수립하고, 감정노동의 진심행위를 더 많이 할 수 있도록 간호조직문화를 형성할 필요가 있음을 알 수 있었다.

• 여성건강간호학회지
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• 제16권1호
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• pp.37-46
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• 2010

Purpose: This study aims to identify differences in breast self-examination (BSE) performance and influencing factors between woman-groups under and over 45 years old. Methods: The subjects were 152 women aged from 35 to 65, who were recruited through convenient sampling in a metropolitan city. They were divided into two groups: under and over 45 years old. The data were collected using self-reporting questionnaires and analyzed by $x^2$ test, t-test, Pearson's correlation coefficient, and stepwise multiple regression. Results: Experience of BSE education ($x^2$=4.68, p=.030), BSE performance ($x^2$=20.12, p<.001), confidence (t=-2.97, p=.003), and self-efficacy (t=-2.44, p=.016) were significantly higher in the group over 45 years (the older group) than the one under 45 years (the younger group). Self-efficacy (${\beta}$=.346, p=.004) and susceptibility (${\beta}$=.238, p=.002) were 17.6% of the variance in the younger group's BSE performance. On the other hand, significantly influencing factors on the older group's BSE performance were self-efficacy (${\beta}$=.500, p<.001) and BSE education (${\beta}$=.217, p<.001), which accounted for 25% of the variance in the BSE performance. Conclusion: We conclude that differentiated strategies of considering age should be established in nursing intervention to detect breast cancer early.

• 한국직업건강간호학회지
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• 제25권2호
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• pp.118-129
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• 2016

Purpose: This study aims to examine the levels of the perception and work performance of patient safety based on the healthcare accreditation criteria among long-term care hospital nurses. Methods: A cross-sectional study was performed using questionnaires. Out of 205 criteria, 39 items relevant to patient safety were selectively adapted for this study. Data were analyzed with descriptive statistics, t-test, ANOVA, and Pearson correlation coefficient. Results: The mean scores of perception and work performance were 4.36 and 4.24 out of 5, respectively, and the difference between them was significantly different (t=5.78, p<.001). The two variables were both significantly higher among those nurses who were older, married, head nurses, had many nursing experiences, and aware of Healthcare Accreditation than the other nurses. Positive correlations were observed between perception and work performance in all three sub-systems. The relations between these two in the patient care system was the most highly correlated (r=.894, p<.001). The lowest scores of perception and work performances were fire-related criteria (i.e., reporting). Conclusion: Overall, subject's perception proves to be higher than their work performance. It is necessary to develop some viable environment and training programs to enhance their work performance up to the level of their perception of patient safety.