• Imaging Science in Dentistry
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• 제44권1호
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• pp.1-6
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• 2014

Professionals performing radiographic examinations are responsible for maintaining optimal image quality for accurate diagnoses. These professionals must competently execute techniques such as film manipulation and processing to minimize patient exposure to radiation. Improper performance by the professional and/or patient may result in a radiographic image of unsatisfactory quality that can also lead to a misdiagnosis and the development of an inadequate treatment plan. Currently, the most commonly performed extraoral examination is panoramic radiography. The invention of panoramic radiography has resulted in improvements in image quality with decreased exposure to radiation and at a low cost. However, this technique requires careful, accurate positioning of the patient's teeth and surrounding maxillofacial bone structure within the focal trough. Therefore, we reviewed the literature for the most common types of positioning errors in panoramic radiography to suggest the correct techniques. We would also discuss how to determine if the most common positioning errors occurred in panoramic radiography, such as in the positioning of the patient's head, tongue, chin, or body.

• 노인간호학회지
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• 제20권3호
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• pp.204-216
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• 2018

Purpose: The purpose of this study was to examine effects of a muscle strength reinforcement exercise program (MSREP) for older adult patients with hemodialysis (OAPHD) which was designed to improve health status and quality of life of these older adult patients. Methods: Participants were 40 patients with OAPHD: 20 in the experimental group and 20 in the control group. MSREP was conducted with the experimental group for 12 weeks at H geriatric hospital. An assessment was done to determine effects on physical performance, inflammation index, fatigue, muscle strength and quality of life. Short physical performance battery, C-Reactive Protein (CRP), visual analog scale for fatigue, object lifting' proposed by the Life Options Rehabilitation Advisory Council, sit-to-stand test, and quality of life index were used to gather data. Results: Between the 2 groups there was no significant difference in scores for physical performance, fatigue or quality of life. However, the 2 groups showed significant difference in CRP values and muscle power scores on post-test. Conclusion: Findings provide evidence for the potential utility of education for older adult patients with hemodialysis. Also, this program could allow these patients to increase muscle strength, and contribute to achieving better health conditions in OAPHD care.

• The Journal of Korean Physical Therapy
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• 제33권2호
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• pp.114-121
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• 2021

Purpose: This study examined the effects of therapeutic massage (TMP) and home exercise program (HEP) on pain, range of motion (ROM), depression, and quality of life (QOL) after arthroscopic rotator cuff repair in middle-aged women. Methods: Nineteen middle-aged women who underwent arthroscopic rotator cuff repair were enrolled in the study. All subjects were assigned randomly to the experimental group (n=9) or the control group (n=10). The subjects in both groups performed HEP for 30 minutes, three times per day, for eight weeks. The subjects in the experimental group also performed HEP, with TMP being performed for 30 minutes, 16 sessions for eight weeks. All subjects were evaluated with a visual analogue scale (VAS), shoulder ROM, self-rating depression scale (SDS), and Korean brief version of WHO quality of life scale (WHOQOL-BREF). A paired t-test was performed to test the significant differences between before and after the intervention. An independent t-test was conducted to test the significant differences between the groups. Results: Following the intervention, both groups showed significant differences than before the intervention in the VAS, shoulder ROM, SDS, and WHOQOL-BREF (p<0.05). There were significant differences in the ROM of shoulder flexion, SDS, and WHOQOL-BREF between the groups (p<0.05). Conclusion: These findings suggest that intensive TMP is an effective method for improving shoulder flexion mobility, depressive symptom, and QOL in middle-aged women after arthroscopic rotator cuff repair.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2004년도 Proceedings of the 4th Korea-China Joint Workshop on Nuclear Waste Management
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• pp.170-181
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• 2004

DUPIC powder and pellets were successfully fabricated in accordance with the quality assurance program described in the Quality Assurance Manual for DUPIC fuel fabrication, which was developed on the basis of the CAN3-Z299.2-85 standard. This manual describes the quality management system applicable to the activities performed for DUPIC fuel fabrication. It covers the work processes, policies and procedures used for planning, executing, and verifying the work carried out for DUPIC fuel fabrication. It is important that a Quality Program is in place before the fabrication of the fuel for irradiation testing. In order to qualify the DUPIC pellet manufacturing processes, 3 series of experiments for the pre-qualification and 3 series for the qualification were performed. In these experiments, the optimum process conditions were established. Then, under the control of the QA program, 8 series of production runs were performed to make the qualified DUPIC pellets in a batch size of 1 kg. In these production runs, DUPIC fuel pellets satisfying the standard CANDU fuel pellet specifications could be successfully produced.

• 한국산업보건학회지
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• 제5권1호
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• pp.87-103
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• 1995

Since being granted permission for self-assessment of the work environment by the Department of Labor in 1992, POSCO's Industrial Hygiene Laboratory has participated in domestic and Foreign Quality Control Programs 8 times and has obtained remarkable results. It has made a lot of effort to be a proficient laboratory with the ability to observe and analyse environmental monitoring data. The summary of results is as follows: 1. POSCO's Industrial Hygiene Laboratory has received a "P(Proficient)" grade from the round 115 to round 119 of AIHA/NIOSH PAT Program for analysis of such metals as lead, cadmium, zinc, and chromium, and also has received a "P(Proficient)" grade from its round 119 of for organic solvent analysis, i,e,. Trichloroethylene(TCE), Carbon Tetr-achloride(CTC), 1,2-Dichloroethane(DCE), 1,1,1-Trichloroethane(MCM), Tetrachloroethylene (PCE), Chloroform(CFM), Benzene(BNZ), toluene(TOL), and O-xylene(OXY). 2. In the Quality Control Evaluation Program performed by the Industrial Health Research Institute,Korea Industrial Safety Corporation, POSCO has passed impressively in the3-metal analysis test for lead, cadmium, cupper, and in the 6 organic solvent analysis test for Benzene(BNZ), toluene(TOL), O-xylene(OXY), Trichloroethylene(TCE) and Methyl isobutyl keton(MIBK), n-Hexane with 2 standard deviations. These analytic techniques should be practically applied to various fields, and reliable results of environmental monitoring should be considered to improve the work environment and to keep workers from occupation related diseases.

• Radiation Oncology Journal
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• 제33권1호
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• pp.42-49
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• 2015

Purpose: In order to keep the acceptable level of the radiation oncology linear accelerators, it is necessary to apply a reliable quality assurance (QA) program. Materials and Methods: The QA protocols, published by authoritative organizations, such as the American Association of Physicists in Medicine (AAPM), determine the quality control (QC) tests which should be performed on the medical linear accelerators and the threshold levels for each test. The purpose of this study is to increase the accuracy and precision of the selected QC tests in order to increase the quality of treatment and also increase the speed of the tests to convince the crowded centers to start a reliable QA program. A new method has been developed for two of the QC tests; optical distance indicator (ODI) QC test as a daily test and gantry angle QC test as a monthly test. This method uses an image processing approach utilizing the snapshots taken by the CCD camera to measure the source to surface distance (SSD) and gantry angle. Results: The new method of ODI QC test has an accuracy of 99.95% with a standard deviation of 0.061 cm and the new method for gantry angle QC has a precision of $0.43^{\circ}$. The automated proposed method which is used for both ODI and gantry angle QC tests, contains highly accurate and precise results which are objective and the human-caused errors have no effect on the results. Conclusion: The results show that they are in the acceptable range for both of the QC tests, according to AAPM task group 142.

• 재활간호학회지
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• 제3권2호
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• pp.169-181
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• 2000

The purpose of this study was to identify the effect of follow-up care for stroke survivors on primary caregivers' quality of life. Quasi-experimental research was conducted in which an experimental group and a control group-each of 15 stroke survivors and their primary caregivers-were consecutively sampled. Data collected from July to September, 1999 by interview using a structured questionnaire with both the experimental and the control groups. After a month, the two groups were given the same questionnaire. The experimental group was also given a telephone follow-up every week for a month, as well as a home visit. The survey instruments used in this study were Saha and Cooper's "Modified Barthel Index" (11 items) for checking the stroke survivors' level of activities of daily living, and a modified form of Jeong's "Quality of life" (18 items) for primary caregivers' QOL level. The obtained data were analyzed by percentage, t-test, $X^2$-test, Kruscal-Wallis test, Spearman correlation coefficient by SAS/PC program. The results were as follows: 1. There was no significant difference in the stroke survivors' ADL level, though the level of the experimental group was higher than that of the control group. 2. There was a statistical difference in the before and after treatment of the primary caregivers' QOL level. In conclusion, the follow-up care program had a useful effect on the quality of life of primary caregivers.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2016년도 춘계학술대회
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• pp.271-274
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• 2016

CT 정도관리 영상평가는 팬텀 영상평가를 통한 정량적인 평가로 시행하며, 평가 항목으로는 물의 감약 계수, 균일도, 노이즈, 대조도 분해능, 공간분해능, 10mm 슬라이스 두께 평가 등이 있으며, 대조도 분해능, 공간 분해능, 슬라이스 두께 평가의 경우, 검사자의 주관적인 판단에 의한 평가로 인한 오류를 예상할 수 있으므로, 주관적인 오류를 최소화 하고자 전산화된 영상처리 프로그램을 이용하여 객관적인 평가를 하고자 한다. CT 정도관리 영상평가의 기본 촬영 조건은 특수의료장비 품질관리검사와 동일하며, IMAGE J를 이용하여 영상을 정량적으로 평가하였다. CT 감약계수, 균일도, 노이즈 평가의 경우, CT 정도 관리 영상에 비하여 디지털 처리 영상의 측정값의 표준편차가 더 작아 잡음이 적고 균일한 영상이라고 평가하였으며, 대조도 분해능 평가는 원의 직경의 크기가 큰 1인치, 0.75인치, 0.5인치의 경우 원형, 원의 직경이 작아질수록 타원에 가까운 원형으로 평가되었다. 공간분해능 평가는 영상처리 프로그램의 자동추출 기능을 이용하여, 합격기준을 포함하는 원의 그룹을 모두 자동으로 추출하여, 정량적인 평가에 매우 유용하다고 평가하였다. 위의 결과 등을 바탕으로 CT 정도관리 영상 평가 시, 영상처리 프로그램을 이용한다면 평가자의 주관적인 판단 오류를 최소화하고, 보다 더 효율적인 정량적평가가 이루어 질 것이라고 판단된다.

• 한국산학기술학회논문지
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• 제13권10호
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• pp.4564-4571
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• 2012

본 연구는 산업체 만성요통환자의 자가요통관리를 위하여 가상현실 운동프로그램을 실시하고 산업체 만성요통관련 신체기능 및 건강관련 삶의 질을 측정하여 분석하였다. 대상자는 K산업체 만성요통환자 30명으로 Nintendo Wii Sports군(실험군) 15명, 일반 물리치료군(대조군)15명으로 구성되었으며, 신체기능은 배근력, 유연성, 균형능력, 통증으로 측정하였고, 건강관련 삶의 질은 SF-36을 측정하여 운동 전과 운동 후, 군간을 비교분석하였다. 집단 내 운동 전 후의 차이를 비교하기 위하여 대응표본 t-검정을 사용하였고, 집단간의 차이를 비교하기 위하여 독립표본 t-검정을 실시하였다. 실험결과 균형능력과 통증에서 두군 모두 통계학적으로 유의하게 개선된 것으로 나타났으며, 군간 비교에서는 Nintendo Wii Sports군이 일반물리치료군에 비해 통계학적으로 유의하게 향상된 것으로 나타났다. 또한 건강관련 삶의 질은 Nintendo Wii Sports군에서만 통계학적으로 유의하게 향상된 것으로 나타났다. 결론적으로 가상현실운동프로그램이 산업체 만성요통환자의 요통에 긍정적인 영향을 미쳐 요통관리를 위한 재가운동 프로그램으로 고려되어야 할 것으로 사료된다.

• 융합정보논문지
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• 제10권5호
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• pp.126-133
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• 2020

본 연구는 합창과 호흡훈련을 병합한 복합예술교육프로그램이 대학생의 호흡기능 및 스트레스와 삶의 질에 미치는 영향을 알아보기 위하여 무작위 대조군 사전 사후 연구 설계로 진행하였다. 본 연구는 대학생 25명을 대상으로 복합예술교육프로그램을 시행한 실험군 (n=13)과 일반 예술교양프로그램을 적용한 대조군 (n=12)으로 무작위 배정하였다. 그 결과 실험군에서 실험 전 후 폐활량과 호흡근력, 스트레스와 삶의 질 척도에 유의한 차이를 보였다 (p<0.05). 또한 실험군 대조군간에 비교하였을 때, 1초간 노력성 날숨량(FEV₁) 결과를 제외하고 나머지 검사결과 값은 유의한 차이를 보였다 (p<0.05). 본 연구결과를 통하여 합창과 호흡훈련을 병합한 복합예술교육프로그램은 대학생의 스트레스 감소, 호흡기능과 삶의 질을 향상 시키는 프로그램으로 유익할 것이다.