• Progress in Medical Physics
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• v.18 no.2
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• pp.93-97
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• 2007

This study was designed to evaluate radiosurgery technique using multiple noncoplanar arc therapy with intensity modulated fine MLC shaped photon beam. The stereotactic radiosurgery was performed with 6-MV X-ray beams from a Clinac 21EX LINAC (Varian, Palo Alto, CA, USA) with a MLC-120, which features a full $40{\times}40cm$ field and is the first MLC for general use that offers 0.5 cm resolution for high precision treatment of small and irregular fields. We used a single isocenter and five gantry-couch combinations with a set of intensity modulated arc therapy. We investigated dosimetric characteristics of 2 cm sized spherical target volume with film (X-OMAT V2 film, Kodak Inc, Rochester NY, USA) dosimetry within $25{\times}25cm$ acrylic phantom. A simulated single isocentric treatment using inversely Planned 3D radiotherapy planning system demonstrated the ability to conform the dose distribution to an spherical target volume. The 80% dose level was adequate to encompass the target volume in frontal, sagittal, and transverse planes, and the region between the 40% and 80% isodose lines was $4.0{\sim}4.5mm$ and comparable to the dose distribution of the Boston Arcs. We expect that our radiosurgery technique could be a treatment option for irregular-shaped large intracranial target.

• Progress in Medical Physics
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• v.17 no.1
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• pp.17-23
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• 2006

In Vivo dosimetry is a method to evaluate the radiotherapy; it is used to find the dosimetric and mechanical errors of radiotherapy unit. In this study, on-line In Vivo dosimetry was enabled by measuring the skin dose with MOSFET detectors attached to patient's skin during treatment. MOSFET dosimeters were found to be reproducible and independent on beam directions. MOSFET detectors were positioned on patient's skin underneath of the dose build-up material which was used to minimize dosimetric error. Delivered dose calculated by the plan verification function embedded in the radiotherapy treatment planning system (RTPs), was compared with measured data point by point. The dependency of MOSFET detector used in this study for energy and dose rate agrees with the specification provided by manufacturer within 2% error. Comparing the measured and the calculated point doses of each patient, discrepancy was within 5%. It was enabled to verify the IMRT by using MOSFET detector. However, skin dosimetry using conventional ion chamber and diode detector is limited to the simple radiotherapy.

• Progress in Medical Physics
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• v.25 no.4
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• pp.248-254
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• 2014

The purpose of this study is to develope a control system for a small X-ray tube generator and investigate control methods for the X-ray generator. The small X-ray tube was developed for electronic brachytherapy, and thus, the new control method should be investigated, if the small X-ray tube is used for the imaging system. The Axxent S700 X-ray tube and the XF060NZZ485 high voltage generator were used to compose a X-ray imaging system and control board was developed by using AT90CAN128 MCU. The two control methods were investigated after tube voltage was set to 50 kV, one was filament current control method and the other was beam current control method. The former was subdivided into two methods according to the filament heating time, the 5 and the 10 seconds respectively. In the filament current method, the beam current did not rise up to the desired value, if the filament current had not been maintained for at least 10 seconds. The onset filament currents to generate beam current were varied from 1,300 to 1,350 mA and over 5 seconds were needed in order to reach the desired tube current value after beam current was generated. However, in the tube current control method, the beam current reached to the desired value without any time delay with the filament current of 1,500 mA. In this study, we found that the beam current control method was appropriate for the use of small X-ray tube developed for brachytherapy in the X-ray imaging system.

• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.404-415
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• 2022

The purpose of this study is to propose considerations to help actual application based on the characteristics of the online art-based peer supervision execution process. Colleagues in the clinical art therapy doctoral program, including the researcher, attempted to repeatedly identify problems and apply improvements in the implementation process as research participants, and qualitatively analyzed the various data collected in the process. Looking at the characteristics of the analysis results, extensibility of materials and space was confirmed in terms of 'art-based' and initiative, convenience, and speed in terms of 'online'. The considerations identified through this are as follows. First, 'pre-structuring' should be based on clear boundaries and setting, prior consultation of the group, and self-directed preparation and attitude. Second, for the 'structural aspect of art', space and media to help immersion through creation, and stable implementation structure should be established. Third, in the 'technical aspect', it is necessary to apply a method that can deliver a work of art and a method that can communicate the creator's clear intention. Lastly, for the 'ethical aspect', it is necessary to use online software in accordance with the minimum security standards and to make efforts to repeatedly maintain confidentiality. This study is meaningful in that it suggested a practical method for maintaining the professional competence of art therapists and expanding networks among art therapists in various situations including pandemics.

• Korean Journal of Oriental Medicine
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• v.10 no.2
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• pp.23-36
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• 2004

The uncovered edition of the book ${\ulcorner}$Chandobangronmackkyulgipsung(纂圖方論脈訣集成)${\lrcorner}$ was found. The first edition of the book ${\ulcorner}$Chandobangronmackkyulgipsung${\lrcorner}$ may publish right after the year 1581. We decided to study the found book thoroughly, because any difference with the existing edition wasn't found when we glanced over it. Therefore, let's study differences of the books which are the same contents but revised at different period, the found one was revised before the war (Japanese Invasion of Korea in 1592) and the existing one revised after the war. Two parts was considered for this studying. The first part is for studying differences of the books by bibliography, the second part is for studying differences of them by contents. The changes of the books between before and after the war (Japanese Invasion of Korea in 1592) will be found by this studying and also we can guess how the book ${\ulcorner}$Chandobangronmackkyulgipsung${\lrcorner}$ was written. Hence, the published age and characteristics of the book will be verified. This studying is for proving that it was revised before the war ImJinWaeRan which was before the year 1612.

• Journal of dental hygiene science
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• v.14 no.2
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• pp.230-239
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• 2014

This study is to promote awareness to be exposed to radiation with identifying knowledge, attitudes and behavior for radiation safety management of the operating room nurse and dental hygienist. And the following results were obtained through questionnaire survey to deduct the education to prevent potential risks in advance and implication to be useful on education program. First, based on the level of knowledge for radiation safety management, 10.57 for dental hygienists, 9.55 for the nurse out of 15 points (p<0.001); based on the level of attitudes for radiation safety management, 4.64 for dental hygienists, 4.67 for the nurse out of 5 points (p<0.001); and based on the level of behavior for radiation safety management, 3.27 for dental hygienists, 2.93 for the nurse out of 5 points (p<0.001). Second, the result for checking the relation with knowledge, attitudes and behavior for radiation safety management, the knowledge of radiation safety management has correlation with attitudes and behavior for radiation safety management statistically (p<0.001).

• The Korean Journal of Emergency Medical Services
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• v.28 no.1
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• pp.127-137
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• 2024

Purpose: This study aimed to analyze the jobs of paramedics who are diversifying by deriving duties in accordance with occupational group-related laws, although they are not directly specified in the job description of paramedics or the Emergency Medical Act. Methods: This study selected four paramedics who randomly extracted participants that submitted consent to participate between March 2023 and October 2023. Their occupational groups were the Korea coast guard and air rescue, health centers, and industries; they met on September 19, 2023, and directly transcribed the recorded contents through a three-and-a-half-hour focus group interview for analysis. Results: In the results, although the job description was not directly specified in the job description or emergency medical law, five areas of work applied to practice were derived: "rescue," "administration," "education," "industry," and "tactical." Conclusion: To expand jobs according to the diversification of the occupational field of paramedics, job analysis of paramedics belonging to various occupations is required.

• Korean Journal of Psychosomatic Medicine
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• v.28 no.1
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• pp.1-7
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• 2020

Objectives : The purpose of this study was to explore comparison of clinical characteristics among Anxiety disorder, Depressive disorder, and Co-morbid of Anxiety disorder and Depressive disorder. Methods : Since January, 2017 to May, 2019, patients were recruited from the department of psychiatry of Hanyang University Guri Hospital. Participants were diagnosed Anxiety disorder, Depressive disorder, and Co-morbid of Anxiety disorder and Depressive disorder using DSM-5 criteria by board certified psychiatrists or clinical psychologists. And each of participants tested with MMPI-2 and clinical psychologists were converted MMPI-2 to MMPI-2-RF. The data were analyzed using SPSS 18.0. Results : The results indicated EID, RC2, HLP, SAV, and INTR-r were the highest in Co-morbid of Anxiety disorder and Depressive disorder group. And BXD, RC4, JCP, and AGGR-r were the highest in Depressive disorder group. Conclusions : The results indicated that Co-morbid of Anxiety disorder and Depressive disorder group were more severe internalizing dysfunction like lower positive emotion, helplessness, social avoidance and discomfort than single-diagnosed group. Single Depressive disorder group were more serious externalizing dysfunction like anger and aggression than single Anxiety disorder and Co-morbid of Anxiety disorder and Depressive disorder. The implications and limitations were discussed.

• Journal of Hospice and Palliative Care
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• v.21 no.4
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• pp.137-143
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• 2018

Purpose: The purpose of this study was to investigate the family composition of terminally ill cancer patients admitted to the hospice unit and how it affects their hospice care. Methods: We retrospectively analyzed the medical records of terminal cancer patients who died in one hospice unit between January 2009 and March 2014. The demographic and clinical characteristics of the patients were examined, and any different made by their marital status was evaluated. We calculated the time interval between cancer diagnosis and hospice admission and the survival period from hospice admission to death and analyzed their association with family composition. Results: When divided by the median time of 13 months between diagnosis and admission, Group B (>13 months) had a significantly higher proportion of patients living with their spouses; (P<0.01). The main decision maker was a spouse (52.9%) in Group B; (P=0.04). Conclusion: Among the characteristics of the family composition, the presence of spouse was an important factor associated with admission to a hospice unit. Clinicians need to be aware of the impact of marital status on end-of-life care. This study indicates that it is helpful to understand family composition of terminallyill cancer patients for an effective palliative and hospice care.

• The Journal of Korean Medical History
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• v.20 no.1
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• pp.68-82
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• 2007

Kim, Doo-jong wrote "History of Korean Medicine", which was based on the historical view of Japanese Imperialism, insisting that Korea had stagnated and should be stimulated by others because it had no ability to improve by itself. To meet his opinion, he distorted and fabricated Korean Medical History to justify his past and work as Lee, Byung-Do did on Korean History. This paper intended to reveal his distortion and fabrication on the ancient Korean Medical History. Firstly, he insisted that Korean medicine had stagnated till other neighbor medicine, that is, Chinese medicine, Indian medicine, Japanese medicine and European medicine stimulated its progress. Secondly, he insisted that the Korea peninsula has been the Korean territory all through its history, which was originally forged by the Japanese Imperialists. He adopted this theory to justify his past and work. Thirdly, he insisted that Korea was effected by the European medicine a long time ago. Even though the European medicine was not skillful at that time compared with Korean medicine, he adopted this theory to justify his past and work. Lastly, he had a wrong recognition on culture and religion, which he just used to justify his past and work. Profound study and research are required to eliminate his distortion and write the history of Korean medicine correctly.