• 한국인공지능학회지
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• 제10권2호
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• pp.13-18
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• 2022

The role of artificial medical intelligence through medical big data has been focused on data-based medical device business and medical service technology development in the field of diagnostic examination of the patient's current condition, clinical decision support, and patient monitoring and management. Recently, with the 4th Industrial Revolution, the medical field changed the medical treatment paradigm from the method of treatment based on the knowledge and experience of doctors in the past to the form of receiving the help of high-precision medical intelligence based on medical data. In addition, due to the spread of non-face-to-face treatment due to the COVID-19 pandemic, it is expected that the era of telemedicine, in which patients will be treated by doctors at home rather than hospitals, will soon come. It can be said that artificial medical intelligence plays a big role at the center of this paradigm shift in prevention-centered treatment rather than treatment. Based on big data, this paper analyzes the current status of artificial intelligence technology for chronic disease patients, market trends, and domestic and foreign company trends to predict the expected effect and future development direction of artificial intelligence technology for chronic disease patients. In addition, it is intended to present the necessity of developing digital therapeutics that can provide various medical services to chronically ill patients and serve as medical support to clinicians.

• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2003년도 제27회 추계학술대회
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• pp.67-67
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• 2003

It is crucial to minimize setup errors of a cancer treatment machine using a high energy and to perform precise radiation therapy. Usually, port film has been used for verifying errors. The Korea Cancer Center Hospital (KCCH) has manufactured digital electronic portal imaging device (EPID) system to verify treatment machine errors as a Quality Assurance (Q.A) tool. This EPID was consisted of a metal/fluorescent screen, 45$^{\circ}$ mirror, a camera and an image grabber and could display the portal image with near real time KIRAMS has also made the acrylic phantom that has lead line of 1mm width for ligh/radiation field congruence verification and reference points phantom for using as an isocenter on portal image. We acquired portal images of 10$\times$10cm field size with this phantom by EPID and portal film rotating treatment head by 0.3$^{\circ}$, 0.6$^{\circ}$ and 0.9$^{\circ}$. To check field size, we acquired portal images with 18$\times$18cm, 19$\times$19cm and 20$\times$20cm field size with collimator angle 0$^{\circ}$ and 0.5$^{\circ}$ individually. We have performed Flatness comparison by displaying the line intensity from EPID and film images. The 0.6$^{\circ}$ shift of collimator angle was easily observed by edge detection of irradiated field size on EPID image. To the extent of one pixel (0.76mm) difference could be detected. We also have measured field size by finding optimal threshold value, finding isocenter, finding field edge and gauging distance between isocenter and edge. This EPID system could be used as a Q.A tool for checking field size, light/radiation congruence and flatness with a developed video based EPID.

• 대한한의학원전학회지
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• 제32권2호
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• pp.1-16
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• 2019

Objectives : In this paper, characteristics of research methodology used in the field of Korean Medical Classics and its application was studied, with a focus on abductive reasoning that takes place in such methodology. Methods : First, the properties of the Korean Medical knowledge system, production, circulation and consumption of Korean Medical knowledge, methodology of knowledge production, reasoning of hypothesis, Medical Classics research methodology and its examples were examined. Afterwards, the relationship between Medical Classics research and Korean Medical Doctors's competence was studied. Results : The knowledge system of Korean Medicine, formed by a knowledge production group changes continuously not unlike a living organism. Knowledge is produced through Sang (象) within human consciousness that lies in an existential relationship between the knowledge producer and subject, through means of abductive reasoning. Conclusions : Creative knowledge production through abductive reasoning in the field of Korean Medical Classics will hopefully contribute to production of highly useful knowledge in clinical settings, complement and make change in the current Korean Medical knowledge system. Various teaching methods based on this research methodology will contribute to strengthening Korean Medical Doctors's competence as well.

• Journal of Yeungnam Medical Science
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• 제40권2호
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• pp.156-163
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• 2023

Background: Interest in digital medical information has increased because it allows doctors to easily access a patient's medical records and provide appropriate medical care. Blockchain technology ensures data safety, reliability, integrity, and transparency by distributing medical data to all users over a peer-to-peer network. This study attempted to assess pediatricians' thoughts and attitudes toward introducing blockchain technology into the medical field. Methods: This study used a questionnaire survey to examine the thoughts and attitudes of 30- to 60-year-old pediatricians regarding the introduction of blockchain technology into the medical field. Responses to each item were recorded on a scale ranging from 1 (never agree) to 7 (completely agree). Results: The scores for the intentions and expectations of using blockchain technology were 4.0 to 4.6. Pediatricians from tertiary hospitals responded more positively (4.5-4.9) to the idea of using blockchain technology for hospital work relative to the general population (4.3-4.7). However, pediatricians working in primary and secondary hospitals had a slightly negative view of the application of blockchain technology to hospital work (p=0.018). Conclusion: When introducing the medical records of related pediatric and adolescent patients using blockchain technology in the future, it would be better to conduct a pilot project that prioritizes pediatricians in tertiary hospitals. The cost, policy, and market participants' perceptions are essential factors to consider when introducing technology in the medical field.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
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• pp.549-552
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• 2003

The electrical current generated by heart creates not only electric potential but also a magnetic field. We have observed electrophysiological phenomena of the heart by measuring tangential components of magnetocardiogram(MCG) using 61 channel superconducting quantum interference device(SQUD) system. In this paper, we developed a new analysis method, which is based on the theory of electromagnetic field. We show some differences of the current direction between the normal MCG and the abnormal(ischemic heart disease) MCG.

• Journal of Yeungnam Medical Science
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• 제37권2호
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• pp.79-83
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• 2020

In the 21st-century postmodernism era, which represents diversity and relativity, one of the most essential elements in the field of education is to strengthen individual human values. Accordingly, we must focus on developing capacity in order to adapt to change. It is clear that the medical field maximizes the need for new judgments to solve life-related problems constantly, and this problem-solving capacity is an essential skill for a physician. Problem-solving capacity can be achieved simultaneously with creativity to apply them in an appropriate manner based on standardized expertise and well-trained skills. Creativity is also a key element that medical education is currently pursuing. Many studies on creativity have resulted in confusion and misunderstandings on the concept of creativity due to similar terms and varied definitions, such as creation, innovation, etc. In this study, we attempt to identify the importance of creativity in medical education by comparing and organizing concepts related to creative capacity.

• 대한방사선기술학회지:방사선기술과학
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• 제41권1호
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• pp.1-6
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• 2018

The purpose of this study is to provide baseline data on lung field size measured radiological method by chest PA image in normal Korean. The subject of this study is 496 normal persons who performed chest PA examination using x-ray digital radiography system. The measurement method is from the apex of right and left lung to the costophrenic angle of both lung, from the top of the image to the lowest costophrenic angle of both lung and transverse line of the largest lung area. As a result of this study, the following conclusions were obtained. A lung field size of male is larger than the female(p<0.05). The younger the age, the longer both lung length and total lung height statistically significant. As a increase height and length, A lung field size was increased(p<0.05). But, BMI is not associated with a lung field size. This study will be data of reference data when radiological technologists perform chest PA examination.

• 한국응급구조학회지
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• 제6권1호
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• pp.15-26
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• 2002

As a result of analyzing problems in field practice and its effects, the following conclusions can be obtained. Man students were more satisfied with their choice of this department than woman students and woman students recognized the importance of hospital practice although they felt the need of fire fighting station practice and man students felt the necessity of hospital practice, but they answered the fire fighting station practice was important. Departments of field practice are emergency and nurse departments in hospitals and emergency aid section in fire fighting stations. And it is found that field practice was performed well in relation to major subject. Areas of practice included emergency room, operation room and extensive cure unit and the experience of ambulance was more in fire fighting station than in hospital. Clinical guidance of professor was preferred to once a week and the students answered they felt satisfaction with practice through conference. Answer that field practice was helpful in understanding class was very high as 96.8% and its connection with employment was low as 12.8%. It is found that a proper timing of field practice was winter vacation for hospital practice after completing the second semester of the first year and summer vacation for fire fighting station practice after the first semester of the second year. The most difficult department in field practice was nurse department in hospital because 'respondents were practice students' and administrative department in fire fighting stations because 'they lacked recognition of paramedic'. In making practice diary, 'describing measure results' was difficult most and the respondents wanted to keep the diary in their custody.

• 디지털융복합연구
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• 제15권6호
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• pp.345-352
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• 2017

본 연구의 목적은 드라마 '태양의 후예' 중 의료현장에서 이루어지는 의료인의 역할을 분석하는 것이다. 본 연구설계는 드라마 '태양의 후예' 중 의료현장에서 이루어지는 의료인의 역할을 탐구하기 위한 질적연구이다. 본 연구를 수행하기 위해 '태양의 후예' 중 의료현장에서 이루어지는 의사소통 장면을 본 연구의 분석자료로 선택하여 의료현장에서 의료진의 의사소통 및 역할 등에 대해 분석하였다. 연구분석을 위해 본 연구팀에서는 태양의 후예를 보며 의료현장 장면을 필사하였으며, 필사가 끝난 후 필사내용을 다시 한 번 확인하여 빠진 내용이 없는지 검토한 후 최종 분석자료를 내용분석 방법을 통해 정리하였다. 본 연구 결과 '태양의 후예' 에서 의료진의 역할은 '응급상황에서의 의사결정', '의료팀간의 협력', '환자에 대한 지지', '의료인으로써의 책임감/윤리적 딜레마'로 나타났다. 본 연구는 하나의 드라마를 분석하여 의료진의 역할을 분석하였다는 것에 있어 한계가 있으나, 드라마를 통해 제 3자의 입장에서 의료진의 역할을 탐색하였다는 것에 의의가 있다.

• 대한방사선치료학회지
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• 제25권2호
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• pp.175-180
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• 2013

목 적: 방사선치료에 있어 환자자세 설정(Set-up) 오차를 줄이기 위하여 많은 장비들이 개발되어 왔다. CBCT 촬영은 Set-up 오차를 줄이고, 정확한 치료를 수행하는 최신 방법 중 하나이다. CBCT의 조사야를 조절하여 영상의질(Image quality) 향상과 피폭선량을 측정하고 분석함으로써 임상에서 최적화하여 사용할 수 있는 치료조사야(Field size)를 제시하고자 한다. 대상 및 방법: Catphan phantom을 이용하여 Half fan, Full fan mode로 조사야를 2~16 cm까지 2 cm 간격으로 촬영하였다. Small field size (2 cm, 4 cm), Medium field size (8 cm, 10 cm), Large field size (14 cm 이상)으로 구분하여 Image quality를 평가하였다. CTDi는 CTDi phantom과 Ion chamber를 이용하여 측정 및 분석하였다. 결 과: CT값 일치도(CT number linearity)는 Small, Large field size에서 촬영한 값이 Medium field size보다 크게 나타났다. 공간분해능(Spatial resolution)은 Full fan에서 Small field size촬영을 제외하고 나머지 Field size에서 크게 차이가 나지 않았다. Half fan에서는 많은 차이를 보였다. CT 값 균일도(HU uniformity)는 Full fan에서는 Medium size를 제외하고는 제조사에서 권고하는 값을 초과하였으며, Half fan에서는 모든 Field size가 Full fan에서는 Medium field size에서는 안정된 값으로 분석되었다. CT 피폭선량(CTDi)는 Medium field size에서 증가 할수록 루트함수의 그래프의 형태로 나타났다. 결 론:Small field size에서는 Image quality와 실용성의 측면에서도 적절하지 않은 것으로 사료된다. Medium field size는 Large field size에서 보다 Image quality도 우수하고 환자의 피폭선량을 줄일 수 있으므로 본 논문에서는 CBCT 촬영 시 Field size 8~10 cm 촬영이 유용하다고 사료된다.