외부의료영상의 PACS 등록 시 OCS상 FTP Module의 유용성

정명진,동경래,지연상,최정길,전재두,Jung, Myung-Jin,Dong, Kyung-Rae,Ji, Yeon-Sang,Choi, Jung-Gil,Jeon, Jae-Doo 대한디지털의료영상학회 2009 대한디지털의료영상학회논문지 Vol.11 No.1

This study was conducted to improve performance flow of PACS registration and output of external medical images by developing or adding File Transfer Protocol(FTP) Module on Order Communication System(OCS) and to upgrade efficiency of performance. The numbers of requests for examination of external medical images from January 2004 to December 2007 were investigated and the numbers of cases of examinations and losses were done respectively from January to June, 2007 as a period before the improvement and from July to December, 2007 as a period after it. Satisfaction of persons inputting external medical images of CD was asked directly before and after the improvement. When the numbers of requests for examination of external medical images from 2004 to 2007 2004 were investigated, they were 12,783, 16,774, 21,613 and 27,487 cases in 2004, 2005, 2005 and 2007 respectively. For the numbers of the requests from January to December, 2007 it was the lowest in February by recording 1846 and it was 2800 in October. While the number of loss of external medical images was averagely 3.6 before using FTP Module on OCS, it reduced to 0 and satisfaction increased to 98% after it. By utilizing FTP Module on OSC for PACS registration of external medical images, the images were delivered simultaneously with occurrence of order, PACS registration of many patients was conducted together and CDs were returned to patients immediately after sending images from outpatient clinics or wards to remove possibility of losing them. In addition, because the module was established on OCS and data were sent associated with order, problems related with order were decreased. By eliminating movement distance it was turned out to be very effective in terms of time and space.

MDCT의 다양한 알고리즘과 관상동맥내 삽입된 스텐트 내경측정의 영향

정명진(Myung Jin Jung),전재두(Jae Doo Jeon),노지숙(Ji Sook Noh),전진만(Jin Man Jeon),김동훈(Dong Hun Kim) 대한CT영상기술학회 2008 대한CT영상기술학회지 Vol.10 No.1

Purpose To analyze diameter of stem within phantom and coronary artery and to recognize various algorithm effects that make blooming artifact commonly. Materials and Methods Phantom model was manufactured as follows: stem located in center of thin plastic pipe was situated in glass bottle and mixed saline and contrast (10:1) was filled in bottle. Total 80 patients (man : woman = 53 : 27, mean age = 60.8 years old) who undergo percutaneous coronary intervention (stenting) were included in this study. Coronary CT angiography was performed with the use of a 16- slice MDCT scanner with a 0.42-s rotation time (Sensation 16, Siemens, Erlangen, Germany) and a 64-slice MDCT scanner with a 0.42-s rotation time (Brilliance 64, Philips Medical Systems, Best, The Netherlands) with retrospective ECG gating.A standard scanning protocols were applied. Six radiological technicians measured internal diameter of stem within phantom and coronary artery respectively. As much as possible, we exclude artifacts including blooming artifact. For evaluation of images, window width and window center were used as 900 ± 100 and 400 ± 100 each. Results In phantom model, average inside diameter measured by each algorithms appeared most greatly as 2.35 mm (B50f in S company) and 2.53 mm (XCB in P company) respectively. In patients, in stent resolution processed by XCC was scored as 7.67 (highest) and others (XCA, XCB, XCD) got similar scores. Conclusion B40f (S company, 16 slice MDCT) and XCC (P company, 64 slice MDCT) are appropriate algorithms for evaluating internal patency of stent within coronary artery.

IV route에 따른 Neck CTA 영상의 적정성에 관한 고찰

정명진(Myung Jin Jung),전재두(Jae Doo Jeon),정지훈(Ji Hoon Jung),박상록(Sang lok Park),전진만(Jin Man Jeon),노지숙(Ji Sook Noh) 대한CT영상기술학회 2012 대한CT영상기술학회지 Vol.14 No.2

목적 본 연구에서는 Ⅳ route에 따라 Neck CTA검사 시 Ⅳ route 확보에 대한 문제점의 해결과 높은 진단영상 획득을 위한 프로토콜을 제시하고자 한다. 대상 및 방법 2011년도 12월부터 2012년 2월까지 광주광역시 C 대학병원에 Neck CTA 검사를 위해 내원한 환자 중에서 영상판독결과 질환이 없는 환자를 대상으로 하였고, Ⅳ route를 상지혈관에 확보한 환자 23명과 하지혈관에 확보한 환자 30명을 연구대상으로 조사하였다. Curved MPR 영상에서 ICA부위에 HU값을 측정하였고, 측정한 HU값의 측정오류를 최소화하기 위하여 한 연구자가 근위부에서 원위부까지 각각 3회씩 측정하여, 이들 HU값의 평균과 표준편차를 구했다. 평가방법은 영상의학과 전문의 2명, 방사선사 3명에 의해 평가하였으며, 조영제에 의한 인공물이 혈관에 미치는 정도와 조영증강 정도에 따라 최고점수 5점을 부여하였고, 나머지는 차례로 1점 단위로 하위점수를 부여하여 평가하였다. 통계분석은 독립표본 t-test 검정을 시행하였고, p<0.05인 경우에 통계학적으로 유의한 것으로 보았다. 결과 상지에 혈관을 확보한 군의 HU 평균값은 463.36±94.77, 하지에 혈관을 확보한 군의 HU 평균값은 372.98±74.32로 나타났고, 영상 평가한 결과 상지에 혈관을 확보한 환자의 검사영상에서 4.14±0.81점, 하지에 혈관을 확보한 환자의 검사영상에서 4.18±0.65점으로 나타났다. HU값과 영상평가에 따른 독립표본 t-test 검정을 한 결과 통계적으로 유의하였다 (p<0.05). 결론 Neck CTA 검사 시 상지에 혈관을 확보 시에도 Dual injector를 이용한 조영제와 생리식염수를 투여하고 검사방향을 머리에서 발쪽으로 높은 피치로 검사함으로써, 견측 부위에서의 조영제로 인한 인공물 발생을 줄일 수 있어 진단적으로 양질의 영상을 얻을 수 있었다. I. Purpose This study aims to present a protocol to attain solutions to problems involving Ⅳ route in Neck CTA and acquire diagnostic images according to Ⅳ routes. II. Meterial and Methods For the purpose, this study analysed patients who came to C university hospital for Neck CTA from December 2011 to February 2012 and had no diseases as a result of image reading. The subjects were categorized in the following: 23 patients with Ⅳ route at their upper extremity and 30 ones with Ⅳ route at their lower extremity. HU values were measured at the ICA of the curved MPR images and to minimize errors in the HU values, this study measured them from the proximal to the distal three times for a subject to obtain means and standard deviations. Two radiologists and three radiological technologists participated in the evaluation, and a maximum of five points were given according to the degrees that contrast media affected blood vessels and the intensity of contrast enhancement, and sub-points were given to the rest. For a statistical analysis, a t-test was conducted and in case of p<0.05, it was suggested that it was significant. III. Result The mean HU values of the group with Ⅳ route at the upper extremity were 463.36±94.77 and those of the group with Ⅳ route at the lower extremity were 372.98±74.32. As a result of evaluating the images, the points of the former subjects were 4.14±0.81 and those of the latter subjects were 4.18±0.65. It was discovered that the results of the HU values and the t-test were statistically significant(p<0.05). IV. conclusions In the Neck CTA, to secure IV routes at the upper extremity, contrast media and saline were injected with a use of a dual injector and an examination was done from the head to the leg to decrease occurrence of artificial things due to contrast media and to attain good-quality images.

뇌성마비 장애학생의 VDR 유전자 다형성별 재활승마의 효과 연구

정명진(Jung, Myung-Jin),이동복(Lee, Dong-Bok) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.4

The study was conducted with the aim of distinguishing the genetic type of cerebral palsy students and verifying the effect before and after Therapeutic riding. Subjects selected 3 types 21 people through VDR genetic testing of students with cerebral palsy disorder to participate in Therapeutic riding for 16 weeks three times a week before and after the Therapeutic riding, it was confirmed the effect of Therapeutic riding through the strength and Balance test. In the isokinetic strength was increased both the left and right flexor peak torque strength and the extensor peak torque strength in both type-specific, FF type was confirmed a significant increase in all. And in the Balance test, all improvements were made, but significant differences were confirmed. For cerebral palsy students who lack physical activity, Therapeutic riding is believed to require further research, with differences in effects varying depending on the gene type.

비 조영증강 전산화단층촬영 검사시 관전압 변화에 따른 요산석과 비요산석의 HU변화에 관한 연구

정명진(Myung Jin Jung),노상호(Sang Ho Noh),문창운(Chang Woon Moon),노지숙(Ji Sook Noh),김성길(Sung Kil Kim) 대한CT영상기술학회 2014 대한CT영상기술학회지 Vol.16 No.2

서 론 : 요로결석의 성분에 대한 정보는 효과적인 치료방법을 결정하는데 있어 중요한 역할을 하며, 요로결석의 분쇄정도(fragility)를 예측 가능하게 한다. 이에 본 저자는 요로결석의 HU값 측정시 관전압에 따른 요산석과 비요산석의 HU값 변화에 대해 알아보고자 한다. 대상 및 방법 : 작은 플라스틱 병(Plastic Bottle) 안에 요로결석을 삽인 후 인체와 비슷한 돈육을 이용하여 실험팬텀을 제작하였다. 640-Slice MSCT(Auquilion ONE, Toshiba Medical Center, Japan)의 Volume scan 방식을 이용하여 촬영하였고, 얻어진 영상에서 각 관전압에 따른 요로결석의 HU값을 측정하였다. 수집된 자료의 통계분석은 각 요로결석의 관전압에 따른 HU값 차이의 유의성을 알아보기 위해 대응표본 T-검정을 시행하였고, p<0.01인 경우에 통계학적으로 유의한 것으로 보았다. 결 과 : 요산석의 HU값은 135kV일 때 412.67±17.49, 100kV일 때 401.50±29.46, 80kV일 때 401.00±24.88로 관전압이 감소함에 따라 HU값은 일정하게 나타났고, 비요산석의 HU값은 135kV일 때 442.19±16.86, 100kV일 때 624.52±26.30, 80kV일 때 826.05±32.15로 관전압이 감소함에 따라 HU값이 증가하였다. 요산석의 경우에 관전압의 변환에 따른 HU값은 통계적으로 유의한 차이를 보이지 않았고(P>0.01), 비요산석의 경우에 80kV와 135kV, 100kV와 135kV, 80kV와 100kV의 HU값은 통계적으로 유의한 차이를 보였다(P<0.01). 135kV에서는 요산석과 비요산석의 HU값이 통게적으로 유의한 차이를 보이지 않았으며(P>0.01), 100kV와 80kV에서는 요산석과 비요산석의 HU값의 차이가 통계적으로 유의한 차이를 보였다(P<0.01) 결 론 : 비 조영증강 전산화단층촬영시 비요산석의 경우에는 관전압이 감소할수록 요로결석의 HU값이 상승함을 알 수 있었고, 요산석의 경우에는 관전압이 증가할수록 HU값이 감소함을 알 수 있었다. 요로결석을 위한 비 조영증강 전산화단층촬영 시에는 100kV 또는 80kV의 저관전압을 이용해야 요로결석의 성분을 진단하는데 도움이 될 것으로 생각된다. Purpose : Information on the components of urinary tract effective therapy plays an important role in determining how and to urinary tract prediction enables the fragility. HU measurement of urinary stone tube voltage according to the value of the Non-uric acid Uric acid changes in the value of the HU to evaluate. Materials and method : Plastic Bottle sapin in the human body, similar to a urinary tract stones using pork was produced in the phantom experiment. 640-Slice MSCT (Aquilion ONE, Toshiba Medical Center, Japan) using the Volume scan approach was taken. Urinary stones according to the image of each tube voltage was measured HU values, the statistical analysis of the data collected for each tube voltage of urinary stones according to the significance of differences in HU values to see performed by paired sample test, p<0.01 If one looked to be statistically significant. Result : Uric acid HU values are 135kV, 412.67±17.49, 100kV, 401.50±29.46, 80kV, 401.00± 24.88, when the tube voltage decreases to a constant value appeared HU, Non-Uric acid HU value is 135kV, 442.19±16.86, 100kV, 624.52±26.30, 80kV, 826.05±32.15, the tube voltage is decreased to HU values increased along. Uric acid in the case of a tube voltage conversion value of the HU, there were no statistically significant differences(P>0.01), Non-uric acid in the case of 80kV and 135kV, 100kV and 135kV, 80kV and 100kV HU value of a statistical significant difference(P<0.01). 135kV is Uric acid and Non-uric acid HU value showed no significant difference(P>0.01), 100kV and 80kV Uric acid and Non-uric acid HU difference was statistically significant difference respectively. (P<0.01) Conclusion : When a non-enhanced spiral computed tomography(CT) in the case of Non-uric acid in the urinary tract tube voltage decreases to that of HU values were rising, Uric acid in the case of HU values increased tube voltage decreased. For urinary stones during non-enhanced spiral computed tomography(CT) of 100kV or 80kV Lower tube voltage should be used for the components of Urinary stone believed to be helpful in diagnosis.

Pisarenko Harmonic Decomposition 에 의한 배경 뇌파 파워 스펙트럼 분석에 관한 연구

정명진(Myung-Jin Jung),황수용(Soo-Young Hwang),최갑석(Kap-Seok Choi) 대한전기학회 1987 대한전기학회 학술대회 논문집 Vol.1987 No.7

어머니에 대한 표상과 아동의 사회적 능력과의 관계

정명진(Myung Jin Jung),김광웅(Kwang Woong Kim) 한국아동학회 2009 아동학회지 Vol.30 No.6

10km 지구력 승마경기에 의한 남성 기승자의 염증지표, 아디포카인, 호르몬 및 혈중지질 농도의 변화

정명진(Jung, Myung-Jin),장석암(Zhang, Seok-Am) 한국웰니스학회 2016 한국웰니스학회지 Vol.11 No.3

본 연구는 승마운동이 인체에 미치는 효과를 알아보기 위해 계획되었다. 본 실험 참여에 동의한 중년 남성 9명을 대상으로 경기 전과 10km승마 경기 후의 혈액을 채취하여 지방대사관련인자인 adiponectin과 염증지표인자 TNF-α, IL-6, 혈중 지질과 호르몬을 분석하였다. 10km의 승마경기 후 염증지표 중 IL-6과 렙틴 수준은 유의하게 증가하였으며, 이는 승마경기가 단순히 즐기기 위한 문화가 아닌 운동으로서의 효과를 가지는 것으로 보여진다. 혈중 지질중, 중성지방은 변화가 없었으며, LDL-C 수준은 증가는 피험자들의 BMI가 정상수치보다 높았고, 평소의 식이습관을 고려하지 않았기 때문으로 예상할 수 있다. 그러나 HDL-C과, 총코레스테롤 수준의 증가한 결과로 보았을 때, 승마를 일회성으로 끝낼것이 아니라 꾸준한 빈도로 훈련을 한다면, 운동의 효과 외에도 비만과 같은 대사성 질환을 예방하는데에도 긍정적인 효과를 가져올 것으로 보인다. 일회성 승마운동으로 Leptin 호르몬과 HDL-C의 긍정적인 결과는 승마가 귀족들의 문화가 아닌 운동으로서의 의미를 가지며, 꾸준한 승마운동을 통해 비만, 고혈압과 같은 대사성 질환을 예방하는데에도 효과적일 것이라고 사료된다. We wanted to exam the change of inflammatory index, adipokines, hormones, and lipid concentration on 10Km horse back riding. The 9 subjects in average 42±7ysr, 171±6.6cm, 70±7.5kg, 24±1.30 and less than 5 years experience respectively. This study carried out test of physical constitution and blood test before and after horseback riding. The IL-6 concentration of inflammatory index was significantly increased(p<.01) and leptin concentration was significantly increased(p<.01) after horseback riding. The HDL-C concentration was significantly increased(p<.01), LDL-C concentration was significantly increased(p<.05), and total cholesterol concentration was significantly increased(p<.05) because the endurance exercise was effective exercise. If we horseback riding regulary, we can prevent geriatric diseases.

64 Slice MDCT와 심근관류 SPECT, 심초음파를 이용한 심실 기능 지표의 비교

정명진(Myung Jin Jung),전재두(Jae Doo Jeon),노지숙(Ji Sook Noh),김동훈(Dong Hun Kim) 대한CT영상기술학회 2009 대한CT영상기술학회지 Vol.11 No.1

Purpose Wish to search each equipment correlation great damage about ejection fraction, end diastolic volume, end systolic volume that express capacity and function of left ventricle that use multi detector computed tomography(MDCT). Recognized about end systolic phase and suitable section choice of end diastolic phase that is basic information of all-important EDV and ESV in functional analysis. Materials and methods From 560 patients who underwent cardiac MDCT in the Kwangju city C univesity hospital from january, 2008. to january, 2009, We enrolled 39 patients who underwent echocardiogarphy, myocardial perfusion SPECT during the same period for this study. Left ventricular end systolic volume(EDV), left ventricular end diastolic volume(EV) and ejection fraction(EF) were functional analyzed. Results Average volume(47.00±21.46ml, 41.80±13.81ml for 30% and 40% phase, 120.40±34.6ml, 132.40±29.13ml, 137.20±29.83ml for 70%, 80%, 90% phase), average EF(62.41%, 64.93%, 65.91% for 30%(ES), 70%~90% phase(ED), 5.27%, 68.12%, 69.12% for 40%(ES), 70%~90%(ED)) showed significant difference between each phase. Comparing correlation for each parameters between each groups. Average EF(r=0.88, p<0.00001 for MDCT & SPECT, r=0.83, p<0.00001 for MDCT & ECHO, r=0.81, p <0.00001 for SPECT & ECHO) showed high relevance. average EDV(r=0.88, p<0.00001 for MDCT & SPECT, r=0.79, p<0.00001 for MDCT & ECHO, r=0.86, p<0.00001 for SPECT & ECHO) showed high relevance. Average ESV(r=0.88, p<0.00001 for MDCT & SPECT, r=0.79, p<0.00001 for MDCT & ECHO, r=0.86, p<0.00001 for SPECT & ECHO) showed high relevance. Conclusion Qantiative assessment of left ventricular volume and function using 64 slice MDCT Showed high relevance compared with myocardial perfusion SPECT & echocardiogarphy. Hereafter, by technological development of MDCT, if coronary artery stenosis’ diagnosis and left ventricular function analysis consist abuzz, is expected to enforce test more simply because it is to patient.

헬스케어 산업발전을 위한 의료빅데이터 활성화 정책

정명진(Myung Jin Jung),이민화(Min Hwa Lee) 한국경영학회 2017 한국경영학회 통합학술발표논문집 Vol.2017 No.08

4차 산업혁명 시대를 맞아 헬스케어 산업이 주목받고 있다. 이는 고령화 사회와 맞물려 차세대 먹거리산업으로 꼽히기 때문이다. 시장조사 전문기관 플런켓리서치에 따르면 글로벌 헬스케어 시장 규모는 6조1500억 달러(2013년 기준)에 달한다. 4차 산업혁명은 현실과 가상의 융합 혁명이다. 특히 헬스케어와 4차 산업혁명은 동반성장하고 있는 차세대 성장 동력이다. 4차 산업혁명을 맞아 헬스케어 산업이 성장하기 위해 중요한 것이 의료빅데이터를 수집해 현실과 가상을 연결하는 고속도로 역할을 하는 것이 클라우드다. 여기에 빅데이터가 모여야 하기 때문이다. 클라우드 기반의 의료빅데이터가 모이면 원격 의료가 가능해지고 강력한 인공지능 의료 서비스가 제공될 수 있다. 하지만 우리나라는 규제 정책으로 인해 의료빅데이터가 모아지지 않고 있다. 이는 규제 때문이다. △과도한 개인정보 규제 △특정 클라우드 사용 규제 등이다. 이 규제들로 인해 가장 기본이 되는 의료빅데이터가 부족한 게 현실이다. 클라우드 기반 트래픽을 살펴보면 미국은 86%이지만 우리나라는 1.8%에 불과하다. 따라서 미국을 비롯, 일본, EU 등 다른 국가들이 4차 산업혁명에서 의료빅데이터를 활용하기 위해 펼치고 있는 정책과 비교 분석이 필요하다. 또 본 연구에서는 의료관련 국가정책을 수립하는 보건복지부, 의료빅데이터를 관리하는 국민건강보험공단, 국민건강보험심사평가원 등 관련 공무원 50명과 실제 의료계에 종사하는 의료인 50명을 조사한 결과를 분석한다. 또 실무 공무원과 병원의 빅데이터 관련 실무자를 만나 심층 인터뷰했다. 이를 통해 현재 의료빅데이터 수집의 현실을 파악하고 다른 국가에서 배울 점이 어떤 것인가 분석한다. 본 연구를 통해 의료빅데이터 수집이 현실화 되면 질병 데이터를 활용해 작게는 보험 상품을 만들 수 있는 등의 효과가 나타나게 된다. 의료빅데이터는 질병예방에도 활용할 수 있게 된다. 이외에도 신약개발이나 의료기기 개발 등 다양한 헬스케어 기업들의 활용도가 높아지게 된다. In the era of the Fourth Industrial Revolution, the healthcare industry is attracting attention. This is because it is regarded as a future core industry in line with an aging society. The global healthcare market is worth $ 6.15 trillion (based on 2013), according to market research agency Planetket Research. The Fourth Industrial Revolution is the fusion of reality and imagination. Healthcare industry and the Fourth Industrial Revolution are growing together as the next generation growth engines. In the fourth industrial revolution, it is important for the healthcare industry to grow that medical data is collected. The cloud is also a highway connecting reality and virtual. This is because big data has to be gathered here. However, due to regulatory policy, collecting medical big data is forbidden in Korea. Three regulations, obstructing to collect basic medical data, are: Excessive regulation of personal information, regulation of public information, and restrictions on the use of specific clouds. Therefore, it is necessary to analyze the policies between Korea and other countries such as the US, Japan, and the EU, in order to utilize medical big data in the Fourth Industrial Revolution. In this study, we analyzed the results of a survey of 50 public officials from the Ministry of Health and Welfare, which establishes national policy on medical care, the National Health Insurance Corporation, the National Health Insurance Evaluation and Examination Center, which manages medical big data. This will help you to understand the current status of medical big data system in Korea and what you would learn from other countries. Medical big data could be used for disease prevention, new drug development and medical device development.