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인공 치아우식 발생 모델에서 디지털 방사선 공제술을 이용한 인접면 치아우식증의 진단
박정훈,최용석,황의환,이기자,최삼진,박영호,김경숙,진현석,홍경원,오범석,박헌국 대한구강악안면방사선학회 2009 Imaging Science in Dentistry Vol.39 No.1
Purpose : The purpose of the experiment was to evaluating the diagnostic ability of dental caries detection using digital subtraction in the artificial caries activity model. Materials and Methods : Digital radiographies of five teeth with 8 proximal surfaces were obtained by CCD sensor (Kodak RVG 6100 using a size #2). The digital radiographic images and subtraction images from artificial proximal caries were examined and interpreted. In this study, we proposed novel caries detection method which could diagnose the dental proximal caries from single digital radiographic image. Results : In artificial caries activity model, the range of lesional depth was 572-1,374 μm and the range of lesional area was 36.95-138.52mm². The lesional depth and the area were significantly increased with demineralization time (p<0.001). Furthermore, the proximal caries detection using digital subtraction radiography showed high detection rate compared to the proximal caries examination using simple digital radiograph. Conclusion : The results demonstrated that the digital subtraction radiography from single radiographic image of artificial caries was highly efficient in the detection of dental caries compared to the data from simple digital radiograph.
방사선사진의 인덱스-순서 분석을 통한 치아경조직의 탈염화 검출
박동현,박영호,김경숙,박정훈,이기자,최삼진,최용석,황의환,박헌국 대한구강악안면방사선학회 2009 Imaging Science in Dentistry Vol.39 No.2
Purpose : The purpose of this study was to develop the radiographic technique for detecting the demineralization which is known as indication of dental caries. Materials and Methods : This technique was based on the comparing of multiple radiographs which was irradiated by multiple X-ray spectra. For the meaningful comparing, the multiple radiographs were reconstructed to the dosimetrically consistent images using a standard material. The difference of resulting images of same target with multiple spectra represents the difference of response of material as regards the spectra. Results : We have found about 10% of demineralization of dental hard tissues particularly in the proximal region through the analyzing of differences. Conclusion : Most intriguing thing in this investigation was that the method to analyze difference shows us to an anatomic structure of dental hard tissues even if absolute values of optical density were excluded during the procedures.
정자영(Jeong, Ja-Yeong),황정훈(Hwang, Jeong-Hun),김갑수(Kim, Gap-Su) 대한교통학회 2008 대한교통학회 학술대회지 Vol.59 No.-
최근 도시의 지속가능한 발전을 위한 도시교통 체계의 구축이 활발히 추진되고 있다. 즉 자동차위주의 교통정책에서 대중교통과 녹색교통의 이용 증대를 위한 교통시설의 정비 및 서비스 개선이 대도시를 중심으로 추진되고 있다. 그 중에서도 자동차이용을 억제하여 교통량을 줄이고자 하는 교통수요관리정책에 많은 노력이 이루어지고 있다. 본 연구에서 다루는 공영주차장의 유료화 추진은 교통수요관리정책 중 주차수요관리기법에 해당하며, 즉 주차상한제 및 불법주차단속강화 등과 같이 주차공간을 제약함으로서 자가용승용차의 이용을 억제하는 것과 달리 주차요금의 인상을 통한 경제적 부담을 가중시키는 기법에 해당한다.
척수 신경이상과 동반된 변비환자의 병태생리 및 바이오피드백 치료효과
최지훈 ( Choe Ji Hun ),명승재 ( Myeong Seung Jae ),양석균 ( Yang Seog Gyun ),변정식 ( Byeon Jeong Sig ),윤인자 ( Yun In Ja ),권오련 ( Kwon O Lyeon ),고정은 ( Go Jeong Eun ),이윤정 ( Lee Yun Jeong ),이진혁 ( Lee Jin Hyeog ),홍원선 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 척수 신경에 이상이 있는 경우 변비가 발생하는 경우가 많다. 이 경우 장운동이나 직장항문 기능의 이상이 있을 가능성이 있으나 변비의 발생 기전에 대해서는 잘 알려져 있지 않다. 본 연구의 목적은 이러한 척수신경 이상이 있는 환자에서 변비의 병태생리를 알아보고 바이오피드백 치료효과를 알아보고자 하였다. <대상 및 방법> 변비클리닉에 변비를 주소로 내원한 환자들 중 척추손상(n=6), 척추협착(n=10), 척수염(n=4) 등으로 척추 신경에 이상이
Eun Suk Shin,Myung Ho Jeong,Young Hun Lee,Sun Il Ji,So Young Jeong,Ok Hee Lee,Jeong Ja Kang,So Young Yun,Jeong Eun Yoo,Hyung Wook Park,Ju Han Kim,Weon Kim,Young Keun Ahn,Jeong Gwan Cho,Jong Chun Park Korean Society of Critical Care Medicine 2006 Acute and Critical Care Vol.21 No.2
BACKGROUND: This study was aimed to evaluate the validity of the Global Registry of Acute Coronary Event (GRACE) in patients with acute coronary syndrome (ACS). METHODS: One thousand thirty hundred seventy eight patients (63.6+/-12.0 years, 921 male), who were admitted at coronary care unit (CCU) of Chonnam National University Hospital between January 2004 and December 2005, were analyzed. The patients were divided into two groups: the survived group (n=1,298, 871 male, 63.1+/-9.7 years) and the moribund group (n=80, 50 male, 67.4+/-8.5 years). Clinical characteristics, risk factors for atherosclerosis, echocardiographic findings, GRACE score and NT-proBNP were compared between groups. RESULTS: The overall mortality was 5.8 %, 80 out of 1,378 patients. Mortality was higher in patients with Killip IV (46.7%, 50 out of 107 patients) than Killip II or III and elderly patients more than 80 years (42.7%, 38 out of 89 patients). High Killip class and old age were associated with high mortality (p
( Ja Kyung Kim ),( Joo Hee Kim ),( Han Min Park ),( Yong Seol Jeong ),( Jong Hyeok Kim ),( Young Rim Song ),( Yong Il Hwang ),( Seung Hun Jang ),( Ki Suck Jung ),( Soo Haeng Lee ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Idiopathic hypereosinophilic syndrome (IHES) is a rare disorder defi ned by persistent blood eosinophilia, evidence of eosinophil-associated organ dysfunction and absence of secondary causes. Eosinophilic infi ltration and its mediator release cause damage to multiple organs. IHES can involve every organ system, but bladder involvement is rare. We report a case of idiopathic hypereosinophilic syndrome with both bladder and gastrointestinal tract involvement. A 43-year-old woman visited to our hospital because of urinary frequency, abdominal pain and diarrhea for several months. Abdominal pelvic CT scan showed diffuse wall thickenings in bladder and colon with small pelvic ascites. Laboratory investigation showed a marked peripheral eosinophilia and tissue biopsies confi rmed eosinophilic infi ltration in bladder wall, esophagus, and duodenum. She was treated with prednisolone and her symptoms as well as eosinophilia were gradually improved.
10일 혼합 요법의 헬리코박터 파일로리 1차 치료 제균율
Jeong Hun Park,Dongwoo Kim,Jung Wan Choe,Seung Young Kim,Sung Woo Jung,Jong Jin Hyun,정영걸,Ja Seol Koo,Hyung Joon Yim,이상우 대한상부위장관ㆍ헬리코박터학회 2020 Korean Journal of Helicobacter Upper Gastrointesti Vol.20 No.4
Background/Aims: To improve the eradication rate of a first-line therapy for Helicobacter pylori infection, alternate regimens such as sequential, concomitant, and hybrid therapies have been tried. The aim of this study was to evaluate the eradication rate of the 10-day hybrid therapy as a first-line therapy.Materials and Methods: This retrospective study enrolled 124 patients from the Korea University Ansan Hospital between April 2016 and December 2019. The 10-day hybrid therapy comprised 5 days of dual therapy (proton pump inhibitor [PPI] standard dose and amoxicillin 1 g, twice daily) followed by 5 days of quadruple therapy (PPI, amoxicillin 1 g, clarithromycin 500 mg, and metronidazole 500 mg, twice daily). We compared the 10-day hybrid therapy with the 10-day concomitant therapy comprising PPI, amoxicillin 1 g, clarithromycin 500 mg, and metronidazole 500 mg, twice daily. Eradication was assessed by a <sup>13</sup>C-urea breath test or gastroscopic biopsy at least 4 weeks after treatment completion.Results: The eradication rates of the 10-day hybrid and concomitant therapies were 74.2% (46/62) and 67.7% (42/62), respectively, in the intention-to-treat (ITT) analysis and 88.5% (46/52) and 82.4% (42/51), respectively, in the per-protocol (PP) analysis. There was no significant difference in the eradication rates between the two groups in the ITT (P=0.429) and PP analysis (P=0.380). Adverse events developed in 75.0% and 70.6% of patients in the hybrid and concomitant groups, respectively, but there was no significant difference (P=0.615).Conclusions: The 10-day hybrid therapy can be an option for a first-line therapy of Helicobacter pylori infection.