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( Jisup Kim ),( Jinkyoung Kong ),( Soohyn Kim ),( Min Ae Cho ),( Doo Byung Chay ),( Soon Won Hong ),( Jae-hoon Kim ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-
목적: Lynch syndrome (LS) is an autosomal dominant genetic condition which increases the risk of developing colorectal, endometrial, and various other cancers. Inefficiency of selective screening method based on personal/family history has led to general use of universal screening method with 4-antibody panel (MLH1, MSH2, MSH6, PMS2) for detecting Mismatch Repair (MMR) gene deficiency. For cost-effectiveness of universal Lynch screening the use of 2-antibody panel composed of MSH6 and PMS2 have been suggested in patients with colorectal cancer. The purpose of this study is to evaluate the immunohistochemisrty results of missmatch repair gene expression in endometrial cancer. 방법: 120 endometrial carcinoma specimens derived from patients who performed hysterectomy from 2009 to 2016 were stained with 4-antibody panel (MLH1, MSH2, MSH6, PMS2) 결과: Overall, 49 out of 120 cases (40.8%) showed loss expression in at least one MMR genes. 16 case (21.3%) showed loss of MLH1 and PMS2. 11case (9.2%) showed loss of MSH2 and MSH6. 11 case (9.2%) showed loss of MSH6. 1 case showed loss of PMS2 expression. There was no case showing isolated loss of MLH1 or MSH2. 결론: Our finding proves the utility of 2-antibody panel (MSH6, PMS2) in screening of Lynch syndrome in endometrial cancer. Considering the cost-effectiveness, 2-antibody panel should be implemented for universal screening for Lynch syndrome in endometrial cancer patients.
Han Sung-Hoon,Lim Jisup,Kim Jun-Sik,Cho Jin-Hyoung,Hong Mihee,Kim Minji,Kim Su-Jung,Kim Yoon-Ji,Kim Young Ho,Lim Sung-Hoon,Sung Sang Jin,Kang Kyung-Hwa,Baek Seung-Hak,Choi Sung-Kwon,Kim Namkug 대한치과교정학회 2024 대한치과교정학회지 Vol.54 No.1
Objective: To quantify the effects of midline-related landmark identification on midline deviation measurements in posteroanterior (PA) cephalograms using a cascaded convolutional neural network (CNN). Methods: A total of 2,903 PA cephalogram images obtained from 9 university hospitals were divided into training, internal validation, and test sets (n = 2,150, 376, and 377). As the gold standard, 2 orthodontic professors marked the bilateral landmarks, including the frontozygomatic suture point and latero-orbitale (LO), and the midline landmarks, including the crista galli, anterior nasal spine (ANS), upper dental midpoint (UDM), lower dental midpoint (LDM), and menton (Me). For the test, Examiner-1 and Examiner-2 (3-year and 1-year orthodontic residents) and the Cascaded-CNN models marked the landmarks. After point-to-point errors of landmark identification, the successful detection rate (SDR) and distance and direction of the midline landmark deviation from the midsagittal line (ANS-mid, UDM-mid, LDM-mid, and Me-mid) were measured, and statistical analysis was performed. Results: The cascaded-CNN algorithm showed a clinically acceptable level of point-to-point error (1.26 mm vs. 1.57 mm in Examiner-1 and 1.75 mm in Examiner-2). The average SDR within the 2 mm range was 83.2%, with high accuracy at the LO (right, 96.9%; left, 97.1%), and UDM (96.9%). The absolute measurement errors were less than 1 mm for ANS-mid, UDM-mid, and LDM-mid compared with the gold standard. Conclusions: The cascaded-CNN model may be considered an effective tool for the auto-identification of midline landmarks and quantification of midline deviation in PA cephalograms of adult patients, regardless of variations in the image acquisition method.
Kim, Jisup,Choi, Sung-Eun,Lee, Keum Hwa,Jeong, Hyeon Joo,Shin, Jae Il,Lim, Beom Jin Hindawi 2019 BioMed research international Vol.2019 No.-
<P>Henoch-Schönlein purpura (HSP) is the most common systemic vasculitis in children, and renal involvement (HSP nephritis, HSPN) is a severe manifestation. HSPN is histologically classified by the International Study of Kidney Disease in Children (ISKDC) based on mesangial hypercellularity and the extent of glomerular crescents. Macrophages, categorized as M1 or M2, frequently infiltrate in various glomerular and tubulointerstitial diseases and infiltration of specific subtypes is associated with disease progression. Therefore, to identify whether infiltration of M1 or M2 macrophages has clinical significance, we quantified the subtypes of macrophages in 49 HSPN specimens and correlated the counts with histologic features and clinical parameters. Higher tubulointerstitial M2 counts were associated with chronic renal failure (CRF), ISKDC classes III-IV, and crescents (<I>P</I><0.001, 0.002, 0.001). Glomerular M2 counts were significantly related to ISKDC classes III-IV and crescents (area under curve, AUC 0.804, 0.833). Tubulointerstitial M2 counts were associated with CRF, ISKDC classes III-IV, and crescents (AUC 0.872, 0.778, 0.830). Tubulointerstitial M2 counts also revealed higher AUC than tubulointerstitial M1 counts for CRF (<I>P</I>=0.036) and ISKDC classes III-IV (<I>P</I>=0.047). Glomerular M2 counts revealed higher AUC than glomerular M1 counts for ISKDC classes III–IV (<I>P</I>=0.024). Tubulointerstitial M2 counts were the most powerful parameter for CRF (AUC 0.872) and revealed even higher AUC than ISKDC classification (AUC 0.716) with borderline significance (<I>P</I>=0.086) for CRF. In summary, tubulointerstitial M2 counts were a superior parameter to tubulointerstitial M1 counts and even to ISKDC classification indicating the presence of CRF.</P>
곽지섭(Jisup Kwak),김완홍(Wanhong Kim),강순희(Soonhee Kang),김재성(Jaesung Kim) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
최근 스마트그리드에 대한 관심이 고조되고 국가에서 정책적으로 스마트그리드를 추진하고 있다. 한국형 스마트그리드는 영역별로 비즈니스모델의 도출이 가능하도록 전력망-소비자-운송-신재생-서비스의 5개 영역으로 구분하여 추진하고 있고 관련 기술(전력 · 통신 · 반도체 · 디스플레이 · 가전산업 등) 또한 세계적인 경쟁력을 갖추고 있으나 원천기술 · 부품소재에 대해서는 선진국에 비해 뒤처지고 있다. 현재까지의 전력망은 폐쇄망을 기본으로 하고 있어 보안문제가 크게 부각된 적이 없으나 스마트그리드가 전력인프라에 정보 · 통신인프라가 융합된 새로운 비즈니스 플랫폼이기때문에 기존 정보 · 통신산업에서 발생했던 보안문제가 나타날 우려가 높다. 이에 따라 한국에서는 기존의 “주요정보통신 기반시설 보호지침” 및 “전력계통 신뢰도 및 전기품질기준 유지기준”과 2010년 입법예정인 “지능형전력망 구축 및 이용 촉진에 관한 법률”을 통해 스마트그리드의 보안문제에 대처하고 있다. 현재의 폐쇄형 전력망도 침해사고가 증가하고 있는 추세여서 스마트그리드는 더더욱 이에 대한 대처가 필요하다. 전기의 공급이 중단되는 경우, 그 손실은 산정하기 어려울 정도로 크므로 사이버 테러로 인한 비정상적 제어 또는 소프트웨어 에러에도 불구하고 소비자에게 지속적인 전력공급이 가능할 수 있도록 Failsafe 개념의 도입이 필요하다. 스마트그리드는 초기 설계시부터 보안 이슈를 전면에 내걸고 문제를 해결하면서 개발을 추진해야 미래의 효율적 에너지 이용과 저탄소 녹색성장을 이룰 수 있을 것이다.
Jaehong Kim,Kwon-soo Chun,Hyun Park,Jisup Lee,Seogkyu Kim 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.4
We investigate the energies of the accelerated proton beams from the cyclotron at KIRAMS by measuring the ratios of the 63Cu(p,2n)62Zn to the 65Cu(p,n)65Zn nuclear reactions in target stacks of five 100 μm Cu foils irradiated with a 2 μA beam current for 10 min. A comparison of the measured energy and the calculated values showed reasonable agreement within statistics and demonstrated that the energy of the proton beam could be determined by irradiating thin metallic Cu foil target with natural isotropic compositions and by using an activation analysis method.