Clinical Outcome of Modified Cervical Lateral Mass Screw Fixation Technique

Kim, Seong-Hwan,Seo, Won-Deog,Kim, Ki-Hong,Yeo, Hyung-Tae,Choi, Gi-Hwan,Kim, Dae-Hyun The Korean Neurosurgical Society 2012 Journal of Korean neurosurgical society Vol.52 No.2

Objective : The purpose of this study was 1) to analyze clinically-executed cervical lateral mass screw fixation by the Kim's technique as suggested in the previous morphometric and cadaveric study and 2) to examine various complications and bicortical purchase that are important for b-one fusion. Methods : A retrospective study was done on the charts, operative records, radiographs, and clinical follow up of thirty-nine patients. One hundred and seventy-eight lateral mass screws were analyzed. The spinal nerve injury, violation of the facet joint, vertebral artery injury, and the bicortical purchases were examined at each lateral mass. Results : All thirty-nine patients received instrumentations with poly axial screws and rod systems, in which one hundred and seventy-eight screws in total. No vertebral artery injury or nerve root injury were observed. Sixteen facet joint violations were observed (9.0%). Bicortical purchases were achieved on one hundred and fifty-six (87.6%). Bone fusion was achieved in all patients. Conclusion : The advantages of the Kim's technique are that it is performed by using given anatomical structures and that the complication rate is as low as those of other known techniques. The Kim's technique can be performed easily and safely without fluoroscopic assistance for the treatment of many cervical diseases.

Characteristics of the Germline <em>MEN1</em> Mutations in Korea: A Literature Review

Seong Cheol Lee,Jun Won Min,You-Me Kim1,Myung-Chul Chang 대한갑상선-내분비외과학회 2014 The Koreran journal of Endocrine Surgery Vol.14 No.1

Purpose: Multiple endocrine neoplasia type 1 (MEN-1) is an autosomal dominant disease caused by the <em>MEN1</em> germline mutation. We reviewed previous reports in order to sum-marize the characteristics of germline <em>MEN1</em> mutation in Korea.Methods: We retrieved the relevant literature regarding <em>MEN1</em> germline mutation in Korea using the Pubmed (<a href="http://www.pubmed.org/">http://www.pubmed.org/</a>) and Koreamed (<a href="http://www.koreamed.org/">http://www.koreamed.org/</a>) databases from 2000 to 2012. We evaluated the pedigree of the patients in order to exclude the same, repeated families. We collected all data on the types of mutations and clinical characteristics.Results: There were nine studies with 12 cases of <em>MEN1</em> mutations in Korea. Two cases were sporadic MEN-1. C.196_200dupAGCCC was reported in three families. There were six cases of frameshift mutation, three cases of missense mutation, two cases of nonsense mutation, and one case of splice site mutation. Five mutations were novel mutations not previously reported.Conclusion: We summarized the characteristics of germline <em>MEN1</em> mutations in Korea. Genetic testing of <em>MEN1</em> is rare in Korea; however, it will be useful in preclinical diagnosis and genetic counseling.

인공지능 환경에서 이닝별 데이터를 이용한 KBO 승패 예측

김태훈 ( Tae-hun Kim ),임성원 ( Seong-won Lim ),고진광 ( Jin-gwang Koh ) 한국정보처리학회 2020 한국정보처리학회 학술대회논문집 Vol.27 No.2

과거 몇 년간의 데이터를 기반으로 현재 KBO 승패를 예측하고자 하는 것으로, 경기 초반 페이스가 얼마나 승패에 영향을 미치는지 파악하고자 한다. 경기의 이닝별 데이터로 딥러닝·머신러닝을 이용해 승리 팀을 예측하여 리그 순위를 예측하고, Flask 웹 프레임워크를 통해 입력값을 받아 예측해 주는 웹사이트를 구축하였다.

건조방법에 따른 하수슬러지 건조속도 비교 및 경제성 평가

박성훈 ( Seong-hun Park ),김한석 ( Han-seok Kim ),이승원 ( Seung-won Lee ) 한국환경기술학회 2021 한국환경기술학회지 Vol.22 No.3

In this study investigated the effect of the chemical injection ratio on the drying rate of sewage sludge. Then the economic efficiency was evaluated by comparing the results of the NIR(near infrared ray) and microwave drying rate test. The near infrared ray device showed drying speed of 31.9 %, 28.1 %, and 27.1 % at polymer dose ratio of 8 %, 10 %, and 12 %, respectively. Compared to 8 % polymer dose ratio, polymer dose ratio of 10 % and 12 % showed differences of 8.0 % and 13.6 % respectively, suggesting that drying efficiency decreased as polymer dose ratio increased. The microwave device showed drying speed of 26.2 %, 24.3 %, 21.3 % at polymer dose ratio of 8 %, 10 %, and 12 %, respectively. Compared to 8 % polymer dose ratio, polymer dose ratio of 10 % and 12 % showed differences of 5.2 % and 13.4 % respectively, suggesting that drying efficiency decreased as polymer dose ratio increased. Drying evaluation estimated the treatment cost of near infrared ray device at optimal dose ratio(6 %) was 35,591 won/ton while that of actual dose ratio(8 %) was 38,928 won/ton. Drying evaluation estimated treatment cost of microwave device at optimal polymer dose ratio(6 %) and at 8 % to be 16,683 won/ton and 18,352 won/ton, respectively.

Multiple Markers of Contrast Induced Nephropathy after the Percutaneous Coronary Intervention

Byoung-won Park,Seong Soon Kwon,Min Ho Lee,Do Hoi Kim,Min Su Hyon,Duk Won Bang 순천향대학교 순천향의학연구소 2018 Journal of Soonchunhyang Medical Science Vol.24 No.1

Objective: Contrast-induced nephropathy (CIN) frequently occurs after percutaneous intervention. Objective of this study was to investigate the usefulness of serum cystatin C, neutrophil gelatinase-associated lipocalcin (NGAL), urinary kidney injury molecule-1 (KIM-1), and interleukin-18 (IL-18) as early predictors for CIN after percutaneous coronary intervention (PCI). Methods: In 53 patients who underwent PCI were enrolled. Serum creatinine and cystatin C level were measured immediately before, and 24 hours and 48 hours after catheterization. Serum NGAL, urinary KIM-1, and IL-18 were measured immediately before, and 4 hours, 24 hours, and 48 hours after catheterization. CIN was defined as a rise in creatinine 0.5 mg/dL or 25% above baseline. Results: CIN occurred in four patients (7.5%). Serum cystatin C levels were higher at 24 hours and 48 hours in CIN patients than in those without CIN (P<0.05). Serum NGAL levels were higher at 48 hours in CIN patients than in those without CIN. Urinary KIM-1 levels were higher at 48 hours in CIN patients than in those without CIN. There were no significant markers of CIN on multi-variate analysis. Conclusion: In this study, the occurrence of CIN after PCI was 7.5%. Although there were some time-course changes in serum cystatin C and urinary KIM-1 after PCI, there was no significant predictor for CIN after PCI.

國內飼育 犬에 있어서 心臟絲狀蟲의 感染率에 관한 調査 硏究

Ji Hee Seong(成知禧),Hwa Joong Yoon(尹和重),Won Chang Lee(李元暢),Kwang Ho Kim(金光浩),Seung Won Kang(姜承遠) 한국예방수의학회 1996 예방수의학회지 Vol.20 No.2

The purpose of this study was carried out an epidemiological survey on the prevalence rate of the canine heartworms in Seoul City and the districts of Pa-Ju, Seong-Nam and Po-Chon in Kyonggi province of Korea from September 1994 to the end of September 1995. The blood samples from 292 male and 193 female dogs (pet, 363 ; fighting dogs, 60 ; working dogs, 62) were examined for the adult heartworms cuticle antibodies using the enzyme-linked immunosorbent assay (ELSA) kits. The test was designed to detect the antibodies of the host against the specific cuticle antigens produced with the adult heartworms.

배구 서브리시브에 따른 팀 간 공격 차이 분석

김종원 ( Jong Won Kim ),김주학 ( Joo Hak Kim ),김진환 ( Jin Hwan Kim ),홍성진 ( Seong Jin Hong ) 한국스포츠정책과학원(구 한국스포츠개발원) 2011 체육과학연구 Vol.22 No.3

이 연구는 국내 남자프로배구경기에서 나타난 서브리시브에 따른 팀간 공격 차이를 서브리시브의 유효성, 세터/비세터에 의한 세트, 세터의 위치, 공격형태, 공격결과를 기반으로 어떠한 차이가 있는지를 알아보기 위하여 NH농협 2009~2010 V리그 남자프로배구경기 126경기를 대상으로 하였다. 분석된 요인들을 기반으로 팀간 공격형태별 빈도, 대전팀간 교차분석, 공격형태별 성공 비율 차이를 분석하여 다음과 같이 나타났다. 첫째, 요인에 따른 공격형태별 빈도를 분석한 결과, 서브리시브가 성공하였을 경우 7개팀 중 5개팀이 속공공격, 실패하였을 경우 7개팀 모두가 오픈공격의 빈도가 높게 나타났다. 둘째, 요인에 따른 대전팀 교차분석의 차이를 검증해 본 결과 차이가 나타났다. 시즌 1위팀인 S팀은 7위팀인 A팀보다 서브리시브 성공률에서 10%이상의 차이가 나타났으며, 서브리시브의 성공·실패와 상관없이 7개팀 모두 96%이상의 세트가 세터에 의해 이루어지는 것으로 나타났다. 또한, 공격결과 성공률 평균에서는 상위팀인 S팀·H팀(56.9%), 중위팀인 D팀·L팀(54.7%), 하위팀인 W팀·K팀·A팀(47.7%)로 나타나 상위팀일수록 더 높은 공격결과 성공률 평균이 나타났다. 셋째, 공격형태별 성공 비율 차이를 분석한 결과, 이동공격을 제외한 모든 공격형태에서 차이가 나타났다. 오픈공격에서는 S팀이 D팀은 제외한 모든 팀보다 높은 오픈공격 성공 비율의 차이가 나타났으며, A팀은 W팀을 제외한 모든 팀에게 높은 오픈공격 성공 비율의 차이를 나타내주는 특징을 보였다. 시간차공격에서는 K팀이 A팀을 제외한 모든 팀에게 높은 시간차공격 성공 비율의 차이를 나타내주었으며, 속공공격에서는 H팀이 D팀을 제외한 모든 팀에게 높은 속공공격 성공 비율의 차이가 나타났다. 후위공격에서는 하위팀인 W팀·K팀·A팀에서 상위팀들에게 높은 후위공격의 성공 비율의 차이를 나타내주는 특징을 보였다. 퀵오픈공격에서는 A팀이 K팀은 제외한 모든 팀에게 높은 퀵오픈공격 성공 비율을 나타내주는 특징을 보였다. 서브리시브에 따른 팀 간 공격에서 서브리시브의 유효성, 세터/비세터에 의한 세트, 세터의 위치, 공격형태, 공격결과에 따라 팀 간 차이가 나타났다. 안정된 서브리시브와 세트는 여러 공격형태와 높은 공격성공률과의 관계가 매우 높다고 볼 수 있다. 대부분의 기록에서 승리한 팀이 패배한 팀보다, 시즌 순위 기록으로 상위팀이 하위팀보다 우위를 나타내 여러 요인들의 안정 및 높은 성공률을 위하여 꾸준한 연습과 대전팀의 경기기록에 대한 연구가 필요하다. The study was to compare the differences of attacking patterns related to serve receives basing on effectiveness of serve receives, setter/non-setter, location of setter, type of attacks and outcomes of attacks. The subjects were 126 games in 2009~2010 Korean NH Nonghyub V-league men`s championships. The analysed factors were considered on frequencies of type of attacks by each team, cross comparisons between teams played and a ratio of successful outcome by the type of attacks. The results were found as following belows; Firstly, in the comparisons of frequencies on the type of attacks, 5 teams among 7 teams shown greater frequencies on counter-attacks while the teams were winning. Secondly, there were significant differences of types of attacks between teams. The championships` winner, team S was greater than other teams about 10 % of successful serve-receives and 96% of sets were done by setter without the relationships of successful or unsuccessful serve-receives. Also, the successful percentage of attacking outcomes were ordered by ranks such as superior team S and H (56.9%), mid-ranks team D and L (54.7%) and inferior team W, K and A (47.7%). Thirdly, in the comparisons of successful ratio of type of attacks, there were significant differences between the type of attacks except moving-attacks. In the open-attacks, the ratio by team S was greater than team D. In addition, there was significant difference on the ratio by team A excepted the comparing with team W. In the time difference attacks, the ratio by team K was different comparing to other teams excepting team A. In the counter-attacks, team H were greater ratio excepting to team D. In the backward-attacks, the inferior teams (W, K and A) made greater successful ratio of attacks against the superior teams. In the quick-attacks, there was grater ratio by team A against others excepted to team K. There were differences of the effectiveness of serve-receives, sets by setter/ non-setter, location of setter, type of attacks and outcome of attacks depending on the teams. The stable serve-receives and sets were highly relevant to the various types of attacks and greater ratio of successful attacks. The continuous practice and study on oppositional data are required in order to enhance their performances because the winning and superior teams were stable ratio of successful attacks rather than the losing and inferior teams.

인공지능 모델에 따른 한국 프로야구의 승패 예측 분석에 관한 연구

김태훈 ( Tae-hun Kim ),임성원 ( Seong-won Lim ),고진광 ( Jin-gwang Koh ),이재학 ( Jae-hak Lee ) (사)한국빅데이터학회 2020 한국빅데이터학회 학회지 Vol.5 No.2

본 연구에서는 인공지능 모델에 따른 한국 프로야구의 승패 예측 분석에 관한 연구를 했다. 승리할 팀과 해당 팀의 최종 리그 순위를 예측했고, 사용자의 편의를 위해 웹사이트도 구축했다. 각 1·3·5이닝 별로 가장 정확도가 높으면서도 오차가 적은 모델을 최적 모델로 선정해 승·패 결과를 예측했고, 이를 토대로 순위표를 작성했다. 결과표는 2020년 개막인 5월 5일부터 8월 30일까지의 예측 결과를 바탕으로 작성했다. 기아타이거즈가 아닌 다른 구단끼리의 경기는 실제 결과를 사용했다. 머신러닝 모델은 KNN과 AdaBoost가 최적 모델로 선정되었으며, 실제 순위와 비교해 본 결과, 경기가 진행될수록, 예측 결과의 순위 오차가 점점 작아지는 것을 확인했다. 딥러닝 모델은 89%의 정확도를 기록했고, 머신러닝 모델과 마찬가지로 경기를 진행할수록 예측 결과 순위 오차가 작아지는 것을 확인했다. 실험 결과는 한국 프로야구 승·패 결과 예측뿐 아니라 다양한 분야에서 사용할 수 있을 것으로 사료된다. 방송국에서 야구 경기를 중계하는 중 이닝별로 인공지능 알고리즘이 예상한 승·패 여부를 중계화면에 띄울 수 있다. 시청자들에게 새로운 흥미를 일으킬 수 있을 것이고, 나아가 구단의 감독들이 이닝마다 데이터를 분석해 경기 중 유동적으로 승리하기 위한 전략을 세울 수 있을 것으로 기대된다. In this study, we conducted a study on the win-loss predicton analysis of korean professional baseball by artificial intelligence models. Based on the model, we predicted the winner as well as each team’s final rank in the league. Additionally, we developed a website for viewers’ understanding. In each game’s first, third, and fifth inning, we analyze to select the best model that performs the highest accuracy and minimizes errors. Based on the result, we generate the rankings. We used the predicted data started from May 5, the season’s opening day, to August 30, 2020 to generate the rankings. In the games which Kia Tigers did not play, however, we used actual games’ results in the data. KNN and AdaBoost selected the most optimized machine learning model. As a result, we observe a decreasing trend of the predicted results’ ranking error as the season progresses. The deep learning model recorded 89% of the model accuracy. It provides the same result of decreasing ranking error trends of the predicted results that we observe in the machine learning model. We estimate that this study’s result applies to future KBO predictions as well as other fields. We expect broadcasting enhancements by posting the predicted winning percentage per inning which is generated by AI algorism. We expect this will bring new interest to the KBO fans. Furthermore, the prediction generated at each inning would provide insights to teams so that they can analyze data and come up with successful strategies.

격투스포츠 선수의 스포츠맨십 분석

박태훈(Park Tae-Hoon),유기성(Yoo Ki-Seong),유원용(Ryu Won-Yong),김영욱(Kim Young-Wook),이양구(Lee Yang-Gu),공창빈(Kong Chang-Bin),이상호(Lee Sang-Ho),김태영(Kim Tae-Young) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.3

This research examines whether difference that is some in inclination of combat sports player's sportsmanship is, and accordingly is purposeful to clear relation. combat sports (fencing, Taekwondo, boxing, induction, wrestling, wrestling) player who research target is having player life in middle·high·an university 399 people be . Used Korean-made measure (KMSOS) that Seong-changhun (2003) verifies changing based on Vallerand MSOS by a tool to measure sportsmanship of players. Data processing used SPSS 12.0 programs. Did reliability analysis that use Cronbach'a coefficient to verify believability of an irradiation tool, Difference of sportsmanship used t-test, one-way ANOVA. In this research, drew following conclusion. First, man appeared higher level than woman in wave and human desire, decision respect, and woman appeared higher level than man in victory or defeat excessive fondness. Second, exercise immersion, decision respect, victory or defeat excessive fondness appeared level that minority is taller than majority. Third, in exercise immersion high school player decision respect appear, and tendency of level that middle school playing the first stone is high in victory or defeat excessive fondness appeared. Fourth, striking radical type of player appeared higher level than Geuraepeulring type of player in companion respect factor. Fifth, player less than exercise career 4 years appeared higher level than player less than 7 years and player more than 7 years for victory or defeat excessive fondness factor. Sixth, Taekwondo for best and companion respect factor, high level appeared to boxing item players.

High metabolic tumor volume and total lesion glycolysis are associated with lateral lymph node metastasis in patients with incidentally detected thyroid carcinoma

Kim, Bo Hyun,Kim, Seong-Jang,Kim, Keunyoung,Kim, Heeyoung,Kim, So Jung,Kim, Won Jin,Jeon, Yun Kyung,Kim, Sang Soo,Kim, Yong Ki,Kim, In Joo Springer Japan 2015 Annals of nuclear medicine Vol.29 No.8

<P><B>Objective</B></P><P>The objective of this study was to investigate whether total lesion glycolysis (TLG) and metabolic tumor volume (MTV) measured by <SUP>18</SUP>F-fluorodeoxyglucose (<SUP>18</SUP>F-FDG) positron emission tomography/computed tomography (PET/CT) could predict the aggressiveness and lymph node metastasis (LNM) in patients with incidentally detected differentiated thyroid carcinoma.</P><P><B>Methods</B></P><P>A total 358 patients with focal FDG-avid thyroid incidentaloma during cancer evaluation were enrolled. Among 235 patients in whom fine-needle aspiration biopsy was performed, 51 patients underwent total thyroidectomy with LN dissection. We analyzed the relationship between volume-based parameters and clinicopathologic characteristics.</P><P><B>Results</B></P><P>The mean age and tumor size were 57.1 ± 11.3 years and 1.15 ± 0.81 cm, respectively. The prevalence of malignancy was 21.7 % (51/235). When SUV<SUB>max</SUB> > 5.91, MTV2.5 > 2.05 cm<SUP>3</SUP>, and TLG2.5 > 9.09 were used as cutoff points, sensitivity, specificity, and area under curve (AUC) for prediction of lateral LNM were 77.9, 69.1 %, 0.716 (<I>P</I> = 0.047), 77.8, 88.1 %, 0.839 (<I>P</I> < 0.001), 77.8, 85.1 %, and 0.815 (<I>P</I> = 0.002), respectively. However, MTV and TLG had no value in prediction of central LNM, extrathyroidal extension, and multifocality. On comparison ROC curve analysis, the MTV and TLG showed the statistical differences for the prediction of lateral LNM compared with SUV<SUB>max</SUB> (all <I>P</I>’s < 0.05).</P><P><B>Conclusions</B></P><P>This study has shown for the first time that volume-based PET functional parameters had a significant value for the prediction of lateral LNM in incidentally detected PTC. These results suggest that higher MTV and TLG can be potential new risk factors for preoperative risk stratification. The usefulness of TLG and MTV in preoperative risk stratification in patients with PTC needs to be confirmed in further large studies.</P>