Elimination of Hunner’s Ulcers by Fulguration in Patients With Interstitial Cystitis: Is It Effective and Long Lasting?

류제만,박사현,송미호,전지연,홍성우,주명수 대한비뇨의학회 2013 Investigative and Clinical Urology Vol.54 No.11

Purpose: To evaluate the outcome of fulguration of Hunner’s ulcers (HUs) in painful bladder syndrome/interstitial cystitis (PBS/IC) that is refractory to conservative treatment. Materials and Methods: Patients diagnosed with refractory PBS/IC and treated with fulguration between 2011 and 2013 were identified through screening of medical records. To evaluate treatment outcomes, voiding diaries, the visual analogue scale (VAS) for pain, and two IC symptom questionnaires (pelvic pain and urgency/frequency scale [PUF] and O’Leary-Sant IC symptom index and IC problem index [OS]) were used. Fulguration was deemed to be successful if the VAS score was <2 or less than half of the preoperative VAS score. Results: In total, 27 patients with PBS/IC in whom conservative treatments had failed were enrolled. Two months after fulguration, decreases were observed in the mean 24-hour urinary frequency (from 16.0 to 10.2), 24-hour urgency episodes (8.0 to 1.8), and the VAS (5.8 to 1.2), PUF symptom (15.1 to 7.0), PUF bother (8.4 to 2.7), OS symptom (15.1 to 7.2), and OS problem (13.8 to 6.0) scores. At 5 and 10 months, all variables had worsened. At 2, 5, and 10 months, the success rates were 94.1%, 70.0%, and 33.3%, respectively. Four patients underwent one repeat fulguration on average 11.3 months after the first fulguration. Repeat fulguration was not significantly associated with any clinical characteristics. Conclusions: In PBS/IC that was refractory to medication or other conservative treatments, HU elimination by fulguration effectively improved symptoms. However, this effect decreased gradually over time.

Retropubic Versus Robot-Assisted Laparoscopic Prostatectomy for Prostate Cancer: A Comparative Study of Postoperative Complications

류제만,권택민,경윤수,홍성우,유달산,정인갑,김청수 대한비뇨의학회 2013 Investigative and Clinical Urology Vol.54 No.11

Purpose: To compare the complications of radical retropubic prostatectomy (RRP) with those of robot-assisted laparoscopic prostatectomy (RALP) performed by a single surgeon for the treatment of prostate cancer. Materials and Methods: The postoperative complications of 341 patients who underwent RRP and 524 patients who underwent RALP for prostate cancer at the Asan Medical Center between July 2007 and August 2012 were retrospectively reviewed and compared. Complications were classified according to the modified Clavien classification system. Results: RALP was associated with a shorter length of hospital stay (mean, 7.9 days vs. 10.1 days, p<0.001) and duration of urethral catheterization (6.2 days vs. 7.5 days, p<0.001) than RRP. Major complications (Clavien grade III–IV) were less common in the RALP group than in the RRP group (3.4% vs. 7.6%, p=0.006). There were no significant differences in medical complications between procedures. Considering surgical complications, urinary retention (7.0% vs. 2.7%, p=0.002) and wound repair (4.1% vs. 0.2%, p<0.001) were more common after RRP than after RALP. Extravasation of contrast medium during cystography was more common in the RRP group than in the RALP group (10.0% vs. 2.1%, p<0.001). Conclusions: RALP is associated with a lower complication rate than RRP.

단어의 공기 관계 그래프를 이용한 문서의 핵심 문장 추출에 관한 연구

류제,한광록,손석원,임기옥,Ryu, Je,Han, Kwang-Rok,Sohn, Seok-Won,Rim, Kee-Wook 한국정보처리학회 2000 정보처리논문지 Vol.7 No.11

본 논문은 문서의 내용을 요약하기 위한 방법으로서 단어의 공기 관계 그래프를 이용한 핵심 문장 추출 방법을 제안한다. 문서에서는 단어의 공기 관계 그래프를 이용하여 개념클러스터를 생성하고 문서내의 저자의 의도에 해당하는 주장을 찾는다. 그리고, 주장과 개념클러스터와의 관계로부터 키워드를 추출한다. 마지막으로 추출된 키워드와 주장을 이용하여 문서의 핵심 문장을 선택한다. 실험 및 평가는 수작업으로 추출한 핵심 문장과 비교를 통하여 이루어 졌으며, 기존의 방법과 비교하여 약 10%정도 향상된 성능을 보였다. In this paper,we propose an method of core sciences extractionusing word cooccrrence graph in order to summarize a document. For automatic extraction of core sentenees, we construct a mean cluster from word cooccurrence graph, and find insistence which corresponds a porposed of author. And then we extract keywords by using relationship between mean cluster and isistence. Finally, core senrences are sclected based on keywords and insitances. The esults are evaluated by comparing with manual extraction, and show that the extraction performance is improved about 10%.

비디오게임 개발과정

류제니 한국컴퓨터그래픽스학회 2020 한국컴퓨터그래픽스학회 학술대회 Vol.2020 No.7

靑果物 小賣市場의 流通經濟 分析

柳濟寅(Ryu, Je In) 조선대학교 지식경영연구원 1988 기업과 혁신연구 Vol.11 No.1

지연성 외상성 뇌실질내 출혈 환자의 치료를 결정하는 임상적, 영상학적 예후인자에 대한 평가

류제일 ( Je Il Ryu ),김충현 ( Choong Hyun Kim ),김재민 ( Jae Min Kim ),정진환 ( Jin Hwan Cheong ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.4

Purpose: Delayed, traumatic, intraparenchymal hemorrhage (DTIPH) is a well-known contributing factor to secondary brain damage that evokes severe brain edema and intracranial hypertension. Once it has occurred, it adversely affects the patient’s outcome. The aim of this study was to evaluate the prognosis factors for DTIPH by comparing clinical, radiological and hematologic results between two groups of patients according to whether surgical treatment was given or not. Methods: The author investigated 26 patients who suffered DTIPH during the recent consecutive five-year period. The 26 patients were divided according to their having undergone either a decompressive craniectomy (n=20) or continuous conservative treatment (n=6). A retrospective investigation was done by reviewing their admission records and radiological findings. Results: This incidence of DTIPH was 6.6% among the total number of patients admitted with head injuries. The clinical outcome of DTIPH was favorable in 9 of the 26 patients (34.6%) whereas it was unfavorable in 17 patients (65.4%). The patients with coagulopathy had an unexceptionally high rate of mortality. Among the variables, whether the patient had undergone a decompressive craniectomy, the patient’s preoperative clinical status, and the degree of midline shift had significant correlations with the ultimate outcome. Conclusion: In patients with DTIPH, proper evaluation of preoperative clinical grading and radiological findings can hamper deleterious secondary events because it can lead to a swift and proper decompressive craniectomy to reduce the intracranial pressure. Surgical decompression should be carefully selected, paying attention to the patient’s accom-panying injury and hematology results, especially thrombocytopenia, in order to improve the patient’s neurologic outcomes. [ J Trauma Inj 2015; 28: 223-231 ]

체류시간에 따른 정수장슬러지의 최적 폴리머 주입량

류제라,문용택 대한환경공학회 2001 대한환경공학회 학술발표논문집 Vol.2001 No.12

이미지 사전과 동사기반 문장 생성 규칙을 활용한 보완대체 의사소통 시스템 구현

류제,한광록 한국정보처리학회 2006 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.13 No.5

본 논문에서는 언어장애인이 쉽게 인식할 수 있는 이미지들을 이용한 보완대체 의사소통 시스템의 구현에 관하여 연구하였다. 특히 보완대체 의사소통 도구의 휴대성 및 이동성과 보다 유연한 형태의 의사소통 시스템 구현에 초점을 맞추었다. 이동성과 휴대성을 위하여 PDA와 같은 모바일 기기에서 운용될 수 있는 시스템을 구현하여 사용 장소의 제약에서 벗어나 여러 장소에서 일반인과 다름없는 의사소통을 할 수 있도록 하였으며, 용량이 큰 이미지 데이터의 저장 공간 한계를 극복하기 위하여 유선 또는 무선 인터넷 환경에서 클라이언트/서버 형태의 보완대체 의사소통 시스템을 설계하였다. 또한 사용자의 원활한 의사소통이 가능하도록 동사를 기준으로 하여 동사에 대응하는 명사들을 하위 범주화하여 이미지 사전을 구축하였다. 이를 위하여 문장을 구성하는데 가장 중요한 역할을 하는 품사인 동사에 초점을 맞추어 동사의 유형에 따라 생성되는 문장의 유형을 정규화 하였다. The present study implemented AAC(Augmentative and Alternative Communication) system using images that speech defectives can easily understand. In particular, the implementation was focused on the portability and mobility of the AAC system as well as communication system of a more flexible form. For mobility and portability, we implemented a system operable in mobile devices such as PDA so that speech defectives can communicate as good as ordinary people at any place using the system. Moreover, in order to overcome the limitation of storage space for a large volume of image data, we implemented the AAC system in client/server structure in mobile environment. What is more, for more flexible communication, we built an image dictionary by taking verbs as the base and sub-categorizing nouns according to their corresponding verbs, and regularized the types of sentences generated according to the type of verb, centering on verbs that play the most important role in composing a sentence.

이미지 사전과 동사기반 문장 생성 규칙을 활용한 보완대체 의사소통 시스템 구현

류제,한광록,Ryu, Je,Han, Kwang-Rok 한국정보처리학회 2006 정보처리학회논문지B Vol.13 No.5

본 논문에서는 언어장애인이 쉽게 인식할 수 있는 이미지들을 이용한 보완대체 의사소통 시스템의 구현에 관하여 연구하였다. 특히 보완대체 의사소통 도구의 휴대성 및 이동성과 보다 유연한 형태의 의사소통 시스템 구현에 초점을 맞추었다. 이동성과 휴대성을 위하여 PDA와 같은 모바일 기기에서 운용될 수 있는 시스템을 구현하여 사용 장소의 제약에서 벗어나 여러 장소에서 일반인과 다름없는 의사소통을 할 수 있도록 하였으며, 용량이 큰 이미지 데이터의 저장 공간 한계를 극복하기 위하여 유선 또는 무선 인터넷 환경에서 클라이언트/서버 형태의 보완대체 의사소통 시스템을 설계하였다. 또한 사용자의 원활한 의사소통이 가능하도록 동사를 기준으로 하여 동사에 대응하는 명사들을 하위 범주화하여 이미지 사전을 구축하였다. 이를 위하여 문장을 구성하는데 가장 중요한 역할을 하는 품사인 동사에 초점을 맞추어 동사의 유형에 따라 생성되는 문장의 유형을 정규화 하였다. The present study implemented AAC(Augmentative and Alternative Communication) system using images that speech defectives can easily understand. In particular, the implementation was focused on the portability and mobility of the AAC system as well as communication system of a more flexible form. For mobility and portability, we implemented a system operable in mobile devices such as PDA so that speech defectives can communicate as food as ordinary People at any Place using the system Moreover, in order to overcome the limitation of storage space for a large volume of image data, we implemented the AAC system in client/server structure in mobile environment. What is more, for more flexible communication, we built an image dictionary by taking verbs as the base and sub-categorizing nouns according to their corresponding verbs, and regularized the types of sentences generated according to the type of verb, centering on verbs that play the most important role in composing a sentence.

익산미륵사지 지반특성에 대한 지구물리학적 연구

류제라(Je Ra Ryu),서만철(Man Cheol Suh) 대한지구물리학회 2001 지구물리 Vol.4 No.1

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