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고영범,김명구,정용기 대한이비인후과학회 2014 대한이비인후과학회지 두경부외과학 Vol.57 No.10
Background and Objectives The anatomy surrounding the frontal sinus (FS) and the anterior ethmoid artery (AEA) is variable and complex. We tried to determine the value of AEA as a landmark for finding FS during endoscopic sinus surgery. Subjects and Method Using the high-resolution CT scans of coronal and sagittal reconstruction, the distance between AEA and FS (D-AF) and the number and type of intervening cells between these two structures were investigated. Next, the distance between AEA and the anterior skull base (D-AS) was measured and the correlation between D-AF and D-AS was analyzed. Results A total of 119 nasal cavities from 70 subjects was analyzed. Of these analyzed, AEA was located just behind the frontal recess in only 17 nasal cavities (14%) and one or two intervening cells were located between FS and AEA in the remaining 86% of the nasal cavities. The most frequent type of intervening cells was supra bullar cell, followed by supraorbital and frontal bullar cells. The mean D-AF and D-AS measurements were 8.58±5.56 mm (0-22.6 mm) and 1.65±1.90 mm (0-6.7 mm), respectively. D-AS was not significantly correlated with the distance between the FS and AEA (p=0.433), therefore, D-AS could not be predicted. Conclusion The relationship between FS and AEA was non-predictable, and in most cases, there were one or two intervening cells between FS and AEA. Therefore a thorough review of thin section CT scans is necessary. Korean J Otorhinolaryngol-Head Neck Surg 2014;57(10):687-91
골결손을 동반한 고위 경정맥구 박동성 이명의 수술적 치료 1예
고영범,부성현 대한이비인후과학회 부산,울산,경남 지부회 2014 임상이비인후과 Vol.25 No.1
A high jugular bulb is usually asymptomatic and incidentally found during otologic examination. But high jugular bulb dehiscence may cause vascular pulsatile tinnitus. It is thought to be one of the treatable cause of venous pulsatile tinnitus, but there were previous 2 case reports of surgical treatment for pulsatile tinnitus due to high jugular bulb dehiscence in Korean literature. The authors present a case of pulsatile tinnitus owing to dehiscent high jugular bulb which has been successfully treated by surgical reconstruction. We used conchal cartilage piece as a reconstruction material. The procedure was simple and easy to introduce and worth for it.
보안에 의거한 데이터(BIG DATA)의 효과적인 이용방법
고영범(Young-Beom Ko),조희준(Hee-Joon Cho),권호열(Ho Yeol Kwon) 한국IT서비스학회 2015 한국IT서비스학회 학술대회 논문집 Vol.2015 No.추계
미국,영국등의 선진국에서는 빅데이터 활용을 위하여, 비식별화를 통한 개인정보 활용에 대한 지침을 마련하였다. 최근들어 우리나라에서도 미래창조과학부에서는 개인정보의 비식별화를 통하여, 빅데이터의 사용을 활성화하기 위한 방안을 제시하였다. 이번에 미래창조과학부에서 발행한 “빅데이터 활용을 위한 개인정보 비식별화 사례집”에 개인정보 비식별화 방안을 가명처리, 총계, 데이터 값 삭제, 범주화, 마스킹등을 통하여, 비식별화를 할수 있다. 본 논문에서는 가명성을 이용하여, 비식별화를 하여도 데이터를 이용한 빅데이터의 효율적으로 활용할수 있는 방안을 제시한다.
고영범(Young-Bum Ko),박기철(Gi Cheol Park) 대한두경부종양학회 2013 대한두경부 종양학회지 Vol.29 No.2
The distant metastasis is found out in about 25-57% of the patients with renal cell carcinoma at the time of diagnosis. But, the incidence of metastases to the head and neck region, especially to the thyroid gland, is rare. Most of patients with metastatic renal cell carcinoma to the thyroid gland are asymptomatic at presentation as pa-tients with primary thyroid carcinoma. In the presence of clear cell tumor of the thyroid gland, the diagnostic con-siderations must include metastatic renal cell carcinoma. We report a case of thyroid metastasis from renal cell carcinoma at the time of diagnosis.
변형된 볼쯔만 탐색 전략을 사용하는 강화학습 기반 지능형 에이전트
고영범(Go Young-beom),오경환(Oh Kyung-whan) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1B
동적 프로그래밍과 마코프 결정 과정에 이론적 기반을 두고 있는 강화학습은 에이전트 스스로 환경과의 상호 작용을 통해 최적의 정책을 학습하는 것을 보장한다. 그러나 이를 위해서는 강화학습의 행동 선택에 관한 문제인 진동과 안정 사이의 딜레마(exploration-exploitation dilemma)를 해결할 수 있는 탐색 전략이 전제되어야 한다. 이 문제를 해결하기 위해 본 논문에서는 강화학습 알고리즘의 수렴에 필요한 행동 선택의 임의성과 경험을 통해 축적된 지식의 활용을 동시에 고려한 새로운 탐색 전략을 제안한다. 이를 통해 에이전트는 자율성과 적응성을 획득할 수 있다. 실험을 위해 본 논문에서는 실시간 온라인 학습에 적합한 Q-learning 알고리즘과 에이전트 시스템 연구에 있어 전통적인 문제인 추적문제를 사용한다.
고영범(Young-Bum Ko),박기철(Gi Cheol Park) 대한두경부종양학회 2015 대한두경부 종양학회지 Vol.31 No.2
Small cell carcinoma is mainly found in the lungs and extrapulmonary origins of small cell carcinoma in GI tract, head and neck, genitourinary system consists only 4% of the tumor. Thus, small cell carcinoma of the parotid gland is an extremely rare disease. Extrapulmonary small cell carcinoma is characterized by an aggressive clinical course with early metastasis. We report a case of small cell carcinoma of parotid gland in a 82-year-old woman with painless neck mass, who was managed with radiation therapy after surgery and review of relevant literatures.
이준석,고영범,박기철 대한이비인후과학회 2013 대한이비인후과학회지 두경부외과학 Vol.56 No.12
The existence of primary brancial cleft cyst carcinoma is controversial since first described by Volkmann in 1882. Martin and Khafif proposed criteria for diagnosis of primary branchiogenic carcinoma, which are now widely accepted in the literature. The most important criterion is the presence of squamous cell carcinoma arising from the benign squamous epithelium of branchial cleft cyst. We report a case of a 69-year-old man with branchial cleft cyst carcinoma, which was suspected to be cervical lymph node metastases from an unknown primary tumor. The subject underwent a surgical operation, and postoperative pathologic findings revealed a squamous cell carcinoma developing in the stratified squamous epithelial lining of the branchial cleft cyst. This case meets the criteria established by Martin and Khafif, thus we present it with a review of literature.
최규성,고영범,정용기 대한이비인후과학회 2017 대한이비인후과학회지 두경부외과학 Vol.60 No.7
Background and Objectives Deviated nose is a commonly encountered deformity, and the correction of deviated nose is the most difficult part of septorhinoplasty. Generally, additional cartilaginous graft is required for straightening the deviated segment. However, there are many cases where sufficient cartilage grafts are not available due to revision surgery or cases with small cartilage. In such cases, tilted cartilaginous dorsum should be corrected without grafting. The purpose of this study is to evaluate the usefulness of clocking suture single technique for cartilaginous deviation by analyzing the surgical results of cases who underwent corrective rhinoplasty without any cartilaginous graft. Subjects and Method From June 2009 to June 2016, 43 patients with tilted cartilaginous dorsum were corrected with clocking suture single technique. Cases underwent additional graft for straightening dorsum were excluded. The patients’ medical records and facial photographs were analyzed to assess surgical outcomes and complications. Surgical outcomes were graded as excellent, fair and poor according to patients’ satisfaction and evaluation by two physicians. Results Mean follow up period was 15.4 (5-39) months. There were 39 patients (90.7%) with excellent result, 3 patients (7.0%) with fair results, and 1 patient (2.3%) with poor result. Augmentation was performed with expanded polytetrafluoroethylene or septal cartilage in 26 patients (60.5%) and dorsal hump was removed in 22 patients (51.2%). Concomitant augmentation didn’t affect surgical results. No postoperative complication such as infection or inflammation were found. Conclusion The clocking suture single technique is an effective surgical method for the correction of dorsal cartilaginous deviation. Korean J Otorhinolaryngol-Head Neck Surg 2017;60(7):342-6