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홍제범 ( Je Beom Hong ),홍창기 ( Chang Ki Hong ),이규성 ( Kyu Sung Lee ),윤선옥 ( Sun Och Yoon ) 대한뇌종양학회·대한신경종양학회·대한소아뇌종양학회 2011 대한뇌종양학회지 Vol.10 No.2
We present a case of spinal accessory nerve cavernous hemangioma. A 44-year-old male patient visited our hospital because a mass at his foramen magnum had been found during a medical checkup. A magnetic resonance (MR) image revealed a well-enhanced mass in the foramen magnum, with displacement of the medulla oblongata to the left side by this mass. The lesion was resected using a far-lateral approach, and the pathological diagnosis was a cavernous hemangioma. Although cranial nerve cavernous hemangioma is a rare condition, it should be considered when making differential diagnoses of foramen magnum masses.
교통 사고 이후 발생한 요추부 압박골절에 한방복합입원치료로 호전된 환자 4례: 후향적 증례 연구
홍제락,김유종,김지수,이정열,김태규,유도현,최인석,이상원,Hong, Je-Rak,Kim, Yu-Jong,Kim, Ji-Su,Lee, Jeong-Ryol,Kim, Tae-Gyu,Yoo, Do-Hyun,Choi, In-Seok,Lee, Sang-Won 한방재활의학과학회 2017 한방재활의학과학회지 Vol.27 No.4
Objectives The objective of this study is to report 4 patients who had vertebral compression fracture after traffic accident, that had a complex korean medical admission treatment. Methods In this study we collected the data of traffic accident patients that came to receive intense Korean medical treatment, and had compression fracture of the lumbar spine. A total of 4 patients were studied and we compared the Visual Analogue Scale (VAS) score and the Pain-Free Walking Distance (PFWD) at addmission date and 19th day of hospitalization. Results After receiving an average of 22.25 days of admission treatment, all patients showed a significant decrease in VAS scores and increase in PFWD. The median VAS score at date of admission was 6.5 (VAS 6~9) and decreased to 3.5 (VAS 3~5), median PFWD was 37.5 (30~45) m and increased to 435 (420~450) m. Conclusions After complex korean medicine admission treatment, 4 patients with vertebral compression fracture caused by traffic accident showed decrease of pain and increase of walking distance. But there is a need for further studys to be done on treatment methods and evaluation methods.
이주형(Ju-Hyung Lee),손선용(Sun-Yong Son),오성한(Sung-Han Oh),홍제범(Je-Beom Hong),김한규(Han-Kyu Kim) 대한두개저학회 2017 대한두개저학회지 Vol.12 No.1
Purpose : The surgical excision is considered as the gold standard of cavernous malformation(CM) treatment. However, due to the high incidence of surgical morbidity, many surgeons feel very stressful for this disease. The authors reviewed their surgical cases of brainstem cavernous malformation in search of the safe surgical strategy for this dreadful disease. Materials and methods : From Sep. 2014 to Jul. 2016, total 14 cases of brainstem malformation were surgically resected using skull base technique with the use of intraoperative neuronavigation and neurophysiological monitoring. The clinical profile, radiological findings, surgical records were reviewed. The surgical videos were reviewed and the microsurgical findings were thoroughly investigated to identify the most efficient surgical techniques. Results : There were 6 women and 8 men aged 35.1 years old in average (11 - 58 years). And there are 1 case of midbrain CM, 11 cases of pontine CM, 2 cases of medulla oblongata CM. The surgical approaches were 8 telovelar approaches, 4 petrosal approaches, 1 far lateral approach and 1 midline suboccipital approach. The CMs were totally removed in all 14 cases and one case of them required the reoperation. The postoperative neurologic deficits include 5 cases of facial palsy, 6 cases of 6th n. palsy, 2 cases of motor deficit, 5 cases of sensory disturbance. Cerebrospinal fluid (CSF) leakage was developed in 2 cases. There was no mortality. Conclusion : The surgery of brainstem CM is difficult because of their critical location and surrounding neurovascular structures. However, brainstem CM can be surgically removed through the safe entry point using meticulous skull base technique.
감마나이프 방사선 수술로 조절되지 않은 두개저 수막종의 수술적 제거 : 증례보고
이재철(Jae Cheol Lee),정연구(Yeongu Chung),홍제범(Je Beom Hong),김한규(Han Kyu Kim) 대한두개저학회 2020 대한두개저학회지 Vol.15 No.2
Because of their deep location, surrounded by many vital neurovascular structures, skull base meningiomas have been regarded as challenging lesions for surgical treatment. Stereotactic radiosurgery has been reported to be safe and effective to control skull base meningiomas. However, the use of radiosurgery must be considered very cautiously in treating skull base meningiomas, especially younger patients. In this study, we report a case with a huge skull base meningioma who had received radiosurgery prior to surgical removal.
류시성(Sisung Liu),이주헌(Juheon Lee),홍제형(Je Hyeong Hong) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6
축 대칭 물체를 복원할 때 자유도를 줄여 문제를 단순화하기 위해 회전축을 사용한다. 선행 연구들은 기하학적 접근법과 반복적 최적화 알고리즘을 이용하여 회전축을 추정하였으나, 해당 방법들은 기계학습 모델에 비해 추론 시간이 상당히 길다는 단점이 존재한다. 이를 해결하고자, 본 연구에서는 MLP 기반 딥러닝 모델을 기반으로 회전축을 추정하는 방법과 평행이동 및 회전에 적합한 새로운 손실함수를 제안한다. 또한 준 뉴턴 방법 중 하나인 Limited memory Broyden–Fletcher–Goldfarb–Shanno algorithm (LBFGS) 기법을 학습 과정에 활용하여 정확하고 효율적인 회전축 추출을 가능함을 보인다. 본 연구에서 제안된 방법은 기존 연구 대비축 정확도 면에서 약간의 저하가 관찰되었으나, 추론시간에 있어서 약 1,000 배의 획기적인 감소를 보여준다.
김강현(Kang Hyeon Kim),이상민(Sang Min Lee),김한규(Han Kyu Kim),홍제범(Je Beom Hong),박세라(Sera Park) 대한두개저학회 2015 대한두개저학회지 Vol.10 No.2
Objectives : Giant tumors of the skull base are extremely rare. Therefore, no single center treats enough patients to accumulate significant numbers for meaningful analysis of outcomes after tumor resection. We report our experience of thirteen patients who had received surgical treatment successfully. Materials and Methods : Surgical approach is selectively perfomed based on the location of the tumor and surrounding anatomical structure. Twelve patients underwent extended translabyrinthectomy with combined anterior and posterior petrosectomy(ETLAPP) and one patient had received subtotal petrosectomy(SP). Tumor resection was achieved in all patients. Two patients underwent gross total removal(GTR) and eleven patients had received subtotal tumor resection(STR). Results : The mean age of the patients was 39 years (ranged from 7 to 60). The male to female ratio was 3:10. The average tumor size was 4.1×3.0×3.0cm. Of the thirteen patients, twelve patients had pre-operative cranial nerve deficits (CN II, III, V, VI, VII, VIII, XII) and another three patients had hemiparesis. Postoperative evaluation was performed for all patients after tumor resection. The new cranial nerve complications after surgery were found in five (38.5%) patient in the following order : facial palsy, hearing loss, extraocular paresis and double vision. The second most common morbidities were motor deficits (15.4%, n=2) in the early opstoperative period. In the pathological findings after surgery, schwannoma(n=5), meningioma(n=4), chondrosarcoma(n=1), pilocytic astrocytoma(n=1), embryonal carcinoma(n=1) and anaplastic oligodendroglioma(n=1) have been reported in excised tumors. Conclusion : Tumor resection is helpful to relatively young age of the patient with giant skull base tumor who do not have improvement in the conservative treatment. We found that the extended trans-labyrinthectomy combined with anterior and posterior petrosectomy are ways to minimize mortality and major morbidity. Further studies are needed to evaluate the effectiveness of the procedure in the future.
척추관 협착증 환자의 보행능력과 요추 주변 근육 단면적의 상관관계 연구
김민철 ( Min Chul Kim ),서영훈 ( Young Hoon Seo ),이상민 ( Sang Min Lee ),김유종 ( Yu Jong Kim ),홍제락 ( Je Rak Hong ),유도현 ( Do Hyun Yoo ),김지수 ( Ji Su Kim ),김태규 ( Tae Gyu Kim ),최재영 ( Jae Young Choi ),김태훈 ( Tae-hun 대한한의학회 한방재활의학과학회 2016 한방재활의학과학회지 Vol.26 No.3
Objectives The purpose of this study was to investigate the correlation between walking ability of lumbar spinal stenosis patients and the cross-sectional area (CSA) of lumbar paraspinal muscles. Methods This study was carried out on 62 lumbar spinal stenosis patients who had limited walking abilities because of neurogenic claudication (NC). All patients received more than 2 weeks of complex treatment at Mokhuri Neck&Back Hospital. CSA of lumbar paraspinal muscles was measured from axial T2-weighted MRI and divided by CSA of adjacent vertebral body to avoid influence of body statues (RCSA-Relative CSA). Pain Free Walking Distance and Numerical Rating Scale (NRS) was measured before and after treatment. Results The Pain Free Walking Distance had significantly increased in patients who had bigger RCSA of psoas muscle (r=0.313, p<0.05). Conclusions The psoas muscle can be a predictive factor for restoring walking ability of lumbar spinal stenosis patients who have limitations walking. (J Korean Med Rehabil 2016;26(3):109-117)