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대량의 골 및 연부조직 결손을 동반한 분쇄 경골 골절에서의 급성 단축술과 점진적 연장술 - 증례 보고 -
한호성,허정규,송철호,백구현,이영호,공현식,Han, Ho-Sung,Huh, Jung-Kyu,Song, Cheol-Ho,Baek, Goo-Hyun,Lee, Young-Ho,Gong, Hyun-Sik 대한미세수술학회 2011 Archives of reconstructive microsurgery Vol.20 No.1
Traditional management of comminuted tibia fractures with massive bone and soft tissue defect includes soft tissue coverage and bone grafting. However, this method requires a large flap and a substantial amount of bone graft. Acute shortening can reduce the amount of required soft tissue and bone graft. We report a case of open tibia and fibula fracture with severe bone and soft tissue defect that was successfully treated by acute shortening of the tibia with immediate fibular strut bone graft and then by gradual lengthening of the tibia at its proximal metaphysis.
움직임 벡터의 1차원 히스토그램을 이용한 비디오 화질 평가 척도
한호성(Ho-Sung Han),김동오(Dong-O Kim),박래홍(Rae-Hong Park),심동규(Dong-Gyu Sim) 대한전자공학회 2008 電子工學會論文誌-SP (Signal processing) Vol.45 No.2
본 논문에서는 비디오 화질 평가를 위해 움직임 벡터의 1차원 히스토그램을 비디오의 특징으로 이용하는 새로운 reduced-reference (RR) 평가 방법을 제안하였다. 제안한 화질 평가 방법은 수신단에서 열화 비디오를 재구성하는 대신 비디오 스트림 (video stream)의 파싱 (parsing) 과정에서 움직임 벡터를 직접 얻을 수 있기 때문에 수행시간 면에서 기존의 방법들에 비해 효율적이다. 또한 송신단에서는 입력 비디오 영상 전체에 대해 누적된 움직임 벡터의 1차원 히스토그램을 보내기 때문에 데이터량 측면에서도 효율적이다. 여기서, 기존의 방법들이 영상 한 장씩에 대해서 평가를 했던 것과 달리 제안한 방법에서는 전체 영상에 대해 누적된 움직임 벡터의 1차원 히스토그램을 사용하였다. 히스토그램의 유사도를 측정하기 위해 히스토그램 인터섹션 (histogram intersection)과 히스토그램 차이 (histogram difference)을 사용하였다. 여러 가지 비트율 (bit rate), 영상크기, 프레임율 (frame rate)로 코딩된 비디오 클립 52개에 대해 제안한 방법과 기존의 방법들을 비교하였고, 제안한 방법의 효율성을 기존 방법들과의 비교 실험을 통해 보였으며, 실험 결과를 통해, 제안한 방법이 기존의 방법들보다 mean opinion score (MOS)와 유사함을 보였다. This paper proposes a novel reduced-reference assessment method for video quality assessment, in which one-dimensional (1-D) histograms of motion vectors (MVs) are used as features of videos. The proposed method is more efficient than the conventional methods in view of computation time, because the proposed quality metric decodes MVs directly from video stream in the parsing process instead of reconstructing the distorted video at the receiver. Moreover, in view of data size, the propose method is efficient because a sender transmits 1-D histograms of MVs accumulated over whole input video sequences. Here, we use 1-D histograms of MVs accumulated over the whole video sequences, which is different from the conventional methods that assessed each image independently. For testing the similarity between histograms, we use histogram intersection and histogram difference methods. We compare the proposed method with the conventional methods for 52 video clips, which are coded under varying bit rate, image size, and frame rate. Experimental results show that the proposed method is more efficient than the conventional methods and that the proposed method is more similar to the mean opinion score (MOS) than conventional algorithms.
분선충의 대량 감염후에 생긴 Nephrotic Syndrome
최상경(Sang Kyung Choi),하우송(Woo Song Ha),홍순찬(Soon Chan Hong),박순태(Soon Tae Park),한호성(Ho Seong Han),정의철(Eui Chul Jung),홍성종(Seong Jong Hong),김선영(Sun Young Kim) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.4
Strongyloides stercoralis is a nematode which is not well known. Infection by Strongyloides stercoraiis may be asymptomatic or mild. But in severe case, it may cause diarrhea, abdominal pain, hypoproteinemi and ultimately death, We report a case of hyperinfection with Strongyloides stercoralis, An exploratory laparatotny was performed under the impressian of peritanitis. After the operatiaon, the patient developed nephrotic syndrome and died 50 days after the operation.
전진숙,한호성,김기찬,정호중,Cheon, Jin-Sook,Han, Ho-Sung,Kim, Kee-Chan,Jung, Ho-Joong 대한생물정신의학회 1997 생물정신의학 Vol.4 No.1
The alcoholic neuropathies developed in approximately 34% of chronic alcoholics and the sexual dysfunction had been experienced in 8-54% of male alcoholics(Schiavi 1990). The aims of this study were to identify the prevalence of subclinical polyneuropathies and sexual disorders in alcohol dependence, and to evaluate the association between them. The nerve conduction velocity(NCV), electromyography(EMG), and pudendal somatosensory evoked potentials(SEPs) were tested for the male alcoholics(N=34) and controls(N=17 for NCV & EMG, N=25 for pudendal SEPs). The pudendal SEPs were measured by the following procedures, in which we stimulated the dorsal nerve of penis attached by the ring electrode(stimulus intensity, three times of threshold : stimulus rate, 1-4.7Hz : stimulus duration, 0.1 or 0.2msec), and recorded at the scalp(active electrode, 2cm behind Cz : reference electrode, Fz). The NCV and EMG detected signs of peripheral neuropathies in 79.4% of alcoholics. Among the alcoholics, 64.7% were abnormal on the pudendal SEPs. Among the alcoholics who revealed abnormality on EMG and NCV, 81.4% were abnormal on the pudendal SEPs, in which 51.9% were not responded. The P1 latencies of pudendal SEPs on neuropathic alcoholics were significantly delayed(p<0.05) than non-neuropathic alcoholics. There was a relative correlation between peripheral neuropathies and sexual disorders in the alcoholics. The prevalence of subclinical neuropathies and sexual disorders seemed to be much higher in alcohol dependence than expectation, and these two problems were relatively correlated, and our results suggested that the peripheral polyneuropathies were one of the prerequisites of sexual disorders.
이구,한호성,유진종,정성훈,Lee, Goo,Han, Ho-Seong,You, Jin-Jong,Chung, Sung-Hoon 대한영상의학회 1993 대한영상의학회지 Vol.29 No.3
Since Kappis described percutaneous celiac plexus block in 1914, variations and refinements of his technic have been proposed. Recently. computed tomography (CT) guided nerve block has improved results of the block and made it safer, particularly when neurolytic druge are injected for the relief of intractable abdominal pain caused by malignancy or chronic pancreatitis. We report a case of CT-guided alcohol block of the celiac plexus with the anterior approach in a patient with a common bile duct carcinoma