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이문환,조규석,Lee, Mun-Hwan,Jo, Gyu-Seok 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.12
Taumatic pulmonary pseudocyst is a rare complication of chest bunt trauma. Recently, we experienced a case of traumatic pulmonary pseudocyst in right lower lobe. The patient`s anterior chest was directly strucken by steering wheel and his car was intervened between two cars. He complained of both chest pain and dyspnea. He was diagnosed as multiple rib fractures with pulmonary contusion, initially. And then the right pulmonary lesion changed to traumatic pulmonary pseudocyst in 10 days after trauma. He was treated sucessfully with conservative management. In this article, we present the case and review the traumatic pulmonary pseudocyst with related articles.
이문환,박주철,유세영,Lee, Mun-Hwan,Park, Ju-Cheol,Yu, Se-Yeong 대한흉부심장혈관외과학회 1996 Journal of Chest Surgery (J Chest Surg) Vol.29 No.1
본논문은 포낭(saccular)형인 내경동맥 동맥류의 치험 2례를 기술하였다. 수술은 전신마취하에 내경동맥 동맥류 절제후 shunt없이 단단문합하였다. 환자들은 모두 신경학적 후유증없이 회복되었다. Aneurysms of the extracranial carotid arteries are relativeley rare in comparison with the total arterial system, but can cause death or a cerebrovascular accident. The treatment of choice is resection of the aneurysm and restoration of arterial continuity. This report describes two cases of extracranial internal carotid arterial aneurysm, which were saccular type. In both cases, the operations were performed under general anesthesia without shunt. The patients were recovered without any neurological sequelae.
유착성 관절낭염 환자에 대한 테이프 적용이 관절가동범위와 통증감소에 미치는 영향
이문환,오성태,박래준,Lee Mun-hwan,O Seong Tae,Park Rae-joon 대한물리치료학회 2003 대한물리치료학회지 Vol.15 No.3
The purpose of this study was to assess the effectiveness of taping therapy for adhesive capsulitis patients. The subjects were consisted of 40, male 18, female 22, average age was 59 years old. To find out the effectiveness of taping therapy, we sampled 20 patients treated with H/P, electrical therapy and scapular pattern & hold-relax technique of PNF(control group), and 20 patients treated same as control group with taping therapy(experimental group). The results were as follow : 1. There was a statistical significance of shoulder flexion, abduction, external rotation and VAS in both group(P<0.05). 2. There was not statistical significance of shoulder flexion and external rotation(P>0.05), but abduction had a statistical significance between taping group and non-taping group(P<0.05). 3. VAS was observed a statistical significance between 3rd and 4th post treatment(P<0.05). These results are imply that taping therapy has a effectiveness of shoulder motion and VAS for adhesive capsulitis.
The Effects of Taping on Metacarpophalangeal Disorders of the Thumb
이문환,김응창,이수연,박래준,Lee, Moon-Hwan,Kim, Eung-Chang,Lee, Soo-Yeon,Park, Rae-Joon The Korean Society of Physical Therapy 2010 대한물리치료학회지 Vol.22 No.1
Purpose: This study investigated the effect of taping therapy on metacarpophalangeal (MCP) disorders of the thumb. Methods: Twenty eight patients were enrolled in this study. They were randomly assigned to experimental (n=16) or a control group (n=12). The experimental and control groups received Ultrasound (Gymna Pulson 200) operating at a frequency of 3MHz and an intensity of $1.0W/cm^2$ with a 100% duty cycle for 10 minutes. The experimental group received, additionally, taping using Kinesiotape on the injured thumb. The following parameters were measured:pain during rest and flexion of the thumb, tenderness, range of motion (ROM), pinch and spherical grip power pre- and post-treatment. This study was carried out 3 days per week throughout the 2-week treatment. Results: There were significant improvements in pain during rest and flexion of the thumb, tenderness, ROM, pinch and spherical grip power between pre- and post-treatment times in both groups (p<0.05). However, there was a significant difference in all parameters between the experimental and control groups (p<0.05). Finally, the satisfaction level after intervention was significantly higher in the experimental group than in the control group (p<0.05). Conclusion: Taping is effective for treating pain and dysfunction in patients with thumb disorders.
스케일 특성을 이용한 미래 확률강우량 산정기법의 적용성 평가
이문환,신상훈,배덕효,Lee, Moon-Hwan,Shin, Sang-Hoon,Bae, Deg-Hyo 한국수자원학회 2012 한국수자원학회논문집 Vol.45 No.3
본 연구에서는 스케일 특성을 이용하여 기후변화에 따른 일단위 이하의 극한강우를 평가할 수 있는 방법을 제안하였으며, 서울을 비롯한 6개 주요 기상관측소 지점을 대상으로 적용성을 평가하였다. 우선, 과거 관측자료를 이용하여 스케일 특성을 이용한 확률강우량 산정기법의 적용성을 평가하였으며, 평가 결과 빈도분석과 스케일특성으로 산정된 확률강우량의 절대상대오차가 10% 내외의 범위를 보였다. 또한 기준기간의 기후시나리오를 이용하여 적용성 평가를 수행한 결과 100년 빈도이내에서 20% 내의 절대상대오차를 보였다. 평가 결과를 통해 본 연구에서 적용한 스케일 특성 기법은 미래 확률강우량 산정 시 신뢰성 있는 결과를 도출할 수 있을 것으로 판단된다. The objectives of this study are to suggest the method for estimation of sub-daily extreme rainfall under climate change using scale properties and to assess the application in the 6 major weather stations including Seoul site. First, the proposed method was assessed by past observations. As the results, absolute relative errors of probability rainfall quantiles estimated by frequency analysis and scale property method show approximately 10% in the all durations. And as the result of application climate scenario, absolute relative errors of rainfall quantiles between two method show approximately 20%. From the results, the scale property method on this study will be derive as the reliable results.
이문환,황재윤,Lee, Moon Hwan,Hwang, Jae Youn 한국음향학회 2021 韓國音響學會誌 Vol.40 No.2
Recently, an ultrasound hologram and its applications have gained attention in the ultrasound research field. However, the determination technique of transmit signal phases, which generate a hologram, has not been significantly advanced from the previous algorithms which are time-consuming iterative methods. Thus, we applied the deep learning technique, which has been previously adopted to generate an optical hologram, to generate an ultrasound hologram. We further examined the Deep learning-based Holographic Ultrasound Generation algorithm (Deep-HUG). We implement the U-Net-based algorithm and examine its generalizability by training on a dataset, which consists of randomly distributed disks, and testing on the alphabets (A-Z). Furthermore, we compare the Deep-HUG with the previous algorithm in terms of computation time, accuracy, and uniformity. It was found that the accuracy and uniformity of the Deep-HUG are somewhat lower than those of the previous algorithm whereas the computation time is 190 times faster than that of the previous algorithm, demonstrating that Deep-HUG has potential as a useful technique to rapidly generate an ultrasound hologram for various applications.
이문환,Lee, Mun-Hwan 대한물리치료학회 2003 대한물리치료학회지 Vol.15 No.2
This case study was performed to assess the effectiveness of taping therapy for the patient who have patellofemoral joint pain during knee extension exercise. The results were as follows: 1. Pain degree of VAS was decreased at every taping therapy. 2. A number of knee extension was increased at every taping therapy. 3. Diameter of quadriceps was increased at every taping therapy. 4. Pattern of gait was normalized at every taping therapy. We found improve of pain degree, a number of knee extension, diameter of quadriceps, and pattern of gait. These results are imply that taping therapy may have effectiveness to those who have patellofemoral joint pain during knee extension exercise.