僧帽辦膜狹窄症의 血力學的 평가와 右心機能에 관한 硏究

柳秀雄,姜明進 최신의학사 1981 最新醫學 Vol.24 No.1

혼합 방사선장에서 개개의 방사선을 구별하기 위한 MgB_(4)O_(7)(Mn) TLD의 응용

유명진 고신대학교 의학부 1993 高神大學校 醫學部 論文集 Vol.9 No.2

The thermoluminescence of MgB₄O_(7)(Mn) TLD to different types of radiation with various energies have been investigated. Experimental results indicated that the glow curve and its peak height ratios for MgB₄O_(7)(Mn) are clearly correlated with the type of radiation field and can therefore be used for the identification of a particular radiation component. Types of radiation that have been studied in this work include fast electron, X and gamma rays.

정상체중성인과 과체중성인의 거골-제1종족골 및 종골하면-제1종족골하면 관절간 각도 차이에 대한 연구

유문집,김명호,유석주,이성철,박진영 단국대학교 1997 論文集 Vol.31 No.-

Normal feet have the longitudinal arch for the distribution of the weight. The longitudinal arch is known lateral and medial longitudinal arch. Collapsed arch of the foot is flat foot and it is the cause of the foot pain. Of course the low arch does not always make a foot problem in sports and daily activity. Longitudial foot arch is visible in the standing foot lateral radiograph, Harris mat and visual observation. In Radiographic study the lateral Talo-lst Metatarsal angle is known in standing foot lateral film. But the longitadinal medial arch is not correctly obtained in Talo-lst Metatarsal angle. So this study for Calcaneo-lst metatarsal angle in standing lateral foot radiograph is more valuable angle in medial longitadinl arch. And we do the study on difference in the longitadinal arch in normal weight versus overweight person.

전기화상 환자에 대한 임상적 고찰

유병대,김성진,이명갑,서영조,강재구,이동필 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4

Background: Good documentation of electrical injuries at the time of presentation is very important to emergency management, so this study was designed to investigate the clinical characteristics and the outcomes of patients with electrical injury. Methods: A review of 75 cases of electrical injuries admitted to our hospital via the emergency department over a 4 year period from 1996 to 1999 was conducted. Results: There were 49 patients with high-voltage injuries and 19 patients with low-voltage injuries. All but 4 patients were males, with a mean age of 29.5 years. The most common type of injury was electrothermal burn. The most common point of entry was hand. The average size of burn wounds was 14.5% TBSA in the high-voltage group and 2.5% in the low-voltage group. Forty-nine(72.1%) of the injuries were work related. The number of patients with compartment syndrome was 19, and fasciotomies were performed in all but one patient. Myoglobinuria was noted in 22 patients, but no patient developed acute renal failure due to myoglobinuria. In the high-voltage group, 10 limb amputations were performed. Complication were observed in 12 patients. The most common complication was neurological injury. The average length of hospital stay was 50.7 days in the high-voltage group and 13.8 days in the low-voltage group. The overall mortality rate was 4.3%. Couclusion: Prevention of electrical injuries is very important. Education and compliance with safety measures, as well as basic knowledge and precaution in dealing with electricity, are essential to avoid these injuries.

r=TiAl 일방향응고재의 집합조직 특성 평가

유원형,김인수,박노진,오명훈 金烏工科大學校 1998 論文集 Vol.19 No.-

The lamellar boundary orientations of directionally solidified(DS) ?? alloys were evaluated by the X-ray diffraction method. Some ternary and quarternary DS ingots were grown by the arc melted unidirectional solidification equipment without seed materials. Pole figure measurments were performed using above DS ingots and then inverse pole figures were calculated in order to analyze the aligned lamellar boundary directionions. It was found that the measured lamelae boundary orientations were between ø= 0˚ ∼ 55˚, and these results were coincident with the expected values, ø= 0˚ ∼ 45˚, Therefore, it could be suggested that the texture measurement was a beneficial method to analyze the lamellar boundary orientations of ?? DS ingots

척추 수술시 자가혈액 수혈기를 이용한 자가수혈의 효과

김명호,유문집,유석주,박진영,정홍근,박희곤,문기혁 단국대학교 2000 論文集 Vol.35 No.-

Study Design : Spine fusion with fixation procedure is associated with substantial operative blood loss, which frequently necessitates transfusion. The authors evaluated the safety and efficacy of intraoperative autotransfusion using Cell Saver during spinal surgery. Summary of Literature Review : It has been reported that the contraindications to the use of intraoperative autologous transfusion are malignancy, infection, and gross wound contamination. Objectives : The purpose of this study was to evaluate the safety and efficacy of intraoperative autotransfusion using Cell Saver during spine surgery. Material and Methods : We retrospectively reviewed 62 patients who had operation for lumbosacral spinal stenosis and hypotensive anesthesia. Among them, Group Ⅰwhich received autotrans fusion using Cell Savers included 26 patients with fusion of 2 segments, and Group Ⅱ as control group included 13 patients. Group Ⅲ which received autotransfusion using Cell Savers included 17 patients with function of 3 segments, and Group Ⅳ as control group included 6 patients. We analyzed the amount of intraoperative blood salvage using a Cell Saver, the amount of total homologous transfusion amount, intraoperative blood loss, the amount of postoperative drainage amount and perioperative changes of hemoglobin, hematocrit and platelet count. Results : There was no statistical significance between Cell-Saver group and control group in amount of total homologous transfusion and intraoperative(except in 2 segment of fusion using cell saver: 86.5% increased) & postoperative blood loss(p>0.05). The circulatory balance(amount of intraoperative blood salvage using a Cell Saver plus amount of total homologous transfusion minus amount of total blood loss) was statistical significance between Cell-Saver group and Control group. The Cell-Saver group had positive balance and Control group had negative balance. There were no statistical differance in the evolusion of hemoglobin, hematoocrit and platelet count between Cell-Saver group and Control group(p>0.05). There was no transfusion reaction and thromboembolic disease in all group. Conclusion : In retrospective study, Cell Savers was safe and immediate availability in orthopedic surgery such as spinal surgery. It was effective methods for storing a sufficient volume of blood for spine surgery without affecting the patient's postoperative hemodynamic ststes, too. It was possible to operation without intraoperative homologous blood transfusion in 2 or 3 segment fusion. We may need further study.

불소혼합가스를 이용한 polyester membrane의 표면개질

도진선,유인상,김홍곤,전명석 한국공업화학회 2004 응용화학 Vol.8 No.2

정상여성에서 월경주기에 따른 갑상선 부피의 변동에 관한 연구

박진우,박형규,유명희 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Previous studies demonstrated that the thyroid gland volume was altered during the menstrual cycle in normal women, but the mechanism has not been clarified. To investigate the role of thyroid hormone and ovarian steroid hormones in the cyclic alteration of the thyroid volume in normal women, we performed a compound ultrasonogram and measured thyroid volume with the method based on the electronic planimetry of a sequential transverse ultrasound scans of the thyroid and performed serial measurements of thyroid and ovarian steroid hormones in 8 normal women during the cycles and 8 normal men. Thyroid volume in men was greater than that in women (18.6±1.6 ㎤ vs. 11.7±1.2 ㎤, P<0.05), but the ratio of thyroid volume to body weight showed no significant difference. Serial thyroid volume measurements showed no significant changes in men. However, in women, significant increases on day 22 compared with day 1 and 8. Serum T_(3), T_(4) and TSH levels were not changed significantly during the cycle in women. Serum progesterone levels increased on day 22, compared with on day 1, 8 and serum estradiol levels elevated on day 15 and 22, compared with on day 8 (p<0.05). Positive correlation was found between serum progesterone concentration and thyroid volume (r=0.45, p<0.01), while no significant correlation was found between serum estradiol level and thyroid volume. These data suggest that progesterone might play a role in the cyclic alteration of the thyroid volume during the menstrual cycle in women, probably by changing the vascularity of the thyroid.

개의 심낭내 투여한 Quinidine이 삼장 유효불응기에 미치는 영향

한명철,김재형,노태호,김희열,김종진,조은주,진승원,유기동,이만영,채장성,홍순조,최규보 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.4

감마선 조사 육류, 가금류에서 저장전과 후의 조사선량에 따른 DNA fragmentation의 변화

이혜진,김상미,박유경,양재승,강명희 한국식생활문화학회 2004 韓國食生活文化學會誌 Vol.19 No.2

The changes in DNA damage were investigated during storage after irradiation. Beef, pork and chicken were irradiated at 1.0, 3.0 and 5.0 kGy and stored for 6 months at 20℃. The comet assay was applied to the sample muscles at the beginning of irradiation and at the end of storage. Muscles were isolated, sliced, and the suspended cells were embedded in an agarose layer. After lysis of the cells, they were electrophoresed for 2 min. and then stained. DNA fragmentation in tissues caused by irradiition was quantified as tail length and taii moment (tail length x % DNA in tail) by comet image analyzing system. Right after irradiation, the differences in tail length between unirradiated and irradiated muscles were significant(p<0.05) in beef, pork and chicken. With increasing the irradiation doses, statistically significant longer extension of the DNA from the nucleus toward anode was observed. Similarly even 6 months after irradiation, all the irradiated muscles significantly showed longer taii length than the unirradiated controls. The results represented as tail moment showed similar tendency to those of tail length, but the latter parameter was more sensitive than the former. These results indicate that the comet assay could be one of the simple methods of detecting irradiated muscles. Moreover, this method suggest that using comet assay, we were able to detect DNA damage differences even after 6 months after irradiation.