• 대한한방내과학회지
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• 제37권4호
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• pp.678-684
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• 2016

Objectives: This clinical study describes the effect of Korean medicine on a patient with alcohol-related dementia.Methods: A patient with cognitive disorder and memory impairment due to alcohol abuse was treated with the herbal medicine “Gami Gwibi-tang”, acupuncture, and moxibustion, together with basic Western medicine. The patient’s cognitive function was evaluated by the Mini-Mental State Examination-Korean (MMSE-K) and Clinical Dementia Rating (CDR). Brain Magnetic Resonance Imaging (MRI) was used to estimate the severity of structural brain damage.Results: Following treatment with Gami Gwibi-tang, patent’s MMSE-K score and CDR improved.Conclusion: This clinical case study provides evidence of the effect of Korean medicine, including Gwibi-tang-gami, on alcohol-related dementia.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제2권2호
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• pp.262-266
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• 1999

Obstruction of the extrahepatic bile ducts is the most common cause of conjugated hyperbilirubinemia in early infancy. More than 90% of such obstructive lesions are accounted for by extrahepatic biliary atresia. A rare lesion is obstruction of the common duct by impacted, thickened secretions and bile. Bile plug syndrome is defined as extrahepatic obstruction of the bile ducts by bile sludge in term infants without anatomic abnormalities, congenital chemical defects of bile, or hepatocellular lesions. Obstruction of extrahepatic ducts by plugs of biliary material apperas to be due to the inspissation and precipitation of bile and mucus within the lumen of the ducts. Cholestasis and precipitation of bile develop in association with abnormal composition of bile in cystic fibrosis, hepatocellular damage, prolonged erythroblastic jaundice, altered biliary dynamics with total parenteral nutrition, gut dysfunction, diuretic therapy, exchange transfusions and perinatal hemolysis. In those cases, the term inspissated bile syndrome is used. The clinical and laboratory findings in bile plug syndrome are identical to those observed in biliary atresia and choledochal cyst. The diagnosis can be suspected based on the findings of clinical and laboratory examinations together with hepatobiliary imaging, ultrasonography, radionuclide scan and liver biopsy. We experienced a case of spontaneous resolution of bile plug syndrome in a 4-year-old girl. We report this case with brief review related literatures.

• 비파괴검사학회지
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• 제30권2호
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• pp.121-125
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• 2010

회전기기의 결함진단에 있어서 기존의 방법과 달리 적외선열화상기술은 회전기기의 결함진단에 대해 비접촉, 비파괴 및 상태감시 모니터링을 할 수 있다. 본 논문에서는 적외선열화상 상태진단을 기반으로 하는 회전기기의 결함진단에 대한 새로운 접근법을 제안한다. 따라서 회전기에서 가장 많이 사용되어지는 볼베어링을 이용하여 실험을 수행하였고, 진동 스펙트럼 분석과 적외선열화상을 이용하여 실시간 모니터링을 수행하였다. 적외선열화상기법을 이용하여 볼베어링의 윤활 불균형에 따른 온도 특성을 확인할 수 있었다. 이러한 실험을 통한 결과를 분석 검토하여 향후 산업전반의 회전기기의 상태감시연구에 있어서 다양한 분야에 사용되어 질 것으로 예상된다.

• Journal of Veterinary Science
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• 제22권2호
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• pp.22.1-22.9
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• 2021

Background: Standing surgery in horses combining intravenous sedatives, analgesics and local anaesthesia is becoming more popular. Ultrasound guided (USG) peribulbar nerve block (PB) has been described in dogs and humans for facial and ocular surgery, reducing the risk of complications versus retrobulbar nerve block (RB). Objective: To describe a technique for USG PB in horse cadavers. Methods: Landmarks and PB technique were described in two equine cadaver heads (Phase 1), with computed tomography (CT) imaging confirming contrast location and spread. In Phase 2, ten equine cadaver heads were randomised to two operators naive to the USG PB, with moderate experience with ultrasonography and conventional "blind" RB. Both techniques were demonstrated once. Subsequently, operators performed five USG PB and five RB each, unassisted. Contrast location and spread were evaluated by CT. Injection site success was defined for USG PB as extraconal contrast, and for RB intraconal contrast. Results: Success was 10/10 for USG PB and 0/10 for RB (p < 0.001). Of the RB injections, eight resulted in extraconal contrast and two in the masseter muscle (p = 0.47). Conclusions: The USG PB had a high injection site success rate compared with the RB technique; however, we cannot comment on clinical effect. The USG technique was easily learnt, and no potential complications were seen. The USG PB nerve block could have a wide application for use in horses for ocular surgeries (enucleations, eyelid, corneal, cataract surgeries, and ocular analgesia) due to reduced risk of iatrogenic damage. Further clinical studies are needed.

• 한국정보통신학회논문지
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• 제23권12호
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• pp.1535-1541
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• 2019

방사선 사고 지역 및 제염이 필요한 지역에서의 안전하고 신속한 제염작업을 진행하기 위해서는 방사선 오염원에 대한 다양한 정보 획득이 필요하다. 특히 방사선원의 정확한 위치와 분포 정보의 파악은 신속한 후속 조치 및 오염원 제거를 위해 반드시 필요하며, 작업자의 방사선 피폭을 최소화할 수 있다. 방사선원의 위치와 분포 정보를 획득하기 위해서는 방사선 분포 탐지 장치를 사용한다. 방사선 분포 탐지 장치의 경우 일반적으로 탐지 센서 부가 단일 센서로 구성되며, 단일 센서의 물리적 한계로 인해 탐지 범위가 제한되는 문제점이 있다. 본 논문에서는 방사선 오염 분포 영상화 장치에 사용되는 단일 센서의 탐지 감도 제어를 위하여 보정 검출기를 적용하였으며, 이를 통해 제한적이었던 선량률 탐지 범위를 향상하였다. 또한 감마선 조사 시험을 통해 방사선 분포 탐지 범위의 개선을 확인하였다.

• 척추신경추나의학회지
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• 제16권2호
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• pp.47-54
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• 2021

Objectives This review was conducted to study use of Aconitum herbal medicine for pain control in musculoskeletal disease. Methods Musculoskeletal disease is a major factor of social cost increase and physical disability. Various drugs, surgery and imaging are being overused regardlessly. Aconitum herbal plants are one of the most toxic Korean traditional herbs. However, they could be utilized effectively on patients with appropriate processing and decocting time. We searched Korean medicine literature to see various features of aconitum herbal plants and tried to find the utilization of the plants in effective way for pain control in musculoskeletal disease. Results Aconitum herbal plants needs to be used carefully because of intoxication which could lead to severe damage to human body. Processing of these toxic plants could minimize the harm and raise the benefits, such as relieving various types of pain and positive inotropic action. Further studies with clearer evidence and discovering aftereffects of processing in more details are needed. Conclusions Aconitum herbal plants could dedicate to controlling pain in musculoskeletal disease with various forms and appropriate processing.

• 대한두개안면성형외과학회지
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• 제23권3호
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• pp.103-110
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• 2022

Background: The primary objectives of mandibular surgery are to achieve optimal occlusion, low sensory disturbance, and adequate fixation with early movement. In-depth knowledge of the mandibular structure is required to achieve these goals. This study used computed tomography (CT) to evaluate the mandibular cortical thickness and cancellous space according to age and sex. Methods: We enrolled 230 consecutive patients, aged 20 to 50 years, who underwent CT scanning. The cortex and cancellous space centered around the inferior alveolar nerve (IAN) canal were measured at two specific locations: the lingula and second molar region. Statistical analysis of differences according to increasing age and sex was performed. Results: The t-test revealed that the cancellous space and cortical thickness differed significantly with respect to the threshold of 35 years of age. Both cortical thickness and cancellous space in the molar region were negatively correlated with age. Meanwhile, both cortical thickness and cancellous space in the lingula region showed a positive correlation with age. With respect to sex, significant differences in the cancellous space at the molar region and the cortical thickness at the lingula were observed. However, no further statistically significant differences were observed in other variables with respect to sex. The sum of each measurement on the mandibular body reflected the safe distance from the surface of the outer cortex to the IAN canal. The safe distances also showed statistically significant differences between those above and below 35 years of age. Conclusion: Knowledge of the anatomical structure of the mandible and of changes in bone structure is crucial to ensure optimal surgical outcomes and avoid damage to the IAN. CT examination is useful to identify changes in the bone structure, and these should be taken into account in the planning of surgery for older patients.

• 한국건설순환자원학회논문집
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• 제10권4호
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• pp.593-599
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• 2022

본 연구에서는 콘크리트 구조물의 주요 손상인 균열에 대한 효과적인 점검을 위하여 이미지 처리 기법을 이용한 균열 검출이 가능한 균열 모니터링 자동화 시스템 개발의 일환으로 머신비전을 이용하여 균열 촬영 장비를 제작하고 균열 이미지 촬영 및 분석이 가능한 프로그램을 개발하였다. 본 시스템은 기존의 육안으로 균열을 점검하는 외관조사를 대체하여 객관적이고 정량적인 데이터를 제공한다. 개발 시스템의 검증은 자기치유 콘크리트 수조 시공 현장에 적용하여 균열 검출 및 재령에 따른 균열폭의 변화량을 모니터링하였다. 이미지 분석을 통해 검출된 균열폭의 경우 디지털 현미경을 이용한 실측값과 차이가 최대 0.036 mm로 나타났으며, 자기치유 콘크리트의 재령 경과에 따른 균열 치유 효과를 균열폭 감소를 통해 확인할 수 있었다.

• 대한두경부종양학회지
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• 제38권2호
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• pp.29-32
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• 2022

Lipoma is one of the most common benign soft tissue tumors. However, giant lipomas compressing and deforming the neurovascular structure rarely occur in the lateral neck. A 70-year-old man visited our outpatient clinic for treatment of a visible painless neck mass that had been identified 2 years prior. Neck magnetic resonance imaging revealed that a 10 × 9 × 4 cm fatty mass located between the sternocleidomastoid and sternohyoid muscles invaded the carotid sheath. Under general anesthesia, the mass was excised without damage to the adjacent neurovascular structures. Upon histopathological examination, the mass was identified as a lipoma. During the surgery, enlargement of the internal jugular vein was observed under the resected mass. However, on ultrasound examination, the function of the internal jugular vein was evaluated as good. No recurrence or neurological and vascular complications were reported during a 6-month follow-up after the surgery. As a giant lipoma located in the deep layer of the lateral neck can deform important cervical structures, its impact on the surrounding structures should be carefully assessed preoperatively to minimize the rate of possible complications.

• Smart Structures and Systems
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• 제29권2호
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• pp.301-309
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• 2022

Protective coatings are most widely used anticorrosive structures for steel structures. The corrosion under the coating damages the host material, but this damage is completely hidden. Therefore, a field-applicable under-coating-corrosion visualization method has been desired for a long time. Laser ultrasonic technology has been studied in various fields as an in situ nondestructive inspection method. In this study, a comparative analysis was carried out between a guided-wave ultrasonic propagation imager (UPI) and pulse-echo UPI, which have the potential to be used in the field of under-coating-corrosion management. Both guided-wave UPI and pulse-echo UPI were able to successfully visualize the corrosion. Regarding the field application, the guided-wave UPI performing Q-switch laser scanning and piezoelectric sensing by magnetic attachment exhibited advantages owing to the larger distance and incident angle in the laser measurement than those of the pulse-echo UPI. Regarding the corrosion visualization methods, the combination of adjacent wave subtraction and variable time window amplitude mapping (VTWAM) provided acceptable results for the guided-wave UPI, while VTWAM was sufficient for the pule-echo UPI. In addition, the capability of multiple sensing in a single channel of the guided-wave UPI could improve the field applicability as well as the relatively smaller size of the system. Thus, we propose a guided-wave UPI as a tool for under-coating-corrosion management.