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유방암 방사선치료시 조직등가보상체와의 비교를 통한 Brass mesh bolus의 유용성 평가
봉주연,김경태,전미진,하진숙,신동봉,김세준,김종대,Bong, Juyeon,Kim, Kyungtae,jeon, Mijin,Ha, Jinsook,Shin, Dongbong,Kim, Seijoon,Kim, Jongdae 대한방사선치료학회 2017 대한방사선치료학회지 Vol.29 No.1
목 적: 유방암 방사선 치료에서 조직등가보상체의 단점을 해결하기 위해 황동그물망보상체(Brass mesh bolus)가 최근 연구되고 있다. 본 연구의 목적은 국내에 처음 소개되는 황동그물망보상체의 안정성을 조사하고, 표면선량을 평가하고자 하였다. 대상 및 방법: 조직등가보상체 5 mm와 가장 비슷한 황동그물망보상의 두께를 확인하기 위해 표면선량을 측정하였다. 6 MV 선형가속기와 광자극형광선량계(optically stimulated luminescent dosimeter, OSLD)를 사용하였다. 흉곽팬텀을 이용한 2문 대항접선조사를 황동그물망보상체와 조직등가보상체의 비교를 통하여 연구에 적용하였다. 결 과: 표면선량 측정을 기반으로 조직등가보상체 5 mm와 가장 유사한 두께는 황동그물망보상체를 두 겹에 해당되는 3 mm였고, 평균 상대오차율은 0.38 %였다. 흉곽팬텀을 사용한 황동그물망보상체의 표면선량은 조직등가보상체에 비해 약 1.069배 증가하였다. 결 론: 본 실험에서 황동그물망보상체는 기존 조직등가보상체 선량균등도가 향상된 것으로 확인되었다. 실험을 바탕으로 황동그물망보상체가 기본 조직등가보상체를 대체 가능 할 것으로 사료된다. 하지만 다양한 임상적 평가가 필요할 것으로 사료된다. Purpose: In breast cancer radiotherapy, brass mesh bolus has been recently studied to overcome disadvantage of conventional bolus. The purpose of this study is to investigate the stability of first introduced the brass mesh in the country, and evaluate the skin surface dose of that. Materials and Methods: The measurement of skin surface dose was evaluated to verify similar thickness of the Brass mesh bolus that compared conformal tissue equivalent bolus with 5 mm thickness. We used 6 MV photons on an ELEKTA VERSA linear accelerator and optically stimulated luminescent dosimeter (OSLD). In addition, two opposed beam using IMRT phantom was applied to comparative study of brass mesh bolus between tissue equivalent bolus. Results: The results showed that similar thickness of the Brass mesh bolus was 3 mm compared with 5 mm tissue equivalent bolus by measuring the skin surface dose of solid phantom. The surface dose for IMRT thorax phantom using 3 mm brass mesh bolus was about 1.069 times greater than that using tissue equivalent bolus. Conclusion: In this study, we found that the brass mesh bolus improved better reduction of skin sparing effect and dose uniformity than tissue equivalent bolus. However evaluation for various clinic cases should be investigated.
이승봉,서지은,최주연,최경규 한국APEC학회 2019 Journal of APEC Studies Vol.11 No.2
The application scope of this paper extends to state analysis and target model establishment. This paper conducts state analysis on legal system through law-policy review and requirements investigation. The policy that corresponds with Cambodia's national spatial information infrastructure (NSII) is the National Spatial Data Infrastructure (NSDI) Masterplan established in 2012 but has not been implemented since. The key requirements related to spatial information laws and policies of ministries and public officials are the establishment and implementation of the NSII legal system for sharing and utilizing spatial information. The most significant difference between Cambodia and South Korea's NSII policy is the existence of planning periods and whether the plan has been implemented or not, and whether the basis for policymaking and implementation is legally guaranteed. Compared to Korea, the legal system related to the establishment of spatial information infrastructure or production/sharing/utilization of spatial information is absent in Cambodia. Therefore, the first target model of the legal system is ‘establishing a legal framework on NSII.’ The second target model of the legal system is ‘enacting the NSII Act.’
옥트레오타이드를 이용한 유육종증과 동반된 유미흉의 보존적 치료
정경수 ( Kyung Soo Jung ),문지애 ( Ji Ae Moon ),윤설희 ( Sul Hee Yoon ),변민광 ( Min Kwang Byun ),정우영 ( Woo Young Jung ),정재희 ( Jae Hee Jung ),최상봉 ( Sang Bong Choi ),김대준 ( Dae Joon Kim ),표주연 ( Ju Yeon Pyo ),김영삼 ( 대한결핵 및 호흡기학회 2007 Tuberculosis and Respiratory Diseases Vol.62 No.2
Sarcoidosis is a multi-system granulomatous disorder of an unknown etiology and affects individuals worldwide. It is characterized pathologically by the presence of non-caseating granulomas in more than one involved organ. However, pleural involvement of sarcoidosis is rare and there are no reported cases in Korea. Traditionally, sarcoidosis has often been treated with systemic corticosteroids or cytotoxic agents. In particular, chylothorax with sarcoidosis is usually treated with corticosteroid for approximately 3~6 months, followed by repeated therapeutic thoracentesis, talc pleurodesis, dietary treatment, or thoracic duct ligation where needed. We encountered a 46 years old female patient presenting with cough, dyspnea and both hilar lymphadenopathy (stage I) on chest radiograph. The patient was diagnosed with a non-caseating granuloma, sarcoidosis by a mediastinoscopic biopsy. For one month, she had suffered from dyspnea due to right side pleural effusion, which was clearly identified as a chylothorax on thoracentesis. Corticosteroid therapy with dietary adjustment was ineffective. She was treated successfully with a subcutaneous injection of octreotide for 3 weeks and oral corticosteroid. We report a case of successful and rapid treatment of chylothorax associated with sarcoidosis using octreotide and oral corticosteroid. (Tuberc Respir Dis 2007; 62: 119-124)