이경수 소장의 희망칼럼 - 핵융합, 녹색성장의 해답

이경수,Lee, Gyeong-Su 국가핵융합연구소 2009 핵융합뉴스레터 Vol.41 No.-

세계적으로 부는 녹색 붐. 선진국들은 기후변화 대응과 경기회복을 동시에 꾀하기 위한 다양한 그린정책을 내놓고 있고 우리 정부도 저탄소 녹색성장이라는 타이틀로 참여하고 있다. 정부가 핵융합기술을 녹색기술에 포함시킨 현 상황에서 국가핵융합연구소가 해야 할 일은 무엇인지 이경수 소장의 이야기를 들어보았다.

세미나 - 레토르트 패키지 디자인 연구 - 삼계탕과 육개장을 중심으로 -

이경수,Lee, Gyeong-Su (사)한국포장협회 2016 包裝界 Vol.273 No.-

본 원고는 한국상품문화디자인학회 제40호 논문에 게재된 내용으로, 학회와 이경수 대표의 동의 아래 게재함을 밝힌다.

세미나 - 유니버설 디자인 적용을 위한 생활용품 패키지디자인 연구 - 샴푸, 바디워시를 중심으로 -

이경수,Lee, Gyeong-Su (사)한국포장협회 2015 包裝界 Vol.271 No.-

본 원고는 한국상품문화디자인학회 제41호 논문에 게재된 내용으로, 학회와 이경수 대표의 동의 아래 게재함을 밝힌다.

가토폐의 Paraquat 중독 : 고해상 전산화단층촬영 소견과 병리소견과의 비교 연구

이경수 대한영상의학회 1992 대한영상의학회지 Vol.28 No.6

The authors evaluated high resolution computed tomographic (HRCT) findings of the isolated rabbit lungs with paraquat poisoning, and the findings were correlated with pathologic specimens. The purposes of this study are 1) to obtain the HRCT findings of the normal rabbit lung, 2) to find out if pulmonary pathology can be induced in rabbits by paraquat, and 3) to correlate the HRCT findings to those of pathology. Thirty rabbits were divided into three groups : group Iincluded four control rabbits; roup II included 16 rabbits given paraquat intraperitoneally (IP group); and group III included 10 rabbits given paraquat intravenously (IV group). The rabbits were sacrificed seven, 10 and 14 days after injection of various amount of paraquat, and then lungs were isolated for HRCT and pathologic studies. Gross and microscopic findings of the three groups of control and paraquat-injected rabbit lungs were correlated with HRCT findings. Pulmonary congestion, mild thickening of alveolar walls and septae, and multifocal micro-atelectasis were the main pathologic findings of the lungs in both groups of the rabbits. Pulmonary hemorrhage was noted in five (31%) of 16 rabbits of IP group and three (30%) of 10 IV group. Pulmonary edema was seen in one rabbit (6%) and IV (10%) group, respectively. There was no correlation between the amount of paraquat and frequency of the pulmonary pathology. Pulmonary fibrosis was seen at least one week after the paraquat injection. On HRCT, pulmonary hemorrhage and edema appeared as diffuse air-space consolidation and pulmonary fibrosis as linear or band-like opacities. However, minimal changes such as mild congestion, thickening of alveolar wall, and focal atelectasis were not clearly seen on HRCT. It is concluded that mild pulmonary congestion, mild thickening of alveolar walls and septae, and multifocal micro-atelectasis are the main pathologic features, while pulmonary hemorrhage and fibrosis are associated in the limited number of he paraquat lungs of the rabbits. The pathologic findings as well as the normal anatomy of the rabbit lung can be demonstrated on HRCT.

Bleomycin 국소주사에 대한 Guinea pig 피부의 반응에 관한 연구

이경수,깁중환 대한피부과학회 1979 大韓皮膚科學會誌 Vol.17 No.5

Bleoxycin is known to have good therapeutic effect on verrucae, which has been used for varioua malignant turnors for its antimitatic effect RecentIy Kim & Kim, reported an exceIIent treatment method. of verrucae with Bleomycin using needle free dermojet. They poetulated that the excellent effcts were achievei thraugh infiltration of the ekin, in.cluding the affected epidermis, with Bleomycin which is not possible with other rnethods, It is therefore interesting to know the effects of Dermajet instilled Bleomycin an normal ekin. We selected guinea pigs for thia experirnent. Five albino guixim pigs, weighting about 500 Gm, were ueed. Bleomycin water ohxtion, 0.25mg/ml, 0.06ml for each chet was injected utilizing Dermojet on the back of a guinea pig after clipping. The injected sites and the contralateral sites were tiopsied a,fter vaxying length of time and histologia examinationa were made. The experiment was eoarranged that the biopsies for different experiment aitea celd be done on oxeittirnig. Six hours after the bleomycin injection, the epidermis becase shrunk and t@4e upper dermie showed aligbt inflammatory infiltration. After 10 hours. and also after 24 hours, a superficial ulceration and necrosis were noted and the dermal infiltration became progressively severer. After 2 days epithelization, had started and. the necrotic debris began to drop off. After 4 daya the epithelization was camplete. These findings were in sorne part similar to the findings observed in humans by Kirn and Kim in the treatment af verruca but th time sequenc was far faster in guinea pigs.

폐 림파계평활근증식증 : 증례보고

이경수 대한영상의학회 1991 대한영상의학회지 Vol.27 No.2

We reviewed the radiologic, physiologic, and pathologic features of biopsy-proved pulmonary 1ymphangioeiomyomatosis(LAM) in 2 patients. Chest radiogra;hs showed diffuse increased interstitial lung markings with normal or slightly increased lung volume. The prominent computed tomographic(CT) feature was thin walled cysts throughout the lungs. Pulmonary function test showed a mixed obstructive and restrictive pattern in one and a mainly restrictive pattern in another, which was somewhat different from that of the reported cases. Proliferation of smooth muscle cells in the 1ymphatics, alveolar septae, vessels, and bronchioles wasthe pathologic finding.

정맥혈관종 및 유출정맥 폐쇄를 동반한 심재성 동정맥기형의 공존

이경수 대한영상의학회 1988 대한영상의학회지 Vol.24 No.4

심재성 동정맥기형이 유출정맥의 폐쇄와 함께 나타날 수 있다는 문헌보고는 종종발 견된다. 그러나 정맥혈관종이 이러한 유출정맥 폐쇄를 동반한 심재성 동졍맥기형과 함께 공 존한 뇌혈관 기형은 찾을 수 없었다. 최근 저자들은 2예의 상기 질환을 경험하였기에 특히 유출정맥 폐쇄에 주안점을 두어 증례보고하는 바이다.

신증후성출혈열의 단순흉부촬영소견

이경수 대한영상의학회 1988 대한영상의학회지 Vol.24 No.4

106명의 신증후성출혈열 환자의 단순흉부촬영 소견을 부선한 결과 6예의 폐부종, 3 예의 폐율혈, 3예의 늑막삼출, 1예의 심비대 및 1예의 피하기종을 관찰할 수 있었다. 폐부종 과 폐울혈은 핍뇨기 및 이뇨기에서 나타났고 특히 핍녀기가 일주일 이상 지속되는 경우 잘 관찰될 수 있었다. 늑막삼출과 심비대도 역시 핍뇨기 및 이뇨기에서 보였고 1예의 피하기종 은 이뇨기에 나타났다. BUN 및 creatinine처, 심전도 소견과 혈소판 수치는 위에서 언급한 흉부소견과 상관관계를 보이지 않았다. 다만 폐부종의 유형 핍뇨기의 지속또한 흉부촬영 소 견이 누출된 혈장이 돌아오는 핍뇨기에 많다는 소견 등은 수액과닥 흉부소견에 중용한 영향 을 미친다고 사료된다. Simple chest films of 106 cases of hemorrhagic fever with renal syndrome (HFRS) were reviewed retrospectively with clinical sequences. Renal type of Pulmonary edema (n=6), pulmonary congestion (n=3), pleural effusion (n=3), cardiomegaly (n=1) and subcutaneous emphysema (n=1) were the findings of thoracic manifestation of HFRS in order of frequency. Pulmonary edema and congestion were noted in oliguric and diuretic phases and noticeably seen when the oliguric phase was prolonged for more than 7 days (average oliguric phase, 3.3 days). Pleural effusion and cardiomegaly were also noted in oliguric and diuretic phases. Subcutaneous emphysema appeared in the diuretic phase. BUN/Cr level, EKG finding and platelet count didn't contribute to the thoracic findings. The type of pulmonary edema, in conjunction with the prolongation of the duration of oliguria and phase of revelation of thoracic findings suggest that fluid over load playa significant role in thoracic manifestation of HFRS .

전산화단층촬영을 이용한 방광암의 병기 결정

이경수 대한영상의학회 1985 대한영상의학회지 Vol.21 No.1

Staging of carcinoma of the urinary bladder is important for the choice of therapy and also has prognostic implications. Hitherto the staging has been based upon cystoscopy with biopsy, transurethral resection, and palpation with complementary radiographic examinations such as cystography, urography, lymphangiography, ultrasound and anglography. However, with all these methods, the staging of bladder carcinomas still uncertain and inferior to CT. Authors analyzed CT staging of bladder cancers and compared with pathologic staging of laparotomy results. The results are as follows: 1. Overall accuracy of CT staging in bladder carcinoma was 72 percent. 2. Overstaging was 20 percent (5/25) and understaging was 8 percent (2/25). 3. All of CT stage B cancers were proven to be stage B, pathologically. 4. In 6 cases of CT stagec cancers, only one was correct, 3 were overstaged and 2 were understaged. 5. In 7 cases of CT stage D cancers, 5 were correct and 2 were overstaged. 6. CT detec ed only 2 cases of pelvic lympy node involvement in 4 of pathologically proven lymphadenopathy.

종격동 종양의 전산화단층촬영 소견

이경수 대한영상의학회 1985 대한영상의학회지 Vol.21 No.3

Computerized Tomography can make accurate diagnosis in most of the mediastinal tumors and cysts by assessing their location, shape and internal architecture. Authors analysed and present CT findings of 89 surgically proven mediastinal tumpors and cysts that were studied and treated in Seoul National University Hospital during recent 5 years. The results are as follow: 1. The most common tumor was teratoma (25 cases). Neurogenic tumor (20 cases), thymic tumor or cyst (16 cases), lymphoma (7 cases), bronchogenic cyst (6 cases), intrathoracic goiter (6 cases), pericardial cyst (3 cases) and cystic hygroma (2 cases) were next in order of frequency. 2. The most constant findings of treatoma was thick walled cystic area (100%), while pathognomonic fat and calcified density were located I anterior mediastinum, 2 cases were in posterior mediastinum and a case is in middle mediastinum. 3. There were 20 cases of neurogenic tumor consiting of 6 neurilemmomas, 7 ganglioneuromas, 4 neurofi romas, 1 ganglioneuroblastoma, 1 neuroblastoma and 1 malignant schwannoma. Most of them were located in posterior mediastinum with exception of 2 neurilemmomas arising from left vagus nerve and left recurrent laryngeal nerve in middle mediastinum. Cystic change was seen in 2 cases of neurilemmoma and in a case of ganglioneuroma. Calcification was seen in 3 cases, of neuroblastoma, a neurilemmoma, and a ganglioneuroma. 4. There were 11 cases of thymoma showing homogeneous solid mass with speckeld calcification in 4 cases and irregular cystic change in 3 cases. 2 cases were invasive thymoma and myasthenia gravis was present in 4 cases. A case of thymolipoma and a case of thymic cyst were included. 5. Lymphoma(2 Hodgkin's and 4 non-Hodgkin's) appeared as lobulated, matted mass in anterior mediastinum especially in prevascular area expanding bilaterally. 6. Intrathoracic goiter appeared as slightly high density mass with intermingled calcification and cystic area in 5 cases of secondary oiter and homogeneous high density mass (100-110 H.U. in precountrast scan) in a case of primary goiter. 7. Among the 6 bronchogenic cysts, 3 were located in subcarinal area, 2 were above carina and one was in left hilar area. 3 cases showed high CT number more than 70 H.U. and others showed water density. 8. 3 cases of pericardial cyst were located in right cardiophrenic angle and all of them showed water density. 9. 2 cases of cystic hygroma were located in superior mediastinum, with extension to lower neck and all of them showed water density.