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정수영,노우철,진민선,이승숙,고재수,Chung, Soo-Young,Noh, Wo-Chul,Jin, Min-Sun,Lee, Seung-Sook,Koh, Jae-Soo The Korean Society for Cytopathology 2007 대한세포병리학회지 Vol.18 No.2
Granular cell tumor (GCT) of the breast is a rare clinical entity, and is believed to be of schwannian origin and to follow a benign clinical course. A 50-year-old woman presented with a slowly growing mass in the right breast. Fine needle aspiration cytology revealed a cellular smear containing isolated or clustered cells showing round to oval nuclei with abundant oncocytic granular cytoplasm. Nuclei showed a fine granular chromatin pattern and occasional small single nucleoli. Cell boundaries were poorly defined, and naked nuclei were frequently found, Histologically, the tumor showed features of typical GCT, and immunohistochemical staining findings strongly supported the diagnosis. The present study demonstrates that GCT of the breast can mimic malignant lesions of breast both clinically and radiologically. The recognition of its cytologic features and suspicion of this lesion would undoubtedly aid the correct diagnosis of mammary GCT.
BIM 기반/스마트 BOM의 형상관리에 의한 전 생명주기를 고려한 철도건설사업관리 시스템 및 방법에 관한 고찰
정수영(Su-Young Chung),이종성(Jong-Seong Lee),박수중(soo-Choong Park),이근영(Geun-Young Lee) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
As the prefecture railroad construction accelerates unmanned system's reliability and safety is increasing in demand. Accordingly effective management of construction projects for the PM and SE techniques are being applied with the introduction and use of PMIS computerized systems. Due to the construction of railways from the start of PMIS research planning design procurement to construction and commissioning various expertise is being carefully gathered and by integrating it into the unified budget ideas and processes rational efficient organized and manageable financial plans are developed for the computerized system. However the current PMIS does not take into account the life-cycle. This study is to bring attention to the BIM smart BOM-based configuration management for life-cycle through the consideration for railway construction project management.
무인운전경전철시스템의 효과적 운영을 위한 사업초기단계 SE적용방안
정수영(Su-Young Chung),박수중(Soo-Choong Park),민경세(Kyung-Se Min),전서탁(Seo-Tak Jeon) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
Recently the demand regarding reliability and safety of the railroad are increased as built to Driverless LRT system. Therefore PM and SE technique is applied for efficient management of a construction business. In case of SE(System Engineering) in domestic most foreign companies are doing to lead but we are under effort for the environment that a domestic company can lead. In this study We emphasize to SE importance of pre-business for operation to be effective of Driveless LRT system and propose about activities in the SE at requirements definitions and requirements analysis steps of a highest level. To achieve this We propose SE Application Methods of Pre-Business regarding assistance process of project planning evaluation and control and risk management.
정수영(Su-Young Chung),박수중(Soo-Choong Park),이성권(Seong-Gwon Lee),이승환(Seung-Hwan Lee) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Management innovation as a strategic alternative to create competitive advantages in the global market, is being actively progressed by conglomerates such as Samsung, LG and Toyoda as they cut a brilliant figure in the 21 century by using various innovation methods. However, the domestic railway sectors, in particular urban railway depots have neglected management innovation as they undertake Operation and Management in non-competitive settings of a corporate enterprise. This paper analyzes the critical success factors that have switched the most obsolete depots to a benchmark model for domestic railway depots based on the remodeling businesses undertaken in Gunja rolling stock maintenance office, Korea's first urban railway depot, along with 5S 6sigma program.
가토에서 실험적으로 유발된 겸상 사구체 신염에 관한 Gd-DTPA 조영 증강 후의 역동적 신 자기공명영상
양익,정수영,이열,이경원,원미숙,이일성,이관섭,노정우,전노원,김현태,박문향,Yang, Ik,Chung, Soo-Young,Lee, Yul,Lee, Kyung-Won,Won, Mi-Sook,Lee, Eil-Seoung,Lee, Kwan-Sup,Noh, Jung-Woo,Chun, Roh-Won,Kim, Hyun-Tae,Park, Moon-Hyang 대한영상의학회 1998 대한영상의학회지 Vol.38 No.2
Purpose: The purpose of this study was to evaluate the utility of Gd-DTPA-enhanced dynamic MRI (DMRI) in earlydiagnosis and the assessment of disease processing in experimentally-induced crescentic glomerulonephritis (CGN)in rabbits. Materials and Methods: In six rabbits, CGN was induced by an injection of anti-glomerular basementmembrane Ab. A time-signal intensity curve (TSC) was obtained from DMRI on the day before, and at 1, 4, 7, 15, 45and 113 days after the induction of CGN. Sequential renal biopsies and blood sampling (serum creatinine) wereperformed on the same days, and the results of DMRI and TSC, were compared. Results: In normal kidneys, sequentialDMRI demonstrated the intratubular passage of Gd-DTPA as an inwardly migrating, thin, dark, band pattern. On days1 and 4, the thin dark band appeared but was poorly defined and TSC revealed a delay in peak time. On days 7 and15, movement of the band was seen to be weak and slow, and there was no centripetal migration. The maximal signalintensity of TSC was delayed, and the curves declined very slowly. On days 45 and 113, the dark band pattern wasvery weak and slow, and again there was no centripetal migration. Conclusion: GD-DTPA-enhanced DMRI may be ofvalue in the evaluation of disease processing and the severity of CGN.
양익,정수영,박해정,이열,전노원,노정우,Yang, Ik,Chung, Soo-Young,Park, Hai-Jung,Lee, Yul,Chun, Rho-Won,Noh, Jung-Woo 대한영상의학회 1995 대한영상의학회지 Vol.33 No.5
발작성 야간혈색소뇨증은 매우 드문 용혈성 빈혈로 MR 소견이 보고되기전까지는 특징적인 방사선학적 소견에 대하여 별로 알려져 있지 않았다. 그러나 최근 MR과 CT의 특 징적 소견이 외국 문헌에는 보고된 바 있으나 국내 보고는 없어 MR 및 CT 소견을 보고한 다. 암적색 혈뇨와 만성 빈혈증상으로 반복 수혈후 발작성 야간혈색소뇨증으로 진단된 61세 여자 환자로 복부 MR의 T1, T2 강조영상에서 신피질은 신수질과 비교해 특징적인 저신호 강도를 보였으며 이러한 저신호강도 부위는 조영제를 사용치 않은 CT에서 신피질의 증가된 음영과 일치하였다. 다량 수혈에 의한 혈철증으로 간은 MR에서 저신호강도를 보였고 비장 은 정상이었으며 또한 조영전 CT 상 비장과 비교해 증가된 간 음영을 볼 수 있었다. Paroxysmal nocturnal hemoglobinuria(PNH) is a rare, acquired disease involving multiple hematopoietic celllines. Characteristics of PNH are intrinsic hemolytic anemia, iron deficiency anemia and venous thrombosis. Wereport a case of PNH with characterostoc MR and CT findings. The signal intensity of renal cortex was lower thanthat of medulla on both T1- and T2- weighted MR imaging. On T2 weighted MR images, the liver showed very lowsignal intensity but the signal intensity of the spleen was normal. On precontrast CT the attenuation of renalcortex was higher than that of renal medulla and the attenuation of liver was higher than that of the spleen.These findings of MR imaging and CT were the result from the deposition of hemosiderin in the cells of proximalconvoluted tubules and transfusional hemosiderosis of liver.
양익,정수영,박해정,이열,정봉화,심정원,Yang, Ik,Chung, Soo-Young,Park, Hai-Jung,Lee, Yul,Chung, Bong-Wha,Shim, Jeong-Won 대한영상의학회 1997 대한영상의학회지 Vol.37 No.4
Purpose : To assess the usefulness of 3D-gradient echo dynamic contrast enhanced MRI (3D-DMRI) in the diagnosis of breast cancer and to determine the most useful parameter for this diagnosisMaterials and Methods : Using a 1.0T MR unit, (Magnetom, Sienens, Erlaugen, Germany), 3D-DMRI (TR/TE=30/12) with Gd-DTPA was performed in 38 cases of breast cancer, 22 of fibroadenoma, and in three normal volunteers. We retrospectively evaluated the findings according to the speed on dynamic study and maximal amount of contrast enhancement during the delayed phase;we calculated the three diagnostic parameters.Results : On conventional spin-echo T1- and T2-weighted imaes, there was no significant difference of signal intensity brtween benign fibroadenoma and breast carcinoma. Rapid contrast enhancement (within one minute) was benign in 35 breast cancer lesions (92.1%), but relatively low and slow contrast enhancement (after five minutes) was noted in three such lesions (7.9%). Gradual contrast enhancement was noted in 21 lesions of fibroadenoma (95.5%), but a moderate degree of rapid contrast enhancement (from three to five minutes) was noted in the other case (7.9%). of On the delayed enhanced phase of 3D-DMRI, the maximal amount of contrast enhancement showed no significant difference between fibroadenoma and cancer. On 3D-DMRI, an irregular, spiculated border, with high contrast enhancement was noted in all cases of breast cancer, in particular, irregular thick peripheral contrast enhancement with central necrosis was noted 11 cases (28.9%).Conclusion : For the diagnosis of breast cancer, 3D-DMRI is a useful technique. Among the diagnostic criteria of speed, maximal amount of contrast enhancement and morphology, morphologic change after contrast enhancement study was the most useful diagnostic parameter.