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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,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.
양익,정수영,박해정,이열,박용욱,심정원,Yang, Ik,Chung, Soo-Young,Park, Hai-Jung,Lee, Yul,Park, Young-Wook,Shim, Jeong-Won 대한영상의학회 1996 대한영상의학회지 Vol.34 No.5
건초 거대세포종양은 발목, 무릎, 손목 관절등의 작은 관절주위 건초의 활막을 침범 하는양성종양으로 병리조직학적으로 색소융모결절성 활막영과 유사해 T1, T2 강조영상 MRI에서 주위 골격근과 비교해 낮은 신호강도를 보였다. Giant cell tumor of the tendon sheath(GCTTS) is a benign condition which involves the synovium of the tendon sheaths, and usually occurs around the small joints, e. g. the ankle, knee, and wrist. Histologically, GCTTS is similar to pigmented villonodular synovitis(PVNS). The authors report MRI findings of a GCTTS. This showed lower signal-intensity lesions than adjacent muscles on T1-weighted, proton density weighted, and T2-weighted images.