폐종양의 세포학적 진단에서 경기관지세침흡인검사의 유용성

김태엽,공경엽,김원동,김온자,Kim, Tae-Yub,Gong, Gyung-Yub,Kim, Won-Dong,Kim, On-Ja 대한세포병리학회 1997 대한세포병리학회지 Vol.8 No.2

Transbronchial fine needle aspiration(TBNA) is one of the cytologic methods in diagnosing lung cancers. TBNA can be used in cases of hilar, mediastinal or lung masses adjacent to the bronchi. We analyzed and compaired the findings of 27 cases of TBNA and bronchial washing and brushing(BW/BB) in lung cancers confirmed by either biopsy or surgical resection between Jun, 1996 and May, 1997 in Asan Medical Center. They were 18 cases of non-small cell carcinomas(eight squamous cell carcinomas, nine adenocarcinomas, and one large cell undifferentiated carcinoma), eight cases of small cell carcinomas, and one case of metastatic hepatocellular carcinoma. The sensitivity of TBNA was 37%(10/27) and false negative was 63%(17/27). Although the sensitivity of BW/BB w3s 56%(15/27), it was not different statistically from that of TBNA(Chi square, p=0.38). Overall sensitivity of TBNA and BW/BB in this series was 70%(19/27). Forty-seven percent of false negative TBNA(8/17) were positive in BW/BB. The findings suggest that the addition of TBNA to the standard BW/BB increases diagnostic yield in cytologic diagnosis of lung cancer.

장비에 따른 SUV의 차이와 이에 관한 고찰

김태엽,임정진,이홍재,김현주,김중현,이재성,Kim, Tae-Yeob,Lim, Jung-Jin,Lee, Hong-Jae,Kim, Hyun-Joo,Kim, Joong-Hyun,Lee, Jae-Sung 대한핵의학기술학회 2011 핵의학 기술 Vol.15 No.1

표준섭취계수(Standard Uptake Value, SUV)는 PET 검사에 있어서 매우 중요한 지표이다. 그러나 이는 장비에 따라서 다르게 나타난다. 그러므로 실제의 SUV와 장비에 따른 SUV의 차이를 알아보고자 한다. 실험을 위해 사용된 PET scanner는 본원과 보라매 병원에서 사용하고 있는 Biograph True Point True V 40 (Siemens, USA), Gemini Dual (Philips, USA), Gemini TF 64 (Philips, USA) 총 3대로 이루어져 있다. SUV를 평가하기 위한 phantom은 NEMA PET phantom (Data Spectrum co., USA)이고 내부에 3개의 hot insert를 포함하고 있으며 총 중량은 6.8kg으로 phantom과 물의 중량을 합친 무게이다. 방사성동위원소는 $^{18}F$-FDG 25.9 MBq (0.7 mCi)와 29.6 MBq (0.8 mCi)을 사용하였고 스캔은 두 번으로 나누어 이루어졌다. 25.9 MBq (0.7 mCi)은 background에 3.7 MBq (0.1 mCi), insert 1에 3.7 MBq (0.1 mCi), insert 2에 7.4 MBq (0.2 mCi), insert 3에 11.1 MBq (0.3 mCi)이 주입되었고 29.6 MBq (0.8 mCi)은 background에 1.85 MBq (0.05 mCi), insert 1에 7.4 MBq (0.2 mCi), insert 2에 9.25 MBq (0.25 mCi), insert 3에 11.1 MBq (0.3 mCi)이 주입되었다. Uptake time은 20분이고 2 bed scan을 하였으며 bed 당 3분의 영상획득이 이루어졌다. 두 번의 실험 모두 실제의 SUV와 유사하게 나타났다. 방사능량이 소량일 경우에는 그 차이가 미미했으나 방사능량이 증가할수록 그 차이는 점점 벌어졌다. 하지만 그 차이 또한 크지는 않았다. 장비 별 차이를 백분율로 환산하면 Biograph의 경우 87.2%, Gemini Dual은 91.2%, Gemini TF 64는 85.9%로 나타났으며 이는 실제의 값에 유의하다. 장비 별로 분류해보면 Biograph와 Gemini Dual은 비슷한 결과를 보여주었고 다만 Gemini TF 64에서만 두 장비보다 낮게 나타났다. 실험 결과 장비 별로 SUV의 차이는 있으나 그 차이가 실제의 값에 유의하였다. SUV가 차이가 나는 이유는 장비 별 재원의 차이와 재구성 방법, 제조사 별 SUV 함수식에서 기원이 되는 것으로 파악되며 소량의 방사능량에서는 차이가 없으나 방사능량이 증가할수록 차이가 커지는 것으로 보아 이 점에서의 추후 고찰은 필요할 것으로 사료된다. Purpose: The SUV is a widely used semi-quantitative index in PET for the estimation of radio-tracer accumulation in VOI. In this study, SUVs from three different PET/CT scanners were assessed, and differences between SUVs were evaluated. Materials and Methods: The PET/CT scanners which were assessed in this study were GEMINI, GEMINI TF 64 (Philips) and Biograph True Point True V 40 (Siemens). The NEMA PET phantom (Data Spectrum Corp., USA) was used to evaluate SUVs. The NEMA PET phantom has6.8 kg weight and three hot inserts. Two different activity distributions for the background and inserts were tested. The activity ratio were 3.7:3.7:7.4:11.1 MBq (1:1:2:3) and 1.85:7.4:9.25:11.1MBq (1:4:5:6) for each of background, insert 1, insert 2 and insert 3. Acquisition time was 2 minutes per bed position and NEMA PET phantom could be covered by two bed positions for all PET/CT scanners. The SUVs from each PET/CT scanner were compared with calculated true value. Results: For both activity ratios, all scanners showed similar results. The differences between each scanner were insignificant. Each scanner showed 91.2%, 85.9% and 87.2% of true SUV for GEMINI, GEMINI TF 64, Biograph True Point TrueV, respectively. Conclusion: For all scanners, SUVs were slightly lower than true value. However, the difference between scanners was insignificant. The SUVs from these scanners would be clinically meaningful if their consistent underestimation is kept in mind.

중국의 아황산가스 배출이 한반도의 대기오염에 미치는 영향

김태엽,김선태,김정욱 ( Tae Youp Kim,Sun Tae Kim,Jeong Wk Kim ) 대한환경공학회 1993 환경종합 학술대회 Vol.- No.-

TiCode - 12 의 양극산화에 대한 연구

김태엽,윤승열 ( Tae Yeob Kim,S . R . Yoon ) 한국부식방식학회 1985 Corrosion Science and Technology Vol.14 No.3

Comparative Study of Silicon Quantum Dot Formation In-situ Grown with a Gas Mixture of SiH_4+N_2 and SiH_4+NH_3

김태엽,박래만,In-Kyu You,최철종,Ansoon Kim,Maki Suemitsu 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.2

In this study, we investigated the growth mechanism of silicon quantum dots (Si QDs) embedded in a Si-nitride film formed by using plasma-enhanced chemical vapor deposition. Special attention was paid to the influence of the nitrogen source, especially in molecular nitrogen (N_2) and ammonia (NH_3). We found that the nitrogen source played a decisive role in determining the location of nucleation sites of Si QDs. In the case of the SiH_4+NH_3 gas source, the Si QDs mainly nucleated at the surface of the Si substrate, in contrast to the case of SiH_4+N_2 which should no such tendency. We believe that a specific surface reaction of the initially adsorbed NH_3 molecules forming lowdimensional structures (NH_2-Si-Si-H) on the Si substrate provide the nucleation sites for Si QDs when using a SiH_4+NH_3 plasma.

해외건설 시장다변화의 교두보, 해외건설협회 정보네트워크

김태엽,Kim, Tae-Yeop 한국건설관리학회 2011 한국건설관리학회 논문집 Vol.12 No.5

김동리 소설에 나타나는 경북 방언

김태엽(Kim Tae-yeop) 우리말글학회 2006 우리말 글 Vol.38 No.-

The primary purpose of this paper to describe the grammatical forms of Gyeongbuk dialect in Kim, Dong-li's novels of japanese imperialism period and the diachronic relations between in those day's dialects and nowaday's dialects. We can find out a little grammatical forms of Gyeongbuk dialect in Kim, Dong-li's novels of japanese imperialism period. There are the postpositions such as subject case marker ‘-i’ and the possessive case marker ‘-i’ in Kim, Dong-li's novels. The subject marker ‘-i’ is used to as a Gyeongbuk dialect of nowadays. But the possessive case marker ‘-i’ in Kim, Dong-li's novels is a phonetic marking in Gyongbuk dialect. There are final endings such as ‘-guma’, ‘-numa’, ‘-eulgeoro’, ‘-ngyo’, ‘-ga’, ‘-go’, ‘-na’, ‘-no’, ‘-so’, ‘-se’, ‘-ja’ and prefinal endings ‘-eul-’ in Kim Dong-li's novels. The greater parter of among these final endings serves as Gyeongbuk dialect of nowadays. The interrogative ending ‘-ngyo’ is used such as form of ‘-ngio’ in 1920-1930, but the form of ‘-ngyo’ come into existence in Kim Dong-li's novel of 1930-1940. There are final endings ‘-geodeun’, ‘-eumyeon’, ‘-eumeun’ had been diverted the grammatical function from conjunctive ending. We can find out the grammaticalization of ‘boda’ in final ending ‘-ngabae’ in Kim Dong-li's novel of japanese imperialism period. The ending ‘-ngabae’ of Gyeongbuk dialect was formed by grammaticalization of ‘boda’ in ‘-ngaboda’ of Jungbu dialect in 1930-1940. There are the peculiar tense expression method and the negative expression method in Gyeongbuk dialect of Kim Dong-li's novels. The tense expression in Gyeongbuk dialect of his novels did not diverted from tense form to adjective form in the sentence. The negative expression in his novels did not come out the form ‘-ji aniha-’ but negative expression by adverb ‘an’. The past tense form ‘-ass-’, ‘-eoss-’ and adverb ending form ‘-a’, ‘-eo’ in Gyeongbuk dialect of Kim Dong-li's novels are not distributed complementary respectively in phonological condition.

초기 간세포암종을 동반한 간경변증 환자에서 생존 예측에 있어서의 간정맥압력차와 연관인자

김태엽 ( Tae Yeob Kim ),김문영 ( Moon Young Kim ),장재영 ( Jae Young Jang ),석기태 ( Ki Tae Suk ),정승원 ( Soung Won Jeong ),김동준 ( Dong Joon Kim ),손주현 ( Joo Hyun Sohn ),백순구 ( Soon Koo Baik ) 대한간암학회 2014 대한간암학회지 Vol.14 No.1

Background/Aims: To analyze the usefulness of hepatic venous pressure gradient (HVPG) in survival prediction in cirrhotic patients with early and very early hepatocellular carcinoma (HCC). Methods: We consecutively collected data of 45 stable cirrhotic patients (male 41, median age 57.2 years, BCLC A 29) with early-stage HCC undergoing HVPG measurement. Prognostic accuracy of HVPG was analyzed by the area under curve (AUC). Survival curves and the associated factors of HVPG status were obtained using Kaplan-Meier method and logistic regression analysis, respectively. Results: The AUC value for prediction of survival by HVPG were 0.754 (95% CI, 0.603-0.870, P=0.006). The cut-off value of HVPG to predict death was 12 mmHg. Among the 45 patients, 11 patients (24.4%) died: 11 of 28 patients in the high HVPG group and none of 17 patients in the low HVPG group during followup period (P=0.003). The survival rate with high HVPG group was higher than those of low HVPG group (log rank P=0.008). In Child-Turcott-Pugh (CTP) class, the survival rate with CTP A class was higher than that with CTP B class (log rank P<0.001). The only associated factor with HVPG ≥12 mmHg in CTP A class and early-stage HCC was the presence of medium or large sized esophageal varices (odds ratio 66.8, 95% CI, 1.3-3530.4, P=0.038). Conclusions: HVPG ≥12 mmHg may be suggested a predictor of survival in cirrhotic patients with early-stage HCC. In CTP A class, the presence of medium or large sized esophageal varices were associated with high HVPG.

중국의 아황산가스 배출이 한반도의 대기오염에 미치는 영향

김태엽(Tae Youp Kim),김선태(Sun Tae Kim),김정욱(Jeong Wk Kim) 대한환경공학회 1993 대한환경공학회 학술발표논문집 Vol.1993 No.12

증례보고 : 개심술 마취에서 동맥압 파형분석을 이용한 심박출량과 중심정맥 산소포화도

김태엽 ( Tae Yop Kim ),권원경 ( Won Kyoung Kwon ),윤창룡 ( Chang Yong Yoon ),김혜경 ( Hae Kyoung Kim ),김준석 ( Jun Seok Kim ),지현근 ( Hyun Keun Chee ) 대한마취과학회 2007 Korean Journal of Anesthesiology Vol.53 No.1

The determination of arterial pressure wave-derived cardiac output (APCO) and central venous O2 saturation (ScvO2) has been introduced as a less invasive procedure for monitoring cardiac function and oxygen delivery. We have used an APCO sensor (FloTrac(TM)) and a monitor for ScvO2 (Vigileo(TM)) in two cases of cardiac valve surgery, where placement of pulmonary artery catheter (PAC) was not applicable due to unfavorable cardiac structure (case 1) and was contraindicated due to an unstable cardiac conduction disorder and arrhythmia (case 2). In case 1, monitoring of APCO was started from the beginning of anesthesia induction and a ScvO2 monitoring central venous catheter was inserted just after anesthesia induction. APCO, ScvO2 and other hemodyanamic information such as arterial BP, CVP, and data obtained from transesophageal echocardiography (TEE) during the pre-cardiopulmonary bypass (CPB) period were measured. APCO and ScvO2 during the post-CPB period showed a reliable correspondence with continuous cardiac output (CCO) and mixed venous O2 saturation (SvO2) as measured by PAC at the end of CPB. In case 2, APCO and ScvO2 were monitored instead of CCO and SvO2. The values of APCO showed a good correlation to intraoperative COs indirectly calculated by the velocity-time integral of the aortic outflow determined in the TEE examination. We experienced that monitoring APCO and ScvO2 is useful for anesthesia management in cardiac valve surgery and can be an alternative to CCO and SvO2 if the placement of PAC and the thermodilution method are not applicable. (Korean J Anesthesiol 2007; 53: 109~14)