영상진단의 최신지견 (한국인 간암)

최병인 대한간암학회 1999 대한간암연구회 학술심포지엄 Vol.- No.-

담낭암의 영상진단

최병인 한국간담췌외과학회 1997 한국간담췌외과학회지 Vol.1 No.1

영문 의학 논문 작성법: 개정원고 출간까지의 실제적 조언

최병인 대한영상의학회 1991 대한영상의학회지 Vol.27 No.5

This review describes practical techniques which concentrate on the manuscript preparation and submission. revised manuscript preparation response to a peview and editor's check, and checking galleys, according to publication processes, stage by stage. Examples for each stage are discussed.

간내담석의 체외충격파 쇄석술 : 효과가 있는가?

崔炳寅 대한초음파의학회 1991 ULTRASONOGRAPHY Vol.10 No.2

Remifentanil Prevents Withdrawal Movements Caused by Intravenous Injection of Rocuronium

최병인,최승호,신양식,이성진,윤경봉,신서경,이기영 연세대학교의과대학 2008 Yonsei medical journal Vol.49 No.2

Purpose: The incidence of pain induced withdrawal movement following intravenous injection of rocuronium is high. This randomized, double-blind, placebo-controlled study was designed to evaluate the effect of pretreatment of remifentanil on the withdrawal movements due to intravenous injection of rocuronium during anesthetic induction. Materials and Methods: Ninety adult female patients undergoing thyroidectomy were randomly allocated to three groups. Each patient intravenously received one of three solutions of equal volume (4mL): normal saline (Group I, n=30), 0.5μg/kg remifentanil (Group II, n=30) or 1μg/kg remifentanil (Group III, n=30). Thirty seconds after remifentanil administration, anesthesia was induced with 5mg/kg IV thiopental. Twenty seconds after thiopental injection, 0.6mg/kg IV rocuronium was administered (injection rate of 0.5mL/sec) and patients’ withdrawal movements were assessed. Mean arterial pressure (MAP) and heart rate were assessed on arrival in the operation room, before the tracheal intubation and immediately, 1 and 2 min after the tracheal intubation. Results: The incidence of withdrawal movements was significantly lower in both of the remifentanil groups (3 and 0% in Group II and III, respectively) than in the saline group (70%). Remifentanil attenuated the increase of heart rate and MAP immediately and 1 min after the tracheal intubation. Conclusion: The pretreatment with 0.5 and 1.0μg/kg remifentanil of bolus doses prevented the withdrawal movements caused by rocuronium injection, and effectively blunted cardiovascular activation following tracheal intubation.

굴곡카테타를 이용한 간내 잔류담석의 경피적 제거술 : 179예 분석

최병인 대한영상의학회 1992 대한영상의학회지 Vol.28 No.2

Intrahepatic stones are frequently associated with recurrent pyogenic cholangiohepatitis and complete surgical removal of the stones is almost always difficult because of the large number of stones and associated bile duct strictures. One hundred and seventy-nine patients with retained intrahepatic stones underwent percuttaneous stone removal utilizing a preshaped angulated catheter and a Dormia basket under fluoroscopy with a combination of techniques including irrigation-suction. crushing of large stones. balloon dilatation of strictures and extracorporenal shock wave lithotripsy. The procedure was performed through a mature T-tube tract (177 patients) and a mature transhepatic tube tract (two patients). Stones were exclusively intrahepatic in 130 patients. whereas 49 patients also had stones in the common bile duct. In 91 (50.8%) of 179 patients. the stones were completely removed and in 36(20.1%) patients most of the stones were removed. The overall success rate was 70.9% ngulation deformity. stricture of bile ducts and impacted stones were the factor most often responsible for failure, No significant complications were observed. Fluoroscopicalyy-guided percutaneous interventional procedures with a preshaped angulated catheter is an useful complementary procedure to surgery for patients with intrahepatic stones. the major benefits of an individually fitted angulated catheter are its safety and easy access to small peripheral bile ducts.

MLCC를 이용한 SMPS의 EMI 저감 설계

최병인,좌성훈,Choi, Byeong-In,Choa, Sung-Hoon 한국마이크로전자및패키징학회 2020 마이크로전자 및 패키징학회지 Vol.27 No.4

Recently, as the data speed and operating frequencies of Ethernet keeps increasing, electro magnetic interference (EMI) also becomes increasing. The generation of such EMI will cause malfunction of near electronic devices. In this study, EMI filters were applied to reduce the EMI generated by DC-DC SMPS (switching mode power supply), which is the main cause of EMI generation of Ethernet switch. As the EMI filter, MLCCs with excellent withstanding voltage characteristics were used, which had advantages in miniaturization and mass production. Two types of EMI MLCC filters were used, which are X-capacitor and X, Y-capacitor. X-capacitor was composed of 2 MLCCs with 10 nF and 100 nF capacity and 1 Mylar capacitor. Y-capacitor was consisted of 6 MLCCs with a capacity of 27 nF. When only X-capacitor was applied as EMI filter, the conductive EMI field strength exceeded the allowable limit in frequency range of 150 kHz ~ 30 MHz. The radiative EMI also showed high EMI strength and very small allowable margin at the specific frequencies. When the X and Y-capacitors were applied, the conductive EMI was greatly reduced, and the radiation EMI was also found to have sufficient margin. In addition, X, Y-capacitors showed very high insulation resistance and withstanding resistance performances. In conclusion, EMI X, Y-capacitors using MLCCs reduced the EMI noise effectively and showed excellent electrical reliability.

발표요지 : 반하의 조직배양으로부터 자구형성 기원에 대한 해부학적 연구

최병인,소웅영 한국식물생명공학회 ( 구 한국식물조직배양학회 ) 1989 한국식물생명공학회 춘계학술연구발표회 Vol.1989 No.-

가토 간의 VX-2 암종 : 초음파검사, 전산화단층촬영술 및 자기공명영상의 발견율에 대한 비교연구

최병인 대한영상의학회 1994 대한영상의학회지 Vol.30 No.3

Purpose : Our study was designed to investigate the value of different imaging techniques in the early detection of VX-2 carcinoma in rabbit livers by direct comparison of sonography, CT, and MR imaging with pathologic specimens.Materials and Methods : VX-2 carcinomas were induced in 20 rabbit livers by direct inoculation of U.1 ml of aliquot of the tumor tissue suspension (1 XIO"/mm") to hepatic parenchyma with an 18 gauge needle after laparotomy. One week after the inoculation of tumor cells, sonography with a 5 MHz transducer, CT after a bolus injection of contrast medium (3 mL/kg), and 71-weighted MR imaging at a 2.07 with spin-echo techniques(TR/TE : 500/30 msec, 2000/30, 80 msec) as well as enhanced T1-weighted MR imaging with GD-DTPA (0.1mmole/kg) were performed in each rabbit.Results: At pathologic specimens, adequate induction of tumor nodules were 59 with 3-21 mm size (aver-age 8.3 mm). All 69 tumors had fibrous capsules and central necrosis pathologically. The sensitivities of sonography, contrast enhanced CT and MR imaging were 54%, 611/,, and 87%, respectively. Among MR images, the sensitivities of T1-weighted images, proton density images, T2-weighted images, and enhanced T1-weighted images were 33%, 77%, 83%, and 81%, respectively. On sonograms and CT scans, VX-2carcinomas show variable appearance regardless of the tumor size and histopathologic findings. On MR images, the tumors were ring shape with variable thickness on all pulse sequences. There was no significant correlation among the findings of three imaging techniques.Conclusion : MR imaging has the highest detectability for the VX-2 carcinomas in rabbit liver, Therefore, MRI may be the most valuable imaging technique for the detection of small hepatic tumors with extensive necrosis like VX-2 carcinomas.arcinomas.

산부인과영역의 최신 영상진단법 : 자기공명영상을 중심으로

최병인 中央醫學社 1989 中央醫學 Vol.54 No.8

MRI는 현재 매우빠른 발전추세에 있으며 최근 초전도자석을 이용한 MRI의 해상력과 대조도가 급속도로 개선되었고 최근에 주사시간의 단축이 가능하게 되어 골반강질환의 진단의 기여도는 매우 높다. 부인과 영역에서 MRI의 이용분야에는 일차적 무월경증 환자에서 선천성기형을 찾아내는 도움을 줄 수 있고 자궁내 종양의 크기, 위치, 모양 개수 등을 가장 정확하게 볼 수 있는 방법이며 난소를 포함한 자궁 부속기 종괴의 조직특성을 분석하는데 기여할 수 있고 각종 암의 병기결정에 도움이 된다. 산과영역에서의 MRI의 이용은 현재까의 연구에 의하면 MRI가 산모 및 태아에 위험부담을 준다는 보고가 없어 산모에게도 시행되고 있으며 초음파검사의 보완적 기능으로 태아의 피하지방층을 관찰하여 발육부진아를 판정하는데 도움이 되고 양수과소증산모의 태아판정, 태반의 이상소견 관찰등에 이용될 수 있다.