급.만성 췌장염으로 인한 위변화에 관한 방사선학적 고찰

전우기 대한영상의학회 1983 대한영상의학회지 Vol.19 No.2

The present study was intended to examine the spectrum of radiographic patterns of the stomach associated with acute and chronic pancreatitis and their complications. Subjects served for the study consisted of 70 cases of pancreatitis (36 cases in acute stage and 34 cases in chronic stage). Intramural and perigastric permeation of extravasated pancreatic enzymes and secondary inflammatory reaction that follows are responsible for the radiographic change observed. 1. Generalized \ulcorner미 thickening and particularly selective mucosal prominences in greater curvature of body ad antrum are characteristically seen in acute (14 of 36 cases -39%) and chronic pancreatitis (11 of 34 cases -32%). 2. The only finding fo fthe chronic pancreatitis includes patterns mimicking linitis plastica, indurated and nondistensible rugae induced by perigastric adhesion (11 of 34 cases - 32%). Familiarization with these patterns of involvement contributes to the radiographic diagnosis of acute pancreatitis avoides serious diagnostic errors in cases of chronic pancreatitis.

각종 간 질환에서의 종양유전자 및 성장인자 표현에 관한 연구

전우기,염범우 고려대학교 의과대학 1995 고려대 의대 잡지 Vol.32 No.3

The current concept of the carcinogenesis is that activated oncogenes or mutation of suppressor genes might inhibit the programmed cell death and permit cells to live forever. There are structural and functional similarities between the oncogenes and growth factors. Both substances act their functions by autocrine and paracrine effects on target cells and they appear in fetal, regenerating and sometimes in normal cells. In this study, I tried to find out which oncogenes and growth factors are involved in the process of carcinogenesis of the human liver. 53 cases of needle biopsied or resected liver specimens were used in immunohistologic study with anti sera of c-H-ras, c-myc. erbB2 and bcl-2 and antisera of TGFα and EGF. The results are as followings. 1. The antisera of EGF and TGFα revealed positive reaction on most of the normal liver tissue, hepatitis, cirrhosis and hepatoma. 2. The c-myc anti serum reveals positive reaction on only two cases of hepatoma. 3. c-H-ras antiserum revealed positive reaction on 1 case of CAH, cirrhosis and hepatoma. 4. The antisera of erbB2 and bcl-2 revealed negative reaction on all liver tissues. These findings are highly suggestive that c-H-ras and c-myc are responsible for causative oncogenes of hepatoma rather than bcl-2 and erbB2.

신생아 유구치에 관한 방사선학적 고찰

전우기,이성우,한창렬 인제대학교 1981 仁濟醫學 Vol.2 No.4

유구치석회화 상태를 통해서 신생아의 임신년령을 측정했다. There have been suggested many different methods dertermining fetal age by the roentgenographic devises, but we have suggested a study of the deciduou molars. These teeth are frequently seen on lateral views of the neonatal chest. Therefore we have utilized this method about the One-hundred Korean neonates. We have found the 2nd deciduous molar usually showed no calcification of the enamel prior to 35 weeks of geatation, whereas the ratio of the calcification of the 40 weeks was 100%. Since the mandible is included on most chest films, it is easy to glance at the jaw and estimate the gestational age.

지상발표 : Plummer - Vinson 증후군 1례 보고

전우기,이성우,한창렬 대한소화기학회 1981 대한소화기학회 추계학술대회 Vol.1981 No.-

新生兒 및 영아기의 糞의 가스에 관한 방사선학적 고찰

전우기,한창렬 인제대학교 1986 仁濟醫學 Vol.7 No.3

생후 1일 내지 12주 되는 신생아와 영아에서 복부 영역이 포함되어진 흉부 정면 사진 159매를 통하여 糞 (분) 음영을 관찰한 결과 소아에서 정상적으로 볼 수 있는 비누거품 양상의 분 음영이 대체로 생후 2주까지의 미숙아들에게서는 드물게 나타나고 나타난 경우에는 추적검사를 통하여 궤사성 장결장염의 예시로서 장막(漿膜)과 장근육 내의 가스 거품인 것을 알 수 있었다. A prospective study of abdominal and chest films of 128 babies without symptoms of intraabdominal disease, aged 1 day-12weeks, showed that the "bubbly fecal pattern" normally seen in adult and older children is rare in young premature babies in the first two weeks of life. Its presence should suggest the diagnosis of distal bowel disease, especially necrotizing enterocolitis, and demand close clinica1 and possibly sequential radiological follow-up.

수술전후의 요추간핵탈출증의 방사선학적 고찰

전우기,한창열 인제대학교 1980 仁濟醫學 Vol.1 No.1

요추핵탄출증의 수술전후의 척추강높이 요천각, 국소적척추만곡등 단순 X선 사진상 변화 소견을 비교 검토하였다. In the great majority of cases with the lower back pain, the lumbar herniated disc is one of the common causes. The plain radiographs of preoperative and postoperative periods were studied in 76 cases which were surgically verified as lumbar herniated disc at Baik Hospital. The following results were obtained : In preoperative plain radiograph, 16.9% of 76 cases revealed no specific abnormlity. The most common positive finding was the straighteing of the lumbar curvature (56.6%). Other common positive finding was a relative narrowing of the intervertebral disc space (46.1% The greatest incidence of preoperative intervertebral disc space was between 0.8cm and 1cm (48.8% of cases) and next 1.1cm.-1.3cm(37.8%) The over-all mean of lumbosacral angle in preoperative plain radiographs was 29.7˚. The greatest incidence of lumbosaral angle was between 31˚ and 40˚ (31.6% of cases) and next 21˚-30˚(30.3%). Study of postoperative(after 1 month-1 year) radiograph i) Postoperative plain radiograph showed the future decrease of disc space in 39 cases(51.3%) than preoperative one. ii) Postoperative lumbosacral angle showed further increase in 35 cases (46%) than preoperative iii) 18.6%(8 cases) of 43 cases with preoperative straightening of lumbar curvature showed the normal lumbar lordosis in postoperative radiograph. iv) 93.9%(31 cases) of 33 cases with preoperative normal lumbar lordosis also showed normal lordosis in postoperative radiograph. v) 85.7%(12 cases) of 14 cases with preoperative local lumbar scoliosis showed no scoliosis of lumbar spines in postoperative radiograph.

초음파 촬영 및 Tc-99m-HIDA를 이용한 담낭염의 진단적 평가

전우기,한창렬 인제대학교 1983 仁濟醫學 Vol.4 No.3

저자들은 1982년 6월부터 1983년 1월까지 만 8개월간 본 백병원에서 담낭염으로 의심됐던 총 62명의 환자들을 대상으로 하여 초음파 촬영 및 Tc-99m-HIDA 신티그래피를 실시하고 환자들의 최종 진단 결과를 토대로 분석한 결과 초음파 촬영은 담낭염이 의심되는 환자의 첫번 진단 방법으로 유용하고 Tc-99m∼HIDA 신티그래피는 돌이 없는 담낭염, 즉 초음파 촬영상 담낭벽의 4mm이상의 비후성과 담낭의 가장 넓은 직경이 5cm 이상이었던 경우에 유용함을 알 수 있었다. A prospective study of 62 cases was performed on patients with suspected cholecystits who were evaluated by cholesonography and 99mTc-HIDA cholescintigraphy at Department of Radiology, Paik Hospital during the period of 8 months from June, 1982 to January, 1983. * Criteria is determined for sonographic diagnosis of acute and chronic cholecystitis. 1) Visualization Vs. Nonvisualization of a fluid-filled gallbladder in the right upper quadrant. 2) Presence or absence of gallstones (echogenic foci with distal acoustic shadows) if the gallbladder was seen. 3) Gallbladder wall thickness measured at a point in the wall perpendicular to the transducer beam-4mm≤abnormal case. 4) Gallbladder shape (round Vs oval). 5) The greatest transverse diameter of the gallbladder-5cm≤abnormal case. *1) Normal HIDA scan was considered if the gallbladder was visualized within 2hr after injection. 2) Abnormal HIDA scan was considered if radioactivity was detected in the small bowel, but not in the gallbladder, 2hr after injection. Our datas were as fellows: In acute cholecystitis, 100% (19/19cases) had abnormal sonograms and the most common finding of cholesonography was thickened wall of gallbladder and 100% (19/19cases) had abnormal HIDA scan. In chronic cholecystitis, 100% (32/32cases) had abnormal sonograms and most common finding of cholesonogrophy was gallstones with thin walled and 66% (21/32cases) had abnormal HIDA scan. In differentiating normality from those with all types of gallbladder disease, HIDA sensitivity and specificity were 86% and 100%, respectively, while sonography had 100% sensitivity and 98% specificity. Data support the use of sonography as the initial imaging procedure for the patient with suspected cholecystitis. 99mTc-HIDA is useful in those cases without stones which exhibit criteria for Gall Bladder abnormality.

이달의 X선 : 심막횡격정맥 측부순환을 동반한 하대정맥 폐쇄 1예

전우기 ( Woo Ki Jeon ),염호기 ( Ho Kee Yum ),최수전 ( Soo Jeon Choi ),이봉춘 ( Bong Choon Lee ),김정수 ( Jeong Su Kim ),한성훈 ( Seong Hoon Han ),송영수 ( Young Soo Song ) 대한결핵 및 호흡기학회 1995 Tuberculosis and Respiratory Diseases Vol.42 No.5

방광암의 CT소견과 수술소견과의 비교분석

김영통,전우기,한창열,김호균,서현숙 인제대학교 1995 仁濟醫學 Vol.16 No.1

42예의 방광암의 CT소견과 수술소견을 후향적으로 비교분석하여 다음과 같은 결론을 얻었다. 환자의 성별은 남자가 31명, 여자가 11명이었고, 연령은 39∼85세(평균연령:63세)였으며, 40대에서 60대사이에 가장 많았다. 조직학적으로 전이성세포암이 40례, 편평세포암이 1례, 그리고 선암이 1례였다. CT의 방광암 병기 결정의 전체 정확도는 총 42례중 32례에서 병리소견과 일치하여 76%였으며, 과병기는 8례로 19%였고 저병기는 2례로 5%였다 CT병기 B2혹은 그 이하였던 19례에서 95%(18/19)가 정확했고 나머지 1례(5%)는 저병기였다. CT 병기 C는 36%(4/11)의 정확도와 55%(6/11)에서 과병기 그리고 나머지 1례는 저병기를 보였다. CT 병기 D는 83%(10/12)의 정확도와 나머지는 2례는 과병기였다. Staging of carcinoma of the urinary bladder is important for the choice of therapy and also has prognostic implications. Computed tomography (CT) is a very convenient and noninvasive method in the staging of bladder carcinoma as CT glees an accurate information of extension of tumor outside the bladder into the neighboring structures and pelvic side walls. CT is also a very useful method in determination of lymph node status or distant metastases. We performed the comparative study between CT staging and pathologic staging in 42 cases of bladder cancer. Overall accuracy of CT staging of bladder carcinoma was 76%, overstaging by CT was 19% and understaging was 5%.

Spin transfer effect in spin-valve pillars of [CoFe/Pd]₂ free layer

이재철,전우기,신경호,최석봉,이경진,유천열 한국자기학회 2006 한국자기학회 학술연구발표회 논문개요집 Vol.16 No.1