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류춘욱 대한영상의학회 1989 대한영상의학회지 Vol.25 No.2
Angiography is essential for the detection of bleeding vessels in traumatic vascular injury. Immediatly after the diagnosis. transcatheter embolization can be performed for the control of bleeding effectively & easily with proper use of embolic materials. Transcatheter embolization is believed to be the treatment of choice when emergency control is needed where surgical approach is difficult and in those who are poor candidate for surgery. We have tried bleeding control in 18 cases of trauma over receut 4 years. The results were as follows; 1. Causes of bledeing (cases); Blunt or penetrating trauma(10) latrogenic trauma (8) (Postoperative (5) Needle biopsy(2) Percutaneous hepatic procedure(1) 2. Embolized vessels: Renal artery branches (8) Hepatic artery branches(2) Arteries supplying chest wall (2) External carotid artery branches(3) Internal carotid artery (1) Circumflex humeral artery (1) Internal iliac artery branches(1). 3. Embolic agents: Gelfoam cubes(16) Stainless steel coils (3) Detachable latex balloon(1). 4. Successful bleeding control was achieved in 17 cases and reduction of the amount of bleeding in one case without significant complications.
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류춘욱,김태헌,서경진,김용주,강덕식 慶北大學校 醫科大學 1988 慶北醫大誌 Vol.29 No.1
1984년 4월부터 1987년 12월까지 경북대학교병원 진단방사선과에서 경험한 14예의 상악동 악성종양을 관찰하여 아래와 같은 결과를 얻었다. 1. 병리조직학적으로 편평상피암이 9예였고 선양낭암, 악성흑색종, 횡문근육종, 세망육종, 미분화암이 각각 1예씩이었다. 2. 주된 CT 소견은 상악동내 음영증가와 골파괴가 동반된 연부조직 종괴였으며 전례에서 관찰되었다. 3. 조직학적 분류에 따른 CT 소견상의 특이성은 찾을 수 없었고 두개강내 침범을 제외하고는 종괴 범위의 결정에 대한 조영증강의 잇점은 없었다. 4. 골파괴와 연부조직 종괴확장의 특이한 경로는 찾을 수 없었고 상악동내의 병소의 원발 위치에서의 전방향으로의 확장을 주로 보였다. 5. 상악동 악성종양의 CT는 안와, 하측두와, 익구개와, 익상와 및 비인강 등의 종양침범여부의 판정에 유용하며 치료방침의 결정 및 방사선치료 계획설정에 선택적인 진단방법으로 생각된다. CT findings of proven 15 malignant tumors of maxillary sinus were retrospectively analized to identify CT charactentics. The most common histologic type was squamous cell carcinoma(9 cases). Others were adenoid cystic carcinoma(1 case), rhabdomyosarcoma(1 case), malignant melanoma(1 case), reticulum cell sarcoma(1 case), adenocarcinoma(1 case) and undifferentiated carcinoma(1 case). Majority of the cases are advanced state of disease as 6 cases of T_4, 6 cases of T_3, 3 cases of T_2. The most common finding of malignant tumor was soft tissue mass associated with bone destruction that was noted in all of the cases. Others were bone erosion and displacement, fat plane obliteration, low density within soft tissue mass in that order of frequency. Tumor spreading out of antrum was most commonly to nasal cavity (13 cases), pterygopalatine fossa (12 cases) and ethmoid sinus (10 cases), followed by orbit (9 cases) and infratemporal fossa (7 cases).
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박노혁,배경수,신현웅,양근석,염헌규,류춘욱,김용길,서경진,강덕신 대한영상의학회 1996 대한영상의학회지 Vol.35 No.1
Purpose : To evaluate the clinical utility of the teleradiology system using the information super highway communication network. Materials and Methods : Two radiologists selected 101 cases of pneumothorax and 20 cases of miliary tuberculosis. There were scanned and transmitted to our hospital at a speed of 640 Kbps and displayed on a video monitor with a resolution of 1280 pixels/line $\times$ 1024 lines. Four radiologists divided into three groups :read the images group A read the images without image processing ; group B read the images with image processing, group C read the radiographic films on the view box. The authors compared sensitivity and specificity between the groups and checked their statistical significance using the Chi-square test. According to the location of the pleural line, we divided the pneumothorax into four types : continve on this live type 1, pleural line confined to the apex ; type 2, to the upper half ; type 3, to the lower half ; type 4, to the upper through lower half. We then compared sensitivity between the Three groups. Results : In the pneumothorax group, the average sensitivity of group A, B and C was 79%, 90% and 96%, and average specificity was 99%, 99% and 94%, respectively. There were statistically significant differences in sensitivity between group A and B and between group B and C (p<0.017).There were no statistically significant difference in specificity between group A and B or between group B and C. In the miliary tuberculosis group, the average sensitivity of group A, B and C was 73%, 78% and 90%, and average specificity was 95%, 95% and 100%, respectively. With regard to sensitivity and specificity, there was no statistically significant difference between group A and B or between group B and C but there was a statistically significant difference between group A and C (p<0.017). According to the location of the pneumothorax, for all types, the sensitivity of group A was less than that of group B and group B was less than that of group C. Conclusion : All groups showed reduced observer performance in the detection of pneumothorax and military tuberculosis when reading a transmitted image on the monitor-workstation compared with reading conventional radiographs on the view box. To improve the clinical utility of the teleradiology system, a higher resolution workstation and adequate image processing are required.
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