http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
직장종양의 병기 결정에서 경직장코일을 이용한 자기공명영상 진단:가도리니움 조영증강이 도움이 되는가\ulcorner
강효준 대한영상의학회 1997 대한영상의학회지 Vol.37 No.6
Purpose:To determine whether gadolinium enhancement is helpful in rectal tumor staging determined by MRI and using an endorectal surface coil. Materials and Methods:Between January 1995 and July 1996, we studied 17 MRI scans in which the scanning procedure had involved the use of an endorectal coil;this was a prostate coil in six patients, and a colon coil in eleven. Eight patients were male and nine were female;they were aged between 39 and 77 (mean, 59) years, and the tumors which had presented were adenocarcinoma(n=15), lymphoma(n=1) and villous adenoma(n=1). Precontrast scanning showing invasion of the rectal wall and perirectal fat were interpreted, and postcontrast TIWI and pathological findings were then compared. Fifteen patients underent surgical resection but the other two(on adenocarcinoma and one lymphoma) underwent only an endoscopic biopsy. Results:On precontrast scanning with the prostate coil, accurate staging was possible in three cases(one of stage T2, and two of stage T3);we overstaged two cases of stage T2 as stage T3. On postcontrast TIWI, however, we additionally understaged one case of stage T3 as stage T2. In a case of adenocarcinoma proven by biopsy, no definite difference was noted between pre- and postenhanced scan. On preconstrast scan using a colon coil, accurate staging was possible in six cases(two of stage T1, one of stage T2 and three of stage T3). We overstaged a case of stage T2 as stage T3 and understaged three cases of stage T3 as stage T2. On postcontrast TIWI, however, we accurately diagnosed one additional case of stage T3, not diagnosed on precontrast scan. In one case of bioptically-proven lymphoma, no definite difference was noted between pre- and postenhanced scan. Concluision:In rectal tumor staging, pre- and postenhanced scans are both 60% accurate. In MRI using an endorectal surface coil, gadolinium enhancement is not, therefore significantly helpful.
강효준,왕한영,성호석 ( Hyo Jun Kang,Han Young Wang,Ho Suk Sung ) 대한피부과학회 1997 大韓皮膚科學會誌 Vol.35 No.3
Background: Pityriasis versicolor(PV) is a superficial mycosis, theoretically unusual in children. Epidemiologic and clinical data for children with PV under 14 years were collected. Objective . The purpose of this study was to evaluate the clinical features of PV in the young. Method: We included all cases of PV in patients under 14 years of age observed in our department from 1981 to 1995. All cases were diagnosed on the basis of clinical criteria and were confirmed by microscopic examination. Results : From 1981 to 1995 we encountered 32 cases of PV in children, compared with 637 cases in adults; thus children represented 4.7% of all cases. The ratio of male to female was l. 7:1. Among the age groups, the incidence was the highest in the 10-14 years(43%). The monthly prevalence was the highest in August. Distribution of the lesions were the face(40.9%), neck (25%), chest(13.6%), back(11.3%), extremities(6.8%) and abdomen(2.2%). The incidence of hypopigmented lesions was 70.4% and that of hyperpigmented lesions was 29.6%. Conclusion : This study confirms that the face is a predilectionl site for PV in children and all facial lesions are hypopigmented. Other clinical features are variable and similar to those of adults. (Kor J .Dermatol 1997;35(3): 431-434)
강효준 ( Hyo Jun Kang ),박준환 ( Joon Hwan Park ),왕한영 ( Han Young Wang ),성호석 ( Ho Suk Sung ) 대한피부과학회 1996 대한피부과학회지 Vol.34 No.3
We report a case of Kyrle's iisease occurring in a 60-year-old woman with chronic renal failure. The patient had multiple hyperkeratotic papules with a central plug on the back, and in the upper and lower extremities. Histopathological findings showed epidermal invagination filled with parakeratotic column and basophilic debris. Many dyskeratotic and vacuolated cells were present below the keratotic plug, and penetration of the parakeratotic column into the dermis was seen. (Kor J Dermatol 1996;34(3): 472-475)
강효준(Hyo-Jun Kang),김경민(Kyung-Min Kim),정진우(Jin-Woo Jeong) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.11
This paper presents a real-time fierce dog detection model based on YOLOv5, a type of one stage detection algorithm. The YOLOv5 model is often used for real-time object detection because of its fast speed. In this work, Tsinghua Dogs Dataset, which has a total of 130 species and 70,428 image data, 1,079 fierce dogs designated by law, and 5,519 dogs from 17 species that exist the most in Korea were used for actual model learning. Finally, for real-time fierce dog detection, we implemented the web service by converting the weight file of the YOLOv5 model into a tensorflow.js-compatible format.