투시 조영 검사 시 확대율에 따른 피폭선량에 관한 고찰

강경미,홍선숙,성민숙,손운흥,Kang, Kyeong-Mi,Hong, Seon-Sook,Seong, Min-Sook,Song, Woon Heung 대한디지털의료영상학회 2013 대한디지털의료영상학회논문지 Vol.15 No.2

Purpose : The purpose of this study is the magnification rates depending on the area of patient dose (DAP) and glass dosimeter see the change of the dose according to the dose characteristics of low-magnification aims to raise standards. Materials and Method : Direct DR equipment Sonialvision DAR-8000f, Shimadzu was used, the patient entrance dose measurements to the surface of the Rando Phantom of the neck and the abdomen was placed on the Xi unfors. glass dosimeter for measuring organ doses at the same time the Rando Phantom of the major organs in place by inserting a 9 ", 12", 15 ", 17" and 30 seconds for each magnification were measured according in fluoroscopy. DAP meter area of the patient dose was measured. Result : Esophagography at 17" 143% than 9"magnification the average area dose was increased. Organ dose of Esophagography at 17" was decreased 25.32% than 9" magnification. UGI at 17" was increased 129.73% DAP than 9" magnification. Organ dose of UGI at 17" was decreased 23.32% than 9" magnification. Where the major organs of magnification at 17" were decreased(lung -25.96%, stomach -33.09%, spleen -27.81%, liver -4.92%) than 9" magnification. Conclusion : Expected to get better quality image While using the proper magnification, and have recognition that difference Organ doses and DAP meter in fluoroscopy.

복부투시조영 검사 시 Added filter와 Grid 변화에 따른 선량 및 화질에 관한 연구

홍선숙,강경미,성민숙,이종웅,Hong, Seon Sook,Kang, Kyeong Mi,Seong, Min Suk,Lee, Jong Woong 대한디지털의료영상학회 2012 대한디지털의료영상학회논문지 Vol.14 No.2

Amount of radiation exposure by seeing through fluoroscopy examination while is many patient exposure administration and unprepared misgovernment be. In this study, abdominal fluoroscopy during the scan, the dose and image quality change according to the use of grid and added filter optimized by measuring the test condition is proposed. Uses seeing through fluoroscopy examination equipment of Image Intensifier of Easy Diagnost Eleva (Philips), under tube type and uses Human phantom and measures average area dose according to grid insertion existence and nonexistence and added filter kind change. Measure sum of 29 organ dose and effective dose through PCXMC imagination simulation program and image J program through noise, SNR, image distortion was measured. Resolution, sharpness, and analyzed using the MTF curves. Fluorography the grid to insert the filter thickness and thickening and increased the average area dose and organ doses and effective dose. In the case of spot examination, when inserted grid, average area dose and organ dose and effective dose increased. Filter thickens the average area dose decreased, but the organ doses and effective dose were increased when use 0.2mmCu+1mmAl filter, decreased slightly. Noise and SNR measurements without inserting the gird, if you do not use the added filter was the lowest and when measure the distortion, 0.1mmCu+1mmAl filter was no difference of image quality in case insert grid was judged that when did not use occasion added filter that do not use grid, difference of image quality does not exist. Did not show a big difference, according to the grid and uses of the added filter sharpness, and resolution. Patient dose increases with factors that reduce the quality of the image so reckless grid and the use of the added filter when abdominal fluoroscopy examination should be cautious in using.

투시 검사 시 장비에 따른 환자와 시술자의 입사표면선량 연구

양해두,홍선숙,성민숙,하동윤,Yang, Hae-Doo,Hong, Seon-Sook,Seong, Min-Sook,Ha, Dong-Yoon 대한디지털의료영상학회 2013 대한디지털의료영상학회논문지 Vol.15 No.2

Purpose : Fluoroscopy equipment, depending on the type of changes that occur in the patient's position ESD and study the patient's scatter ray of ESD Practitioners considered a comparative analysis was to evaluate the correct dose. Materials and Methods : HITACHI four overtube type TU-8000 Flat Detector and Under tube C-Arm Philips' Multi Diagnost Eleva with Flat Detector type were measured by. Each devices is a measure of the patient's esd randophantom position in tabel unfors Xi multi funtion then fixed to the abdomen fluoroscopy and 10 seconds, spot was measured three times, practitioners of the incident surface dose by considering the patient's scatter ray of the table for each device in the average human stomach 21cm thickness acrylic phantom ($25cm{\times}25cm$) Place the practitioner position after position randophantom unfors Xi multi funtion in the thyroid and stomach 1 minute by a fixed one-time fluoroscopy and measured. Results : 10 seconds and the patient perspective of the c-arm ESD 1.2 times smaller on the AP and oblique measurements were measured in the 6-13 times smaller. spot positions to changes in the measured three times on the AP of the abdomen, ESD is 18 times smaller c-arm measurements and the oblique measurement was 19-30 times smaller. And 1 minute at practitioners fluoroscopy esd in the thyroid 2.12 times the c-arm, chest 1.75 times less the dose was measured. On the AP, depending on the device, but the lack of dose difference oblique positions of the two devices depending on changes in the area due to changes in both the AP than on the dose increased, the difference in dose between the two devices, the maximum difference was approximately 27 times. Conclusion : Fluoroscopic equipment at the time of inspection in accordance with changes in dose according to the patient and the patient's positions changes, because the area of the scatter ray considering the change of dose measurements be made, and study of the equipment according to the characteristics of the efficiency and the exposure of the patient and practitioner is considered smooth study equipment manufacturers that can be done is to build the system and think that is also important. Various fluoroscopy when you check future changes in many factors of change in dose for the equipment in the laboratory system by considering the scatter ray radiation shielding for the management to take advantage of reckless undertube have been utilized as more exposure Reduction activities can help is considered as the direction.

전통 약용식물 및 각종 식물의 항암 효과에 대한 연구 (III)

현진원,임경화,성민숙,강삼식,백우현,배건우,조현,김형자,우은란,박호군,박재갑,양용만,Hyun, Jin-Won,Lim, Kyoung-Hwa,Sung, Min-Sook,Kang, Sam-Sik,Paik, Woo-Hyun,Bae, Kun-Woo,Cho, Hyun,Kim, Hyoung-Ja,Woo, Eun-Rhan,Park, Ho-Koon,Park, Jae-Gah 한국생약학회 1996 생약학회지 Vol.27 No.2

Antineoplastic activity against human gastric and colon carcinoma cell lines was tested in eighty-three species of Korean plants including Korean medicinal plants which have been frequently used in oriental herb prescriptions. The plant materials were extracted with methanol and the cytotoxic activity was tested using a calorimetric tetrazolium assay (MTT assay). Twenty-six plant extracts against gastric carcinoma cell line, eighteen extracts against colon carcinoma cell line and fourteen plant extracts against both carcinoma cell lines showed antineoplastic activity at the concentration of less than $100{\mu}g/ml$. The effective components from four species have been isolated and reported.

전통 약용식물 및 각종 식물의 항암효과에 대한 연구

현진원,임경화,신진이,성민숙,원용진,김영식,강삼식,장일무,우원식,백우현,김형자,우은란,박호군,박재갑,Hyun, Jin-Won,Lim, Kyoung-Hwa,Shin, Jin-E,Sung, Min-Sook,Won, Yong-Jin,Kim, Yeong-Shik,Kang, Sam-Sik,Chang, Il-Moo,Woo, Won-Sick,Paik, Woo-Hyun 한국생약학회 1994 생약학회지 Vol.25 No.2

Antineoplastic activity against human gastric and colon carcinoma cell lines was measured in 100 extracts from 90 plants using MTT (3-[4,5-dimethyl thiazo-2-yl]-2, 5-diphenyl tetrazolium bromide) method. Four extracts from four plants have been reported to have antineoplastic effect. Extracts from remaining 86 plants failed to show significant cytotoxic effect at the concentration of less than $230\;{\mu}/ml$.

투시 조영 검사 시 환자 선량 관리를 위한 진단참고선량 구축에 관한 연구 (UGI, Esophagography 기준)

홍선숙,박은성,조준영,성민숙,양한준,Hong, Sun-Suk,Park, Eun-Seong,Cho, Joon-Yeong,Seong, Min-Suk,Yang, Han-Joon 대한디지털의료영상학회 2012 대한디지털의료영상학회논문지 Vol.14 No.1

This round of tests in patients with UGI and Esophagography data collected by national and international reference levels based on the original set of guidelines and fluoroscopy, through the provision of medical radiation exposure reduction and further optimization of Defense to realize that is intended. 359 names in our hospital underwent Esophagography 302 patients who underwent UGI average fluoroscopy time and number of images to calculate the average 21 cm Acryl phantom dose for 10 seconds and 20 seconds, average area dose and the area dose of 1 spot image, 5 spot consecutive images by measuring the patient dose and third quartile of the mean area dose was set seonryangin reference dose. Esophagography average patient dose was set to 30.05 $Gy{\cdot}cm^2$, DRL was set at a 25.37 $Gy{\cdot}cm^2$. Average dose of UGI patients were selected as 45.33 $Gy{\cdot}cm^2$, DRL was set at a 34 $Gy{\cdot}cm^2$. UGI patients with established average dose recommended in the 2008 national recommendation from the UGI examination with a dose of less than 49.7 $Gy{\cdot}cm^2$ seonryangin is evaluated. This Note examines the dose of self-aware through education recognizes the importance of dose reduction and examine if their efforts and further reduce patient dose could achieve optimization of the medical exposure is considered.

광역동치료와 내시경적역행성 담관배액관 삽입술의 병행적 시술요법에 대한 폐쇄성 진행형 담관암의 치료효과 비교 분석

엄준용,노현아,박은성,김관태,성민숙,하동윤 대한영상의학기술학회 2011 대한영상의학기술학회 논문지 Vol.2011 No.-

대조도-상세 유방 Phantom을 이용한 유방촬영장비의 화질평가에 대한 고찰

김민정,주미화,이희정,성민숙,하동윤 대한영상의학기술학회 2011 대한영상의학기술학회 논문지 Vol.2011 No.-

투시 검사 시 체위 변화에 따른 입사표면선량의 평가 연구

양해두,홍선숙,박은성,성민숙,하동윤,Yang, Hae-Doo,Hong, Seon-Sook,Park, Eun-Seong,Seong, Min-Sook,Ha, Dong-Yoon 대한디지털의료영상학회 2011 대한디지털의료영상학회논문지 Vol.13 No.4

This study intends to investigate patients' exact exposure doses by comparatively measuring ESD (Entrance Surface Dose) with the DAP meter, which excludes scattered rays, and ESD with the Xi multifunction meter, which includes scattered rays, by posture changes for Esophagography test and UGI test. The materialwere examined through Sonialvision-SafireII SPEC overtube system. ESD was measured by using the DAP meter, and as a tool to measure ESD including scattered rays on the plane of incidence of human phantom, the Xi multifunction meter was used. The average fluoroscopic time of Esophagography test was 4.192 minutes and the average number of images was 47.7, while the average fluoroscopic time of UGI test was 6.881 minutes and the average number of images was 37.8. The ratios of the incident dose of DAP meter and the ESD of Xi meter were calculated bydividing the fluoroscopic time and the number of images by each posture change. As for Esophagography test, the dose increased by 21.6~55.5% in the fluoroscopic test and by 4.8~24.7% in the spot test. In the front spot test, however, the does increased by as little as 5.3%. As for UGI test, the dose increased by 21.1~49.5% in the fluoroscopic test and by 10.1~34.9% in the spot test. It is expected that measuring doses in consideration of scattered rays by posture changes will be an important index in evaluating and managing patients' exact exposure doses for each test above. Furthermore, it is judged that this sort of study is inevitable and desirable to reduce patients' exposure doses after all.

소아의 식도 상복부위장관조영검사에서 생식선 차폐 유무에 따른 생식선량에 관한 연구

노현아(Hyun-A Noh),김민정(Min-Jeong Kim),박은성(Eun-Seung Park),성민숙(Min-Sook Sung),하동윤(Dong-Yoon Ha) 대한영상의학기술학회 2012 대한영상의학기술학회 논문지 Vol.2012 No.-

목적: 본 연구는 소아의 하복부 전체를 감싸는 랩스커트 형식의 차폐도구를 제작하여 소아의 식도조영검사와 상복부위장관조영검사에서 실험을 통해 생식선 차폐 유무에 따른 생식선의 흡수선량의 변화를 알아보고, 이를 줄일 수 있는 방안을 알아보고자 하였다. 방법: 2011년 1월부터 3월까지 본원에서 식도조영검사와 상복부위장관조영검사를 시행한 소아 50명을 대상으로 검사 중 평균 투시시간과 저격촬영의 수를 알아보았다. 파악된 평균 투시시간은 331.5초와 촬영된 영상은 18장이었으며 이를 적용하여 소아팬텀과 유리선량계를 이용하여 생식선이 포함되지 않도록 조사영역을 설정한 후 생식선 차폐 유무에 따른 생식선의 흡수선량을 비교하였다(협조군). 또한 협조가 어려운 소아를 고려하여 위의 파악된 투시시간과 저격촬영의 수의 1/10의 조건으로 생식선이 포함되도록 조사영역을 설정한 후생식선 차폐 유무에 따른 생식선의 흡수선량을 비교하였다(비협조군). 결과: 1. 협조군의 생식선 흡수선량 결과 협조군의 경우 생식선 차폐 유무에 따른 흡수선량 결과, 차폐를 시행하였을 경우 난소 99.5 µGy, 자궁 84 µGy, 전립선 33 µGy, 정낭 15 µGy로 나타났다. 차폐를 하지 않았을 경우 112.5 µGy, 자궁 86.5 µGy, 전립선 34 µGy, 정낭 28 µGy로 생식선 차폐 시행으로 난소, 자궁, 전립선에서의 선량 변화는 미미했으나, 정낭의 경우 약 46.4%의 선량감소를 보였다. 2. 비협조군의 생식선 흡수선량 결과 비협조군의 경우 생식선 차폐 유무에 따른 흡수선량 결과, 차폐를 시행하였을 경우 난소 262 µGy, 자궁 201.5 µGy, 전립선 67 µGy, 정낭 40.5 µGy로 나타났다. 차폐를 하지 않았을 경우 난소 767 µGy, 자궁은 512 µGy, 전립선은 787 µGy, 정낭 1429 µGy로 나타나차폐를 시행하였을 때보다 난소는 약 3배, 자궁은 약 2.5배, 전립선은 약 12배, 정낭은 약 35배나 높게 나타났으며 생식선 차폐 시행으로 무려 약 61~97%의 선량감소를 보였다. 결론: 소아의 식도 위장조영검사 시 생식선 피폭을 줄이기 위해서는 관심부위만 조사영역을 최소화하여 검사를 진행함과 동시에 생식선 차폐라는 보다 적극적이면서도 각별한 노력이 수반될 때 소아의 생식선 피폭을 줄일 수 있을 것으로 생각된다. Purpose: We studied pediatric absorbed dose while performing the pediatric esophagography and upper gastrointestinal series using gonadal shielding. Materials and Methods: We recorded pediatric absorbed dose of gonad during the esophagography and upper gastrointestinal series from January 2011 to March 2011. And we recorded average fluoroscopic time and spot images of 50 pediatric patients. It wes measured such as 331.5s and 18 images. We used pediatric phantom and radiophotoluminescent Glass Rod Detector (GRD). First area of field was to include the gonads (cooperation). Second area of field was not to include the gonads considering active pediatrics (noncooperation). By applying the measured values, we compared absorbed does of gonad according to existence of gonadal shielding. Results: 1. Cooperation : Absorbed dose of gonads was measured on 99.5 μGy (ovary), 84 μ Gy (uterus), 33 μGy (prostate) and 15 μGy (seminal vesicle) include gonadal shielding. On the contrary without gonadal shielding, absorbed dose was measured on 112.5 μGy (ovary), 86.5 μGy (uterus), 34 μGy (prostate) and 28 μGy (seminal vesicle). Result of comparison of the absorbed dose seminal vesicle with gonadal shielding was reduced more than without that (46.4%). 2. Noncooperation : Absorbed dose of gonads was measured on 262 μGy (ovary), 201.5 μGy (uterus), 67 μGy (prostate) and 40.5 μGy (seminal vesicle) include gonadal shielding. On the contrary without gonadal shielding, the absorbed dose was measured on 767 μGy (ovary), 512 μGy (uterus), 787 μGy (prostate) and 1429 μGy (seminal vesicle). Result of comparison of absorbed dose with gonadal shielding was reduced more than without that (61~97%). The absorbed dose of ovary, uterus, prostate with shielding was reduce more than 4.5~12 times.Conclusion: Operators should examine pediatric fluoroscopy examinations to reduce patient’s dose by minimizing the area of field and using gonadal shielding for gonadal dose reduction.