• 대한방사선기술학회지:방사선기술과학
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• 제41권6호
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• pp.567-572
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• 2018

Radiation therapy is one of the beneficial choices in the treatment of cancer. This is a comparison of TPS(Treatment Planning System) and GEANT4-DICOM, which should be preceded by the best radiation therapy. A treatment plan for prostate cancer was established with Eclipse and the point doses 366.1 cGy, 189.1 cGy, 213.4 cGy, 127 cGy, 105.7 cGy of any five prostate, bladder, rectum, right femoral head and left femoral head were identified. GEANT4-DICOM simulation showed that the results of Eclipse and ${\pm}2%$ dose error were confirmed. The monthly X-ray output agreement management value recommended by TG-142 is ${\pm}2%$, which means that the experimental results can be meaningful. In conclusion, GEANT4-DICOM is an infinite way to obtain more extended dose information once the time constraints are overcome in the simulation.

• 한국의학물리학회지:의학물리
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• 제29권4호
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• pp.123-136
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• 2018

The complex dose distribution and dose transfer characteristics of intensity-modulated radiotherapy increase the importance of precise beam data measurement and review in the acceptance inspection and preparation stages. In this study, we propose a process map for the introduction and installation of high-precision radiotherapy devices and present items and guidelines for risk management at the acceptance test procedure (ATP) and commissioning stages. Based on the ATP of the Varian and Elekta linear accelerators, the ATP items were checked step by step and compared with the quality assurance (QA) test items of the AAPM TG-142 described for the medical accelerator QA. Based on the commissioning procedure, dose quality control protocol, and mechanical quality control protocol presented at international conferences, step-by-step check items and commissioning guidelines were derived. The risk management items at each stage were (1) 21 ionization chamber performance test items and 9 electrometer, cable, and connector inspection items related to the dosimetry system; (2) 34 mechanical and dose-checking items during ATP, 22 multileaf collimator (MLC) items, and 36 imaging system items; and (3) 28 items in the measurement preparation stage and 32 items in the measurement stage after commissioning. Because the items presented in these guidelines are limited in terms of special treatment, items and practitioners can be modified to reflect the clinical needs of the institution. During the system installation, it is recommended that at least two clinically qualified medical physicists (CQMP) perform a double check in compliance with the two-person rule. We expect that this result will be useful as a radiation safety management tool that can prevent radiation accidents at each stage during the introduction of radiotherapy and the system installation process.

• 한국가정과학회지
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• 제1권1호
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• pp.81-93
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• 1998

The purpose of this study was to examin height, weight and body composition nutrient intakes and serum lipids for high school girls in urban and fishing area. The subjects consisted of 78(44 fishing and 34 urban) high school girls aged in average 17.3 and 17 years. Their dietary intakes were assesed for 1 day by means of 24 hours dietary recall method. Concentrations of serum lipids, percentage of body fat and volume of total body water were measured. The mean energy intake of the subjects were 1431 ㎉ in fishing and 1659 ㎉ in urban area. The subjects in fishing area(urban) consumed 58(67) g protein, 27(36) g lipid, 459(634) mg calcium, 676(945) mg phosphorous, 11(14) mg iron, 786(574) RE retinol, 2.8(3.6) mg tocopherol, 0.9(1.0) mg thiamin, 1.2(1.1) mg riboflavin, 16.9(20.5) mg niacin and 64.1(92.8) mg ascorbic acid, respectively. Energy, calcium, iron and tocopherol intakes were lower than the Korean RDA in both girls. The mean percentage of fishing girls were 19.8% and significantly lower than 25.6% in urban. These values seem to fall in the desirable range in fishing girls, but high school girls in urban is seemed to overweight. The mean saturated fatty acid(SFA), monounsaturated fatty acid(MUFA), polyunsaturated fatty acid(PUFA) and dietary cholesterol(Chol) intakes were 7.3 g, 8.1 g, 7.2 g and 263 mg for fishing girls were 13.1 g, 12.1 g, 9.1 g and 216 mg for urban girls respectively. The fat, SFA and MUFA intakes in fishing girls were significantly lower than urban girls. The P/M/S ratio was 0.9/1.1/1 for fishing, was 0.7/0.9/1 for urban. The mean serum triglyceride(TG), total cholesterol, HDL cholesterol, LDL-cholesterol concentrations were 77.7(61.8) mg/dl, 124.5(142.3) mg/dl, 59.3(22.4) mg/dl and 49.6(107.8) mg/dl in fishing girls(urban girls), respectively. All of these values seem to fall in the desirable range but HDL-chlesterol concentrations in fishing girls were significantly higher than urban girls and LDL-cholesterol concentrations in fishing girls were significantly lower than urban girls. There were positive correlations between body fat percent and total cholesterol or LDL-cholesterol concentration : negative correlations between between body fat percent and HDL-cholesterol concentration : positive correlation between fat intake and LDL-cholesterol concentration : negative correlations between serum HDL-cholesterol concentration and fat or SFA or MUFA intakes. (Korean J Human 1(1) : 81~93, 1998)

• Journal of Animal Science and Technology
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• 제53권5호
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• pp.451-459
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• 2011

생후 2개월령 한우송아지를 각 처리구별로 8두씩 배치하여 총 24두(3처리${\times}$ 8두)를 대상으로 대조구(한방제재 무첨가)와 T1구 (한방제재 0.3% 첨가), T2구(한방제재 0.5% 첨가구)로 나누어 배치하여 총 150일간 시험한 결과는 다음과 같다. 총 증체량과 두당 총 사료섭취량은 T1구가 각각 142.8 kg와 545.9 kg으로 다른 처리구보다 크게 높게 나타나 통계적인 유의차가 있었다(p<0.05). 혈액의 이화학적 성상에서 평균적으로 총 콜레스테롤 함량은 86.43~97.00 mg/dl 범위에 있었으며, TG는 13.26~13.86 mg/dl, GOT는 76.97~79.60 mg/dl, GPT는 19.54~20.97 mg/dl, WBC는 8.75~9.95 k/${\mu}{\ell}$, RBC는 10.14~11.91 M/${\mu}{\ell}$, 헤모글로빈은 10.74~11.20 g/$d{\ell}$로서 처리구간에 유의적인 차이는 없었다. 그러나 면역글로블린(IgG)은 시험구(6.05~6.02 mg/ml)가 대조구(5.74 mg/ml) 보다 높았고(p<0.05), 시험 월령이 경과함에 따라 점차 낮아지는 경향이었다. 시험기간 동안의 송아지 분변 조사에서, 시험개시후 시험 1~2개월령에 발병원인균의 수가 가장 많았으나, 시험이 경과함에 따라 낮아지는 경향이었고, 분변중의 기생충(Eimeria spp), 용혈성 대장균(E. Coli)와 바이러스(BVDV)는 대조구가 시험구보다 높은 경향을 보였고, 시험기간 동안의 설사 발병두수에서도 시험2구가 대조구보다 감소하는 경향이었으나 통계적인 유의차는 없었다(대조구 24두 ; T1구 9두 ; T2구 13두). 이상의 결과를 종합해보면, 한방제재 첨가는 송아지의 성장률 및 송아지설사 예방에 영향을 미치는 것으로 판단된다.

• 한국노년학
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• 제29권3호
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• pp.837-850
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• 2009

많은 선행연구는 대규모 역학조사를 통하여 노화와 함께 근육의 감소가 나타나는 현상을 규명하였고, 이를 근감소증(sarcopenia)으로 명명하였다. 근감소증이 사망률과 유병률에 직접적인 관련성을 나타내지 않는 것 같으나 근육의 감소는 근력의 저하, 체력의 약화, 활동성의 감소로 이어져 결국에는 독립적인 생활이 불가능해지며 신체장애를 가져오게 된다. 본 연구는 근감소증 예방을 위한 미용덤벨 운동의 효과를 살펴보는데 있다. 본 연구의 피검자는 S시 J구에 소재한 J노인복지관 운동프로그램에 참가하는 60-70대의 노인으로 통제군 19명, 운동군 8명으로 분류하였다. 미용덤벨 운동은 12주 동안 주2회의 빈도로 실시하여, 운동 전·후로 신체조성, 체력, 혈중지질 변인을 측정하였다. 12주간의 미용덤벨 전·후 체지방률(F=0.388, p=0.539)은 유의한 차이가 나타나지 않았으나, 체중(F=4.312, p=0.048), 체질량지수(F=4.532, p=0.043), 근육량(F=4.743, p=0.039)은 유의한 차이가 나타났다. 체력의 덤벨들기(F=1.103, p=0.304), 등 뒤에서 손잡기(F=0.214, p=0.648)는 유의한 차이가 나타나지 않았으나, 2분 제자리 걷기(F=33.638, p<0.001), 의자에서 일어섰다 앉기(F=14.575, p=0.001), 의자앉아 앞으로 굽히기(F=7.198, p=0.013), 244cm 왕복 걷기(F=14.890, p=0.001)는 유의한 차이가 나타났다. 혈중지질 변인의 총 콜레스테롤(F=0.030, p=0.864), 중성지방(F=0.142, p=0.710), 고밀도지단백(F=2.066, p=0.163), 혈당(F=0.125, p=0.727), 당화혈색소(F=0.945, p=0.340)는 유의한 차이가 나타나지 않았다. 노인에게 있어서 미용덤벨 운동은 신체조성 및 체력에 긍정적인 영향을 미치나 혈중지질 변인에는 그렇지 못한 것을 확인할 수 있었다.