| Japanese |
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| Title | RI投与患者から公衆の受ける内部被曝線量の推定および許容保持量の試算 |
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| Subtitle | 原著 |
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| Authors | 西沢邦秀*, 小原健**, 古賀佑彦***, 前越久****, 折戸武郎**** |
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| Organization | *名古屋大学医学部アイソトープセンター, **名古屋大学医学部放射線医学教室, ***藤田学園名古屋保健衛生大学医学部放射線科, ****名古屋大学医学部付属診療放射線技師学校 |
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| Journal | 核医学 |
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| Volume | 12 |
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| Number | 6 |
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| Page | 631-636 |
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| Year/Month | 1975/12 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「緒言」治療あるいは診断の目的で非密封放射性同位元素(RI)を体内に投与された患者からの排泄物は環境汚染の原因となり, 外部被曝に加えて公衆の体内被曝を惹き起こす. 外部被曝に関して, 我々は前報において「外部被曝線量に基づくRI投与患者の特別病室収容基準」についての提案を行った. ところが内部被曝線量に基づくこの様な試みは未だない. そこで患者から公衆が被る内部被曝線量の推定を行い, この値と許容線量との比較から患者を収容する基準の試算を行った. 「考え方」外部被曝の場合と同様に, 条件が明らかでない場合にはより安全側に立ち, 起り得る最悪の条件で考えるという原則をこの場合にも引き続き採用する. RIを投与された患者はRIが完全に減衰するまで同じ部屋の中に居るものとする. 内部被曝は汚染された空気を呼吸することによってのみ生じ, 傷口からの汚染の浸潤とか授乳による乳児の内部被曝等はないものとする. |
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| Practice | 臨床医学：一般 |
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| English |
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| Title | Evaluation of Internal Absorbed Dose of Public Resulting from Radioactive Patient and Index of Radioactive Levels for Discharge |
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| Subtitle | Original Articles |
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| Authors | Kunihide NISHIZAWA*, Ken OHARA**, Sukehiko KOGA***, Hisashi MAEKOSHI****, Takeo ORITO**** |
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| Organization | *Radioisotope Center, Nagano University School of Medicine, **Department of Radiology, Nagano University School of Medicine, ***Department of Radiology, Fujita-Gakuen University School of Medicine, ****Radilogical Technician's School Affiliated to Nagano University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 12 |
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| Number | 6 |
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| Page | 631-636 |
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| Year/Month | 1975/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] The radioactive levels to accommodate a patient injected or prescripted radioisotopes to a special patient room were considered from the stand point of the internal absorbed dose of public resulting from the inhalation of the air contaminated by the excretion (sputa, urine, sweat and so on) of the radioactive patient. These levels are set such as the absorbed dose of public received from the patient is less than the dose limit of public 0.5-rem/year. These levels are discussed for the following cases that the patient returns to a usual room in hospital: The patient goes home from hospital. In the former, the limits are set such as the absorbed dose of the other patient in the same room is less than 10-mrem/week. In the latter, the limits are set such as the absorbed dose of family is less than 0.5/3-rem per one investigation. The radioactive levels are obtained by calculation for the eight redionuclides 51Cr, 59Fe, 75Se, 99mTc, 131I, 182Ta, 198Au and 203Hg in the two cases respectively. |
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| Practice | Clinical medicine |
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