18F 동위원소 피폭에 의한 금붕어 장관 평활근의 수축활성
Contractile Activity of Goldfish Intestine Exposed to 18F Isotope
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Goldfish were exposed to radioactive isotope 18F, which is used for positron emission tomography (PET). 18F is created when the oxygen in water combines with hydrogen on exposure to positrons accelerated by a cyclotron. The temporal change in intestine contractility was measured by physiograph after the exposure to 18F. The distance between the goldfish and 580mCi of 18F was approximately 4cm and the exposure was for 4hrs. The absorption level calculated from the distance, exposure time, and half-life of 18F was approximately 2Gy. The contractile activity of goldfish intestine was lowest on the first day and increased gradually to 100% of the control level by a period of between 5 and 36 days.
Abstract
Goldfish were exposed to radioactive isotope 18F, which is used for positron emission tomography (PET). 18F is created when the oxygen in water combines with hydrogen on exposure to positrons accelerated by a cyclotron. The temporal change in intestine contractility was measured by physiograph after the exposure to 18F. The distance between the goldfish and 580mCi of 18F was approximately 4cm and the exposure was for 4hrs. The absorption level calculated from the distance, exposure time, and half-life of 18F was approximately 2Gy. The contractile activity of goldfish intestine was lowest on the first day and increased gradually to 100% of the control level by a period of between 5 and 36 days.
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