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[en] The application of radioactive tracers for placental localization has been introduced as the worthwhile diagnostic method in placenta previa. Recently 113mIn has been applied as the broad spectrum agent for the visualization of various organs. The advantage of 113mIn are a short half-life with 1.7 hours and no beta particle emission. During the period from May 1970 to August 1971, the placental scanning with 113mIn was carried out at Yonsei Medical Center on 19 cases of Korean pregnant females who had painless vaginal bleeding with suspicious placenta previa or other placental lesions, clinically. Followings are the results of placental scanning with Indium-113m. 1) Eight cases out of 19 cases were suggested as placenta previa and the remaining 11 cases were turned out to be normal placental location. 2) Among these 8 case of positive scanning, placenta previa totalis was 6 cases, placental previa partialis was 1 case and placenta previa marginalis was also 1 case. 3) Among 11 cases of normal placental localization, right side placenta was 7 cases and left side, 4 cases. The placental scanning with Indium-113m is thought to be one of the simple, safe and rapid method with high accuracy for clinical diagnosis of the placenta previa and placental localization
Journal
Journal of the Korean Radiological Society; ISSN 1738-2637; 
; v. 8(3); p. 169-174
; v. 8(3); p. 169-174
[en] Method of breaking the permanent radioactive equilibrium was used to study some physicochemical aspects of behaviour of impurity atoms in solid body (diffusion, transition to surface layers, removal from the surface). It was established that applied experimental method enabled to determine diffusion coefficients of impurity atoms in solid body. It was demonstrated by the case of diffusion of indium-113m atoms, appeared in metallic tin in result of electron capture
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