External dose distribution of radioisotops on nuclear medical application

In this study external dose measurment are investigated after performed radiopharmaceutical (radiopharmasotic) to patient. This study was investigated on Nuclear Medicine Department at Bozok University Medical Hospital. Our study included 50 patients; 19 of them myocardial perfusion scintigraphy (MPS), 10 of them bone scintigraphy, 10 of them thyroid scintigraphy and 11 of them hyperthyroid scintigraphy. Averagely 620-740 MBq 99mTc-MIBI radiopharmasotic to the MPS patients, 740 MBq 99mTc-MDP (Methylene diphosphate) to the bone scintigraphy patients,185 MBq 99mTc- Pertechnetate (99mTcO4)- radiopharmasotics were gave by intravenous application and 1110 MBq radioiodine (I-131) by oral route. Then periodically, measurements were made by Geiger-Müller counter in specific time and distance range. Our results were compared with approved the ICRP's dose limatation and commented