Paper Information

Journal:   IRANIAN JOURNAL OF NUCLEAR MEDICINE   SUMMER 2015 , Volume 23 , Number 2 (SERIAL NUMBER 44); Page(s) 89 To 95.
 
Paper: 

THE IMPACT OF BODY MASS INDEX ON THE EXTERNAL DOSE RATE FROM PATIENTS TREATED WITH RADIOIODINE-131: A PRELIMINARY STUDY

 
 
Author(s):  LAHFI YEHIA*, ANJAK OSAMA
 
* DEPARTMENT OF PROTECTION AND SAFETY, ATOMIC ENERGY COMMISSION OF SYRIA, DAMASCUS, SYRIA
 
Abstract: 

Introduction: The relation between patient Body Mass Index (BMI) and the external dose rate of thyroid cancer patients treated with 131I has been investigated.
Methods: A total of 183 patients treated with 131I were selected randomly and divided according to their administrated activity into three groups: 3.7GBq, 5.5GBq and 7.4GBq. They were also stratified into three groups according to their BMI values namely normal, overweight and obesity. A telescopic radiation survey meter was used to measure the dose rate at 1 meter from patient neck level. The measurement was effectuated after 1, 24 and 48 hours post dose administration.
Results: Our findings showed that regardless the patient sex, age, and administrated dose, the external dose rate values in normal BMI range patient group were higher by 11% (as an average) as compared to overweight and obesity groups when the dose administrated was 150 and 200 mCi while it was higher by 49% for patient received 100 mCi.
Conclusion: The BMI patient value may be taken into account in the radiation protection optimization process by the physicist during isolation period and general public after patient discharge.

 
Keyword(s): RADIATION PROTECTION, BODY MASS INDEX (BMI), I-131, THERAPY
 
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