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ST 3.3 –
Protección radiológica en medicina nuclear
RADIATION RISK TO PATIENTS FROM NUCLEAR MEDICINE
PROCEDURES IN CUBA
Brígido, Osvaldo
1
*
;
Barreras, Aldo
2
;
Montalván, Adelmo
1
; Hernández, José
2
1
Centro de Ingeniería Ambiental de Camagüey. Cuba.
2
Hospital Provincial Docente de Oncología "Marie Curie". Cuba.
* Responsible author, email: O.Brigido@ciac.cu
Population radiation dose estimation due to administration of radiopharmaceuticals in
Camagüey and Ciego de Ávila provinces was carried out using Medical Internal Radiation Dose
scheme (MIRD). Data were gathered on the type of radiopharmaceuticals used, the
administered activity, the numbers of each kind of examination, and the age and sex of the
patients involved during the period 2000 – 2005. The average annual frequency of examinations
was estimated to be 3.65 per 1000 population. The results show that imaging nuclear medicine
techniques of thyroid and bone explorations with 13.3 and 12.8%, respectively and iodide
uptake with 50% are the main techniques implicated in the relative contribution to the total
annual effective collective dose which averaged 95 man.Sv for the studied period. Radiation
risks for the Camagüey-Ciego de Avila population caused by nuclear medicine examinations in
the period studied were calculated: the total number of fatal and non-fatal cancers was 34.2 and
the number of serious hereditary disturbance was 7.4 as a result of 24139 nuclear medicine
procedures, corresponding a total detriment of 1.72 per 1000 examination.