Article
Dose evaluation for paediatric chest x-ray examinations in Brazil and Sudan: low doses and reliable examinations can be achieved in developing countries
Registro en:
MOHAMADAIM, K. E. M. Dose evaluation for paediatric chest x-ray examinations in Brazil and Sudan: low doses and reliable examinations can be achieved in developing countries. Phys. med. biol., London, v. 49, n. 6, p. 1017-1031, 2004.
10.1088/0031-9155/49/6/012
Autor
Mohamadain, K. E. M.
Rosa, L. A. R. da
Azevedo, A. C. P.
Guebel, M. R. N.
Boechat, M. C. B.
Habani, F.
Resumen
The authors are indebted to the Radiological Protection Centre of Saint Georges’ Hospital
(London) for the authorization of use of the DoseCal software for patient dosimetry CAPES, The British Council, UFRJ, Third World Organization for Women in Science, International Centre
for Theoretical Physics (Italy), FIOCRUZ, CNEN Radiation protection in paediatric radiology deserves special attention since
it is assumed that children are more sensitive to radiation than adults. The
aim of this work is to estimate the entrance skin dose (ESD), the body organ
dose (BOD) and the effective dose (E ) for chest x-ray exposure of paediatric
patients in five large units, three in Sudan and two in Brazil, and to compare
the results obtained in both countries with each other and with other values
obtained by some European countries. Two examination projections have been
investigated, namely, postero-anterior (PA) and antero-posterior (AP). The age
intervals considered were: 0–1 year, 1–5 years, 5–10 years and 10–15 years.
The results have been obtained with the use of a software called DoseCal.
Results of mean ESD for the age interval 1–5 years and AP projection are:
66 μGy (Instituto de Pediatria e Puericultura Martag˜ao Gesteira—IPPMG
Hospital), 41, 86 and 68 μGy (Instituto Fernandes Figueira—IFF Hospital),
161 μGy (Omdurman Hospital), 395 μGy (Khartoum Hospital) and 23 μGy
(Ahmed Gasim Hospital). In the case of the IFF Hospital, the results refer,
respectively, to rooms 1, 2 and for the six mobile equipments. The reference
dose values given by the European Guidelines were exceeded in the Khartoum
Hospital whilst in all the other hospitals results obtained were below CEC
reference values and comparable with the results found in Sweden, Germany, Spain and Italy. The mean E for the same age interval was 11 μSv in the
IPPMG, 6, 15 and 11 μSv in the IFF, respectively for rooms 1, 2 and the 6
mobiles, 25 μSv in the Omdurman Hospital, 45 μSv in the Khartoum Hospital
and 3 μSv in the Ahmed Gasim Hospital. These are some examples of the
large discrepancies that have been detected in this survey.