Dosimetria de pacientes e médicos em intervenções coronárias percutâneas em Recife, Pernambuco, Brasil

do Socorro Rocha da Silva, Maria; Khoury, Helen Jamil; Borrás, Cari; Oliveira, André Ferrão; de Paiva Vianna, Hugor Ferreira; de Oliveira, Flavio Roberto Azevedo; Japyassú, Flavio Adolpho Aranha; Mota, Flávio Braga
March 2011
Radiologia Brasileira;mar/abr2011, Vol. 44 Issue 2, p90
Academic Journal
Case Study
Objective: The present study was aimed at estimating the values of radiation doses received by physicians and patients during interventional cardiology procedures performed at a public hospital in the city of Recife, Pernambuco, Brazil. Materials and Methods: Measurements were made in two cardiologists with more than ten years of experience and in 31 adult patients, with 22 of them being clinically followed-up after the procedure. The individual irradiation parameters were documented. Results: The values for maximum patients skin dose ranged between 612 and 8,642 mGy, achieving more than 2,000 mGy in 53% of the patients; such dose values may cause deterministic effects. As regards the physicians, the mean effective dose per procedure was 11 μSv, and the highest mean equivalent doses in the limbs were 923 μSv in the left foot, 514 μSv in the right foot, 382 μSv in the left hand, and 150 μSv in the left eye. Depending on the number of procedures, the doses received by the physician may exceed the dose limits established by the Brazilian and international standards. Conclusion: The obtained results indicate the necessity of adopting strategies for optimizing the radiological protection for both patients and physicians.


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