Guilherme Oberto Rodrigues

Guilherme Oberto Rodrigues

Institute of Cardiology of Rio Grande do Sul, Brazil

Title: Correlation between the BMI and the tecidual absorption of X-rays in patients undergoing to X-rays of thorax


Guilherme Oberto Rodrigues completed his graduation 25 years old at the Lutheran University of Brazil, did postgraduate in Hospital Administration and Health Care Business by Puntifícia Catholic University of RS (PUC-RS) and completed his MA in RS University Foundation of Cardiology (FUC) in 2011. Currently he is a doctoral candidate in the FUC, works as a researcher and coordinator Course Training in Radiology and is also director of the company Radiographer, Radiology and Diagnostic Imaging LTD in Porto Alegre / RS Brazil. He has published articles and presentations in several cities in Brazil and worldwide.


Objective: The study values the relation between Body Mass Index (BMI) and the thickness of the thorax with radiation got absorbed on the X-rays of thorax. Materials and methods: Cross study with 228 patients, who carried out X-rays of the thorax in the posteroanterior (PA) and lateral (LAT) projections, in a hospital specialized in cardiology. Doses were determined by ionization chamber and they were determined by camera of ionization. The data were analyzed in a program Statistical Package Science Social (SPSS) 17.0. Results: the patients were 57±16 years old, 51% were women and the BMI was 27.36±5.18 kg/m2 .The averages of the projections AP and S were: 0.08 ± 0.04 and 0.22 ±0.13 mGy (p <0.001). The averages of the thicknesses thoracic in the projection (PA) was 21.65 ±2.28 cm and in the projection (LAT) was 27.48 ±2.61 cm. The average of milliampere seconds in PA projection was between 0.95±0.34 to 2.26±0.94; in the LAT projection the averages were between 2.68±1.40 to 6.00±3.61 Conclusion: This study showed that there is a positive correlation between the BMI and the thickness of the thorax and these are influential predictors in amount of the quantify radiation absorption.