Estimación rápida de la dosis absorbida por los órganos durante una tomografía con el escáner Discovery ST8

Abstract

In this work, estimated the average dose that the organs of a typical patient would receive when irradiated with the "Discovery ST8" tomograph of the SOLCA - Matriz Hospital. First, the irradiation associated with the protocols used for the acquisition of images was analyzed. In the region of the head doses between 12 and 25mGy are delivered; the lenses of the eyes receive the lowest dose, while the thyroid receives the largest. In the region of the thorax, the received doses vary between 5.2 and 9.6mGy, in this region the breasts receive the lowest dose while the lungs receive the highest. In the region of the pelvis, the colon receives the lowest dose between 4.6 and 8.1mGy, in addition, in the case of men, the testicles receive the highest dose between 14.0 and 8.0mGy, while, in women, the urinary bladder is the one that receives the highest dose between 13 and 7.2mGy. Second, when irradiating the whole body, the doses are between 4.7mGy for the skin and 29mGy for the thyroid, in addition, in all regions, the same irradiation conditions of a protocol deliver higher doses than the others.