Dosimetric evaluation due to radiation in thyroid issued

The absorbed dose in the thyroid uptake studies is estimated, by analysis of the biokinetics of radiopharmaceuticals containing the I-131 (iodide) or Tc- 99m (pertechnetate) Using the MIRD formalism and Cristy-Eckerman representation for adult thyroid patients, demonstrated that the dose absorbed by the gland due to emissions of I-131(iodide) is self- dose and is given by 340.9 mGy / MBq; dosimetric contribution of organs that are part of its bio kinetics (excluding thyroid) is not significant in the estimated dose.The absorbed dose to the gland due to emissions of Tc-99mTc (pertechnetate) is 0.0234 mGy / MBq; 7.6 % are organ dosimetry contributions that are part of its biokinetics (excluding thyroid), and is very significant in the estimated doses to be ignore