AIMS: The @entity1374 after radiotherapy has led to evaluate the dose received by thyroid during nasopharynx and @entity0 irradiation. This evaluation was facilitated by in vivo dosimetry. The aims of this work were to evaluate the thyroid dose and to compare released dose at the reference point in the two localizations. @entity1 AND METHODS: A total of 30 @entity1 were evaluated: 18 @entity1 with @entity189 and 12 @entity1 with @entity0 were included in the final analysis. In the first group, the total thyroid but the isthmus was irradiated. On the other hand, in the second group, only one thyroid lobe was included into the target volume. All @entity1 have been treated by gamma rays of @entity1953 60 and the thyroid absorbed dose was measured by semiconductor dosimeters (Scanditronix DPD6). These dosimeters were calibrated in the same geometric conditions of the irradiation. RESULTS: The measured absorbed dose of the thyroid parenchyma was equal to the calculated absorbed dose at the target that has been specified at a depth of -3 cm. Under the block, the isthmus received 5.1 +/- 0.9 Gy (9.9 +/- 1.8%) in @entity189 irradiation. However, in @entity0 irradiation, the distal thyroid lobe and the isthmus received 2.9 +/- 0.7 Gy (6.55 +/- 1.56%) and 3.69 +/- 0.77 (8.39 +/- 1.76%), respectively. CONCLUSIONS: This study shows that the thyroid received a dose equal to the prescribed dose in both nasopharynx and @entity0 @entity1 . It is recommended to follow the function of the thyroid gland in these @entity1 .

[Absorbed dose evaluation of thyroid during nasopharynx and XXXX irradiation by in vivo dosimetry].

@entity1 :: ('9606', 'Species') :: ['patients', 'PATIENTS'] @entity0 :: ('MESH:D001943', 'Disease') :: ['breast carcinoma', 'breast cancer'] @entity189 :: ('MESH:D002277', 'Disease') :: ['nasopharynx carcinoma'] @entity1953 :: ('MESH:D003035', 'Chemical') :: ['cobalt'] @entity1374 :: ('MESH:D013959', 'Disease') :: ['thyroid dysfunction']
@entity0 :: (MESH:D001943,Disease) :: ['breast carcinoma']
