2Department of Plastic Surgery, Gazi University School of Medicine, Ankara-Turkey DOI : 10.5505/tjo.2019.1966 OBJECTIVE
The TiLOOP Bra mesh is a breast-implant-surrounding material that supports the pectoralis muscle and keeps the implant stable in the subpectoral area during breast reconstruction surgery. This study aimed to investigate the dosimetric effect of TiLOOP Bra mesh on dose distribution of radiotherapy in patients requiring postoperative treatment.
METHODS
The metal oxide semiconductor field effect transistor (MOSFET) and nanoDot optically stimulated luminescence
dosimeter (OSLD) were used for dose measurements at different depths in solid phantoms.
The measurements were performed above and below the mesh, and at 1 cm deep to the mesh for 6 MV
photon energy. The relative dose differences were obtained by measuring doses using the dosimeters and
comparing the results with calculated values in Eclipse TPS (Treatment Planning System). The relative
dose differences between the cases where the mesh had been present and where the mesh had been
removed were evaluated.
RESULTS
The results were found less than 1%. The findings showed that the TiLOOP Bra mesh used in breast
surgery did not affect the dose calculations for radiotherapy. In addition, there were no metallic artifacts
on computed tomography image.
CONCLUSION
Therefore, the quality of the computed tomography image was not affected by the TiLOOP Bra mesh,
and it was not necessary to correct the artifact and change the HU (Hounsfield Unit) value in TPS.