Details

Autor(en) / Beteiligte

• Chen, Xiaohui
• Xu, Anjie
• Chen, Jiayan
• Hu, Weigang
• Peng, Jiayuan

Titel

Dosimetric Impact of Titanium Alloy Implant in Spinal IMRT Plan

Ist Teil von

• Zhongguo yi liao qi xie za zhi, 2023-01, Vol.47 (1), p.110

Ort / Verlag

China

Erscheinungsjahr

2023

Quelle

MEDLINE

Beschreibungen/Notizen

• The purpose of this study is to establish and apply a correction method for titanium alloy implant in spinal IMRT plan, a corrected CT-density table was revised from normal CT-density table to include the density of titanium alloy implant. Dose distribution after and before correction were calculated and compared to evaluate the dose deviation. Plans were also copied to a spinal cancer simulation phantom. A titanium alloy fixation system for spine was implanted in this phantom. Plans were recalculated and compared with the measurement result. The result of this study shows that the max dose of spinal cord showed significant difference after correction, and the deviation between calculation results and measurement results was reduced after correction. The method for expanding the range CT-density table, which means that the density of titanium alloy was included, can reduce the error in calculation.