TY - JOUR
T1 - Radiotherapy planning of spine and pelvis using single-energy metal artifact reduction corrected computed tomography sets
AU - Ignatius, Daliya
AU - Alkhatib, Zaid
AU - Rowshanfarzad, Pejman
AU - Goodall, Simon
AU - Ibrahim, Mounir
AU - Hirst, Andrew
AU - Croxford, Riley
AU - Dass, Joshua
AU - Sabet, Mahsheed
PY - 2023/4/1
Y1 - 2023/4/1
N2 - Metal artifacts produce incorrect Hounsfield units and impact treatment planning accuracy. This work evaluates the use of single-energy metal artifact reduction (SEMAR) algorithm for treatment planning by comparison to manual artifact overriding. CT datasets of in-house 3D-printed spine and pelvic phantoms with and without metal insert(s) and two treated patients with metal implants were analysed. CT number accuracy improved with the use of SEMAR filter: root mean square deviation (RMSD) from reference (without metal) reduced by 35.4 in spine and 98.8 in hip. The plan dose volume histograms (DVHs) and dosimetric measurements showed comparable results. SEMAR reconstruction improved planning efficiency.
AB - Metal artifacts produce incorrect Hounsfield units and impact treatment planning accuracy. This work evaluates the use of single-energy metal artifact reduction (SEMAR) algorithm for treatment planning by comparison to manual artifact overriding. CT datasets of in-house 3D-printed spine and pelvic phantoms with and without metal insert(s) and two treated patients with metal implants were analysed. CT number accuracy improved with the use of SEMAR filter: root mean square deviation (RMSD) from reference (without metal) reduced by 35.4 in spine and 98.8 in hip. The plan dose volume histograms (DVHs) and dosimetric measurements showed comparable results. SEMAR reconstruction improved planning efficiency.
U2 - 10.1016/j.phro.2023.100449
DO - 10.1016/j.phro.2023.100449
M3 - Article
C2 - 37266518
SN - 2405-6316
VL - 26
JO - Physics and Imaging in Radiation Oncology
JF - Physics and Imaging in Radiation Oncology
M1 - 100449
ER -