TY - JOUR
T1 - Co-registration of radiotherapy planning and recurrence scans with different imaging modalities in head and neck cancer
AU - Kristensen, Morten Horsholt
AU - Rønn Hansen, Christian
AU - Zukauskaite, Ruta
AU - Johansen, Jørgen
AU - Samsøe, Eva
AU - Maare, Christian
AU - Holm, Anne Ivalu Sander
AU - Eriksen, Jesper Grau
PY - 2022/7
Y1 - 2022/7
N2 - MRI (magnetic resonance imaging) scans are frequently used in follow-up after radiotherapy for head and neck cancer. With the overall aim of enabling MRI-based pattern of failure analysis, this study evaluated the accuracy of recurrence MRI (rMRI) deformable co-registration with planning CT (computed tomography)-scans (pCT). Uncertainty of anatomical changes between pCT and rMRI was assessed by similarity metric analyses of co-registered image structures from 19 patients. Average mean distance to agreement and Dice similarity coefficient performed adequately. Our findings provide proof of concept for reliable co-registration of pCT and rMRI months to years apart for MRI-based pattern of failure analysis.
AB - MRI (magnetic resonance imaging) scans are frequently used in follow-up after radiotherapy for head and neck cancer. With the overall aim of enabling MRI-based pattern of failure analysis, this study evaluated the accuracy of recurrence MRI (rMRI) deformable co-registration with planning CT (computed tomography)-scans (pCT). Uncertainty of anatomical changes between pCT and rMRI was assessed by similarity metric analyses of co-registered image structures from 19 patients. Average mean distance to agreement and Dice similarity coefficient performed adequately. Our findings provide proof of concept for reliable co-registration of pCT and rMRI months to years apart for MRI-based pattern of failure analysis.
KW - CT-MRI
KW - Deformable Image Registration
KW - Failure
KW - Head and neck squamous cell carcinoma
KW - Validation
UR - http://www.scopus.com/inward/record.url?scp=85133924985&partnerID=8YFLogxK
U2 - 10.1016/j.phro.2022.06.012
DO - 10.1016/j.phro.2022.06.012
M3 - Letter
C2 - 35844257
AN - SCOPUS:85133924985
SN - 2405-6316
VL - 23
SP - 80
EP - 84
JO - Physics and Imaging in Radiation Oncology
JF - Physics and Imaging in Radiation Oncology
ER -