Co-registration of radiotherapy planning and recurrence scans with different imaging modalities in head and neck cancer

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 (compute...

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Detalles Bibliográficos
Autores principales: Kristensen, Morten Horsholt, Hansen, Christian Rønn, Zukauskaite, Ruta, Johansen, Jørgen, Samsøe, Eva, Maare, Christian, Holm, Anne Ivalu Sander, Eriksen, Jesper Grau
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284447/
https://www.ncbi.nlm.nih.gov/pubmed/35844257
http://dx.doi.org/10.1016/j.phro.2022.06.012
Descripción
Sumario: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.

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