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

Morten Horsholt Kristensen*, Christian Rønn Hansen, Ruta Zukauskaite, Jørgen Johansen, Eva Samsøe, Christian Maare, Anne Ivalu Sander Holm, Jesper Grau Eriksen

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

Abstract

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.

OriginalsprogEngelsk
Sider (fra-til)80-84
Antal sider5
TidsskriftPhysics and Imaging in Radiation Oncology
Vol/bind23
DOI
StatusUdgivet - jul. 2022

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© 2022 The Authors.

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