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Abstract #3220

Structural changes in a rat model of traumatic brain injury and challenges of preclinical registration in the presence of lesions

Maria Yanez Lopez1, Nicoleta Baxan2, Cornelius Donat1, Pete Hellyer3, Mazdak Ghajari4, Magdalena Sastre1, and David Sharp1

1Medicine, Imperial College London, London, United Kingdom, 2Biological Imaging Centre, Imperial College London, London, United Kingdom, 3Neuroimaging, King's College London, London, United Kingdom, 4Dyson School of Design Engineering, Imperial College London, London, United Kingdom

The aim of this work was to develop an automated pipeline to study structural changes in a rat model of TBI using T1/T2-weighted images. Our results show that the CCI model causes focal alterations in grey matter in the proximity of the injury, with a visible edema 14 days after injury in T2-weighted images, plus damage in the white matter (corpus callosum). These hyper-intense lesions complicate registration and require optimisation of the affine step, together with skull stripping of the brain of injured rats.

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