Proceedings from the heat-oppressed brain: Neuroimaging data processing and visualisation

Adam Schwarz


"If the brain were so simple we could understand it, we would be so simple we couldn't." --Lyall Watson Medical imaging modalities such as Magnetic Resonance Imaging (MRI) routinely acquire multislice/3D data sets, sometimes as a time series to capture dynamic or functional changes. Consequently, strategies for both data reduction (to extract the functional parameter of interest, and/or in order that statistical tests and inference be tractable) and visualisation (to facilitate 3D localisation of functional parameters) are key issues. Although the need for effective visualisation of 3D medical data has been reflected in ongoing applications of computer graphics techniques to this end, the classical approach of 2D slices with overlays still provides a benchmark in terms of anatomical referencing and ease of interpretation. Nevertheless, the intrinsically volumetric nature of much medical imaging data lends itself naturally to emerging visualisation technologies such as volumetric or other autostereoscopic display technologies. Here I will provide an overview of MRI data acquisition and subsequent data processing, including functional and pharmacological MRI experiments. Standard and innovative approaches to the visualisation of (3+1)D MR data sets will be reviewed. Finally, opportunities for visualisation using advanced display technologies will be discussed.
Tuesday 16th March 2004, 14:00
Robert Recorde Room
Department of Computer Science