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An MRI Application

Figures 1 and 2 show sagittal sections of MRI data from the National Institute for Mental Health (NIMH). This data is from an ongoing morphometric analyses at NIMH of the brains in monozygotic twin pairs[2]. Figure 1 shows the raw MRI image. Their initial image processing task is to subtract off the non-cerebral material in this image, resulting in Figure 2. They currently do this manually with a simple pixel eraser tool.

Figure 1: Raw data: sagittal MRI section

Figure 2: Cerebrum only, cleaned manually. (Orientation and contrast levels have been standardized, so this will not match exactly to the raw original.)

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stewart crawford-hines