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DPTools version 5
Chapter III: Calculating dynamic images
Calculating dynamic series is found under the ‘Dynamic / Activation’ tab on the left of
the screen.
III.A. – Perfusion
Before loading trace images, you need to select the correct image format.
III.A.a. – choosing the type of image (T1/T2/CT) and loading
The perfusion calculations are based on the evolution of the signal in time. This signal
evolves differently depending on the method you use, MRI T1 or T2, or CT. You have to
choose this method (MRI T1-w or T2-w, or CT ) before loading the perfusion images by
RC on the ‘Contrast’ button on the top left of the screen until the right option appears.
Then you can load your images as described in section I.B.b.
III.A.b. – Spatial Coregistration
The algorithm of space adjustment used is the one by Woods. It allows for reduction of
side-effects due to movement by the patient.
To apply the adjustment, double-click on the Graph. A
registration graph will appear in the underlying
window.
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