VOI-based Image Cropping

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VOI-based Image Cropping

The bounding box of contour or object VOIs can be used for cropping image series to a sub-volume of interest. The example below illustrates the following situation:

1.A sphere VOI was placed on the brain part of a whole-body PET.

2.After activating the VOI action button the sphere was scaled to and ellipsoid enclosing the brain with some margin.

3.The Crop button was activated.

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When accepting the Confirmation dialog the resulting image series just includes the data volume defined by the bounding box of the ellipsoid.

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Note that if the Group panel is selected, the cropping volume is defined by the bounding box enclosing all selected VOIs.

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The cropping of images allows reducing the RAM requirements, and may focus data processing on the relevant parts of the image.