ROI Definition

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QIBA FDG-PET ROI Definition Workgroup

The goals of this workgroup are:

• 1) To survey the existing ROI capabilities and definitions on workstations being used for PET image interpretation.
• 2) To make recommendations for common ROI definitions to be implemented by all vendors.
• 3) To guide the implementation of the recommended definitions.

Items to consider include, but are not limited to:

• 2D vs. 3D ROI's
• ROI's defined in different orthogonal planes
• Meaning of circular ROI's (which pixels are included; is there weighting?)
• Threshhold capabilities
• ROI's on zoomed images

Timothy Turkington, PhD, ROI Definition Workgroup Chair, timothy.turkington@duke.edu