FCH

The tumor is well delineated in the FCH data but needs a restriction.

▪Set Thresholding segmentation with criterion >=0.

▪Enable Restrict to VOI box and activate Define VOI button.

▪From PMOD database load the VOI Tumor_Choline(MRI_space) .

▪Remove the Contralat VOI. Confirm with OK and click into the Tumor VOI.

▪Activate the Segmentation button

▪Add Segment to the Segments list.

▪Set Segments 3D rendering properties: set Surface as Rendering Type and surface Color to red.

▪Render the SR segment with the Render selected button

FDG

The FDG data is used to obtain the outline shape of the brain.

▪First smooth the FDG data with a 6mm Gaussian. Save the smoothed FDG data.

▪Apply a THRESHOLD segmentation to the smoothed FDG study with a value of 7.9.

▪Activate the Segmentation button.

▪Add Segment to the Segments list.

▪Set Segments 3D rendering properties: set Surface as Rendering Type and surface Color to yellow.

▪Render the current segment in append mode by selecting the pushpin and subsequently the Render selected button.

▪Set blended transparency using a value of 0.7.

MRI

MRI slices can be included for a better anatomical understanding.

▪On the 3D Rendering page, Input tab select the MRI study.

▪In the object tree select Planes and then activate Orthogonal for the Add planes. The three orthogonal MRI planes are shown.

▪Switch off the y and the x plane for display in the scene. Only axial MRI slice is shown.

▪Select Transparent mode (selection right to z-plane button)

▪Define the location of the plane using the navigator window, pointing at the location of interest. The scene gets updated accordingly.