Show Image Histogram

To view a histogram of the image or any subset of the image determined by an ROI, click the Show Histogram Add ROI button. Choose the image used to generate the histogram by selecting it from the Data Set drop-down menu. The portion of the image contributing to the histogram can be set under the ROI Controls by selecting an ROI from the drop-down menu.

Image Histogram
Image Histogram

Set Quantification Table Columns

To determine which quantitative fields will be displayed in the quantification table and stored to the iPACS, if applicable, go to the Operator tab on the main menu, then select Quantification Table List.

Set Quantification Table Columns
Set Quantification Table Columns

The available quantification values are described below:

Option Description
ROI Name of the ROI. You can left-click this field to enter comments.
Patient Patient’s name for the current study.
Series Specific data set in the study from which the data was calculated.
Modality Modality from which the data values for the row were calculated.
Color Color of the ROI as drawn in the display.
Voxels Total number of voxels contained in the selected ROI.
Volume Volume of the selected ROI in units of cubic millimeters.
Mean Arithmetic mean of values of voxels contained in the ROI.
StdDev Standard Deviation of values of voxels contained in the ROI.
Min Minimum value of all voxels contained in the ROI.
Max Maximum value of all voxels contained in the ROI.
Median Median value of all voxels contained in the ROI.
Sum Sum of all voxels contained in the ROI, sometimes interchangeable with ‘Uptake’
Unit Unit of voxels in the selected dataset.
Conc 10% Concentration (mean/volume) of the 10th Percentile of voxels contained in the ROI.
Conc 50% Concentration (mean/volume) of the 50th Percentile of voxels contained in the ROI.
Conc Peakregion Concentration (mean/volume) of the 3x3x3 cube of voxels with the greatest mean of all 3x3x3 cubes of voxels contained within the ROI. Referred to below as Highest-uptake region.
Conc Peakmax Concentration (mean/volume) of the 3x3x3 cube of voxels that has at its center the maximum voxel of the voxels contained in the ROI. Referred to below as SUVmax.
Conc Max Concentration (mean/volume) of the maximum voxel of the voxels contained in the ROI.
Conc Concentration (mean/volume) of all the voxels contained in the ROI.
Conc Unit Unit of voxels in the selected data set over volume (mm3).

Concentration Peaks

“Impact of the Definition of Peak Standardized Uptake Value on Quantification of Treatment Response”. Vanderhoek, et al. J Nuclear Medicine, 2012. Link.

Show Quantification Table

To display the quantification table, including all existing ROIs, click the Show Table button Show Table .

Show Quantification Table
Show Quantification Table

Export Quantification Table to Disk

To export the quantification table to disk as a comma-separated values (.csv) file, click the Export Table button Export Table .