The data inspector tool is opened using the button
and initially shows the dialog window illustrated below.
When the cursor is moved over the images, the information about the cursor location (in pixels, and mm from the coordinate system origin) and the pixel value at that location is continuously updated. A locator is shown in the image, marking the last position where the left mouse button was clicked into the image. For the dynamic images the frame start and end together with the mid frame time is displayed in the Time section. The distance from the locator to the current cursor position is continuously updated. If the Show distance line box is checked, a line indicates the measured distance. If the Show value probe box is checked, the pixel value is also shown close to the cursor and the units displayed. If one of the SUV option is selected in the Unit list while Show value probe box is enabled, the selected e.g. g/ml{SUBbw} is automatically calculated and displayed for each pixel. Note that in order to calculated the SUV, the subject weight and size as well as the injected dose are requested.
The >> button extends the dialog window to show more information
Using the TAC tab the time-activity curve of single pixels can be inspected (for dynamic studies only) and sent to the kinetic modeling tool. It gets updated as soon as the user clicks at a pixel. With the Append box enabled, each click in the image adds a new pixel time activity curve to the TAC tab. All the selected pixels TAC can be send to PKIN using one of the available buttons. With the Data with slice-wise timing box enabled the pixel-wise TAC uses timing of the individual slice for the TAC transfer to the kinetic tool.
The Profiles tab displays the horizontal and vertical profiles at the current location of the locator.
On the 3D plot & histogram tab a 3D plot and the histogram of the slice values are shown, whereas the SUV tab allows inspecting the pixel values in SUV rather than kBq/cc, provided that all activity information is available. The SUV tab is explained in the next section.
The VOI Settings tab allows quick settings for the keyboard-driven definition of the Peak VOIs and isocontouring VOIs. The functionality is described in a dedicated section.