9.1. Open Studies in PET Analysis tab

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Functionality is available in a separate module which is activated in the Pro edition for an extra fee
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To open a study:

Load studies to the DICOM Viewer.
Select a study containing at least one CT and one PET series.
Select one CT and one PET series by clicking the left mouse button while holding down the Ctrl key (or the Command key for macOS) on the keyboard.
Click the PET analysis button on the toolbar. To select the tab location (in the current window, in a separate window or in the full screen mode), click on the arrow on the right side of the button. To open the study in a new tab in the current window, click on the button PET analysis. The process may take some time.
Choose a windows arrangement template for the required number of series (see Sections 9.2.1 and 9.2.2).

The DICOM Viewer displays data in the following modes:

3D MIP (Maximum Intensity Projection) for the PET series (3D MIP mode);
Original CT series (CT mode);
Original PET series (PET mode);
Fused CT + PET series (Fusion (PET+CT) mode). The image displayed in the window is the same as in the fused series window (see Chapter 4).

The PET analysis window is shown in Fig. 9.1.

Figure 9.1: PET analysis window

9.1.1 Fuse series from the same study in the PET analysis tab

To fuse series of one study, proceed as follows:

Open the study in the PET analysis tab (see Section 9.1).
On the series panel of current study select the series required by left-clicking on them while holding down the Ctrl key (or the Command key for macOS).
Drag the series to the window you need. If the series may be dragged to this window, the cursor will have the shape of . If it is impossible to drag the series to this window, the cursor will have the shape of . In this case, choose another window or change the display mode in this window (Section 9.2.1). Release the mouse button. The series (fused series) will be opened in this window.
If needed, repeat the actions described in points 2-3 for other series.

9.1.2 Fuse series from diﬀerent studies in the PET analysis tab

The DICOM Viewer allows you to fuse series from diﬀerent studies in the PET analysis tab, e.g. to monitor the changes. If the studies diﬀer in the following parameters:

the patient’s name (not case sensitive) (tag (0010,0010));

the patient’s ID (tag (0010,0020));

the patient’s sex (tag (0010,0040));

the date of birth (tag (0010,0030))

such studies are considered to be carried out for diﬀerent patients. If you attempt to open them in the same tab, the following notiﬁcation will pop up: Seems that you are trying to add studies of diﬀerent patients. Would you like to continue? To add the study, click YES, to cancel click NO.

To fuse several series from diﬀerent studies, proceed as follows:

Open the series of the ﬁrst study in the PET analysis tab.

Go to the second tab with the list of studies and choose the second study.

Select the studies required by left-clicking on them while holding down the Ctrl key (or the Command key for macOS).

Holding down the left mouse button, drag the series to the PET analysis tab (surrounded by the red frame in Fig. 9.2). Do not release the button. The PET analysis tab is displayed above other tabs.
Drag the series to the window you need. If the studies may be dragged to this window, the cursor will have the shape of . If it is impossible to drag the studies to this window, the cursor will have the shape of . In this case, choose another window or change the display mode in this window (Section 9.2.1). Release the mouse button. The series (fused series) will be opened in this window.
If needed, repeat the actions described in points 2-5 for other series.

Figure 9.2: PET analysis tab stub

9.1.3 Viewing Images of a Series in the PET Analysis Tab

The procedure of viewing images of a series in the PET analysis tab is similar to viewing series in the ﬂat image viewer tab, which is described in Section 2.7.