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Many different shapes are allowed in the app. Most of them are self-describing and don't require a detailed description.:
- Point
- Distance (line)
- Arrow
- Rectangle
- Oval
- Angle
- Text
- Open Polygon
- Closed Polygon
- Pencil
- Brush
- Axis
- Dynamic Angle
- Perpendicular Lines
Most of these are self-describing and don't require a detailed description. Generally, you can can create these ROIs by choosing the corresponding tool and then clicking and dragging within the viewing area, once or multiple times. Certain ROI types are actually composite objects, defined by multiple points that you reposition in order to obtain the desired measurement.
Calibration
To calibrate a viewer, create a distance ROI and double-click it to open its information panel. Click the Recalibrate button and you'll be able to redefine the ROI length. The app scales the viewer pixel size to match the entered value. All measurements done in this viewer are consequently updated.
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When viewing multiple series at the same time, you may want your actions to be applied to all the open viewers, or to all images in the current stack.
The term synchronization refers to keeping different viewers aligned on the same position in patient space, if possible. This function may seem trivial, but it actually incurs many complications that are addressed with different techniques.
Straightforward synchronization is only possible between series of the same study that have been properly created with correct orientation and size information. If this information is missing or wrong, successfully synchronizing two series of images may be challenging. By default, the app doesn't try to synchronize series belonging to different studies. To enable this, you may use what is offered in the Viewer menu, in the Synchronization submenu.
The term propagation refers to applying the same adjustments to different viewers.
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, i.e. WL/WW.
Crosslines
Crosslines are reference lines. When multiple viewers are open, these lines are drawn on a viewer to represent the location where the images displayed in other viewers cross the image currently displayed in this viewer, or to display the range of images available in the other viewer.
Fusion
Annotations
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