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General navigation

This section describes the tools that are available from the user interface to perform general interactions, in other words the operations that are applicable to all view modes.

For a description of mode-specific interactions, see 2D view mode, 3D view mode, and MIP/MPR view mode.

Using the navigation tools

You can navigate images in the viewer with the navigation tools.

	Pan When selected, click and drag in any direction to pan the image.
	Zoom When selected, click an drag up and down to zoom in and out of the image.
	Window/Level When selected, click and drag left and right to adjust window width, and up and down to adjust window level. See also Applying presets. This tool, when working with DICOM images stored in RGB format, for example some US and SC data sets, controls the brightness and contrast; however, the brightness and contrast values are not displayed in the metadata information.
	Invert Intensities Select Invert from the view menu.
	Reset To reset a single view, use the Reset tool located in the view menu. To reset all views, use the Reset tool in main the toolbar.
	Capture Select Capture from the view menu. This function is used to capture a Secondary Capture DICOM image and push the newly acquired image to the appropriate PACS or VNA repository.
	Print Select Print from the view menu. Fill the checkbox if you wish to include confidential patient metadata in the print. To avoid exposing confidential patient metadata, the confidential patient information checkbox is greyed out and disabled during collaboration sessions.

Using mouse and keyboard

You can navigate images in the viewer using the following methods on desktop devices with mouse and keyboard. These interactions work independently of the selected tool.

Pan	To pan the image: Position the mouse pointer over the image. While holding SHIFT, click and drag the image. This will “grab” the image so that you can move it around the main view.
Zoom	To zoom in, do one of the following: Press the + key. Hold CTRL-SHIFT while clicking and dragging the mouse cursor up. To zoom out, do one of the following: Press the - key. Hold CTRL-SHIFT while clicking and dragging the mouse cursor down.
Window/Level	To adjust window width, do one of the following: Right-click and drag left or right. Hold CTRL-ALT, click-drag left or right. To adjust window level, do one of the following: Right-click and drag up or down. Hold CTRL-ALT, click-drag up or down.
Invert intensities	Press either the I or the T key
Reset	Press the Home key.

Using touch gestures

You can navigate images in the viewer using the following methods on touchscreen devices.

Pan	Drag with two fingers
Zoom	Pinch or spread fingers
Window/Level	Double-tap, then drag
Reset	Shake

Applying presets

For some images, window/level or color palette adjustments help get a clearer picture.

To help you quickly make these adjustments on-the-fly, the software comes with pre-loaded presets for window/level and color palette. Which presets are available depends on the modality and view mode of the displayed images:

In 3D view mode, window/level presets are available for all modalities
In 2D and MIP/MPR view modes, color palette presets are available for NM and PT modalities, and window/level presets are available for all other modalities.

For modalities with color palette presets, it is still possible to adjust window/level using mouse or tap gestures.

To select a preset

Select Presets from the menu.
Select the desired preset. For a list of default presets, see Default presets.

When viewing multiple images simultaneously (see Selecting a layout), the preset is applied to the currently selected view.