The main components of the toolbar are:
- Navigation back to the Study List
- Tools
The arrow on the left allows you to navigate back to the study list, the toolbar in the middle allows you to use tools, and the user preferences can be set on the right.
Image Description: Screenshot of the toolbar at the top of the viewer
Available Tools
This section displays all the available tools inside the mode. Please note that some modes have only a subset of tools available or their order of display may be slightly different.
Measurement Tools
When a measurement tool is selected from the toolbar, it becomes the active tool. Use the dropdown menu to see the list of more measurement tools.
The first measurement tool available is the Length tool.
Image Description: Screenshot of the length measurement tool being selected
With this tool, you can measure a length in any linear direction by clicking and dragging.
Image Description: Screenshot of a length measurement being created
By clicking on the dropdown on the right side of the Length tool, you can see the other measurement tools listed:
The Bidirectional Measurement Tool allows you to take 2 linear measurements orthogonal to one another and connected by a point in the center.
The Annotation Tool allows you to create an annotation.
First, you will be prompted to label your annotation.
Then, you can adjust the position of your label.
Ellipse: This tool measures an elliptical area in mm2 and Hounsfield Units (HU). When in PETSUV mode, this tool allows you to measure the standardized uptake value of an ellipse.
Circle: This tool measures the radius in mm, a circular area in mm2, and Hounsfield Units (HU).
Angle: This tool measures an adjustable angle on an image.
Cobb Angle: This tool measures the magnitude of spinal deformities, especially scoliosis, on plan radiographs.
Rectangle: This tool measures an rectangular area in mm2 and Hounsfield Units (HU)
Freehand ROI: This tool allows the user to draw a freehand shaped region of interest (ROI) and then measures the area in mm2, and Hounsfield Units (HU).
Spline ROI: This tool allows you to drop points along an image, but then uses a spline function to create smooth boundaries and then measures the area in mm2.
Livewire: This tool offers magnetic snapping to edges for effortless tracing.
Window/Level
The Window/Level Tool enables manipulating the window level and window width of the rendered image. Click on the tool to enable freeform Window/Level adjustment, then click and drag on the viewport to adjust the window/level.
Click on the dropdown to expand the tool and choose from predefined W/L settings for common imaging scenarios.
You can use the Window Level icon in the upper right corner of the active viewport to show or hide the display color bar.
Pan and Zoom
With the Zoom Tool selected, click and drag the cursor on an image to adjust the magnification. The magnification level is displayed in the viewport.
With the Pan Tool selected, click and drag the cursor on an image to adjust the image position.
Image Capture
The Image Capture Tool allows you to download a high quality image capture using common image formats (png, jpg).
In the dialogue that opens, you can configure the filename, image's width and height, and filetype before downloading the image.
More Tools Menu
Hover over the dropdown to the right of the Reset View arrow to get a list of all of the remaining tools available.
Reset View: This tool resets all image manipulation such as position, magnification, and window/ level adjustments on the current image.
Rotate Right: This tool rotates the image 90 degrees clockwise.
Flip Horizontally: This tool flips the image 180 degrees horizontally.
Stack Scroll: This tool links all viewports containing images such that the viewports all scroll together.
Magnify: This tool allows you to magnify a particular area of interest.
Invert: This tool inverts the color scale of the current image.
Cine: This tool toggles the Cine player control in the currently selected viewport. Click the ”x” on the Cine player or click the tool again to toggle off.
Probe: Drag the probe to see pixel values and Hounsfield units.
Reference Lines: This tool shows lines in spatially related viewports to represent the planar position in the active viewport.
Calibration tool: Calibrate (or override) the Pixel Spacing Attribute (Physical distance in the patient between the center of each pixel. Note that calibration done by the user will show "USER" after the measurements as in the image below.
Stack Image Sync: This tool synchronize image scrolling in all spatially related viewports.
DICOM Tag Browser: This tool displays top-level DICOM tags.
When a tool is selected from the More Tools menu, it becomes the active tool until it is replaced by clicking on a different tool in the More Tools menu or main toolbar.