The Angle tool measures the angle between two lines on a DICOM image. The measured angle is displayed in degrees.


Using the Angle Tool


1.Select the Angle tool from the toolbar or the Measure and annotate menu, or press A on the keyboard.


2.Press the left mouse button and drag to draw the first arm of the angle.

3.Release the button and move the mouse to draw the second arm.

4.Click the left mouse button to finish drawing the angle. The measured angle is displayed on the image.



To reposition the entire measurement, click and drag it to the desired location. To move an individual endpoint, click and drag it. The measurement label can also be moved independently by dragging it to a new position.


To delete a measurement, right-click on it and select Delete, or press the Delete key on the keyboard.


To change the fill color, thickness, opacity, and other properties, right-click on the object and select Properties, or double-click on it.


Keyboard Shortcuts


•Press A to activate the Angle tool.

•Press Shift while drawing the second arm to snap it in 10-degree increments.

•Press Esc while drawing to cancel and delete the angle.