VIEWRAY MRIdian System 4.5 - Using 3-Point Landing; Fine-Tuning Point Placement

240 MRIdian® system L-0009 Release 4.5 ViewRay, Inc.
Chapter 6: Treatment Planning
6.23.2 Using 3-Point Landing
The 3-Point Landing tool places a point on the patient image based on the visible fiducials.
1. Make sure you are in the Axial view
.
2. Click >
3-Point Landing.
3. Click on a poin
t on the image based on fiducial placement, release the click and
move the mouse to the next fiducial placement and click.
 A
dashed red line will be drawn between the two fiducials.
4. Click on a poin
t arising from the first line and drag it to the third fiducial and
release the click.
 The first line you drew and the vertical line coming from that line will be triangulated
and a point placed.
6.23.3 Fine-tuning Point Placement
 To move 0.01 cm at a time, use the directional arrows on the point placement box.
 To move 0.1 cm at a time, hold down the Ctrl key when using the arrow keys.