Review
Copyright ©The Author(s) 2016.
World J Radiol. Mar 28, 2016; 8(3): 255-267
Published online Mar 28, 2016. doi: 10.4329/wjr.v8.i3.255
Figure 11
Figure 11 Schematic diagram showing the algorithm to acquire the radius in each divided angular segment in the irregular field. Instead of rotating the vectors from the central axis towards the field edge, the whole field is rotated cutting through the positive X-axis.