J Med Phys Close
 

Figure 1: Sample patient showing maximum rectal diameter measured in axial plane as 4.99 cm; whereas, on the sagittal and coronal planes it can be seen that the 'true' maximum rectal diameter is 2.66 cm

Figure 1: Sample patient showing maximum rectal diameter measured in axial plane as 4.99 cm; whereas, on the sagittal and coronal planes it can be seen that the 'true' maximum rectal diameter is 2.66 cm