FIGURE 1.
Direction of measurements taken and example of measurements used in the study.
The bold brown line is the reference position on CT image; the thin brown line is the daily position on cone-beam computed tomography (CBCT)
FIGURE 2.
Rectal thirds when using a different alignment method.
FIGURE 3.
Rectal thirds when using a method to align the bone structures – the sacrum compared to gender.
FIGURE 4.
Rectal thirds when using a method to align the posterior rectal wall compared to gender.
FIGURE 5.
Fluctuations in the daily and reference volume of the rectum and urinary bladder.