Microsoft Word - Scientific Program IGRT 2016 Madrid V3

Evidence that the cervix and uterus as well as the pelvic OARs are highly mobile

and naturally prone to positional and volumetric changes.

Uterus moves more than the cervix, they can move independently of each other

and their position can be influenced by the adjacent OARs (Jadon et al, 2014).

Uterine and Cervix Motion

Author

Mean cervix motion mm

Mean uterus motion mm

Anterior (A)

Posterior (P)

Superior (S)

Inferior (I)

Left (L)

Right (R)

Anterior (A)

Posterior (P)

Superior (S)

Inferior (I)

Left (L)

Right (R)

Taylor & Powell

(2008)

2.7(

4.4)

4.1(

2.8)

0.3(

0.8)

7.0(

9.0)

7.1(

6.8)

0.8(

1.3)

Wang et al (2012)

7.9(

6.8)

3.8(

4.0)

3.9(

4.0)

14.2(

10.5)

9.5(

6.6)

6.5(

4.8)

Slide courtesy of Sophie Alexander