Gynae BT 2017

Imaging protocols MRI and CT Changes during EBRT (Organ – Target Movement)

Considerable extent of internal-organ motion with uterine displacements ranging from 8 mm up to 48 mm

Chan P et al. Int J Radiat Oncol Biol Phys 2008;70:1507–15. Lee JE et al. Gynecol Oncol 2007;104:145–51. Taylor A, Powell MEB. Radiother Oncol 2008;88:250–7. Kerkhof EM et al. Radiother Oncol 2009;93:115–21.

Most studies support that the greater impact on cervix-uterus motion is caused by variations in bladder filling

Buchali A et al. Radiother Oncol 1999;52:29–34. Taylor A, Powell MEB. Radiother Oncol 2008;88:250–7. Han Y et al. Int J Radiat Oncol Biol Phys 2006;65:617–23.

One study found that the change in the rectum correlated significantly but weakly with the motion of the cervix and uterus in the AP direction

van de Bunt L et al. Radiother Oncol 2008;88:233–40.

Imaging protocols CT and MRI, JCA Dimopoulos, P Petrow, Prague, Czech Republic, 22.10.2017 - 26.10.2017