Target Volume Determination 2015

ESTRO Course: Target Volume Definition

Learning Objectives • To understand potential and limitations of CT, MRI and PET for detection and characterization of CNS tumors • CT • MRI • PET/CT • Functional imaging

CT • Not state-of-the-art for diagnosis, esp. low grade glioma • For planning purposes and emergencies • Only if MRI not possible or available • Exceptions: – High grade glioma – Meningioma – AVMs

Imaging for Determining the Gross Tumor Volume (GTV): CNS Tumors Stefan Delorme

Slice orientation

Image contrasts

Slice by slice...

Tumour

Frontal lobe

Oedema

Carotid artery Temporal lobe

Pituitary stalk Brain stem

Necrosis

CSF

Cerebellum

Contrast medium

Bone

White matter

Grey matter