Target Volume Determination 2015

Functional imaging

Functional imaging

ESTRO Course: Target Volume Definition

• Motion • Perfusion • Diffusion • Metabolism

• Motion: Adaptation of the PTV • Perfusion: Viability, Aggressiveness • Diffusion: Cellularity • Metabolism: Delineation, Differentiation

Functional imaging

Stefan Delorme

Functional imaging methods

Dual Energy CT • Scanning with two energies simultaneously – Dual source technique – Energy switching • Tissue differentiation – Water – Fat – Calcium – Iodine • Basis for calculation of electron density

Motion

• Ultrasound:

– Motion tracking – Contrast-enhanced ultrasound – Elastography, ARFI – Optoacoustic imaging

• CT

– In- and expiratory images – Gated imaging (4D CT)

• CT:

• MRI

– 4D CT – Dual engergy CT

– Fast MRI techniques

• MRI

– 4D MRI – Dynamic contrast-enhanced MRI – Dynamic susceptibility contrast MRI – Diffusion imaging – Spectrospopy

• PET