TVD 2016

Take home messages • GTV is tumour you can See ‐ Feel – Image O tli h t ! • u ne w a you see

/ • CTV ‐ contains GTV and or sub‐clinical disease

• Tumour  cannot be seen or imaged C b i di id li d • an e n v ua se to anatomy

• PTV is a geometric volume • Ensures prescription dose is delivered to the CTV I l d i d • nc u es systemat c + ran om error components