Brain Tumours

Coverage of the target volume: cribriform plate

• Lateral radiographs are not adequate for target volume delineation • 5 radiologists and 5 radiation oncologists:

o Correct within 2mm in only 39% of cases o Mislocations

 2-5mm in 34%  5-10mm in 20%  >10mm in 7%

Gripp IJROBP 2004