2017_SBRT_Course Book

Why motion management in IMRT?

• “Open” beams: Ø

“Advantage” of photons: dose deposition “tracks” soft tissue surrounded by lung tissue.

Type A

Type B

Inverse optimization

Courtesy M. Guckenberger

• Volumetric Modulated Arc Therapy: Ø Boost fluence in lung tissue inside PTV Ø

What if healthy tisue or GTV moves in boosted fluence?

SBRT 2017 - D. Verellen