Novalis Frameless Radiosurgery

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Presentation transcript:

Novalis Frameless Radiosurgery Department of Radiation Oncology University of Arizona Russell J. Hamilton, Ph.D. Medical Physicist

Novalis Linear Accelerator Photons ( 6 MV )

Gantry Rotation

Gantry Rotation

Gantry Rotation

Table Rotation

CT Simulation

CT Simulation Mask Fabrication

CT H&N Localizer

CT Simulation Positioning

CT Simulation Acquisition Definition

CT Simulation Localization Box Image

CT Simulation Targets

BrainScan Treatment Planning Isocenter 1

BrainScan Treatment Planning Isocenter 1

BrainScan Treatment Planning Isocenter 1

BrainScan Treatment Planning Isocenter 2

BrainScan Treatment Planning Isocenter 2

Novalis Head Frame Positioing Head ring placed on patient Patient CT scanned with localizer Treatment plan generated Isocenter position printed on paper Paper attached to TAPO Patient placed on treatment couch in localizer box Box aligned using TAPO

Novalis Head Frame Positioning

Novalis Head Frame Positioning

Novalis Head Frame Positioning

Novalis Head Frame Positioning

Novalis Head Frame Positioning

Novalis Head Frame Positioning

Novalis Head Frame Positioning Assumes target is in the identical position relative to the head ring as it was for CT scan Alignment based on visual alignment of lasers with TAPO on localizer box

ExacTrac Positioning Patient placed on table in mask array Preposition with Robtics X-ray guided alignment X-rays fused with DRRs (from planning) 3 translations and 3 rotations determined Position with Robotics Verification of position with X-rays

Novalis Frameless Treatment Setup

Novalis Frameless Treatment Setup

Novalis Frameless Treatment Setup

Novalis Frameless Treatment Setup

Novalis Frameless Treatment Setup

ExacTrac Software

ExacTrac Prepositioning

ExacTrac Ready to Position

ExacTrac Isocenter 1

ExacTrac Software

ExacTrac X-ray 1

ExacTrac X-ray 2

ExacTrac Fusion

ExacTrac Determined Shifts and Rotations

ExacTrac Robotic Positioning

ExacTrac Alignment Verification

ExacTrac Final Alignment

ExacTrac Positioning Patient placed on table in mask array Preposition with Robtics X-ray guided alignment X-rays fused with DRRs (from planning) 3 translations and 3 rotations determined Position with Robotics Verification of position with X-rays

ExacTrac IC2 Initial X-ray

ExacTrac IC2 Prefusion

ExacTrac IC2 Fused

ExacTrac IC2 Position Screen

ExacTrac IC2 Final Alignment Verification

ExacTrac IC2 Final Alignment Verification

ExacTrac IC2 Final Alignment Verification

Thank you