2017_IGRT course book

Treatment planning studies: Lung

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• Planning study using 4DCT scans of 9 stage I NSCLC patients

• Design of 4 SBRT treatment plans per patient:

Non-tracked deliveries at 0T

Non-tracked deliveries at 1.5T

Deliveries with tumor tracking at 0T

Deliveries with tumor tracking at 1.5T

• Simulation of dose delivery to all 10 4DCT phases

• Deformable dose accumulation

• Comparison of differences in several dose-volume metrics using paired t-test