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Post to Image-Guidance

 
 
The RTT sessions were packed this year. My three take-aways: patient coaching, surface-guidance thresholds and sharing setup photos between centres.
Teaching case (fictional): lower-lobe lesion moving 22 mm. We compared an internal target volume plan with a gated plan. The gated plan reduced the lung V20 considerably, at the cost of longer treatment.

Are you still placing fiducials for liver SBRT, or relying on soft-tissue imaging?

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Added a discussion to , Image-Guidance

What intra-fraction thresholds do you use before you stop the beam? We use 1 mm and 1 degree but get a lot of interruptions with anxious patients.