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Communication Dans Un Congrès Année : 2020

Estimation of Radiotherapy Dose Fields from a Few Projections: How Many Projections will Ensure Uniqueness?

Résumé

The cross-section of the dose field generated by a linac with multi-leaf collimators (MLC) can be examined using scintillating fiber technology to obtain a few parallel projections of this (nearly) binary image. We examine ambiguity of the reconstructions when using only six projections, and demonstrate that unique solutions cannot be ensured. We suggest alternative approaches or conditions on the MLC configuration that would restore unicity.
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Dates et versions

hal-03344335 , version 1 (15-09-2021)

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Odran Pivot, Rolf Clackdoyle, Simon Rit, Laurent Desbat. Estimation of Radiotherapy Dose Fields from a Few Projections: How Many Projections will Ensure Uniqueness?. 2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), Oct 2020, Boston (virtual), United States. pp.1-4, ⟨10.1109/NSS/MIC42677.2020.9507859⟩. ⟨hal-03344335⟩
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