Extracting respiratory signals from thoracic cone beam CT projections.

Abstract

The patient respiratory signal associated with the cone beam CT (CBCT) projections is important for lung cancer radiotherapy. In contrast to monitoring an external surrogate of respiration, such a signal can be extracted directly from the CBCT projections. In this paper, we propose a novel local principal component analysis (LPCA) method to extract the… (More)
DOI: 10.1088/0031-9155/58/5/1447

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