Abstract # 1096 Assessment of Lung Tumor Motion During Respiratory Gating using Implanted Fiducials

Presenter: Nelson, Christopher

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In patient #1, three of the five fiducials migrated to the stomach leaving only two for daily imaging. Fiducial #1 was located in directly in the tumor and fiducial #2 was located between the posterior chest wall the tumor. Table 1 displays the mean (standard deviation) and maximum fiducial excursions for the left-right (LR), superior-inferior (SI), and anterior­posterior (AP) directions as measured on the portal images.

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