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Table 1 Average and standard deviation of photon boost cavity displacements in the three orthogonal directions, and total radial displacement

From: Image guidance using 3D-ultrasound (3D-US) for daily positioning of lumpectomy cavity for boost irradiation

Displacement

R/L (cm)

S/I (cm)

A/P (cm)

Radial (cm)

Simulation US reference

0.2 ± 0.8

0.1 ± 0.7

0.2 ± 0.6

1.1 ± 0.5

1st Treatment Fraction US Reference

0.2 ± 0.5

-0.1 ± 0.5

0.1 ± 0.6

0.8 ± 0.4

  1. Results are shown using both the simulation and first treatment fraction scans as the RV.