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Table 1 Discrepancies in position detection between ExacTrac and CBCT (N = 42)

From: Stereoscopic X-ray imaging, cone beam CT, and couch positioning in stereotactic radiotherapy of intracranial tumors: preliminary results from a cross-modality pilot installation

 

mean ± SD

median

range

95% (abs.)

lateral

+0.1 ± 0.3

+0.1

–0.9 to +0.8

<0.8

longitudinal

–0.5 ± 0.4

–0.4

–1.6 to +0.2

<1.2

vertical

–0.3 ± 0.5

–0.4

–1.4 to +0.8

<1.0

radial

0.8 ± 0.3

0.8

0.3 to 1.8

<1.4

  1. CBCT Cone Beam Computed Tomography
  2. All units are in mm
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Radiation Oncology

ISSN: 1748-717X

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