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Table 3 Mean and standard deviation of isocenter displacement between CT verification and post-treatment CT

From: Frameless linac-based stereotactic radiosurgery (SRS) for brain metastases: analysis of patient repositioning using a mask fixation system and clinical outcomes

Direction (mm)

Mean

SD

Range

Cranio-caudal

0.08

0.2

-0.3 - 0.2

Medio-lateral

0.04

0.14

-0.3 - 0.2

Anterior-posterior

0.06

0.15

-0.5 - 0.4

3D-displacement

0.09

0.28

0-0.6

  1. SD, standard deviation
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Radiation Oncology

ISSN: 1748-717X

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