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Table 3 Ionization chamber measurements in inhomogeneous thorax phantom for the different treatment plans.

From: Dosimetric accuracy of tomotherapy dose calculation in thorax lesions

 

Target

OAR

Mediastinum 1

-1.7%

0.7%

Mediastinum 2

2.6%

-1.1%

Single metastasis

-2.1%

0.8%

Multipla metastasis

-2.9%

8.9%

Average

-1.0 ± 2.5%

2.3 ± 4.5%

  1. Percentage deviation between measured and calculated dose, for target and OAR point measurements