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Table 1 Dosimetric data from the corrected and original CBCT in reference to the planning CT

From: Using corrected Cone-Beam CT image for accelerated partial breast irradiation treatment dose verification: the preliminary experience

 

Planning CT

Corrected CBCT

Original CBCT

Percentage difference (planning CT vs. corrected CBCT)

Percentage difference (planning CT vs. original CBCT)

PTV_EVAL V100

96.6%

95.8%

92.9%

-0.8%

-3.8%

PTV_EVAL V90

100.0%

100.0%

100.0%

0.0%

0.0%

PTV_EVAL D95 (Gy)

38.6

38.6

38.3

0.0%

-0.8%

Ipsilateral lung V30

2.0%

2.0%

2.0%

0.0%

0.0%

Heart V5 (Gy)

0.0

0.0

0.0

0.0%

0.0%