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Table 2 Comparison of the heart and left lung dosimetric parameters for the clinical BH DVH and BH FDVH red and orange curves

From: Comparing breath hold versus free breathing irradiation for left-sided breast radiotherapy by PlanIQ™

 

dBH DVH

BH eFDVH

  

Clinical

Orange

Red

  

Mean ± SD

Mean ± SD

p

Mean ± SD

p

a \({\mathbf{V}}_{5\mathbf{G}\mathbf{y}}\) (%)

Heart

8.2 ± 4.2

29.9 ± 4.4

0.016

7.2 ± 5.1

< 0.001

Left Lung

26.9 ± 5.1

35.5 ± 4.7

 < 0.001

21.3 ± 5.8

< 0.001

a \({\mathbf{V}}_{20\mathbf{G}\mathbf{y}}\) (%)

Heart

1.6 ± 1.8

1.7 ± 1.0

 < 0.001

0.8 ± 1.0

< 0.001

Left Lung

11.3 ± 3.9

12.3 ± 1.4

 < 0.001

3.8 ± 0.7

< 0.001

b \({\mathbf{D}}_{\mathbf{m}}\) (Gy)

Heart

2.2 ± 1.5

4.4 ± 0.7

 < 0.001

1.5 ± 0.7

< 0.001

Left Lung

6.3 ± 0.9

6.2 ± 1.6

 < 0.001

3.4 ± 0.7

< 0.001

  1. A p-value < 0.05 is considered statistically significant. The average value and standard deviation are reported for each group dataset
  2. a \({{\text{V}}}_{{\text{xGy}}}\), volume in percentage receiving x Gy; b \({{\text{D}}}_{{\text{m}}}\), mean dose; dBH, breath hold; eFDVH, feasibility dose volume histogram
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Radiation Oncology

ISSN: 1748-717X

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