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Table 4 Discrepancies in distances inter-Com (Centre Of the Mass of the target volume) when the CTV was entirely assessed (study 1) and when the study was restricted to CT slices containing surgical clips (study 2).

From: 3D-conformal Accelerated Partial Breast Irradiation treatment planning: the value of surgical clips in the delineation of the lumpectomy cavity

 

Study 1

Distance inter-Com (mm)

Study 2

Distance inter-Com (mm)

 

Median

Min - max

Median

Min - max

ΔJ1-J2

3.4

0 - 11.9

2.2

0 - 11.9

ΔJ1-E1

2.6

0.9 - 34.2

1.8

0.5 - 26.3

ΔJ1-E2

3.3

1.1 - 36.5

2.4

0.6 - 30.9

ΔJ2-E1

3.3

0.9 - 24.4

2.4

0.7 - 20.4

ΔJ2-E2

3.5

1.3 - 26.2

3.1

1.3 - 24.7

ΔE1-E2

3.1

0.2 - 24.3

2.5

0.2 - 10.0

  1. ΔJ1-J2 = between J1 and J2. ΔJ1-E1 = between J1 and E1. ΔJ1-E2 = between J1 and E2. ΔJ2-E1 = between J2 and E1. ΔJ2-E1 = between J2 and E2. ΔE1-E2 = between E1 and E2.