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Table 2 Dosimetric data

From: Interstitial high-dose rate brachytherapy as boost for anal canal cancer

Data

Median

Interval

CTV (cc)

22.3

[8.6 - 46.7]

D90%

108

[32 - 117]

EQD2 αβ10 (Gy)

15.1

[5.5 - 20.6]

EQD2 αβ3 (Gy)

18.1

[6.9 - 26.4]

D100%

77

[20 - 95]

EQD2 αβ10 (Gy)

10.9

[3.4 - 14.4]

EQD2 αβ3 (Gy)

13.3

[4.3 - 18.5]

V100

  

%

96

[58 - 100]

cc

18

[8.1 - 45.8]

V150

  

%

37

[26 - 57]

cc

7.2

[2.5 - 26.6]

V200

  

%

19

[10 - 26]

cc

3.4

[1.2 - 11.7]

DHI

0.58

[0.42 - 0.99]

  1. CTV: Clinical target volume; D90: dose delivered to 90% of the CTV; EQD2 αβ10: equivalent dose at 2 Gy per fraction for αβ10 (tumor); EQD2 αβ3: equivalent dose at 2 Gy per fraction for αβ3 (normal tissues); V100: volume which received 100% of the prescribed dose; V150: volume which received 150% of the prescribed dose; V200: volume which received 200% of the prescribed dose; DHI: dose homogeneity index.