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Table 5 Intraluminal brachytherapy (n = 96)

From: Patterns of radiotherapy practice for biliary tract cancer in Japan: results of the Japanese radiation oncology study group (JROSG) survey

Characteristic

Patients (n)

Source

 

  Ir-192

96 (100)

ILBT single dose/fraction (Gy)

 

  < 5

16 (16.7)

  5

33 (34.4)

  6

20 (20.8)

  > 6

27 (28.1)

Total dose (Gy)

 

  < 15

14 (14.6)

  15 - 25

41 (42.7)

  ≥ 25

41 (42.7)

Prescription point (from the source)

 

  5 mm

4 (4.2)

  7 mm

4 (4.2)

  10 mm

72 (75.0)

  12 mm

14 (14.6)

  Unknown

2 (2.1)

With EBRT (Median EQD2, 60.4 Gy)

76 (79.2)

Without EBRT (Median EQD2, 35.8 Gy)

20 (20.8)

  1. Abbreviations: Ir Iridium; Gy Gray; EBRT External beam radiotherapy; EQD 2 The biologically equivalent dose in 2-gray fractions.