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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.