Determining the role of external beam radiotherapy in unresectable intrahepatic cholangiocarcinoma: a retrospective analysis of 84 patients

Table 3 External beam radiotherapy (EBRT) treatment.

Radiotherapy characteristics	n(%)
Radiation dose (Gy)
30-48	5 (14.3%)
50	21(60.0%)
52-60	9(25.7%)
Irradiation Site
Primary tumor only	20 (57.1%)
Primary tumor and LN metastases	15 (42.9%)
PTV volumes* (cm3)
Minimum.	58.76
Maximum.	1087.65
Mean ± SD	382.29 ± 323.92

LN, lymph node; PTV, planning target volume; SD, standard error.
*The data of PTV volumes were only gathered from the patients who received three-dimensional conformal radiation therapy.

ISSN: 1471-2407