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Table 1 Patient characteristics

From: Intraoperative radiotherapy with low energy x-rays for primary and recurrent soft-tissue sarcomas

Characteristic N %
Age
 Median Age (Range) [years] 48 [15–77]
Gender
 Male 16 51.6
 Female 15 48.4
Disease Status
 Primary 6 19.4
 Recurrent 25 80.6
Tumor Location
 Upper extremity 3 9.7
 Lower extremity 13 42
 Abdomen/pelvis 11 35.5
 Thorax 3 9.7
 Head and neck 1 3.2
Histology
 Liposarcoma 9 29.0
 Leiomyosarcoma 3 9.7
 Myxofibrosarcoma 3 9.7
 Neurofibrosarcoma 4 12.9
 Others 12 38.7
Grading
 G1 6 19.4
 G2 8 25.8
 G3 8 25.8
 Unknown 9 29.0
Tumor Size
 Mean/Range [cm] 7.1 [1.8–22.0]
Prior RT
 Yes 13 41.9
 No 18 58.1
Resection Status
 R0 18 58.1
 R1 8 25.8
 R2 2 6.5
 Unknown 3 9.7
IORT
 Spherical applicator 28 90.3
 Flat applicator 3 9.7
 Dose (Range) [Gy] 5–20
EBRT after IORT
 Yes 15 48.4
 No 16 51.6
Systemic therapy after IORT
 Yes 9 29.0
 No 22 71.0