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Table 3 Tumour and treatment characteristics for patients with local failure (n = 9)

From: Spinal radiosurgery - efficacy and safety after prior conventional radiotherapy

No.

Tumour type

Location

Volume (cc)

Prescription Dose (Gy) SRS

Isodose (%) SRS

Time (months) RTX to SRS

Prior RTX Dose nBED Gy 2/2

1

RCC

T11

93.3

16

65

21.7

42,8

2

RCC

L3

134.2

19

55

8.8

40

3

Chordoma

L2

39.7

22

65

12.4

40

4

Prostate

T11

89.8

18

65

2.8

45

5

Melanoma

C7

17.7

17

65

4.3

33.6

6

Sarcoma

L4

56.3

20

70

2

44

7

Breast

L3

37.6

20

70

28.8

42.8

8

MPNST

T1

26.8

14.5

70

5.8

42.8

9

RCC

T9

49.9

22

70

13.9

42.8

 

Median

-

49.9

19

65

8.8

42.8

 

Mean

-

60.6

18.8

66

11.2

41.6

 

Range

-

18-134

14.5-22

55-70

2-28.8

33.6-45

  1. Abbreviations: SRS = spinal radiosurgery; RTX = conventional radiotherapy; RCC = renal cell carcinoma; MPNST = malignant peripheral nerve sheath tumour