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Table 1 Summary of tumor charaterictiscs and treatment parameters of patients treated with radiosurgery

From: Frameless linac-based stereotactic radiosurgery (SRS) for brain metastases: analysis of patient repositioning using a mask fixation system and clinical outcomes

 

No (%)

Number of patients

102

Median age

64

Sex (F/M)

52/50

No of lesions per patient

 

1 lesion

64 (63%)

2 lesions

24 (23%)

3 lesions

14 (14%)

Histology

 

lung

54 (53.5%)

breast

17 (16.5%)

melanoma

14 (13.5%)

others

17(16.5%)

Tumor location

 

frontal

31 (20%)

parietal

37 (24%)

temporal

30 (19%)

cerebellar

23 (15%)

occipital

26 (17%)

brainstem

7 (5%)

Radiosurgical dose

 

20 Gy

86 (56%)

18 Gy

44 (28%)

15-16

24 (16%)

Tumor volume (cm 3 )

 

median

1.6

range

0.03-16.3

Treated volume (cm 3 )

 

median

2.2

range

0.2-18.8