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Table 1 Summary of patient characteristics

From: Fractionated stereotactic radiosurgery for patients with skull base metastases from systemic cancer involving the anterior visual pathway

Parameter

No (%)

Number of patients

34

Sex (F/M)

23/11

Age (years)

 

Median

59

< 65

23

≥ 65 years

11

Histology

 

NSCLC

12

Breast carcinoma

16

Colon carcinoma

2

Others*

4

KPS

 

Median

70

>70

18

≤70

16

Extracranial diseae

 

Present

21

Absent

13

Number of metastases

 

Single

23

Multiple [2, 3]

11

Location

 

CS only

7

CS and retrorbital space

4

CS and clivus

6

CS and/or sellar/suprasellar space

14

CS and petrus bone

3

GTV (cm 3 )

 

Median

8.5

Range

1.9 - 25.8

PTV (cm 3 )

 

Median

12.8

Range

3.4 - 35.8

Conformity index

 

Median

1.61

Range

1.28-2.12

  1. KPS, Karnofsky Performance Status; GTV, Gross Target Volume; PTV, Planning Target Volume.
  2. *Others histologies included two melanomas, one renal cell, and one prostate carcinoma.