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Table 1 Summary of patient charateristics and treatment parameters

From: Single-isocenter multiple-target stereotactic radiosurgery for multiple brain metastases: dosimetric evaluation of two automated treatment planning systems

Parameter No
Number of patients 36
Median age 52
Sex (F/M) 19/17
Histology
Lung 15
Breast 9
Melanoma 7
Kidney 4
Sarcoma 1
No of lesions per patient
2–9 lesions 19
10–25 lesions 17
Tumor location
Frontal 27%
Parietal 18%
Temporal 22%
Cerebellar 16%
Occipital 17%
Radiosurgical dose
18 Gy 11
20 Gy 356
Gross tumor volume (cm3)
Median 0.16
Range 0.07–2.1
Median total GTV 1.33
Range 0.23–4.67
Planning tumor volume (cm3)
Median 0.37
Range 0.15–1.18
Median total PTV 3.42
Range 0.61–9.37