Table 2.

SRS procedure Characteristics

Parameters	Number (%)
Location of treated lesion
Sella	547 (62.9%)
Cavernous sinus	560 (64.4%)
Suprasellar	201 (23.1%)
Other	26 (3.0%)
Median (IQR) margin dose, Gy	14.0 (4.0)
Median (IQR) number of isocenters	11.0 (8.0)
Median (IQR) prescription isodose line, %	50.0 (0.0)
Median (IQR) tumor volume, cm3	3.4 (4.3)
Median (IQR) optic apparatus maximum point dose, Gy	7.5 (2.7)
Median (IQR) pituitary stalk maximum point dose, Gy	9.0 (6.5)

Note: IQR = Interquartile range; SRS = Stereotactic radiosurgery.