Prognostic factors for outcomes after whole-brain irradiation of brain metastases from relatively radioresistant tumors: a retrospective analysis

Table 4 Results of other studies investigating an escalation of the dose of WBI beyond 30 Gy in patients with brain metastases from a relatively radioresistant tumor.

Reference	Design	N patients	Tumor type	Median survival
Cannady et al. [8]	retrospective	46	renal cell carcinoma	30 Gy: 2.7 mos. >30 Gy: 8.5 mos.
Isokangas et al. [18]	retrospective	60	malignant melanoma	30 Gy: 4.1 mos. >30 Gy: 9.6 mos.
Present study	retrospective	164	various	30 Gy: 3.3 mos. >30 Gy: 9.5 mos

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