OBJECTIVE: This article demonstrates the technical feasibility of noninvasive treatment of
unresectable spinal vascular malformations and primary and metastatic spinal tumors by
use of image-guided frameless stereotactic radiosurgery. METHODS: Stereotactic
radiosurgery delivers a high dose of radiation to a tumor volume or vascular malformation in
a limited number of fractions and minimizes the dose to adjacent normal structures.
Frameless image-guided radiosurgery was developed by coupling an orthogonal pair of x …