Many patients with acoustic neuromas or schwanommas  have hearing function at the time of diagnosis. The goal of any treatmentg surgery or radiation is to treat the tomor and to maintain the hearing. To date, radiosurgical techniques have been focused on conformal irradiation of the tumor, with less attention to inner ear structures and therefore hearing. This study that was published in Neurosurgery (an academic journal) evaluated tumor control and hearing preservation as they relate to tumor volume, imaging characteristics, and nerve and cochlear (inner ear structure0 radiation dose following stereotactic radiosurgery (SRS) using the Gamma Knife.

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