Stereotactic Radiosurgery for Pituitary Adenomas
نویسندگان
چکیده
Stereotactic Radiosurgery (SRS) is a technology that utilizes externally generated ionizing radiation to treat (a) defined target(s) in the head or spine without the need to make an incision. The target is defined by high-resolution stereotactic imaging. It uses multiple convergent beams aimed to the target. The beams deliver a maximal dose to the target (with precision of less than 1mm), while minimizing irradiation of the surrounding tissues. The treatment is performed in a single session. The procedure requires a multidisciplinary team consisting of a neurosurgeon, radiation oncologist and medical physicist. Technologies that are used to perform SRS include linear accelerators, particle beam accelerators and multisource Cobalt 60 units. In order to enhance precision, various devices may incorporate robotics and real time digital imaging. (Stereotactic Radiosurgery Task Force AANS/CNS/ASTRO, March 20, 2006).
منابع مشابه
Stereotactic radiosurgery for pituitary adenomas: an intermediate review of its safety, efficacy, and role in the neurosurgical treatment armamentarium.
OBJECT Pituitary adenomas are very common neoplasms, constituting between 10 and 20% of all primary brain tumors. Historically, the treatment armamentarium for pituitary adenomas has included medical management, microsurgery, and fractionated radiotherapy. More recently, radiosurgery has emerged as a viable treatment option. The goal of this research was to define more fully the efficacy, safet...
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Growth hormone (GH)-secreting pituitary adenomas represent a common source of GH excess in patients with acromegaly. Whereas surgical extirpation of the culprit lesion is considered first-line treatment, as many as 19% of patients develop recurrent symptoms due to regrowth of previously resected adenomatous tissue or to continued growth of the surgically inaccessible tumor. Although medical the...
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Patient Selection Criteria Coverage for the use of stereotactic radiosurgery (SRS) using a gamma or linear-accelerator (LINAC) will be considered when any of the following criteria are met: Arteriovenous malformations; Acoustic neuromas; Pituitary adenomas; Non-resectable, residual or recurrent meningiomas; Craniopharyngiomas; Glomus jugulare tumors; Solitary or multiple brain met...
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When Policy Topic is covered Stereotactic radiosurgery using a gamma or LINAC unit may be considered medically necessary for the following indications: arteriovenous malformations; acoustic neuromas; pituitary adenomas; non-resectable, residual, or recurrent meningiomas; craniopharyngiomas; glomus jugulare tumors; solitary or multiple brain metastases in patients having good perfo...
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