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...

The following protocol contains medical necessity criteria that apply for this service. The criteria are also applicable to services provided in the local Medicare Advantage operating area for those members, unless separate Medicare Advantage criteria are indicated. If the criteria are not met, reimbursement will be denied and the patient cannot be billed. Please note that payment for covered s...

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...

BACKGROUND Oligometastases can be divided into sync-oligometastases and oligo-recurrence. The difference is whether the primary site is uncontrolled or controlled. The goal of this multicenter study was to evaluate treatment outcomes and factors affecting survival after stereotactic body radiotherapy for pulmonary oligometastases. METHODS The information after stereotactic body radiotherapy f...

BACKGROUND Limited data describe the prognosis after stereotactic ablative radiotherapy for lung metastases arising from colorectal cancer. Thus, we evaluated treatment outcomes of stereotactic ablative radiotherapy for those patients. METHODS The study involved patients received stereotactic ablative radiotherapy for one to three lung metastases arising from colorectal cancer at a single ins...

The authors present a radiochromic film dosimetry protocol for a multicolor channel radiochromic film dosimetry system consisting of the external beam therapy (EBT) model GAFCHROMIC film and the Epson Expression 1680 flat-bed document scanner. Instead of extracting only the red color channel, the authors are using all three color channels in the absorption spectrum of the EBT film to extend the...

Professional Institutional Original Effective Date: October 17, 2006 Original Effective Date: May 1, 2007 Revision Date(s): January 20, 2007; April 1, 2007; September 25, 2007; June 26, 2008; January 1, 2009; June 30, 2009; February 25, 2011; January 15, 2013; March 27, 2014; January 21, 2016; December 20, 2017 Revision Date(s): September 25, 2007; June 26, 2008; January 1, 2009; June 30, 2009;...

Background: Brain necrosis (RN) is a common radiotherapy sequela for brain metastases. Bevacizumab identified as therapeutic strategy RN. This study aimed to the clinical and radiobiological impacts on efficacy of in treating RN following stereotactic radiosurgery (SRS)

PURPOSE To compare the performance of plastic scintillation detectors (PSD) for quality assurance (QA) in stereotactic radiosurgery conditions to a microion-chamber (IC), Gafchromic EBT2 films, 60 008 shielded photon diode (SD) and unshielded diodes (UD), and assess a new 2D crosshair array prototype adapted to small field dosimetry. METHODS The PSD consists of a 1 mm diameter by 1 mm long sc...

Stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (SRT) have been recognized as an alternative to surgery for small to medium sized vestibular schwannoma (VS). This study analysed and compared the outcomes of VS treated with the first Thailand installation of a dedicated Linac-based stereotactic radiation machine using single-fraction radiosurgery (SRS), hypofraction st...