2014
DOI: 10.1093/neuonc/nou284
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The biology of radiosurgery and its clinical applications for brain tumors

Abstract: Stereotactic radiosurgery (SRS) was developed decades ago but only began to impact brain tumor care when it was coupled with high-resolution brain imaging techniques such as computed tomography and magnetic resonance imaging. The technique has played a key role in the management of virtually all forms of brain tumor. We reviewed the radiobiological principles of SRS on tissue and how they pertain to different brain tumor disorders. We reviewed the clinical outcomes on the most common indications. This review f… Show more

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Cited by 107 publications
(74 citation statements)
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“…The radiobiological mechanisms behind radiosurgery have yet to be fully elucidated, but a combination of direct cytotoxic effects and vascular changes have been implicated (19). Histological analyses of brain metastases after radiosurgery are limited, but pathological studies have shown an inflammatory reaction made up of an accumulation mostly of leukocytes to be a characteristic response to SRS (16).…”
Section: Discussionmentioning
confidence: 99%
“…The radiobiological mechanisms behind radiosurgery have yet to be fully elucidated, but a combination of direct cytotoxic effects and vascular changes have been implicated (19). Histological analyses of brain metastases after radiosurgery are limited, but pathological studies have shown an inflammatory reaction made up of an accumulation mostly of leukocytes to be a characteristic response to SRS (16).…”
Section: Discussionmentioning
confidence: 99%
“…There's an ongoing debate whether additional effects to the ones described in section 2.1 come into play for SRS and SBRT [11,14,50,72].…”
Section: Stereotactic Radiosurgerymentioning
confidence: 99%
“…Prior to CK, the median maximal diameter and reported volume for solid and cystic tumors were 3.3 cm and 9.2 cm 3 , compared to 3.3 cm and 8.9 cm 3 , respectively ( Table 1). SRS was delivered in three equal fractions (N=29) over the course of 3 days, to a median prescription dose of 18 Gy (range [18][19][20][21][22][23][24][25] prescribed to median 80% (range 71-M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 90) isodose line (radiobiologically equivalent to a 11.3-Gy single dose, using the linear-quadratic model and α/ÎČ ratio of 3 as previously described). 28,36 The cystic tumor of greatest volume was treated with 5 fractions given its still large residual complexity with multiple cystic components after resection.…”
Section: Radiosurgery Treatment Planmentioning
confidence: 99%
“…Meanwhile, a reduced radiosurgical dose is thought to achieve adequate tumor control while lessening morbidity, most notably, cranial nerve complications. [23][24][25][26][27] A report of this multisession regimen consisting of 18 Gy in 3 fractions for VS of all sizes revealed 3-and 5-year Kaplan-Meier tumor control rates of 99% and 96%, respectively, with 76% having serviceable hearing preservation. There were no cases of treatment-related facial weakness, and 2% patients developed trigeminal dysfunction, among whom half was transient.…”
Section: Introductionmentioning
confidence: 99%