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Radiosurgery

  • Daniel M. Trifiletti
  • Eric J. Lehrer
  • Jason P. SheehanEmail author
Chapter
  • 93 Downloads

Abstract

Radiosurgery is a blending of radiosurgery and radiation techniques that was pioneered by Dr. Lars Leksell at the Karolinska Institute in Stockholm, Sweden. This technique involves the ablation of intracranial targets and induction of desired biological effects in target tissues through the use of a high dose of highly conformal ionizing beams through the body. This technique has evolved over time to include the delivery of anywhere between one and five treatments or fractions. Since radiosurgery often involves targeting small radiographically deep lesions within the brain and spine, precision is absolutely essential and is readily obtained by immobilization. The vast majority of clinical experience with radiosurgery has been using photon-based sources, such as the Gamma Knife®, Cyberknife®, or other linear accelerator (LINAC)-based platforms. There are also facilities delivering radiosurgery with charged particles (e.g., protons). There are many similarities in both the delivery and physical principles between conventionally fractionated radiation therapy and radiosurgery. However, there are distinct differences between these two modalities which are employed by clinicians to maximize benefits to patients. This chapter will focus on the unique nature of radiosurgery with regard to medical physics and radiation biology.

Keywords

Radiosurgery Radiation Stereotactic Oncology Cancer Radiobiology Medical physics 

Abbreviations

60Co

Cobalt-60

AVM

Arteriovenous malformation

BRW

Brown-Roberts-Wells

CT

Computerized tomography

CTV

Clinical target volume

DNA

Deoxyribonucleic acid

DPL

Dynamically penalized maximum likelihood

FSE

Fast spin echo

GTV

Gross target volume

Gy

Gray

IMRS

Intensity-modulated radiosurgery

LINAC

Linear accelerator

MLCs

Multileaf collimators

MR

Magnetic resonance

MRI

Magnetic resonance imaging

PTC

Planned target volume

SRS

Stereotactic radiosurgery

US

United States

VP

Ventriculoperitoneal

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Daniel M. Trifiletti
    • 1
  • Eric J. Lehrer
    • 2
  • Jason P. Sheehan
    • 3
    Email author
  1. 1.Department of Radiation OncologyMayo ClinicJacksonvilleUSA
  2. 2.Department of Radiation OncologyIcahn School of Medicine at Mount SinaiNew YorkUSA
  3. 3.Department of Neurological SurgeryUniversity of VirginiaCharlottesvilleUSA

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