Single fraction radiosurgery using Rapid Arc for treatment of intracranial targets

Stereotactic-Radio-Surgery (SRS) using Conformal-Arc-Therapy (CAT) is a well established irradiation technique for treatment of intracranial targets. Although small safety margins are required because of very high accuracy of patient positioning and exact online localisation, there are still disadva...

Full description

Saved in:
Bibliographic Details
Published in:Radiation oncology (London, England) England), 2010-09, Vol.5 (1), p.77-77, Article 77
Main Authors: Wolff, Hendrik A, Wagner, Daniela M, Christiansen, Hans, Hess, Clemens F, Vorwerk, Hilke
Format: Article
Language:English
Subjects:
Accuracy
Adult
Aged
Brain Neoplasms - surgery
Care and treatment
Female
Health aspects
Humans
Male
Meningioma
Methods
Middle Aged
Patient outcomes
Radiation therapy
Radiosurgery
Radiosurgery - methods
Radiotherapy Planning, Computer-Assisted - methods
Radiotherapy, Intensity-Modulated - methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Stereotactic-Radio-Surgery (SRS) using Conformal-Arc-Therapy (CAT) is a well established irradiation technique for treatment of intracranial targets. Although small safety margins are required because of very high accuracy of patient positioning and exact online localisation, there are still disadvantages like long treatment time, high number of monitor units (MU) and covering of noncircular targets. This planning study analysed whether Rapid Arc (RA) with stereotactic localisation for single-fraction SRS can solve these problems. Ten consecutive patients were treated with Linac-based SRS. Eight patients had one or more brain metastases. The other patients presented a symptomatic vestibularis schwannoma and an atypic meningioma. For all patients, two plans (CAT/RA) were calculated and analysed. Conformity was higher for RA with additional larger low-dose areas. Furthermore, RA reduced the number of MU and the treatment time for all patients. Dose to organs at risk were equal or slightly higher using RA in comparison to CAT. RA provides a new alternative for single-fraction SRS irradiation combining advantages of short treatment time with lower number of MU and better conformity in addition to accuracy of stereotactic localisation in selected cases with uncomplicated clinical realization.
ISSN:1748-717X
1748-717X
DOI:10.1186/1748-717x-5-77