> Detailanzeige

Deodato, Francesco; Cilla, Savino; Gabriella, Macchia; Massaccesi, Mariangela; Ippolito, Edy; Caravatta, Luciana; Picardi, Vincenzo; Romanella, Michele; Di Falco, Carlo; Bartollino, Alessandra; Valentini, Vincenzo; Cellini, Numa; De Spirito, Marco; Piermattei, Angelo; Morganti, Alessio G

Daily On-Line Set-Up Correction in 3D-Conformal Radiotherapy: Is It Feasible?

Literatur-
verwaltung

Zur
Merkliste

Lösche von
Merkliste

Per Whatsapp teilen

Schließen

Merkliste



Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
  • Medientyp: E-Artikel
  • Titel: Daily On-Line Set-Up Correction in 3D-Conformal Radiotherapy: Is It Feasible?
  • Beteiligte: Deodato, Francesco; Cilla, Savino; Gabriella, Macchia; Massaccesi, Mariangela; Ippolito, Edy; Caravatta, Luciana; Picardi, Vincenzo; Romanella, Michele; Di Falco, Carlo; Bartollino, Alessandra; Valentini, Vincenzo; Cellini, Numa; De Spirito, Marco; Piermattei, Angelo; Morganti, Alessio G
  • Erschienen: SAGE Publications, 2012
  • Erschienen in: Tumori Journal, 98 (2012) 4, Seite 441-444
  • Sprache: Englisch
  • DOI: 10.1177/030089161209800407
  • ISSN: 0300-8916; 2038-2529
  • Schlagwörter: Cancer Research ; Oncology ; General Medicine
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:sec><jats:title>Aims and background</jats:title><jats:p> The aim of this report was to investigate the feasibility in terms of treatment time prolongation of an on-line no-action level correction protocol, based on daily electronic portal image verification. </jats:p></jats:sec><jats:sec><jats:title>Methods and study design</jats:title><jats:p> The occupation of a linear accelerator (LINAC) delivering 3-D conformal treatments was monitored for two weeks (from Monday to Friday, 10 working days). An electronic portal image device I-View (Elekta, UK) was used for setup verification. Single-exposure portal images were acquired daily using the initial 8 monitor units delivered for each treatment field. Translational deviations of isocenter position larger than 5 mm or 7 mm, for radical or palliative treatments, respectively, were immediately corrected. In order to estimate the extra workload involved with the on-line protocol, the time required for isocenter check and table correction was specifically monitored. </jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p> Forty-eight patients were treated. In all, 482 fractions had electronic portal images taken. Two hundred and forty-five setup corrections were made (50.8% of all fractions). The occupation of the LINAC lasted 106 h on the whole. Twelve h and 25 min (11.7% of LINAC occupation time) were spent for portal image verification and setup correction. On the average, 4.3 fractions per hour were carried out. </jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p> When used by trained therapists, ideally, portal imaging may be carried out before each fraction, requiring approximately 10% of LINAC occupation time. </jats:p></jats:sec>