Frameless high dose rate stereotactic lung radiotherapy: intrafraction tumor position and delivery time

Nicolas Peguret; Max Dahele; Johan P Cuijpers; Ben J Slotman; Wilko F A R Verbakel

doi:10.1016/j.radonc.2013.04.019

Frameless high dose rate stereotactic lung radiotherapy: intrafraction tumor position and delivery time

Radiother Oncol. 2013 Jun;107(3):419-22. doi: 10.1016/j.radonc.2013.04.019. Epub 2013 May 23.

Authors

Nicolas Peguret¹, Max Dahele, Johan P Cuijpers, Ben J Slotman, Wilko F A R Verbakel

Affiliation

¹ Department of Radiation Oncology, VU University Medical Center, Amsterdam, The Netherlands.

PMID: 23707150
DOI: 10.1016/j.radonc.2013.04.019

Abstract

Intrafraction change in tumor position (Δ) was evaluated for stereotactic lung radiotherapy delivered with flattening filter free volumetric modulated arc therapy. In 140 fractions from 32 patients mean Δ (±SD) was -0.7±1.4 mm (vertical), -0.7±1.3 mm (longitudinal) and +0.2±1.2 mm (lateral) with mean vector 2.1±1.2 mm. Mean delivery time was 4.4±3.4 min (mean beam-on 1.9±0.4 min).

Keywords: Flattening filter free; Intrafraction motion; Lung cancer; SBRT.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aged
Cone-Beam Computed Tomography
Dose Fractionation, Radiation
Female
Humans
Lung Neoplasms / diagnostic imaging
Lung Neoplasms / pathology
Lung Neoplasms / surgery*
Male
Radiosurgery / methods*
Time Factors