Aperture modulated arc therapy

S. M. Crooks, Xiaodong Wu, Cristiane Takita, M. Watzich, Lei Xing

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

We show that it is possible to translate an intensity modulated radiation therapy (IMRT) treatment plan and deliver it as a single arc. This technique is referred to in this paper as aperture modulation arc therapy (AMAT). During this arc, the MLC leaves do not conform to the projection of the target PTV and the machine output of the accelerator has a constant value. Dose was calculated using the CORVUS 4.0 IMRT system, which uses a pencil beam dose algorithm, and treatments were delivered using a Varian 2100C/D Clinac. Results are presented for a head and neck and a prostate case, showing the equivalence of the IMRT and the translated AMAT delivery. For a prostate AMAT delivery, coronal plane film dose for the IMRT and AMAT deliveries agreed within 7.19 ± 6.62%. For a meningioma the coronal plane dose distributions were similar to a value of 4.6 ± 6.62%. Dose to the isocentre was measured as being within 2% of the planned value in both cases.

Original languageEnglish
Pages (from-to)1333-1344
Number of pages12
JournalPhysics in Medicine and Biology
Volume48
Issue number10
DOIs
StatePublished - May 21 2003

Fingerprint

Radiotherapy
therapy
arcs
apertures
Modulation
Dosimetry
radiation therapy
dosage
modulation
delivery
Prostate
Therapeutics
Particle accelerators
pencil beams
Meningioma
leaves
equivalence
accelerators
Neck
projection

ASJC Scopus subject areas

  • Biomedical Engineering
  • Physics and Astronomy (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Crooks, S. M., Wu, X., Takita, C., Watzich, M., & Xing, L. (2003). Aperture modulated arc therapy. Physics in Medicine and Biology, 48(10), 1333-1344. https://doi.org/10.1088/0031-9155/48/10/307

Aperture modulated arc therapy. / Crooks, S. M.; Wu, Xiaodong; Takita, Cristiane; Watzich, M.; Xing, Lei.

In: Physics in Medicine and Biology, Vol. 48, No. 10, 21.05.2003, p. 1333-1344.

Research output: Contribution to journalArticle

Crooks, SM, Wu, X, Takita, C, Watzich, M & Xing, L 2003, 'Aperture modulated arc therapy', Physics in Medicine and Biology, vol. 48, no. 10, pp. 1333-1344. https://doi.org/10.1088/0031-9155/48/10/307
Crooks, S. M. ; Wu, Xiaodong ; Takita, Cristiane ; Watzich, M. ; Xing, Lei. / Aperture modulated arc therapy. In: Physics in Medicine and Biology. 2003 ; Vol. 48, No. 10. pp. 1333-1344.
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