Quality assessment of frameless fractionated stereotactic radiotherapy using cone beam computed tomography

International Journal of Radiation Oncology, Biology, Physics
Lee-Cheng PengChihray Liu

Abstract

A quality assessment of intracranial stereotactic radiotherapy was performed using cone beam computed tomography (CBCT). Setup errors were analyzed for two groups of patients: (1) those who were positioned using a frameless SonArray (FSA) system and immobilized with a bite plate and thermoplastic (TP) mask (the bFSA group); and (2) those who were positioned by room laser and immobilized using a TP mask (the mLAS group). A quality assurance phantom was used to study the system differences between FSA and CBCT. The quality assessment was performed using an Elekta Synergy imager (XVI) (Elekta Oncology Systems, Norcross, GA) and an On-Board Imager (OBI) (Varian Medical Systems, Palo Alto, CA) for 25 patients. For the first three fractions, and weekly thereafter, the FSA system was used for patient positioning, after which CBCT was performed to obtain setup errors. (1) Phantom tests: The mean differences in the isocenter displacements for the two systems was 1.2 ± 0.7 mm. No significant variances were seen between the XVI and OBI units (p~0.208). (2)Patient tests: The mean of the displacements between FSA and CBCT were independent of the CBCT system used; mean setup errors for the bFSA group were smaller (1.2 mm) than those of the m...Continue Reading

References

Jul 1, 1997·International Journal of Radiation Oncology, Biology, Physics·F J BovaC Liu
Nov 7, 1998·International Journal of Radiation Oncology, Biology, Physics·J M BuattiW M Mendenhall
Mar 22, 2000·International Journal of Radiation Oncology, Biology, Physics·S L MeeksK D Foote
May 16, 2003·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·Clare E HerbertNigel A Spry
Feb 3, 2005·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Shaleen KumarMichael Brada
Feb 3, 2005·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Brigitta G BaumertJ Bernard Davis
Jun 29, 2005·Seminars in Radiation Oncology·Sanford L MeeksFrancis J Bova
Aug 27, 2005·Medical Physics·A W LightstoneUNKNOWN American Association of Physicists in Medicine Radiation Therapy Committee
Dec 24, 2005·Medical Physics·Martijn EngelsmanHanne M Kooy
Apr 4, 2006·International Journal of Radiation Oncology, Biology, Physics·Lifei ZhangLei Dong
Nov 28, 2006·International Journal of Radiation Oncology, Biology, Physics·Judit Boda-HeggemannFrederik Wenz
May 3, 2007·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·Thomas H WagnerWolfgang Tome
Aug 21, 2007·International Journal of Radiation Oncology, Biology, Physics·Matthias GuckenbergerMichael Flentje
Apr 4, 2008·Medical Physics·William Y SongJonathan G Li
May 24, 2008·International Journal of Radiation Oncology, Biology, Physics·Timothy D SolbergSicong Li
May 24, 2008·International Journal of Radiation Oncology, Biology, Physics·Jean-Pierre BissonnetteDavid A Jaffray
Jun 3, 2008·International Journal of Radiation Oncology, Biology, Physics·Laura MasiCarlo Cavedon
Aug 30, 2008·International Journal of Radiation Oncology, Biology, Physics·Jan van SantvoortPetra Bos

❮ Previous
Next ❯

Citations

Apr 1, 2015·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·Juan Francisco Calvo-OrtegaJoan Casals
May 20, 2014·Cancer radiothérapie : journal de la Société française de radiothérapie oncologique·V MarchesiI Buchheit
Dec 24, 2011·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·A TheelenB G Baumert
May 29, 2012·Cancer radiothérapie : journal de la Société française de radiothérapie oncologique·G DelponM-A Mahé
Sep 4, 2015·Acta Oncologica·Joao Seco, Maria Francesca Spadea
Sep 3, 2014·Cancer radiothérapie : journal de la Société française de radiothérapie oncologique·P Maingon, A Lisbona
Jan 1, 2012·Practical Radiation Oncology·Laura I CerviñoTodd A Pawlicki
Jun 4, 2014·Journal of Applied Clinical Medical Physics·Lei FuYan Yu
Feb 12, 2014·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Jean-Paul V Pelteret, Batmanathan D Reddy

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

International Journal of Radiation Oncology, Biology, Physics
Laura MasiCarlo Cavedon
Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)
Tarun K PodderJames Galvin
© 2021 Meta ULC. All rights reserved