A systematic evaluation of the error detection abilities of a new diode transmission detector

Journal of Applied Clinical Medical Physics
Vikren SarkarBill J Salter

Abstract

Transmission detectors meant to measure every beam delivered on a linear accelerator are now becoming available for monitoring the quality of the dose distribution delivered to the patient daily. The purpose of this work is to present results from a systematic evaluation of the error detection capabilities of one such detector, the Delta4 Discover. Existing patient treatment plans were modified through in-house-developed software to mimic various delivery errors that have been observed in the past. Errors included shifts in multileaf collimator leaf positions, changing the beam energy from what was planned, and a simulation of what would happen if the secondary collimator jaws did not track with the leaves as they moved. The study was done for simple 3D plans, static gantry intensity modulated radiation therapy plans as well as dynamic arc and volumetric modulated arc therapy (VMAT) plans. Baseline plans were delivered with both the Discover device and the Delta4 Phantom+ to establish baseline gamma pass rates. Modified plans were then delivered using the Discover only and the predicted change in gamma pass rate, as well as the detected leaf positions were evaluated. Leaf deviations as small as 0.5 mm for a static three-dimensi...Continue Reading

References

Dec 1, 1995·International Journal of Radiation Oncology, Biology, Physics·M Austin-SeymourM Goitein
Feb 20, 1998·Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology·R M MacklisM S Weinhous
Nov 25, 2003·International Journal of Radiation Oncology, Biology, Physics·Roel J H M SteenbakkersCoen R N Rasch
Mar 15, 2005·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Tai Keung YeungErnst Lederer
Apr 22, 2006·International Journal of Radiation Oncology, Biology, Physics·Adam C RiegelPing S Wong
May 24, 2008·International Journal of Radiation Oncology, Biology, Physics·Benedick A Fraass
May 24, 2008·International Journal of Radiation Oncology, Biology, Physics·M Saiful HuqEllen D Yorke
Feb 19, 2009·Journal of Applied Clinical Medical Physics·Eli E FurhangLouis B Harrison
May 16, 2009·Computer Methods and Programs in Biomedicine·Gijsbert H BolJan J W Lagendijk
Oct 9, 2009·Medical Physics·Eric E KleinUNKNOWN Task Group 142, American Association of Physicists in Medicine
Feb 9, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Björn PoppeKay C Willborn
Jul 17, 2010·Medical Physics·A MansJ C Stroom
Mar 3, 2012·Medical Physics·Deshan Yang, Kevin L Moore
Oct 25, 2012·Cancer radiothérapie : journal de la Société française de radiothérapie oncologique·C MeyrieuxV Bodez
Nov 20, 2014·Practical Radiation Oncology·Lindsey A OlsenKevin L Moore
Sep 13, 2015·Practical Radiation Oncology·David J HoopesEric C Ford
Sep 30, 2016·Journal of Applied Clinical Medical Physics·Taoran LiJennifer C O'Daniel
Dec 9, 2016·Journal of Applied Clinical Medical Physics·Elizabeth L CovingtonJean M Moran
Jul 6, 2017·Physics in Medicine and Biology·Marlies PaslerJohannes Lutterbach
Mar 7, 2018·Journal of Applied Clinical Medical Physics·Audrey H Zhuang, Arthur J Olch

❮ Previous
Next ❯

Citations

May 7, 2021·Journal of Applied Clinical Medical Physics·Hirofumi HondaYoshihiro Uto
May 5, 2021·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)·Edoardo PetrucciMassimo Pasquino

❮ Previous
Next ❯

Software Mentioned

Scandidos
Eclipse
Discover
Delta4
VMAT

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.