Calculation of backscatter factors for diagnostic radiology using Monte Carlo methods

Petoussi-Henss, Nina; Zankl, M.; Drexler, G.; Panzer, W.; Regulla, D.F.

doi:10.1088/0031-9155/43/8/017

Cited by 123 publications

(77 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An average value of BSF (BSF=1.2) for all occurring tube voltages was derived from the literature [5,13]. E (mSv) is principally calculated from a given set of selected organ doses H T (mSv) along:…”

Section: Formulasmentioning

confidence: 99%

Fluoroscopic radiation exposure of the kyphoplasty patient

et al. 2005

View full text Add to dashboard Cite

Section: Formulasmentioning

confidence: 99%

Fluoroscopic radiation exposure of the kyphoplasty patient

et al. 2005

View full text Add to dashboard Cite

“…5 CF is 1 Ϯ 5%, with appropriate annual measurement and adjustment by a medical physicist. Because the entrance plane of the patient's head positioned at isocenter is 5-9 cm from the interventional reference point, depending on patient size, ISL ranges from 0.75-0.85.…”

mentioning

confidence: 99%

Neurointerventions in Children: Radiation Exposure and Its Import

Orbach

Stamoulis

Strauss

et al. 2013

American Journal of Neuroradiology

View full text Add to dashboard Cite

BACKGROUND AND PURPOSE:Neurointerventions in children have dramatically improved the clinical outlook for patients with previously intractable cerebrovascular conditions, such as vein of Galen malformations and complex arteriovenous fistulas. However, these complex and sometimes lengthy procedures are performed under fluoroscopic guidance and thus unavoidably expose vulnerable pediatric patients to the effects of ionizing radiation. Recent epidemiologic evidence from a national registry of children who underwent CT scans suggests a higher-than-expected incidence of secondary tumors. We sought to calculate the predicted risk of secondary tumors in a large cohort of pediatric neurointerventional patients.

show abstract

“…The BSF is the ratio of the air kerma measured with a patient or phantom in the X‐ray beam to the air kerma measured at the same location without a patient or phantom in the X‐ray beam. Tables of BSF determined both experimentally ( 8 ) and through simulation ( 9 ) as a function of beam quality, substance, and X‐ray field size have been published. We have used the data from Petoussi‐Henss et al ( 9 ) to assemble a graphic plotting the BSF as a function of patient size for a range of beam qualities (Fig.…”

Section: Estimating the Contribution Of Digital Acquisition Imagimentioning

confidence: 99%

Calculating the peak skin dose resulting from fluoroscopically guided interventions. Part I: Methods

Jones

Pasciak

2011

J Applied Clin Med Phys

View full text Add to dashboard Cite

While direct measurement of the peak skin dose resulting from a fluoroscopically‐guided procedure is possible, the decision must be made a priori at additional cost and time. It is most often the case that the need for accurate knowledge of the peak skin dose is realized only after a procedure has been completed, or after a suspected reaction has been discovered. Part I of this review article discusses methods for calculating the peak skin dose across a range of clinical scenarios. In some cases, a wealth of data are available, while in other cases few data are available and additional data must be measured in order to estimate the peak skin dose. Data may be gathered from a dose report, the DICOM headers of images, or from staff and physician interviews. After data are gathered, specific steps must be followed to convert dose metrics, such as the reference point air kerma (normalKa,r) or the kerma area product (KAP), into peak skin dose. These steps require knowledge of other related factors, such as the f‐factor and the backscatter factor, tables of which are provided in this manuscript. Sources of error and the impact of these errors on the accuracy of the final estimate of the peak skin dose are discussed.PACS numbers: 87.59.Dj, 87.53.Bn

show abstract

Calculation of backscatter factors for diagnostic radiology using Monte Carlo methods

Cited by 123 publications

References 15 publications

Fluoroscopic radiation exposure of the kyphoplasty patient

Fluoroscopic radiation exposure of the kyphoplasty patient

Neurointerventions in Children: Radiation Exposure and Its Import

Calculating the peak skin dose resulting from fluoroscopically guided interventions. Part I: Methods

Contact Info

Product

Resources

About