A new miniature x‐ray device for interstitial radiosurgery: Dosimetry

Beatty, J.; Biggs, Peter J.; Gall, Kenneth P.; Okunieff, Paul; Pardo, Francisco S.; Harte, K. J.; Dalterio, M. J.; Sliski, Alan

doi:10.1118/1.597791

Cited by 104 publications

(106 citation statements)

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“…The high gradient of dose sets dosimetric problems, which are not easy to solve 83 . One of these is the fact that the distance of the point of prescription from the point source is typically in the interval 1-3 cm; in this situation the uniformity of dose-rate may not to be guaranteed on the whole active volume of the used dosimeter.…”

Section: Dosimetrymentioning

confidence: 99%

Guidelines for quality assurance in intra-operative radiation therapy

Rosi¹,

Viti²

2004

Oncología (Barc.)

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Section: Dosimetrymentioning

confidence: 99%

Guidelines for quality assurance in intra-operative radiation therapy

Rosi¹,

Viti²

2004

Oncología (Barc.)

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“…Exceptions include electronic brachytherapy sources, which generate radiation without radionuclides, 44,45 and the 103 Pd RadioCoil source. 46 Since nuclear disintegration processes are well understood, there is little uncertainty associated with knowledge of the radiation spectrum from the radioactive materials.…”

Section: Ivc Source Emissionsmentioning

confidence: 99%

A dosimetric uncertainty analysis for photon‐emitting brachytherapy sources: Report of AAPM Task Group No. 138 and GEC‐ESTRO

et al. 2011

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This report addresses uncertainties pertaining to brachytherapy single-source dosimetry preceding clinical use. The International Organization for Standardization ͑ISO͒ Guide to the Expression of Uncertainty in Measurement ͑GUM͒ and the National Institute of Standards and Technology ͑NIST͒ Technical Note 1297 are taken as reference standards for uncertainty formalism. Uncertainties in using detectors to measure or utilizing Monte Carlo methods to estimate brachytherapy dose distributions are provided with discussion of the components intrinsic to the overall dosimetric assessment. Uncertainties provided are based on published observations and cited when available. The uncertainty propagation from the primary calibration standard through transfer to the clinic for air-kerma strength is covered first. Uncertainties in each of the brachytherapy dosimetry parameters of the TG-43 formalism are then explored, ending with transfer to the clinic and recommended approaches. Dosimetric uncertainties during treatment delivery are considered briefly but are not included in the detailed analysis. For low-and high-energy brachytherapy sources of low dose rate and high dose rate, a combined dosimetric uncertainty Ͻ5% ͑k =1͒ is estimated, which is consistent with prior literature estimates. Recommendations are provided for clinical medical physicists, dosimetry investigators, and source and treatment planning system manufacturers. These recommendations include the use of the GUM and NIST reports, a requirement of constancy of manufacturer source design, dosimetry investigator guidelines, provision of the lowest uncertainty for patient treatment dosimetry, and the establishment of an action level based on dosimetric uncertainty. These recommendations reflect the guidance of the American Association of Physicists in Medicine ͑AAPM͒ and the Groupe Européen de Curiethérapie-European Society for Therapeutic Radiology and Oncology ͑GEC-ESTRO͒ for their members and may also be used as guidance to manufacturers and regulatory agencies in developing good manufacturing practices for sources used in routine clinical treatments.

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“…Depending on the clinical application, various applicator types can be attached to the XRs. spherical applicators made of polyetherimide material (15-50 mm) are used to deliver radiation to the tumor bed [6][7][8][9].…”

Section: Device Descriptionmentioning

confidence: 99%