Calibration of GafChromic XR‐RV3 radiochromic film for skin dose measurement using standardized x‐ray spectra and a commercial flatbed scanner

McCabe, Bradley P.; Speidel, Michael A.; Pike, T; Lysel, Michael S. Van

doi:10.1118/1.3560422

Cited by 75 publications

(76 citation statements)

References 44 publications

(62 reference statements)

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“…Comparison between table 1 and 2 shows halogens (Cl and Br) in the polyester layer of XR-RV3 but igure 3 showed that dose pro iles from both ilms are nearly identical at megavoltage energies. McCabe et al (6) showed that the white side of XR-RV3 absorbed more radiation compared to the orange side. The phantom ( igure 1) was designed to cause differential iltering of the soft beam components but this did not cause a deviation in the dose pro iles in igure 3.…”

Section: Discussionmentioning

confidence: 99%

“…EBT is semi-transparent while XR-RV3 ilm has a yellow polyester coating that faces the radiation source during dose measurement (6) . An EPSON Perfection V330 Photo scanner (Scan software version 3.9.0.0US) was used to scan the ilm (7) .…”

Section: Methodsmentioning

confidence: 99%

“…The Photoelectric effect is dominant at diagnostic radiology energies and depends on the effective atomic number (Zeff) of the ilm. The polyester base of XR-RV3 ilm has higher Zeff and physical density compared to EBT2, to increase its sensitivity in the kilo-voltage ( luoroscopic) energy range (6) . XR-RV3 is used for luoroscopy entrance dose measurement.…”

Section: Introductionmentioning

confidence: 99%

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Dosimetric comparison between XR-RV3 and EBT2 radiochromic film in megavoltage photon beams

Setilo

Plessis

2016

IJRR

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Background: Radiochromic film is used for radia on dose measurement, XR-RV3 is used in fluoroscopy and EBT2 film in radia on therapy. The aim was to determine if the dosimetric proper es of these two films are comparable in megavolt photon beams. Materials and Methods: Comparison measurements included: calibra on curves, heterogeneous phantom dose profiles, and nasopharynx dose distribu on measurement. Results: Both film types required 24 hours to stabilize. Their heterogeneous phantom dose profiles were similar, and their dose distribu ons for a nasopharynx treatment were within 3%/3mm. Conclusion: Dose distribu ons between both films showed good correla on and XR-RV3 film can be used in radiotherapy for quality control checks.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dosimetric comparison between XR-RV3 and EBT2 radiochromic film in megavoltage photon beams

Setilo

Plessis

2016

IJRR

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“…Investigation of orientation test of XR-RV3 film was done by McCabe et al 2011. They shown that the film response to kV X-ray was much influenced by the orientation of film.…”

Section: B Orientation Test Of Filmmentioning

confidence: 99%

“…The sensitivity of gafchromic film XR-RV3 with size of 35.56 cm x 43.18 cm is in the range of 0.01Gy to 30 Gy within energy range of 30 keV to 30 MeV. This film is dedicated for measuring entrace dose during interventional fluoroscopy (Blair et al 2009;McCabe et al 2011).…”

Section: Introductionmentioning

confidence: 98%

The Characteristics and Implementation of XR-RV3 GafchromicFilm for Radiotherapy Dosimetry

et al. 2015

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Abstract-The purpose of this study is to compare the dosimetry characterization of XR-RV3 to EBT2 gafchromic film and also to implement both films in order to verify the dose of radiotherapy on IMRT and VMAT. The film response of each energies (foton 6 MV, 10 MV and Cobalt-60) was measured over the dose levels from 50 cGy to 10 Gy. Each film piece was scanned using EPSON Perfection V700 flatbed scanner, 48-bit color, 75 dpi spatial resolution. The data were analyzed using FilmQA Pro for each images with ROI size 3 x 3 cm 2 . Furthermore, the evaluation of targeted dose is determined by putting films of Gafchromic XR-RV3 and EBT2 on Rando Alderson slab fantom to simulate prostate cancer. The experiment was performed with Varian Clinac Trilogy, Inc. Two cases of IMRT and VMAT plans were made using Eclipse TPS ver. 10. Exposed Gafchromic films was scanned using Epson Perfection V700 into (.TIF) format in 720dpi and RGB 48 bit was analyzed by using in-house algorithm and FilmQA pro. The comparison between EBT2 and XR-RV3 Gafchromic films were used to obtain average dose in the form of histogram curve. From this study, the result revealed that there was no significant difference in characteristics response between XR-RV3 and EBT2 film with standard deviation of ±3%. The energy dependence of XR-RV3 and EBT2 film was found to be relatively small within measurement uncertainties ±1%. The dependence of XR-RV3 film side orientation is negligibly small with the standard deviation of 0.2. On the other hand, the percentage of errors in the case of verification of prostate cancer toward the planned dose were -4.85% in EBT2 Gafchromic films and -1.94% in the XR-RV3 Gafchromic films on IMRT technique, whereas for VMAT were -4.48% on EBT2 Gafchromic films and -7.47% on XR-RV3 Gafchromic films.

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Validation of a method for estimating peak skin dose from CT‐guided procedures

Jones

Kisiel

Rong

et al. 2021

J Applied Clin Med Phys

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A method for estimating peak skin dose (PSD) from CTDIvol has been published but not validated. The objective of this study was to validate this method during CT‐guided ablation procedures. Radiochromic film was calibrated and used to measure PSD. Sixty‐eight patients were enrolled in this study, and measured PSD were collected for 46 procedures. CTDIvol stratified by axial and helical scanning was used to calculate an estimate of PSD using the method [1.2 × CTDIvol(helical) + 0.6 × CTDIvol(axial)], and both calculated PSD and total CTDIvol were compared to measured PSD using paired t‐tests on the log‐transformed data and Bland‐Altman analysis. Calculated PSD were significantly different from measured PSD (P < 0.0001, bias, 18.3%, 95% limits of agreement, −63.0% to 26.4%). Measured PSD were not significantly different from total CTDIvol (P = 0.27, bias, 3.97%, 95% limits of agreement, −51.6% to 43.7%). Considering that CTDIvol is reported on the console of all CT scanners, is not stratified by axial and helical scanning modes, and is immediately available to the operator during CT‐guided interventional procedures, it may be reasonable to use the scanner‐reported CTDIvol as an indicator of PSD during CT‐guided procedures. However, further validation is required for other models of CT scanner.

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Calibration of GafChromic XR‐RV3 radiochromic film for skin dose measurement using standardized x‐ray spectra and a commercial flatbed scanner

Cited by 75 publications

References 44 publications

Dosimetric comparison between XR-RV3 and EBT2 radiochromic film in megavoltage photon beams

Dosimetric comparison between XR-RV3 and EBT2 radiochromic film in megavoltage photon beams

The Characteristics and Implementation of XR-RV3 GafchromicFilm for Radiotherapy Dosimetry

Validation of a method for estimating peak skin dose from CT‐guided procedures

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