Use of GAFCHROMIC XR type R films for skin-dose measurements in interventional radiology: Validation of a dosimetric procedure on a sample of patients undergone interventional cardiology

Canne, Stefania Delle; Carosi, Alessandra; Bufacchi, A.; Malatesta, T.; Capperella, R.; Fragomeni, R.; Adorante, N.; Bianchi, Silvio Diego; Begnozzi, L.

doi:10.1016/s1120-1797(06)80004-9

Cited by 30 publications

(13 citation statements)

References 25 publications

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“…Radiochromic films have been studied [62] and successfully employed to measure dose within diagnostic energy range during diagnostic CT scans [63], CBCT acquisitions [64], and interventional radiology procedures [65]. Figure 7h represents dose profiles measured with XR-QA GAFCHROMICä film strips laced between humanoid Rando phantom sections within pelvic region during CBCT image acquisition, commonly employed n he course of Image Guided Radiotherapy (IGRT).…”

Section: Radiochromic Film Applicationsmentioning

confidence: 99%

Radiochromic film dosimetry: Past, present, and future

2011

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Section: Radiochromic Film Applicationsmentioning

confidence: 99%

Radiochromic film dosimetry: Past, present, and future

2011

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“…In recent years, ISP has provided the medical physics community with a series of film type dosimeters which have found niche uses in therapeutic and diagnostic radiology. Historically these have included MD-55 and HS film [6][7][8][9][10][11][12] , ISP's films designed specifically for radiotherapy applications where large doses (up to 30 Gy) are required, XR-R films [13][14][15] for high dose diagnostic imaging applications through to films such as XRQA [16][17] which is designed for low dose assessment at kilovoltage x-ray energies. Probably the most used film for radiation dosimetry in therapy applications has been Gafchromic EBT film [18][19][20][21][22][23][24] .…”

Section: Introductionmentioning

confidence: 99%

Dose and absorption spectra response of EBT2 Gafchromic film to high energy x-rays

Butson

Cheung

et al. 2009

Australas. Phys. Eng. Sci. Med.

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With new advancements in radiochromic film designs and sensitivity to suit different niche applications, EBT2 is the latest offering for the megavoltage radiotherapy market. New construction specifications including different physical construction and the use of a yellow coloured dye has provided the next generation radiochromic film for therapy applications. The film utilises the same active chemical for radiation measurement as its predecessor, EBT Gafchromic. Measurements have been performed using photo spectrometers to analyse the absorption spectra properties of this new EBT2 Gafchromic, radiochromic film. Results have shown that whilst the physical coloration or absorption spectra of the film, which turns yellow to green as compared to EBT film, (clear to blue) is significantly different due to the added yellow dye, the net change in absorption spectra properties for EBT2 are similar to the original EBT film. Absorption peaks are still located at 636nm and 585nm positions. A net optical density change of 0.590 +/- 0.020 (2SD) for a 1 Gy radiation absorbed dose using 6 MV x-rays when measured at the 636nm absorption peak was found. This is compared to 0.602 +/- 0.025 (2SD) for the original EBT film (2005 Batch) and 0.557 +/- 0.027 (2009 Batch) at the same absorption peak. The yellow dye and the new coating material produce a significantly different visible absorption spectra results for the EBT2 film compared to EBT at wavelengths especially below approximately 550nm. At wavelengths above 550nm differences in absolute OD are seen however, when dose analysis is performed at wavelengths above 550nm using net optical density changes, no significant variations are seen. If comparing results of the late production EBT to new production EBT2 film, net optical density variations of approximately 10 % to 15 % are seen. As all new film batches should be calibrated for sensitivity upon arrival this should not be of concern.

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“…Bordier et al (5) claims that the accuracy in indicated maximum ESAK is within 25% verified with phantom measurements. A suitable method to estimate ESAK is to use Gafchromic film placed in direct contact with the patient's body during the interventional procedure, sampling all exposures (6,7,8) . However, this method is complicated and time consuming and cannot be used on a regular basis.…”

Section: Introductionmentioning

confidence: 99%