Film dosimetry for fluoroscopic procedures: potential errors.

R E Morrell; A T Rogers

doi:10.1093/rpd/nch570

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PubMed · 15933097

Film dosimetry for fluoroscopic procedures: potential errors.

R E Morrell·A T Rogers

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Abstract

Kodak EDR 2 film was calibrated across the range of beam qualities and exposure rates typically used in our cardiac catheterisation laboratory. Its dose-response curve was successfully modelled up to its saturation point of 1 Gy. The consistency of the film's response with film batch, time between exposure and processing processor and day-to-day variations in performance, was investigated. The effects of field size, exposure rate, beam quality and use of the dynamic wedge filter were quantified. The overall uncertainty in dose was estimated to be between -20% and +40%, at 160 mGy. This uncertainty increases as the film approaches its saturation point. In addition, some unusual artefacts were observed.

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Calibration Catheterization Dose-Response Relationship, Radiation Film Dosimetry Fluoroscopy Humans Radiometry Radiotherapy Dosage Radiotherapy Planning, Computer-Assisted Reproducibility of Results Scattering, Radiation Sensitivity and Specificity Time Factors X-Ray Film X-Rays Journal Article

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R E Morrell, A T Rogers. 2005. Film dosimetry for fluoroscopic procedures: potential errors.. https://doi.org/10.1093/rpd%2Fnch570

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