Abstract

Measurement of Dose-Area Product with GafChromic XR Type R Film

Highlights

  • Increasing concern for the potentially high radiation dose in fluoroscopy-guided interventional procedures has led to the use of a variety of techniques to monitor patient dose.[1,2,3,4,5,6] Many Xray machines of recent design are able to provide information on radiation exposure in the form of dose–area product (DAP)

  • Calibration of the dose–area product meter For the Philips Integris V5000 X-ray system, the comparison between the indicated and measured kilovoltage had a maximum difference of 7.8%

  • The limitations and accuracies in using GafChromic XR Type R film as an alternative means to determine DAP were studied in this investigation

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Summary

Introduction

Increasing concern for the potentially high radiation dose in fluoroscopy-guided interventional procedures has led to the use of a variety of techniques to monitor patient dose.[1,2,3,4,5,6] Many Xray machines of recent design are able to provide information on radiation exposure in the form of dose–area product (DAP). A relatively new type of film, the GafChromic XR Type R Dosimetry film (International Specialty Products, Wayne, NJ), was introduced to record skin entrance radiation exposure in interventional radiological procedures. Its ability to record high radiation dose has been demonstrated.[7,8] The GafChromic XR Type R film could be an alternative means to record DAP. Such a possibility was investigated here by placing the film at the output of an X-ray tube assembly and measuring the film response by a handheld reflective-type densitometer and an economical flatbed scanner

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