283 DAP meter and SDR recording verification for angiograph used in cardiology

Abstract

Purpose Aim of this study is evaluation of accuracy of dosimetric parameter and correct registration for angiograph used for cardiological procedure based on current legislation and for future BSS Directive application. Dosimetric data was registered for cardiological procedure acquired during 2 year with SDR (Structured dose report) from angiographic system, with a number of procedure executed of about 1900 exam/year and monitored with a radiation dose monitoring system (RDM). Methods We verify Philips Angiograph Allura FD20 Clarity and RDM ELCO Gray Detector. During acceptance test we measure the Dose at interventional reference point parameter and verify the accuracy of DAP and Dose (RP) from the intercomparison between data measured with a Doseguard 100 (RTI ), calibrated for RQA5 and 100 kV beam with additional copper filtration and first hvl of 6.56 mm Al. During Acceptance was verified the DAP calculation described in the document “DAP calculation Model”. The RDM system register “Total DAP value” and “Total number of exposition” with MPPS at the end of the procedure and we verify that the data was correctly registered. Results The values of DAP and Dose (RP) were in agreement with company specification, the calculated DAP parameter has a lower error associated with the inter-comparison measures than KermaXplus camera on the system (TAB 1 and Fig. 1). Data on SDR were accurate and corresponding to angulations and protocols selected. Conclusion Aim of this study is evaluation of accuracy of dosimetric parameter and correct registration for angiograph used for cardiological procedure based on current legislation and for future BSS Directive application. Dosimetric data was registered for cardiological procedure acquired during 2 year with SDR (Structured dose report) from angiographic system, with a number of procedure executed of about 1900 exam/year and monitored with a radiation dose monitoring system (RDM). We verify Philips Angiograph Allura FD20 Clarity and RDM ELCO Gray Detector. During acceptance test we measure the Dose at interventional reference point parameter and verify the accuracy of DAP and Dose (RP) from the intercomparison between data measured with a Doseguard 100 (RTI ), calibrated for RQA5 and 100 kV beam with additional copper filtration and first hvl of 6.56 mm Al. During Acceptance was verified the DAP calculation described in the document “DAP calculation Model”. The RDM system register “Total DAP value” and “Total number of exposition” with MPPS at the end of the procedure and we verify that the data was correctly registered. The values of DAP and Dose (RP) were in agreement with company specification, the calculated DAP parameter has a lower error associated with the inter-comparison measures than KermaXplus camera on the system (TAB 1 and Fig. 1). Data on SDR were accurate and corresponding to angulations and protocols selected.