Does a flat panel detector reduce the patient radiation dose in interventional cardiology?
An internal audit has been performed to evaluate the patient radiation dose in the clinical use of X-ray cardiac flat panel detector (FPD) systems. Fluoroscopy and image acquisition (cine mode) programs are optimised for low-dose settings. The diagnostic and therapeutic interventional cardiac procedures are performed at 6 pulse s(-1) for fluoroscopy and 15 frames s(-1) for image acquisition. The FPD entrance dose is configured for 29 nGy pulse(-1) in the fluoroscopy mode and 0.10 microGy frame(-1) in the cine mode. From the data collected, the following local reference levels for coronary angiography and angioplasty have been obtained: kerma-area products 23 and 44 Gy cm(2), cumulative doses 376 and 776 mGy, fluoroscopy times 5 and 15.5 min and cine images 617 and 1163 images.
Entente des Hôpitaux Luxembourgeois, 5 rue des Mérovingiens, L-8070 Bertrange, Luxembourg. octavian.dragusin@ehl.lu
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Dragusin
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Breisch
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Bokou
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Beissel
D001822:Body Burden; D002318:Cardiovascular Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology* / Q000601:surgery; D006801:Humans; D008189:Luxembourg / Q000453:epidemiology; D010865:Pilot Projects; D015995:Prevalence; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation / Q000379:methods; D015641:Radiography, Interventional / Q000295:instrumentation* / Q000706:statistics & numerical data*; D011874:Radiometry / Q000706:statistics & numerical data*; D014963:X-Ray Intensifying Screens / Q000706:statistics & numerical data*