Dose area product
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Dose area product (DAP), also called Kerma area product (KAP)[1] is a quantity that reflects not only the dose but also the area of tissue irradiated. Therefore, it may be a better indicator of risk than dose. DAP is expressed in Sievert square centimetres (Gy*cm²)[1] (sometimes mGy*cm² or cGy*cm²).
Coronary angiography and PCI produces expose patient to an average DAP in the range of 20 to 106 Gy*cm² and 44 to 143 Gy*cm² respectively.[2]
References
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- ↑ priory.com RADIATION EXPOSURE IN THE CATH LAB – SAFETY AND PRECAUTIONS Dr S M S Raza, MB BS, MD. First Published October 2006
