Key result
Updated French national reference levels for kerma-area product were estimated at 36 Gy.cm² for coronary angiography and 78 Gy.cm² for percutaneous coronary intervention.
Observational (n=93,451)
Yes
Updated French national reference levels for radiation doses in coronary angiography and PCI demonstrate a trend toward dose reduction and highlight the potential need for sex-specific reference levels.
May aid radiation dose optimization in French cath labs; leaves open need for sex-specific reference levels.
The objective of this study was to estimate the French national updated reference levels (RLs) for coronary angiography (CA) and percutaneous coronary intervention (PCI) by a dose audit from a large data set of unselected procedures and in standard-sized patients. Kerma-area product (PKA), air kerma at interventional point (Ka,r), fluoroscopy time (FT), and the number of registered frames (NFs) and runs (NRs) were collected from 51 229 CAs and 42 222 PCIs performed over a 12-month period at 61 French hospitals. RLs estimated by the 75th percentile in CAs and PCIs performed in unselected patients were 36 and 78 Gy.cm² for PKA, 498 and 1285 mGy for Ka,r, 6 and 15 min for FT, and 566 and 960 for NF, respectively. These values were consistent with the RLs calculated in standard-sized patients. The large difference in dose between sexes leads us to propose specific RLs in males and females. The results suggest a trend for a time-course reduction in RLs for interventional coronary procedures.
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Georges et al. (2016) conducted an observational in Patients undergoing coronary angiography and percutaneous coronary intervention (n=93,451). Coronary angiography and percutaneous coronary intervention was evaluated on Reference levels (75th percentile) for kerma-area product (PKA). Updated French national reference levels for kerma-area product were estimated at 36 Gy.cm² for coronary angiography and 78 Gy.cm² for percutaneous coronary intervention.
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