In vivo dosimetry during DSA of the carotid and renal arteries. Deriviation of local DRLs

MR Angiography at 3 Tesla to Assess Proximal Internal Carotid Artery Stenoses: Contrast-Enhanced or 3D Time-of-Flight MR Angiography?

“…Having the high accuracy of MDCTA and the possible technical impairment of DSA in mind [31,32] and knowing the stroke risk [33][34][35][36][37][38][39][40] and the average applied radiation dose of DSA [41][42][43], we decided not to expose our patients to any additional harm, and therefore use MDCTA instead of DSA as our reference standard. Furthermore, it would have been very difficult to obtain an approval by the ethics committee for a DSA study with our aforementioned patient population, as DSA is not generally indicated in patients with ICA stenoses.…”

Renal Denervation for Refractory Hypertension - Technical Aspects, Complications and Radiation Exposure

“…Once the interventionalist was familiar with the procedure, we achieved a DAP of 4796 cGY*cm² (range: 1076 -21 371) and a liberally estimated effective dose of 15.7 mSv, which is within the range of published dose levels for renal artery angiographic procedures. Bor et al reported a dose of 7300 cGY×cm² (range: 2520 -17 150) for purely diagnostic angiographies of the renal arteries performed with a somewhat older angiography system, while Topaltzikis et al estimated the mean effective dose of diagnostic angiographies to be 15.9 mSv (range: 5.3 -32.6) [21,22].…”