Variations of Patient Doses in Interventional Examinations at Different Angiographic Units

Abstract

Interventional radiologists should measure patient doses for their examinations. If there is a lack of necessary instrumentation for this purpose, then published dose reports should be used in order to predict the dose levels from some of the exposure parameters. Patient dose information should include not only the measured quantity but also the measured radiation output of the X-ray unit and exposure parameters used during radiographic and fluoroscopic exposures.

Dose-Area Product to Patients During Stent-Graft Treatment of Thoracic and Abdominal Aortic Aneurysms

“…DAP is a simple and accurate method that provides the interventional radiologist with a good estimation of the patient's relative risk for stochastic effects and reflects the air kerma radiation field size product at the patient's skin (Ad den Boer et al 2001;Ashleigh et al 2000;Bor et al 2004Bor et al , 2006Efstathopoulos et al 2004;European Commission 1996;Faulkner et al 1986;Fransson and Persliden 2000;Parodi et al 1997;Katritsis et al 2000;van de Putte et al 2000;Vano et al 2001a and b).…”

Patient radiation exposure during percutaneous endovascular revascularization of the lower extremity

“…As shown in Table IV, previously reported radiation doses in lower extremity endovascular interventions are of the same magnitude as in the present report. 13,15,19,25,35,36 It must also be noted that while it is known that one of the most important factors affecting radiation dose in a procedure is the operator, 7 we did not find significant differences between our various operators. We analyzed our operators' performance in several control procedures as a measure of their general irradiation behavior.…”

“…However, radiation dose in purely diagnostic procedures is lower than when an intervention is performed. 12,14,15,17,[19][20][21][22][23][27][28][29] Our results can be viewed in the context of radiation doses associated with other imaging studies patients commonly undergo. The mean DAP value obtained in this study for interventional pelvic procedures (179.6 Gy*cm 2 ) was higher than the patient mean DAP reported Percentages for patient and procedure characteristics were calculated from the total number of available data for any respective dataset.…”

“…11 Also, radiation exposure during lower extremity endovascular interventions have been reported. [12][13][14][15][16][17][18][19][20][21][22][23][24] Factors found to be associated with radiation in these procedures included operator skill, the equipment being used and patient clinical characteristics. 7 Radiation dose has not been reported in relation to lesion distribution or to specific procedure characteristics.…”

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].…”