Nishad Nadkarni MD, Presenter: Nothing to Disclose

Vikram S. Dravid MD, Abstract Co-Author: Nothing to Disclose

Anil Syal MD, Abstract Co-Author: Nothing to Disclose

Atul Gupta MD, Abstract Co-Author: Nothing to Disclose

To compare physician dose, patient dose, procedure time, contrast and fluoro time using the conventional 2D technique for uterine fibroid embolization (UFE) versus a novel 3D MRA guided UFE technique.

Ten UFE procedures were performed at 2 hospitals in the same health system by 2 interventional radiologists, each with over 10 years of experience using the same imaging equipment and protocols. 5 of these cases were performed using the conventional 2D guidance technique and 5 were performed using a novel 3D MRA guidance technique, which allows real time fusion of a preexisting MRA with the live fluoroscopy stream to create a visual roadmap during UFE. The physician dose (µSv), patient dose (DAP), procedure time (min), non-embolic contrast (mL), and fluoro time (min) were compared.

There was a 94% reduction in average physician dose using 3D MRA guidance (18.6 µSv) versus the conventional 2D technique (308.6 µSv). There was an 83% reduction in average patient radiation dose using 3D MRA guidance (68.5 Gy.cm2) versus 2D technique (401.6 Gy.cm2). A 49% reduction in procedure time was noted using 3D MRA guidance (40 min) versus 2D technique (78 min). A 55% reduction was noted in non-embolic contrast utilized using 3D MRA technique (39 ml) versus 2D technique (86 ml). There was a 57% reduction in fluoroscopy time using 3D MRA guidance (10.8 min) versus 2D technique (24.9 min).

There is a notable and statistically significant reduction (p < 0.05) in physician and patient radiation dose, procedure time, non-embolic contrast utilized and fluoro time using 3D MRA guidance for UFE.

Radiation exposure not only to patient, but also to physician is of great concern. The Novel 3D MRA guidance technique not only reduces radiation to physician and patient, but also reduces procedure time, contrast utilized and fluoroscopy time.

Nadkarni, N, Dravid, V, Syal, A, Gupta, A, Radiation Dose and Contrast Reduction during UFE Using 3D MRA Guidance versus Conventional 2D Technique.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14001708.html