RSNA 2011: MRA road mapping greatly facilitates uterine fibroid embolization
Published
01 November 2011
| Article by Excerpta Medica
| Tags:
uterine-fibroids,
radiation-dose
RSNA 2011: MRA road mapping greatly facilitates uterine fibroid embolization
Relative to contrast angiography, a technique that employs real-time fusion of a patient’s previous scan, whether acquired with computed tomography (CT) or magnetic resonance (MR), with a live fluoroscopy stream allows the interventionist to streamline uterine fibroid embolization. The technique was likened to global positioning systems (GPS). The synchronization of the two images to create three-dimensional (3D) magnetic resonance angiography (MRA) helps facilitate the embolization. In a study that compared a series of patients whose procedure was guided with MRA road mapping to patients whose procedure was guided with contrast angiography, both the total dose area product (DAP) and contrast usage were significantly reduced. In the case of DAP, the reduction was 70%. The authors of this study believe the same concept is broadly applicable for other types of interventions.
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