Objectives: To assess the impact of fusion imaging guidance on fluoroscopy duration and volume of contrast agent used for pulmonary artery embolization.
Methods: Thirty-four consecutive patients who underwent pulmonary artery embolization for pulmonary arterio-venous malformation ( = 28) or hemoptysis ( = 6) were retrospectively included. In the experimental group ( = 15), patients were treated using fusion imaging with 2D/3D registration. In the control group ( = 19), no fusion imaging has been used. Fluoroscopy duration and amount of contrast used were measured and intergroup comparison was performed.
Results: The average volume of contrast agent used for embolization in the fusion group (118.3 ml) was significantly lower than in the control group (285.3 ml) ( < 0.002). The mean fluoroscopy duration was not significantly different between both groups (19.5 min in the fusion group 31.4 min in the control group ( = 0.10)). No significant difference was observed regarding the average X-ray exposure (Air Kerma) ( = 0.68 in the univariate analysis). Technical success rate was 100% for both groups.
Conclusion: Fusion imaging significantly reduces contrast medium volumes needed to perform pulmonary artery embolization. The fluoroscopy duration and the X-ray exposure did not vary significantly.
Advances In Knowledge: CTA-based fusion imaging using 2D-3D registration is a valuable tool for performing pulmonary artery embolization, helpful for planning and guiding catheterization.Compared to the traditional imaging guidance, fusion imaging reduces the volume of contrast agent used.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10607406 | PMC |
| http://dx.doi.org/10.1259/bjr.20220815 | DOI Listing |
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