ArticleWorld journal of cardiology2016
Optimal C-arm angulation during transcatheter aortic valve replacement: Accuracy of a rotational C-arm computed tomography based three dimensional heart model.
Article in World journal of cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 7 citations in OpenAlex.
- Optimized aortic root segmentation during transcatheter aortic valve implantation.Frontiers in cardiovascular medicine · 2025Article
- Aortography Keypoint Tracking for Transcatheter Aortic Valve Implantation Based on Multi-Task Learning.Frontiers in cardiovascular medicine · 2021Article
- Current and future aspects of multimodal and fusion imaging in structural and coronary heart disease.Clinical research in cardiology : official journal of the German Cardiac Society · 2018Review
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Authors and funding
10 authors at 4 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
aimTo investigate the accuracy of a rotational C-arm CT-based 3D heart model to predict an optimal C-arm configuration during transcatheter aortic valve replacement (TAVR).
methodsRotational C-arm CT (RCT) under rapid ventricular pacing was performed in 57 consecutive patients with severe aortic stenosis as part of the pre-procedural cardiac catheterization. With prototype software each RCT data set was segmented using a 3D heart model. From that the line of perpendicularity curve was obtained that generates a perpendicular view of the aortic annulus according to the right-cusp rule. To evaluate the accuracy of a model-based overlay we compared model- and expert-derived aortic root diameters.
resultsFor all 57 patients in the RCT cohort diameter measurements were obtained from two independent operators and were compared to the model-based measurements. The inter-observer variability was measured to be in the range of 0°-12.96° of angular C-arm displacement for two independent operators. The model-to-operator agreement was 0°-13.82°. The model-based and expert measurements of aortic root diameters evaluated at the aortic annulus (
conclusionAutomatic segmentation of the aortic root using an anatomical model can accurately predict an optimal C-arm configuration, potentially simplifying current clinical workflows before and during TAVR.
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