AIMS: We describe a new semi-automated method that measures aortic regurgitation (AR) on contrast aortography with the objectives of reducing the inter-observer variability and standardising image acquisition. METHODS AND RESULTS: Aortograms from three participating centres were reviewed to generate the following quality criteria: entire left ventricle and aortic root in view, descending aorta or TOE probe not over-projected, breath hold, no table motion, and adequate contrast opacification of the aortic root. AR was visually graded (Sellers) and was quantified by measuring the area under time-contrast density curves in the aortic root (reference) and the left ventricle. Quality criteria were met in 44 retrospectively identified aortograms and in 22 (69%) of 32 prospectively collected aortograms. The visual AR grade (Sellers) was highly correlated with time-density measurements including relative area under the curve (RAUC) and qRA index (r=0.81 and 0.83, respectively, p<0.001). Inter-observer reproducibility of visual grading was moderate (kappa 0.47-0.60, p<0.001). Inter-observer measurement of RAUC and qRA index were highly correlated (r=0.98, p<0.001) and showed a high level of agreement. CONCLUSIONS: Quantification of aortic regurgitation by measurement of time-density changes on contrast aortography may improve the reproducibility of AR assessment in the catheter laboratory. Steps for standardised aortography acquisition are proposed.
AIMS: We describe a new semi-automated method that measures aortic regurgitation (AR) on contrast aortography with the objectives of reducing the inter-observer variability and standardising image acquisition. METHODS AND RESULTS: Aortograms from three participating centres were reviewed to generate the following quality criteria: entire left ventricle and aortic root in view, descending aorta or TOE probe not over-projected, breath hold, no table motion, and adequate contrast opacification of the aortic root. AR was visually graded (Sellers) and was quantified by measuring the area under time-contrast density curves in the aortic root (reference) and the left ventricle. Quality criteria were met in 44 retrospectively identified aortograms and in 22 (69%) of 32 prospectively collected aortograms. The visual AR grade (Sellers) was highly correlated with time-density measurements including relative area under the curve (RAUC) and qRA index (r=0.81 and 0.83, respectively, p<0.001). Inter-observer reproducibility of visual grading was moderate (kappa 0.47-0.60, p<0.001). Inter-observer measurement of RAUC and qRA index were highly correlated (r=0.98, p<0.001) and showed a high level of agreement. CONCLUSIONS: Quantification of aortic regurgitation by measurement of time-density changes on contrast aortography may improve the reproducibility of AR assessment in the catheter laboratory. Steps for standardised aortography acquisition are proposed.
Authors: Miriam Weisskopf; Lukas Glaus; Nina E Trimmel; Melanie M Hierweger; Andrea S Leuthardt; Marian Kukucka; Thorald Stolte; Christian T Stoeck; Volkmar Falk; Maximilian Y Emmert; Markus Kofler; Nikola Cesarovic Journal: Front Vet Sci Date: 2022-09-02
Authors: M Abawi; P Agostoni; N H M Kooistra; M Samim; F Nijhoff; M Voskuil; H Nathoe; P A Doevendans; S A Chamuleau; K Urgel; J Hendrikse; T Leiner; A C Abrahams; B van der Worp; P R Stella Journal: Neth Heart J Date: 2017-05 Impact factor: 2.380
Authors: Yosuke Miyazaki; Rodrigo Modolo; Mohammad Abdelghani; Hiroki Tateishi; Rafael Cavalcante; Carlos Collet; Taku Asano; Yuki Katagiri; Erhan Tenekecioglu; Rogério Sarmento-Leite; José A Mangione; Alexandre Abizaid; Osama I I Soliman; Yoshinobu Onuma; Patrick W Serruys; Pedro A Lemos; Fabio S de Brito Journal: Arq Bras Cardiol Date: 2018-08 Impact factor: 2.000