OBJECTIVES: This article presents the results of an interobserver validation study of our new T- and Y-shape bifurcation models including their edge segment analyses. BACKGROUND: Over the last years, the coronary artery intervention procedures have been developed more and more toward bifurcation stenting. Because traditional straight vessel quantitative coronary arteriography (QCA) is not sufficient for these measurements, the need has grown for new bifurcation analysis methods. METHODS: In this article, our two new bifurcation analysis models are presented, the Y-shape and T-shape model. These models were designed for the accurate measurement of the clinically relevant parameters of a coronary bifurcation, for different morphologies and intervention strategies and include an edge segment analysis, to accurately measure (drug-eluting) stent, stent edge, and ostial segment parameters. RESULTS: The results of an interobserver validation study of our T-shape and Y-shape analyses are presented, both containing the pre- and post-intervention analyses of each 10 cases. These results are associated with only small systematic and random errors, in the majority of the cases compliant with the QCA guidelines for straight analyses. The results for the edge segment analyses are also very good, with almost all the values within the margins that have been set by our brachytherapy directive. CONCLUSIONS: Our new bifurcation approaches including their edge segment analyses are very robust and reproducible, and therefore a great extension to the field of quantitative coronary angiography.
OBJECTIVES: This article presents the results of an interobserver validation study of our new T- and Y-shape bifurcation models including their edge segment analyses. BACKGROUND: Over the last years, the coronary artery intervention procedures have been developed more and more toward bifurcation stenting. Because traditional straight vessel quantitative coronary arteriography (QCA) is not sufficient for these measurements, the need has grown for new bifurcation analysis methods. METHODS: In this article, our two new bifurcation analysis models are presented, the Y-shape and T-shape model. These models were designed for the accurate measurement of the clinically relevant parameters of a coronary bifurcation, for different morphologies and intervention strategies and include an edge segment analysis, to accurately measure (drug-eluting) stent, stent edge, and ostial segment parameters. RESULTS: The results of an interobserver validation study of our T-shape and Y-shape analyses are presented, both containing the pre- and post-intervention analyses of each 10 cases. These results are associated with only small systematic and random errors, in the majority of the cases compliant with the QCA guidelines for straight analyses. The results for the edge segment analyses are also very good, with almost all the values within the margins that have been set by our brachytherapy directive. CONCLUSIONS: Our new bifurcation approaches including their edge segment analyses are very robust and reproducible, and therefore a great extension to the field of quantitative coronary angiography.
Authors: Arnav Kumar; Olivia Y Hung; Marina Piccinelli; Parham Eshtehardi; Michel T Corban; David Sternheim; Boyi Yang; Adrien Lefieux; David S Molony; Elizabeth W Thompson; Wenjie Zeng; Yasir Bouchi; Sonu Gupta; Hossein Hosseini; Mohamad Raad; Yi-An Ko; Chang Liu; Michael C McDaniel; Bill D Gogas; John S Douglas; Arshed A Quyyumi; Don P Giddens; Alessandro Veneziani; Habib Samady Journal: JACC Cardiovasc Interv Date: 2018-09-26 Impact factor: 11.195
Authors: Pamela S Douglas; Gianluca Pontone; Mark A Hlatky; Manesh R Patel; Bjarne L Norgaard; Robert A Byrne; Nick Curzen; Ian Purcell; Matthias Gutberlet; Gilles Rioufol; Ulrich Hink; Herwig Walter Schuchlenz; Gudrun Feuchtner; Martine Gilard; Daniele Andreini; Jesper M Jensen; Martin Hadamitzky; Karen Chiswell; Derek Cyr; Alan Wilk; Furong Wang; Campbell Rogers; Bernard De Bruyne Journal: Eur Heart J Date: 2015-09-01 Impact factor: 29.983
Authors: Roisin Colleran; Pamela S Douglas; Martin Hadamitzky; Matthias Gutberlet; Lukas Lehmkuhl; Borek Foldyna; Michael Woinke; Ulrich Hink; Jonathan Nadjiri; Alan Wilk; Furong Wang; Gianluca Pontone; Mark A Hlatky; Campbell Rogers; Robert A Byrne Journal: Open Heart Date: 2017-03-22