document: A novel approach for the detection of pathlines in X-ray angiograms : the wavefront propagation algorithm Presents a new pathline approach , based on the wavefront propagation principle , and developed in order to reduce the variability in the outcomes of the quantitative coronary artery analysis . This novel approach , called wavepath , reduces the influence of the user-defined start - and endpoints of the vessel segment and is therefore more robust and improves the reproducibility of the lesion quantification substantially . The validation study shows that the wavepath method is totally constant in the middle part of the pathline , even when using the method for constructing a bifurcation or sidebranch pathline . Furthermore , the number of corrections needed to guide the wavepath through the correct vessel is decreased from an average of 0.44 corrections per pathline to an average of 0.12 per pathline . Therefore , it can be concluded that the wavepath algorithm improves the overall analysis substantially
doc_bio_tags: O O O O O O O O O O O O O B I I O O O O O O O O O B I I O O O O O O O O O O O O O O B I I I O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O B I O O O O O O O O B I O O O O O O O O O O O O O O O O O O O B O B I O O O O O O B O O O O O O O B I O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: wavefront propagation principle quantitative coronary artery analysis vessel segment lesion quantification wavepath method bifurcation sidebranch pathline corrections correct vessel wavefront propagation algorithm
abstractive_keyphrases: user-defined startpoints user-defined endpoints x-ray angiograms