title: Dynamic cardiac information from optical flow using four dimensional ultrasound.
abstract: Quantitative analysis of cardiac motion is of great clinical interest in assessing ventricular function. Real-time 3-D (RT3D) ultrasound transducers provide valuable three-dimensional information, from which quantitative measures of cardiac function can be extracted. Such analysis requires segmentation and visual tracking of the left ventricular endocardial border. We present results based on correlation of four-dimensional optical flow motion for temporal tracking of ventricular borders in three dimensional ultrasound data. A displacement field is computed from the optical flow output, and a framework for the computation of dynamic cardiac information is introduced. The method was applied to a clinical data set from a heart transplant patient and dynamic measurements agreed with physiological knowledge as well as experimental results.
authors.affiliation: Department of Biomedical Engineering, Columbia University, New York, NY, USA.
authors.forename: Qi
authors.initials: Q
authors.lastname: Duan
authors.forename: Susan
authors.initials: S
authors.lastname: Herz
authors.forename: Christopher
authors.initials: C
authors.lastname: Ingrassia
authors.forename: Kevin
authors.initials: K
authors.lastname: Costa
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Holmes
authors.forename: Andrew
authors.initials: A
authors.lastname: Laine
authors.forename: Elsa
authors.initials: E
authors.lastname: Angelini
authors.forename: Olivier
authors.initials: O
authors.lastname: Gerard
authors.forename: Shunichi
authors.initials: S
authors.lastname: Homma