Determining speed-of-sound factors in ultrasound images of a body
AssigneeBrainlab AG
InventorMartin Haimerl
Life of this patent
Estimating the term…
Abstract
A method for determining speed-of-sound factors in ultrasound images of a body, includes: capturing at least two ultrasound images of an internal body region from different directions; registering the at least two ultrasound images with respect to a corresponding region in a body reference model; comparing two-dimensional registrations of each of the at least two ultrasound images with a registration of at least one other ultrasound image captured from a different direction, or with another reference registration; and determining the speed-of-sound factor for each individual ultrasound direction from the comparison of reference model point distances for a particular registered structure.
Claims18
A method for determining speed-of-sound factors in ultrasound images of a body, comprising:
- capturing at least two ultrasound images of an internal body region from different directions;
- registering the at least two ultrasound images with respect to a corresponding region in a body reference model;
- comparing the registrations of each of the at least two ultrasound images with a registration of at least one other ultrasound image captured from a different direction, or with another reference registration;
- and
- determining the speed-of-sound factor for each individual ultrasound direction from the comparison of reference model point distances for a particular registered structure.
A computer program embodied on a computer readable medium for determining speed-of-sound factors in ultrasound images of a body, comprising:
- code that directs the capture of at least two ultrasound images of an internal body region from different directions;
- code that registers the at least two ultrasound images with respect to a corresponding region in a body reference model;
- code that compares the registrations of each of the at least two ultrasound images with a registration of at least one other ultrasound image captured from a different direction, or with another reference registration;
- and
- code that determines the speed-of-sound factor for each individual ultrasound direction from the comparison of reference model point distances for a particular registered structure.
A method for determining speed-of-sound factors in ultrasound images of a body, comprising:
- capturing a first ultrasound image of at least one point from a first direction of view;
- capturing a second ultrasound image of the at least one point from a second direction of view, wherein the second direction of view is different from the first direction of view;
- ascertaining an actual location of the at least one point based on an intersection of the first direction of view and the second direction of view;
- and
- determining the speed-of-sound factors for at least one of the first or second direction of views based on the actual position and a perceived position of the at least one point.
Dependencies are inferred from the claim text.