Patent ID: 8320653

Claim:
A method of determining a position of a detection plane relative to a detectable structure, the detectable structure including a first member that is parallel to a second member and a third member connected between the first member and the second member, all of the first member, the second member, and the third member having predefined locations in a first coordinate system defined by the detectable structure, wherein the third member is non-perpendicular to the first member and the second member, the method comprising: generating the detection plane with an ultrasound probe; determining positions of the third member relative to the first member and second member in a second coordinate system for each of a plurality of locations by executing instructions with a processor to evaluate collected position information of intersections through the detection plane of the first, second, and third members at each of the plurality of locations by impinging the detection plane that is in the second coordinate system on the detectable structure at each of the plurality of locations; and determining, for the determined positions of the third member, a position of the third member in the first coordinate system at the intersection at each of the plurality of locations.