Abstract: A method of performing ultrasound motion tracking for determining renal functionality includes obtaining a first and second ultrasound image at different times using an ultrasound probe. The method then identifies a reference region having a reference element at a first position in the first image and at a second position in the second image. The method further identifies regions of interest at first and second positions in the first and second images, the regions of interest including one or more target elements. The processor determines a change in position of the reference element and the regions of interest from the respective first and second positions of the reference region and regions of interest. The processor then determines respective time dependent ultrasound signal intensity values for each of the regions of interest in the first and second ultrasound images, and further determines renal functionality from the time dependent ultrasound signal intensity curve.

Abstract: A method of performing ultrasound motion tracking of a urethra or other pelvic floor structure includes obtaining a plurality of ultrasound images of a urethra or pelvic floor structure, identifying a reference element in the plurality of ultrasound images, and determining one or more regions of interest in the first ultrasound image including a portion of the urethra. A processor determines first and second positions, relative to the reference element, of the regions of interest in the plurality of ultrasound images. The processor further determines a change in position of the urethra from the first and second positions of the regions of interest. The processor may further determine orientations, opening, closing, or other movement of the urethra from the first and second positions of the regions of interest.