Koninklijke Philips Corporation N.v.

Paul Klahr

Randall Peter Luhta

Scott Kenneth Pohlman

Ekta Dhawal Dharaiya

Adam Jacob Covitch

Jeffrey Harold Yanof

Dave Hoffmeyer

Andy Ivan

A method includes obtaining a signal that includes a plurality of cycles and generating a map that maps motion phases to the signal based on both an amplitude and a slope of the signal. A system includes a processor that identifies a set of motion signal timestamps, for a plurality of motion cycles in a motion signal indicative of cyclic motion of a moving object, based on a predetermined motion phase of interest and a phase-to-amplitude/slope mapping, wherein the set of motion signal timestamps correspond to a common signal amplitude. A method include identifying a peak of a plurality of peaks in a motion cycle of a noisy cyclic signal having irregular periodicity, wherein the peak corresponds to a point lying between two points with amplitudes below a predetermined threshold, comparing points before and after the peak with the peak, and identifying the peak as a local maximum when the peak is greater than the points.

Phase-to-amplitude/slope mapping

A method includes performing a contrast enhanced computed tomography (CT) scan of tissue of interest of a subject, with an imaging system having a radiation source and a detector array, in which a peak contrast enhancement of the tissue of interest, a full range of motion of the tissue of interest, and an entire volume of interest of the tissue of interest are concurrently imaged during a single rotation of the radiation source and the detector array of the imaging system over an entire or a predetermined sub-portion of a breathing cycle.

4D contrast enhanced computed tomography (CT)

A method includes performing a contrast enhanced computed tomography (CT) scan of tissue of interest of a subject, with an imaging system () having a radiation source () and a detector array (), in which a peak contrast enhancement of the tissue of interest, a full range of motion of the tissue of interest, and an entire volume of interest of the tissue of interest are concurrently imaged during a single rotation of the radiation source and the detector array of the imaging system over an entire or a predetermined sub-portion of a breathing cycle.

A method ( ) and apparatus ( ) are provided for planning an executing minimally invasive procedures for in-vivo placement of objects within the body of a patient. The method and apparatus enable non-invasive pre-operation virtual seed placement and dose distribution planning using visualization information showing a patient's anatomy together with a set of single point targets ( ) within the patient's body and a corresponding set of trajectories ( ) through the skin and body of the patient leading to the selected target points. For enhanced visualization, multiplanar reformatted images ( ) are derived from CT image data sets and are angled to always contain the plane of the virtual needle ( ) in the pseudo-axial image and its 90 degree slice counterpart. In an implementation stage, a stereotactic arm ( ) spatially referenced to the patient's data set acts a needle guide ( ) and is used to locate preplanned image planes containing virtual seed deposition points. A physical needle ( ) is aligned with preplanned virtual needle trajectories ( ) so that one or more seeds or other objects can be precisely placed within the patient's body.

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Beachwood, OH, United States of America

Paul Klahr