Cardiac flow quantification with volumetric imaging data
AssigneesSiemens Medical Solutions USA, Inc., Siemens Aktiengesellschaft
InventorsYang Wang, Bogdan Georgescu, Saurabh Datta, Dorin Comaniciu
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Abstract
A method quantifies cardiac volume flow for an imaging sequence. The method includes receiving data representing three-dimensions and color Doppler flow data over a plurality of frames, constructing a ventricular model based on the data representing three-dimensions for the plurality of frames, the ventricular model including a sampling plane configured to measure the cardiac volume flow, computing volume flow samples based on the sampling plane and the color Doppler flow data, and correcting the volume flow samples for aliasing based on volumetric change in the ventricular model between successive frames of the plurality of frames.
Claims22
A method of quantifying cardiac volume flow for an imaging sequence, the method comprising:
- receiving data representing three-dimensions and color Doppler flow data over a plurality of frames;
- constructing a ventricular model based on the data representing three-dimensions for the plurality of frames, the ventricular model comprising a sampling plane configured to measure the cardiac volume flow;
- computing volume flow samples based on the sampling plane and the color Doppler flow data;
- and
- correcting the volume flow samples for aliasing based on volumetric change in the ventricular model between successive frames of the plurality of frames.
A system for quantifying cardiac volume flow for an imaging sequence, the system comprising:
- an image acquisition system configured to capture data representing three dimensions and color Doppler flow data over a plurality of frames;
- and
- a processor in communication with the image acquisition system to receive the data representing three dimensions and the color Doppler flow data and configured to:
- construct a ventricular model based on the data representing three dimensions, the ventricular model being configured to track motion of a ventricular boundary between successive frames of the plurality of frames;
- define a sampling plane based on the ventricular model for a first frame of the plurality of frames, the sampling plane being configured to measure the cardiac volume flow;
- adjust the sampling plane for a second frame of the plurality of frames based on the motion tracked by the ventricular model;
- and
- sample the color Doppler flow data for the second frame via the adjusted sampling plane.
An ultrasound apparatus for quantifying cardiac volume flow for an imaging sequence, the ultrasound apparatus comprising:
- an ultrasound beamformer configured to generate respective scan signals for a plurality of frames;
- a B-mode detector in communication with the ultrasound beamformer and configured to generate three-dimensional (3D) ultrasound image data from the scan signals;
- a flow estimator in communication with the ultrasound beamformer and configured to generate flow data from the scan signals;
- and
- a processor in communication with the B-mode detector and the flow estimator to receive the 3D ultrasound image data and the flow data and configured to:
- construct a ventricular model based on the 3D ultrasound image data, the ventricular model being configured to track motion of a ventricular boundary between successive frames of the plurality of frames;
- define a sampling plane based on the ventricular model for a first frame of the plurality of frames, the sampling plane being configured to measure the cardiac volume flow;
- adjust the sampling plane for a second frame of the plurality of frames based on the motion tracked by the ventricular model;
- compute the cardiac volume flow for the second frame based on the adjusted sampling plane and the color Doppler flow data;
- and
- correct the computed cardiac volume flow for aliasing based on volumetric change in the ventricular model between the first and second frames of the plurality of frames.
Dependencies are inferred from the claim text.