Microvessel size quantification for parametric assessment using contrast enhanced ultrasound
AssigneeKoninklijke Philips N.V.
InventorsGabriel Hyman, Iason Zacharias Apostolakis, Thanasis Loupas, Elizabeth Herbst
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Abstract
An ultrasound imaging system acquires, stores, and displays a sequence of ultrasound images of microvasculature acquired during a cycle of contrast agent wash-in and wash-out. The sequence of images is recalled from memory and a region of interest containing microvessels in one of the images is selected using a user interface. The sizes of the microvessels in the region of interest are measured. A slider control on the user interface is manipulated to select a range of microvessel sizes in the region of interest for assessment.
Claims19
An ultrasonic diagnostic imaging system for conducting contrast-enhanced ultrasound imaging and assessment of microvasculature comprising:
- an ultrasound probe adapted to acquire ultrasonic echo signals from an image field experiencing a flow of a microbubble contrast agent;
- a beamformer coupled to the ultrasound probe and adapted to produce beamformed echo signals;
- a contrast image processor coupled to the beamformer, and adapted to produce images of microvessels perfused with the microbubble contrast agent;
- an image display coupled to the contrast image processor and adapted to display the images of the microvessels perfused with the microbubble contrast agent;
- a Cineloop memory, coupled to the contrast image processor, and adapted to store a sequence of the images of anatomy perfused with the microbubble contrast agent acquired during wash-in of the microbubble contrast agent;
- and
- a microvessel measurement & selection processor, coupled to the Cineloop memory, and adapted to enable selection of a group of microvessels for measurement and to measure sizes of the microvessels, wherein the microvessel measurement & selection processor is further adapted to enable selection of a range of microvessel sizes for assessment.
A method for conducting contrast-enhanced ultrasound imaging and assessment of microvasculature comprising:
- acquiring with an ultrasound system a sequence of images of microvessels perfused with a micro-bubble contrast agent;
- storing the sequence of images in a Cineloop memory;
- automatically measuring a size of each of the microvessels;
- selecting in response to a user interface input a range of sizes of the microvessels for display;
- and
- displaying only the microvessels with a size within the range of sizes in at least one of the sequence of images.
Dependencies are inferred from the claim text.