System and method for cardiac imaging
First Claim
1. A method for cardiac imaging, comprising:
- creating a database of 3D images having manually segmented regions;
training level-set image processing algorithms to substantially reproduce the shapes of the manually segmented regions using a computer readable medium;
acquiring a non-database 3D image;
segmenting the regions of the non-database image by applying the trained level-set processing algorithms using the computer readable medium, anddetermining from the segmented non-database 3D image at least one of;
a volume of any heart chamber, anda thickness of the wall between any adjoining heart chambers.
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Abstract
Ultrasound systems and methods are described to measure changes in cardiac chamber volumes and organ wall areas, thicknesses, volumes and masses between the cardiac chambers using computer readable media employing image processing algorithms applied to 3D data sets acquired at systole and diastole. The systems for cardiac imaging includes an ultrasound transceiver configured to sense the mitral valve of a heart by Doppler ultrasound, an electrocardiograph connected with a patient and synchronized with the transceiver to acquire ultrasound-based 3D data sets during systole and diastole at a transceiver location determined by Doppler ultrasound affected by the mitral valve, and a computer readable medium configurable to process ultrasound imaging information from the 3D data sets communicated from the transceiver.
65 Citations
42 Claims
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1. A method for cardiac imaging, comprising:
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creating a database of 3D images having manually segmented regions; training level-set image processing algorithms to substantially reproduce the shapes of the manually segmented regions using a computer readable medium; acquiring a non-database 3D image; segmenting the regions of the non-database image by applying the trained level-set processing algorithms using the computer readable medium, and determining from the segmented non-database 3D image at least one of; a volume of any heart chamber, and a thickness of the wall between any adjoining heart chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for cardiac imaging comprising:
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creating a database of 3D images having manually segmented regions; training level-set image processing algorithms to substantially reproduce the shapes of the manually segmented regions using a computer readable medium; acquiring non-database 3D images at systole and diastole; segmenting the regions of the non-database images by applying the trained level-set processing algorithms using the computer readable medium, and determining from the segmented non-database 3D images at least one of; a volume of any heart chamber, a thickness of the wall between any adjoining heart chambers, and a change in volume in any heart chamber between systole and diastole.
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30. A system for cardiac imaging comprising:
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a database of 3D images having manually segmented regions; an ultrasound transceiver configured to deliver ultrasound pulses into and acquire ultrasound echoes from a subject as 3D image data sets; an electrocardiograph to determine the timing to acquire the 3D data sets; and a computer readable medium configured to train level-set image processing algorithms to substantially reproduce the shapes of the manually segmented regions and to segment regions of interest of the 3D data sets using the trained algorithms, wherein at least one cardiac metric from the 3D data sets is determined from the segmented regions of interest. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A system for cardiac imaging comprising:
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an ultrasound transceiver configured to determine the location to acquire ultrasound echo 3D data sets to image the left ventricle of a heart; an electrocardiograph to determine the timing to acquire the 3D data sets at a systole and diastole; and a computer readable medium configured to train level-set image processing algorithms to substantially reproduce the shapes of the manually segmented regions and to segment regions of interest of the 3D data sets using the trained algorithms to determine between systole and diastole at least one of; the thickness of a wall between the left ventricle and at least one of the adjoining heart chambers, the volume of the left ventricle, and the ejection fraction of the left ventricle.
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Specification