System and method for estimating arterial pulse wave velocity
First Claim
1. A method comprising:
- receiving an image data set comprising a plurality of images of a subject, from an imaging acquisition device;
determining a blood vessel region in an image from the plurality of images, using an image segmentation technique;
determining a plurality of cross-sectional area values of a blood vessel at a plurality of locations in the blood vessel region, corresponding to a plurality of phases of a cardiac cycle of the subject;
determining a plurality of flow rate values of blood flowing in the blood vessel corresponding to the plurality of cross-sectional area values, based on the image data set;
determining a hemodynamic model for the blood vessel based on the plurality of cross-sectional area values and the plurality of blood flow rate values; and
determining an arterial pulse wave velocity based on the hemodynamic model, wherein the arterial pulse wave velocity is representative of a health condition of the blood vessel.
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Abstract
A method for determining an arterial pulse wave velocity representative of a health condition of a blood vessel includes receiving an image data set comprising a plurality of images of a subject, from an imaging modality. The method also involves determining a blood vessel region in an image from the plurality of images. The method further includes determining a plurality of cross-sectional area values of a blood vessel at a plurality of locations in the blood vessel region, corresponding to a plurality of phases of a cardiac cycle of the subject and determining a plurality of flow rate values of blood flowing in the blood vessel corresponding to the plurality of cross-sectional area values. The method also includes determining a hemodynamic model based on the plurality of cross-sectional area values and the plurality of blood flow rate values and determining the arterial pulse wave velocity based on the hemodynamic model.
15 Citations
19 Claims
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1. A method comprising:
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receiving an image data set comprising a plurality of images of a subject, from an imaging acquisition device; determining a blood vessel region in an image from the plurality of images, using an image segmentation technique; determining a plurality of cross-sectional area values of a blood vessel at a plurality of locations in the blood vessel region, corresponding to a plurality of phases of a cardiac cycle of the subject; determining a plurality of flow rate values of blood flowing in the blood vessel corresponding to the plurality of cross-sectional area values, based on the image data set; determining a hemodynamic model for the blood vessel based on the plurality of cross-sectional area values and the plurality of blood flow rate values; and determining an arterial pulse wave velocity based on the hemodynamic model, wherein the arterial pulse wave velocity is representative of a health condition of the blood vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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an imaging acquisition device; a processor coupled to the imaging acquisition device and configured to; receive an image data set comprising a plurality of images of a subject, from the imaging acquisition device; determine a blood vessel region in an image from the plurality of images, using an image segmentation technique; determine a plurality of cross-sectional area values of a blood vessel, at a plurality of locations in the blood vessel region corresponding to a plurality of phases of a cardiac cycle of the subject; determine a plurality of flow rate values of blood flowing in the blood vessel corresponding to the plurality of cross-sectional area values, based on the image data set; determine a hemodynamic model for the blood vessel based on the plurality of cross-sectional area values and the plurality of blood flow rate values; and determine an arterial pulse wave velocity based on the hemodynamic model, wherein the arterial pulse wave velocity is representative of a health condition of the blood vessel. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer readable medium having instructions to enable at least one processor to:
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receive an image data set comprising a plurality of images of a subject, from an imaging acquisition device; determine a blood vessel region in an image from the plurality of images, using an image segmentation technique; determine a plurality of cross-sectional area values of a blood vessel at a plurality of locations in the blood vessel region corresponding to a plurality phases of a cardiac cycle of the subject; determine a plurality of flow rate values of blood flowing in the blood vessel corresponding to the plurality of cross-sectional area values, based on the image data set; determine a hemodynamic model for the blood vessel based on the plurality of cross-sectional area values and the plurality of blood flow rate values; and determine an arterial pulse wave velocity based on the hemodynamic model, wherein the arterial pulse wave velocity is representative of a health condition of the blood vessel.
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Specification