Automated determination of arteriovenous ratio in images of blood vessels
AssigneesUniversity of Iowa Research Foundation, The United States of America as represented by the Secretary of the Department of Veterans Affairs
InventorsMichael D. Abramoff, Melndert Niemeijer, Xiayu Xu, Milan Sonka
Life of this patent
Estimating the term…
Abstract
The methods and systems provided can automatically determine an Arteriolar-to-Venular diameter Ratio, AVR, in blood vessels, such as retinal blood vessels and other blood vessels in vertebrates. The AVR is an important predictor of increases in the risk for stroke, cerebral atrophy, cognitive decline, and myocardial infarct.
Claims22
A method for automatic determination of arteriovenous ratio (AVR) in tissue, comprising:
- receiving an image;
- detecting a region of interest in the image;
- identifying arteries and veins in the region of interest;
- determining vessel width measurements for the identified arteries and veins;
- and
- estimating an arteriovenous ratio (AVR), from the vessel width measurements.
A system for automatic determination of arteriovenous ratio (AVR), comprising:
- a memory;
- and
- a processor, coupled to the memory, wherein the processor is configured for performing steps comprising,
- receiving an image,
- detecting a region of interest in the image,
- identifying arteries and veins in the region of interest,
- determining vessel width measurements for the identified arteries and veins, and
- estimating an arteriovenous ratio (AVR), from the vessel width measurements.
A computer readable medium having computer executable instructions embodied thereon for automatic determination of arteriovenous ratio (AVR), the computer executable instructions comprising:
- a memory;
- and
- a processor, coupled to the memory, wherein the processor is configured for performing steps comprising,
- receiving an image,
- detecting a region of interest in the image,
- identifying arteries and veins in the region of interest,
- determining vessel width measurements for the identified arteries and veins, and
- estimating an arteriovenous ratio (AVR), from the vessel width measurements.
Dependencies are inferred from the claim text.