Dynamic angiographic imaging
AssigneeLondon Health Sciences Centre Research Inc.
InventorsAaron So, Ting-Yim Lee
Life of this patent
Estimating the term…
Abstract
Described herein is a computer implemented method for dynamic angiographic imaging comprising: obtaining image data comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest; generating at least one time-enhancement curve of the contrast agent based on the image data; determining a blood flow characteristic in the blood vessel of interest based on the time-enhancement curve. Systems for implementing the method and computer readable media incorporating the method are also described.
Claims21
A computer implemented method for dynamic angiographic imaging comprising:
- using a medical imaging software, obtaining CT or MRI image data comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest;
- using a medical imaging software, generating at least one time-enhancement curve of the contrast agent based on the CT or MRI image data, the time-enhancement curve having an upslope and a downslope;
- determining an area under the time-enhancement curve;
- converting the area under the time-enhancement curve to a concentration of the contrast agent in the blood vessel of interest;
- determining a blood flow characteristic in the blood vessel of interest based on a ratio of mass of the contrast agent in the blood vessel of interest and the concentration of the contrast agent in the blood vessel of interest.
A system for dynamic angiographic imaging comprising:
- a memory for storing CT or MRI image data using a medical imaging software comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest;
- a processor configured to generate using a medical imaging software at least one time-enhancement curve of the contrast agent based on the CT or MRI image data, the time-enhancement curve having an upslope and a downslope;
- to determine an area under the time-enhancement curve;
- to convert the area under the time-enhancement curve to a concentration of the contrast agent in the blood vessel of interest;
- and to determine a blood flow characteristic in the blood vessel of interest based on a ratio of mass of the contrast agent in the blood vessel of interest and the concentration of the contrast agent in the blood vessel of interest.
A non-transitory computer readable medium embodying a computer program for dynamic angiographic imaging comprising:
- computer program code using a medical imaging software for obtaining CT or MRI image data comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest;
- computer program code using a medical imaging software for generating at least one time-enhancement curve of the contrast agent based on the CT or MRI image data, the time-enhancement curve having an upslope and a downslope;
- computer program code for determining an area under the time-enhancement curve;
- computer program code for converting the area under the time-enhancement curve to a concentration of the contrast agent in the blood vessel of interest;
- computer program code for determining a blood flow characteristic in the blood vessel of interest based on a ratio of mass of the contrast agent in the blood vessel of interest and the concentration of the contrast agent in the blood vessel of interest.
Dependencies are inferred from the claim text.