Vascular data processing and image registration systems, methods, and apparatuses

Abstract

In part, the invention relates to processing, tracking and registering angiography images and elements in such images relative to images from an intravascular imaging modality such as, for example, optical coherence tomography (OCT). Registration between such imaging modalities is facilitated by tracking of a marker of the intravascular imaging probe performed on the angiography images obtained during a pullback. Further, detecting and tracking vessel centerlines is used to perform a continuous registration between OCT and angiography images in one embodiment.

Description

technical field [0001] In part, the present invention relates generally to the field of imaging and data collection of the vasculature and surrounding vasculature. Background technique [0002] Interventional cardiologists incorporate a variety of diagnostic tools during catheterization procedures in order to design, guide, and evaluate therapy. Generally, angiographic imaging of blood vessels is performed using fluoroscopy. In turn, physicians use such vascular imaging to diagnose, localize and treat vascular disease during interventions such as bypass surgery or stent implantation. Intravascular imaging techniques such as optical coherence tomography (OCT) and acoustic techniques such as intravascular ultrasound (IVUS), among others, can also be used instead of or in combination with fluoroscopy to obtain high-level information about the vascular condition of a given subject. Valuable tool for resolution data. [0003] Fractional flow reserve (FFR) can also be used to e...

AI Technical Summary

Problems solved by technology

Unfortunately, the obvious user interaction during registration makes the operation laborious, such as the need to manually match corresponding points in the image, and the long waiting period for the algorithm to return the registration and finally verify the results, making this method unusable in many Not practical in a clinical setting

Additionally, other methods use data from sources that are not contemporaneous or controlled by a third party, resulting in time irregularities

In addition, due to the use of contrast agents such as dyes with some intravascular imaging modalities that interfere with other non-invasive imaging modalities, imaging artifacts and imaging errors can arise that interfere with registration between such modalities

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