The linear regression equation is as follows: Vdsa = 1.0069Vfp + 2.8482, where Vdsa is the velocity calculated from 4D-DSA and Vfp is the measurement using the flow probe.
In this paper, we evaluate the feasibility to estimate the pulsatile flow velocity using the four-dimensional (4D) DSA.
The imaging protocol of DSA involves administration of a foreign contrast medium into the blood vessel that opacifies the vasculature during the imaging. Using ...
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Article "Estimating Pulsatile Flow Velocity using Four-Dimensional Digital Subtraction Angiography * " Detailed information of the J-GLOBAL is an ...
Abstract— Digital subtraction angiography (DSA) is the gold standard for diagnosing vascular diseases. Much attention had been attracted on estimating blood ...
Oct 22, 2024 · A Fourier based algorithm was used to identify and follow the pulsatility signal. A Side Band Ratio (SBR) metric was used to reduce uncertainty ...
This is the first attempt to present a physical model and corresponding method to estimate pulsatile flow related parameters from routine angiographic ...
Quantitative 4D-Digital Subtraction Angiography to Assess Changes in ...
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The purpose of this study was to determine the feasibility of using 4D-DSA to quantify changes in hepatic arterial flow and velocity during transarterial ...
Feb 1, 2021 · 4D-DSA provides the user with 3D time-resolved images, allowing observation of a contrast bolus at any desired viewing angle through the vasculature.
artery flow with digital subtraction angiography: validation of an optical flow approach with Doppler ultrasound. AJNR Am J Neuroradiol. 2014;35:156–163. 5 ...