19 April 2017 Quantitative flow and velocity measurements of pulsatile blood flow with 4D-DSA
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Abstract
Time resolved 3D angiographic data from 4D DSA provides a unique environment to explore physical properties of blood flow. Utilizing the pulsatility of the contrast waveform, the Fourier components can be used to track the waveform motion through vessels. Areas of strong pulsatility are determined through the FFT power spectrum. Using this method, we find an accuracy from 4D-DSA flow measurements within 7.6% and 6.8% RMSE of ICA PCVIPR and phantom flow probe validation measurements, respectively. The availability of velocity and flow information with fast acquisition could provide a more quantitative approach to treatment planning and evaluation in interventional radiology.
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Gabe Shaughnessy, Carson Hoffman, Sebastian Schafer, Charles A. Mistretta, Charles M. Strother, "Quantitative flow and velocity measurements of pulsatile blood flow with 4D-DSA", Proc. SPIE 10132, Medical Imaging 2017: Physics of Medical Imaging, 101325R (19 April 2017); doi: 10.1117/12.2254143; https://doi.org/10.1117/12.2254143
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