Abstract
We present a new method for reconstructing a 3D flow field from multiple 3D Pulsed Wave Doppler echo images. A weakness of Doppler imaging is that only a 1D projection of the true 3D velocity (parallel to the echo beam direction) is measured. We propose a method which uses registered multiple Doppler views to calculate 3D flow vectors using a Least Mean Squares (LMS) minimisation process. Flow is expressed in a B-Spline basis, which allows scalability, regularisation and incorporation of derivative-based physical constraints. We investigate the reconstruction accuracy with respect to the amount of regularisation. We report experiments on phantom data and real cardiac data from a healthy volunteer, where we reconstructed flow through mitral and aortic valves. Results show that 3D flow can be reconstructed with an accuracy of approximately 20% of the 95(th) percentile of the velocity projection with our method.
| Original language | English |
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| Title of host publication | 2011 IEEE International Symposium on Biomedical Imaging |
| Subtitle of host publication | From Nano to Macro. Proceedings |
| Place of Publication | NEW YORK |
| Publisher | IEEE |
| Pages | 879 - 882 |
| Number of pages | 4 |
| ISBN (Print) | 9781424441280 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 8th IEEE International Symposium on Biomedical Imaging (ISBI) - From Nano to Macro - Chicago, IL Duration: 30 Mar 2011 → 2 Apr 2011 |
Conference
| Conference | 8th IEEE International Symposium on Biomedical Imaging (ISBI) - From Nano to Macro |
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| City | Chicago, IL |
| Period | 30/03/2011 → 2/04/2011 |