Abstract #4471
Efficient Radial Tagging: Undersampled Radial Acquisition with Polar Fourier Transform Reconstruction
Shokoufeh Golshani 1 and Abbas Nasiraei Moghaddam 1,2
1
BME, Amirkabir University of Technology
(Tehran Polytechnic), Tehran, Tehran, Iran,
2
Radiology,
UCLA, Los Angeles, CA, United States
In radial tagging, the information of taglines required
for strain imaging is located on a donut shaped region
in k-space that can be collected efficiently through
radial sampling sequence. In this study, we investigated
the efficiency of radial data acquisition for strain
imaging in conjunction with an adapted PFT
reconstruction algorithm; a Hankel-based transform used
for polar data. Both phantom and human images showed
high robustness of PFT reconstruction against reduced
number of radial data lines. This can be exploited
towards real-time imaging, which is necessary in some
cardiac assessments such as stress test. In addition,
its implementation is adequately fast for in-line
reconstruction.
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