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Abstract #0523

3D-Angiograms from 4 MR-Projections: A Quantitative Analysis

MAGNA25Alexander Brunner1, Lei Zheng2, Alexander Zyl2, Florian Maier1, Wolfhard Semmler1, Jrgen Hesser2, Michael Bock1, 3

1Dept. of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany; 2Experimental Radiation Oncology, University Medical Center Mannheim, Heidelberg University, Mannheim, Germany; 3Department of Radiology - Medical Physics, University Hospital Freiburg, Freiburg, Germany

In real-time applications such as intravascular interventions the acquisition of 3D angiograms is challenging as both image acquisition and 3D reconstruction need to be performed in less than 1 s. In this work, we present a new acquisition and reconstruction concept for 3D angiograms which combines a fast projection acquisition pulse sequence with a multi-plane reconstruction. The approach was evaluated on a vessel bifurcation phantom and quantitatively compared to a high resolution dataset of the phantom. We demonstrated that the reconstruction of 3D-angiograms at frame rates suitable for real-time applications (e.g. intravascular interventions) is feasible.

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