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MRI of the Coronary Vessel Wall at 3 T: Comparison of Radial and Cartesian k-Space Sampling

Paul M. Bansmann1, Andrew N. Priest2, Kai Muellerleile3, Alexander Stork1, Gunnar K. Lund4, Michael G. Kaul1 and Gerhard Adam1

1 Department of Diagnostic and Interventional Radiology, Center of Diagnostic Imaging and Intervention, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, Hamburg 20246, Germany.
2 Department of Medical Physics, Cambridge University Hospitals, NHS Foundation Trust, Cambridge, United Kingdom.
3 Department of Cardiology/Angiology, Center of Diagnostic Imaging and Intervention, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
4 Roentgeninstitut, 40476 Duesseldorf, Germany.


Figure 1
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  		Fig. 1 —Example image of slab positioning to reinvert magnetization in region of right coronary artery (dashed lines) in healthy 27-year-old male volunteer.

 

Figure 2
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  		Fig. 2 —Diagram shows 3D turbo field-echo (TFE) sequence. TI = inversion time, TD = trigger delay, Dir = double inversion recovery prepulses, Nav restore = navigator restore, sat = saturation.

 

Figure 3
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  		Fig. 3A —Reformatted right coronary artery vessel wall images of three healthy volunteers. Images were obtained with cartesian (A-C) or radial (D-F) k-space sampling. Images A and D are of 25-year-old man, images B and E are of 25-year-old man, and images C and F are of 24-year-old man.

 

Figure 4
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  		Fig. 3B —Reformatted right coronary artery vessel wall images of three healthy volunteers. Images were obtained with cartesian (A-C) or radial (D-F) k-space sampling. Images A and D are of 25-year-old man, images B and E are of 25-year-old man, and images C and F are of 24-year-old man.

 

Figure 5
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  		Fig. 3C —Reformatted right coronary artery vessel wall images of three healthy volunteers. Images were obtained with cartesian (A-C) or radial (D-F) k-space sampling. Images A and D are of 25-year-old man, images B and E are of 25-year-old man, and images C and F are of 24-year-old man.

 

Figure 6
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  		Fig. 3D —Reformatted right coronary artery vessel wall images of three healthy volunteers. Images were obtained with cartesian (A-C) or radial (D-F) k-space sampling. Images A and D are of 25-year-old man, images B and E are of 25-year-old man, and images C and F are of 24-year-old man.

 

Figure 7
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  		Fig. 3E —Reformatted right coronary artery vessel wall images of three healthy volunteers. Images were obtained with cartesian (A-C) or radial (D-F) k-space sampling. Images A and D are of 25-year-old man, images B and E are of 25-year-old man, and images C and F are of 24-year-old man.

 

Figure 8
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  		Fig. 3F —Reformatted right coronary artery vessel wall images of three healthy volunteers. Images were obtained with cartesian (A-C) or radial (D-F) k-space sampling. Images A and D are of 25-year-old man, images B and E are of 25-year-old man, and images C and F are of 24-year-old man.

 

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