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ECR 2013 / C-0789
Measuring thoracic aortic diameter with different MR techniques: concordance of 3D CE-MRA (contrast-enhanced magnetic resonance angiography), 4D-trMRA (time-resolved contrast-enhanced magnetic resonance angiography) and 2D SSPP (steady-state free-precession) in evaluation of thoracic aortic diameter
Congress: ECR 2013
Poster No.: C-0789
Type: Scientific Exhibit
Keywords: Cardiac, Cardiovascular system, Vascular, CT, CT-Angiography, CT-High Resolution, Contrast agent-intravenous, Computer Applications-Virtual imaging, Aneurysms
Authors: A. Gennarelli1, A. Di Sibio1, V. Felli1, S. Carducci2, A. V. Giordano3, E. Di Cesare3, C. Masciocchi3; 1L'Aquila, ITALY/IT, 2L'Aquila (AQ)/IT, 3L'Aquila/IT


All sequences have high levels of inter-operator concordance (ICC>0.9). Especially at aortic bulb level, 4D - trMRA showed the best ICC (0.988), followed by 2D-SSPP (0.978) and by 3DCE-MRA (0.970), although we didn’t found a statistically significant difference between the three sequences in none sites of measurement. Also, in both first group (3DCE-MRA vs 2D-SSPP) and second group (4DTRMRA vs 2D-SSPP), Pearson’s correlation coefficient (r>0.9) and t-test suggest an optimal concordance between the sequences at the same measurement level.

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