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Abstract #3863

High Temporal Frame Rate 3D Spiral Head and Neck Magnetic Resonance Angiography: Initial Experience

Bo Xu1, 2, Pascal Spincemaille2, Nanda Deepa Thimmappa2, Martin Prince2, Yi Wang1, 2

1Biomedical Engineering, Cornell University, Ithaca, NY, United States; 2Radiology, Weill Cornell Medical College, New York, United States

Time resolved contrast enhanced intracranial MR angiography is particularly challenging because of the short arterial-venous time interval. In this work, a 3D spiral Temporal Resolution Acceleration with Constrained Evolution Reconstruction (TRACER) acquisition is presented resulting in a very high temporal frame rate head and neck MR angiogram.

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Keywords

acceleration acquisition acquisitions adequate allowing altered angiography aorta array arterial arteries artery assessment away biomedical brain carotid cerebral challenge channel club coil college constrained constraining contains contrast coronal cranial curve curves dataset density determined display distal distance done downward dynamic enable enabled encoding engineering enhanced enhancement equation exceptionally excite external feasibility field find frame frames fully function generating golden guess halfway head healthy highly identify index indicated initial initiation injected injection input inside intensity internal interval iterations jugular just known leaf maintaining martin matrix measured medical middle much neck nonlinear origin pascal patterns peak position posterior previous prince problem projection quality quantitative radiology reconstructed reconstruction resolution resolved sampling scanned sensitivity short significantly simulations slice solved solving spatial spiral spirals stages starting subject subsequent successive temporal text tracer trajectory transform trisodium typical unknown update upslope variable various vein veins vessel vessels view visible visualizing volume volumes volunteers widened widening width widths written