Why the study?
Does an MRI bolus tagging method allow visualization of helical flow in the descending aorta in healthy adults and children?
Does an MRI bolus tagging method allow visualization of helical flow in the descending aorta in healthy adults and children?
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A novel MRI bolus tagging method successfully visualizes the complex helical nature of blood flow in the descending aorta of healthy individuals.
We present a MRI bolus tagging method for exploring the helical nature of blood flow in the aorta. Two image series are collected, the first to quantify longitudinal flow (coronal/sagittal imaging plane-transverse saturation plane), the second to measure rotational flow (transverse imaging plane-coronal/sagittal saturation plane). The experimental protocol has been established in healthy adult volunteers and children with normal vasculature. Our results permit immediate visualization of the unique nature of helical flow in each volunteer. We demonstrate evidence of rapid helical twist, no helical twist, and reversal of twist.
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Hoydu et al. (1994) studied this question.
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