Abstract
Background Visualizing blood flow is important in MR-guided interventions (e.g. repairing structural heart defects). We introduce a method, called Virtual Dye Angiography (VDA), to visualize flow in a manner inspired by contrast-enhanced X-ray angiography. Slightly similar to arterial spin labeling, VDA saturates a localized region using multidimensional RF pulses. Unlike phase-contrast velocity mapping, which has unsuitably long acquisition times, VDA can be integrated into existing highcontrast, high-SNR SSFP imaging sequences with minimal modification.
Highlights
Visualizing blood flow is important in MR-guided interventions
We introduce a method, called Virtual Dye Angiography (VDA), to visualize flow in a manner inspired by contrast-enhanced X-ray angiography
Unlike phase-contrast velocity mapping, which has unsuitably long acquisition times, VDA can be integrated into existing highcontrast, high-SNR SSFP imaging sequences with minimal modification
Summary
Visualizing blood flow is important in MR-guided interventions (e.g. repairing structural heart defects). We introduce a method, called Virtual Dye Angiography (VDA), to visualize flow in a manner inspired by contrast-enhanced X-ray angiography. Similar to arterial spin labeling, VDA saturates a localized region using multidimensional RF pulses. Unlike phase-contrast velocity mapping, which has unsuitably long acquisition times, VDA can be integrated into existing highcontrast, high-SNR SSFP imaging sequences with minimal modification
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