A cardiac-triggered free-breathing three-dimensional balanced fast field-echo projection magnetic resonance (MR) angiographic sequence with a two-dimensional pencil-beam aortic labeling pulse was developed for the renal arteries. For data acquisition during free breathing in eight healthy adults and seven consecutive patients with renal artery disease, real-time navigator technology was implemented. This technique allows high-spatial-resolution and high-contrast renal MR angiography and visualization of renal artery stenosis without exogenous contrast agent or breath hold. Initial promising results warrant larger clinical studies.
- Magnetic resonance (MR), motion studies
- Magnetic resonance (MR), three-dimensional
- Magnetic resonance (MR), vascular studies
- Renal arteries, MR
- Renal arteries, stenosis or obstruction
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging