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Breath-hold, contrast-enhanced, three-dimensional MR angiography
D A Leung1, G C McKinnon, C P Davis
1Magnetic Resonance Imaging Center, Zürich University Hospital, Switzerland.
Radiology
|August 1, 1996
Summary
Breath-hold gadolinium-enhanced magnetic resonance (MR) angiography provides high-resolution 3D time-of-flight angiograms. This technique successfully visualized major arteries and the portal venous system in volunteers.
Area of Science:
- Medical Imaging
- Radiology
- Cardiovascular Imaging
Background:
- Magnetic resonance (MR) angiography is a key non-invasive imaging modality.
- Optimizing breath-hold techniques is crucial for reducing motion artifacts in vascular imaging.
Purpose of the Study:
- To evaluate the efficacy of breath-hold gadolinium-enhanced 3D MR angiography.
- To assess the feasibility of acquiring high-resolution angiograms of various vascular territories.
Main Methods:
- Utilized a high-performance gradient MR imaging system.
- Administered gadoterate meglumin contrast agent (0.4 mmol/kg).
- Acquired 3D time-of-flight angiograms during a 28-second breath-hold interval.
Main Results:
- Successfully acquired high-resolution 3D time-of-flight angiograms in all 10 volunteers.
- Visualized the aorta, renal arteries, pulmonary arteries, pelvic arteries, and portal venous system.
- Demonstrated the feasibility of the breath-hold technique for comprehensive vascular imaging.
Conclusions:
- Breath-hold gadolinium-enhanced 3D MR angiography is effective for detailed vascular visualization.
- The technique allows for high-quality imaging of diverse arterial and venous systems.
- This method holds promise for clinical applications in cardiovascular and abdominal imaging.