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Time-of-flight MR angiography
1Department of Electrical Engineering, Stanford University, California 94305.
Magnetic Resonance in Medicine
|May 1, 1990
Summary
Time-of-flight effects in magnetic resonance angiography (MRA) enable flexible flow sensitization. This technique, combined with other methods, aids in visualizing blood flow for improved diagnostic imaging.
Area of Science:
- Biomedical Engineering
- Medical Imaging
- Physics
Background:
- Time-of-flight (TOF) effects are crucial in magnetic resonance (MR) imaging, relating to blood displacement during excitation.
- Understanding TOF effects is essential for developing advanced MR angiography (MRA) techniques.
Purpose of the Study:
- To explore the application of time-of-flight effects for flexible flow sensitization in MR angiography.
- To review current methods utilizing TOF effects for enhanced blood flow visualization.
Main Methods:
- Combining time-of-flight effects with static material suppression and projection imaging.
- Investigating bolus tracking, flow enhancement by spin replacement, and selective tagging as MRA methods.
Main Results:
- Time-of-flight effects offer a versatile approach to sensitize flow in MR angiography.
- The integration of TOF effects with other techniques improves the depiction of blood flow dynamics.
Conclusions:
- Time-of-flight effects are a key component in advancing MR angiography.
- Further development of TOF-based methods like bolus tracking holds promise for improved MRA.