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MRI contrast media - new developments and trends. CTA vs. MRA
1Department of Diagnostic Radiology, Medizinische Hochschule Hannover, D-30 623 Hannover, Germany.
European Radiology
|January 1, 1997
Summary
Non-invasive magnetic resonance angiography (MRA) and computerised tomographic angiography (CTA) offer alternatives to catheter angiography for vascular disease diagnosis. MRA is preferred for patients with kidney issues, while CTA is faster for acute conditions.
Area of Science:
- Vascular imaging
- Diagnostic radiology
Background:
- Conventional catheter angiography is being challenged by advanced non-invasive imaging techniques.
- Magnetic resonance angiography (MRA) and computerised tomographic angiography (CTA) are emerging as powerful diagnostic tools.
Purpose of the Study:
- To discuss current indications for MRA and CTA in diagnosing various vascular diseases.
- To compare the advantages and disadvantages of MRA and CTA.
Main Methods:
- Review of current literature on MRA and CTA applications.
- Analysis of diagnostic capabilities for aortic, pulmonary, renal, carotid, and peripheral vascular diseases.
Main Results:
- MRA and CTA yield comparable clinical results in diagnosing vascular diseases.
- MRA offers advantages for patients with renal impairment due to non-nephrotoxic contrast agents.
- CTA is more suitable for acute conditions due to shorter examination times compared to MRA.
Conclusions:
- MRA and CTA are effective non-invasive alternatives to catheter angiography.
- Patient-specific factors, such as renal function and urgency of condition, dictate the choice between MRA and CTA.