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[Artifacts in magnetic resonance angiography]
L Brunereau1, V Bousson, L Arrivé
1Service de Radiologie, Hôpital Saint-Antoine, Paris.
Abstract:
Magnetic resonance angiography (MRA) has become a major tool in the management of vascular diseases. However, many artifacts that may lead to misinterpretations are encountered with this imaging modality. The purpose of this paper was to enumerate, explain and illustrate each kind of artifact encountered with "time of flight" or "phase contrast" imaging methods. For each artifact, we tried to provide one or several techniques to minimize its consequences.
Insights
Magnetic resonance angiography (MRA) is vital for vascular disease management but prone to artifacts. This paper details common MRA artifacts from time-of-flight and phase-contrast methods, offering solutions to minimize misinterpretations.
Area of Science:
- Medical Imaging
- Radiology
- Vascular Imaging
Context:
- Magnetic resonance angiography (MRA) is a cornerstone in diagnosing and managing vascular diseases.
- Artifacts in MRA can significantly hinder accurate interpretation and patient care.
- Understanding artifact origins is crucial for effective diagnostic imaging.
Purpose:
- To systematically identify and explain artifacts in MRA.
- To illustrate common artifacts encountered with time-of-flight (TOF) and phase-contrast (PC) MRA techniques.
- To provide practical strategies for mitigating artifactual interference in MRA.
Summary:
- This review details various artifacts encountered in magnetic resonance angiography (MRA), specifically within time-of-flight (TOF) and phase-contrast (PC) imaging sequences.
- Each artifact is explained, illustrated, and accompanied by methods to reduce its impact on image interpretation.
- The focus is on improving the diagnostic quality of MRA studies.
Impact:
- Enhances the reliability of MRA for vascular disease assessment.
- Aids radiologists and technologists in recognizing and correcting MRA artifacts.
- Contributes to improved diagnostic accuracy and patient management in vascular imaging.