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Pediatric magnetic resonance angiography: assessment of stroke
R A Zimmerman1, A R Bogdan, D A Gusnard
1Department of Radiology, Children's Hospital of Philadelphia, PA 19104.
Insights
Magnetic resonance angiography (MRA) is effective for diagnosing pediatric strokes. This noninvasive tool helps identify vascular issues like occlusion or malformations, often replacing the need for conventional angiography.
Area of Science:
- Pediatric Neurology
- Diagnostic Imaging
- Vascular Radiology
Background:
- Stroke evaluation is a common reason for pediatric neuroimaging.
- Noninvasive imaging modalities are crucial for diagnosing vascular conditions in children.
Purpose of the Study:
- To assess the utility of magnetic resonance angiography (MRA) in evaluating pediatric stroke.
- To determine the diagnostic yield of MRA for vascular abnormalities in children.
Main Methods:
- Retrospective review of 52 pediatric magnetic resonance angiography (MRA) studies.
- Analysis of MRA findings for vascular occlusion and congenital vascular malformations.
Main Results:
- MRA was performed for stroke evaluation in 31 (59.6%) of 52 pediatric patients.
- Positive findings for vascular occlusion or malformation were present in 13 (41.9%) of these 31 patients.
Conclusions:
- MRA is a valuable noninvasive tool for the initial evaluation of pediatric stroke.
- MRA can often obviate the need for conventional angiography in cases of occlusive vascular disease.
- MRA facilitates timely diagnosis and guides further management, including selective conventional angiography for malformations.
Abstract:
Thirty-one (59.6%) of 52 magnetic resonance angiographic (MRA) studies performed on pediatric patients were for evaluation of strokes. Thirteen of the 31 patients (41.9%) of MRA studies were positive for either vascular occlusion or congenital vascular malformation (arteriovenous, venous, or aneurysm). Results indicate that MRA is a valuable noninvasive diagnostic tool that can be routinely performed as part of the initial magnetic resonance evaluation, often thereby avoiding the need for conventional angiography in occlusive vascular disease, and permitting the performance of conventional angiography, in the case of vascular malformations, later when the patient is stable.