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Advanced imaging in acute ischemic stroke
Craig Kilburg1, J Scott McNally2, Adam de Havenon3
1Departments of 1 Neurosurgery.
Neurosurgical Focus
|April 4, 2017
Summary
New imaging techniques enhance acute ischemic stroke diagnosis and management. Advanced methods like vessel wall MRI and 4D CTA complement traditional imaging for better patient outcomes.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Acute ischemic stroke evaluation traditionally uses CT and MRI.
- Conventional techniques include CT angiography (CTA) and MR angiography (MRA).
Purpose of the Study:
- To explore newer imaging modalities for acute ischemic stroke.
- To assess how advanced techniques complement conventional methods.
Main Methods:
- Vessel wall MRI for high-resolution vascular analysis.
- Transcranial Doppler ultrasonography for acute assessment and monitoring.
- 4D CTA and MRA as less invasive alternatives for clot burden and collateral flow assessment.
Main Results:
- Vessel wall MRI identifies occult lesions and predicts stroke progression.
- Transcranial Doppler aids in detecting large vessel occlusions and monitoring treatment.
- 4D CTA/MRA effectively evaluate clot burden and collateral circulation.
Conclusions:
- Emerging imaging modalities significantly improve acute ischemic stroke diagnosis and management.
- These advanced techniques offer detailed insights beyond conventional imaging.
- Continued technological advancements will further expand their role in stroke care.
Keywords:
CTA = CT angiographyDSA = digital subtraction angiographyICA = internal carotid arteryIPH = intraplaque hemorrhageLRNC = lipid-rich necrotic coreMCA = middle cerebral arteryMES = microembolic signalMPRAGE = magnetization-prepared rapid acquisition gradient echoMRA = MR angiographyPFO = patent foramen ovalePICA = posterior inferior cerebellar arteryTCD = transcranial DopplerTOF = time of flightTTE = transthoracic echocardiographyVW = vessel wallfour-dimensional CT angiographyfour-dimensional MR angiographyimagingischemic stroketranscranial Doppler ultrasoundvessel wall MRI