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Figure 3 | BMC Neurology

Figure 3

From: The population-based Barcelona-Asymptomatic Intracranial Atherosclerosis Study (ASIA): rationale and design

Figure 3

Example of right middle cerebral artery (MCA) stenosis. In left image (A) TCCD color mode shows an area of narrowing and color aliasing in the proximal segment of right MCA (arrow). In the right image (B), an spectral flow analyses is set to determine systolic peak velocity and appearance of low-frequency, high-intensity Doppler signals. In the middle superimposed image (C), a magnetic resonance angiogram (MRA) made in the same subject shows a flow gap in right MCA (circle) corresponding to a high-grade stenosis.

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BMC Neurology

ISSN: 1471-2377

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