Assessment of Blood Flow Velocity and Diameter of the Middle Cerebral Artery during the Acetazolamide Provocation Test by Use of Transcranial Doppler Sonography and MR Imaging
Stephan J. Schreiber
,a,
Stefan Gottschalka,
Markus Weiha,
Arno Villringera and
José M. Valduezaa
a From the Departments of Neurology (S.J.S., M.W., A.V., J.M.V.) and Neuroradiology (S.G.), University Hospital Charité, Berlin, Germany.

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FIG 1. Axial-plane MR image (patient 5), chosen to localize the M1 segment and the optimal MCA cross-section plane.FIG 2. Coronal-plane MR image (patient 5), chosen to localize the M1 segment and the optimal MCA cross-section plane.FIG 3. Cross section of the MCA in high resolution and measurement of greatest diameter in patient 5.FIG 4. Measurement of greatest and smallest diameters in patient 5
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