The Effect of Contrast Material on Transcranial Doppler Evaluation of Normal Middle Cerebral Artery Peak Systolic Velocity

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.

aFrom the Division of Diagnostic and Interventional Radiology (H.G.K, P.G., J.-B.M, C.K., D.A.R., K.J.M.), Geneva University Hospital, Geneva, Switzerland; the Department of Radiology (R.O.B.), Ann Arbor, MI; and the Department of Radiology and Radiological Sciences (P.G., K.T.S., K.J.M.), Johns Hopkins Hospital, Baltimore, MD.