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PubMed · 9664857

Mirror-image artifact can affect transcranial Doppler interpretation.

D Ratanakorn·F W Kremkau·L G Myers·D B Meads·C H Tegeler
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Abstract

Transcranial Doppler ultrasonography (TCD) allows evaluation of blood-flow velocity in intracranial arteries detection and monitoring of vasospasm in patients with subarachnoid hemorrhage. Spectral Doppler artifacts can affect TCD data. A 1-month series of TCD findings showed marked fluctuation in blood-flow velocity values in both the middle and anterior cerebral arteries of a patient with subarachnoid hemorrhage. A mirror-image artifact of the Doppler fast Fourier transform velocity spectrum resulted in erroneous interpretation of higher flow velocity in certain vessels. This artifact may cause misinterpretation of TCD flow-velocity data and lead to improper diagnosis of the condition and treatment of patients.

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Aneurysm, RupturedArtifactsBlood Flow VelocityFemaleHumansIntracranial AneurysmIschemic Attack, TransientMiddle AgedSensitivity and SpecificitySubarachnoid HemorrhageUltrasonography, Doppler, TranscranialCase ReportsJournal Article

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D Ratanakorn, F W Kremkau, L G Myers, D B Meads, C H Tegeler. 1998. Mirror-image artifact can affect transcranial Doppler interpretation.. https://doi.org/10.1111/jon199883175

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