Premium
Mirror‐Image Artifact Can Affect Transcranial Doppler Interpretation
Author(s) -
Ratanakorn Disya,
Kremkau Frederick W.,
Myers Lawrence G.,
Meads Dana B.,
Tegeler Charles H.
Publication year - 1998
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/jon199883175
Subject(s) - medicine , artifact (error) , transcranial doppler , subarachnoid hemorrhage , vasospasm , blood flow , doppler effect , flow velocity , radiology , cardiology , artificial intelligence , physics , astronomy , computer science , relaxation (psychology)
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.