Transcranial color-coded sonography in normal Chinese adults and its clinical applications.

S. K. Lin*, S. J. Ryu, S. T. Lee, H. S. Wang

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations


We have performed transcranial color-coded sonography to 150 normal adults. Through the temporal, orbital and foraminal windows, by using a 2 MHz pulsed-wave transducer, we were able to directly insonate the brain parenchyma, and to obtain color-coded Doppler vascular imagings and flow velocities of the intracranial basal cerebral arteries. There was no significant difference of blood flow velocities and resistance index between the right and left hemispheres. The mean velocities was highest in the middle cerebral artery and lowest in the ophthalmic artery while which had the highest resistance index. Female had higher mean velocity in basilar artery. The mean velocity, peak systolic velocity, as well as end diastolic velocity decreased significantly with age in middle cerebral artery, anterior cerebral artery and basilar artery. Four illustrative cases with abnormal findings were presented to compare with normal control. Some pitfalls in ultrasonography were also described.

Original languageEnglish
Pages (from-to)201-208
Number of pages8
JournalChang Gung Medical Journal
Issue number3
StatePublished - 1995
Externally publishedYes


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