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| Doppler Ultrasonographic Parameters for Predicting Cerebral Vascular Reserve in Patients with Acute Ischemic Stroke |
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| Han Young Jung, M.D. Hui Joong Lee, M.D., Hye Jung Kim, M.D., Hui Joong Lee, M.D., Hye Jung Kim, M.D., Yong Sun Kim, M.D., Duk Sik Kang, M.D. |
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| Department of Radiology, Kyungpook National University Hospital |
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| PURPOSE : We investigated Doppler ultrasonographic (US) parameters of patients with acute stroke to predict the
cerebral vascular reserve (CVR) measured by SPECT.
MATERIALS and METHODS : We reviewed the flow velocity and cross-sectional area of the circular vessel at the common,
external, and internal carotid arteries (ICA) and the vertebral arteries (VA) in 109 acute stroke patients who
underwent SPECT. Flow volume (FV) of each artery was calculated as the product of the angle-corrected timeaveraged
flow velocity and cross-sectional area of the circular vessel. Total cerebral FV (TCBFV) was determined
as the sum of the FVs of the right and left ICA and VA. We compared the Doppler US parameters between
44 cases of preserved and 65 cases of impaired CVR.
RESULTS : In the preserved CVR group, ICA FV, anterior circulating FV (ACFV) and TCBFV were higher than in
the impaired CVR group (p < 0.05, independent t-test). In the impaired CVR group, the ROC curves showed
ACFV and TCBFV were suitable parameters to predict CVR (p < 0.05).
CONCLUSION : Doppler US was helpful for understanding the hemodynamic state of acute stroke. FV measurement
by Doppler US was useful for predicting CVR. |
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| Keyword : Brain, infarction / Cerebral blood vessels / Brain, radionuclide studies / Ultrasound (US), Doppler studies |
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pdf파일 : 35-40정한영.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2006 ; 25 (1) : p.35-40
