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Simultaneous vasomotor reactivity testing in the middle cerebral and basilar artery with suboccipital probe fixation device.

Authors
Hong, JM; Joo, IS; Huh, K; Sheen, SS
Citation
Journal of neuroimaging : official journal of the American Society of Neuroimaging, 20(1):83-86, 2010
Journal Title
Journal of neuroimaging : official journal of the American Society of Neuroimaging
ISSN
1051-22841552-6569
Abstract
BACKGROUND: We assess the feasibility of using the newly designed suboccipital probe fixation device (SPFD) as a convenient and reliable tool for simultaneous measurement of vasomotor reactivity (VMR) in the middle cerebral artery (MCA) and basilar artery (BA). METHODS: We analyzed 30 healthy volunteers' VMR values by using both SPFD and conventional handheld method. The VMR values were measured as percentage increase of the mean flow velocity on transcranial Doppler (TCD) in response to hypercapnia induced by the rebreathing method. The VMR tests were performed three times: (1) for both MCAs, (2) for the index MCA (the better signal window) and the BA by using the SPFD, and (3) for the index MCA and the BA by using the handheld technique. RESULTS: The VMR values of the right and left MCAs were similar (P > .05). Although the VMR values of the index MCA and the BA obtained by SPFD application and the handheld technique were similar (P > .05), the correlation coefficient of VMR values obtained by using the SPFD was higher (r= .827, P < .001 vs. r= .568, P= .001). CONCLUSION: The SPFD is a convenient and reliable tool for the evaluation of relative VMR between the MCA and BA during TCD monitoring.
MeSH terms
AdultBasilar Artery/*physiology/ultrasonographyBlood Flow VelocityBlood Pressure*Cerebrovascular CirculationEquipment DesignFeasibility StudiesFemaleHeart RateHumansHypercapnia/physiopathologyMaleMiddle Cerebral Artery/*physiology/ultrasonography*Monitoring, Physiologic/instrumentation/methodsRespirationSoftwareUltrasonography, Doppler, TranscranialUser-Computer InterfaceVasomotor System/*physiology
DOI
10.1111/j.1552-6569.2008.00353.x
PMID
19226344
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Neurology
Journal Papers > School of Medicine / Graduate School of Medicine > Pulmonary & Critical Care Medicine
AJOU Authors
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