Premium
Simultaneous Vasomotor Reactivity Testing in the Middle Cerebral and Basilar Artery with Suboccipital Probe Fixation Device
Author(s) -
Hong Ji Man,
Joo In Soo,
Huh Kyoon,
Sheen Seung Soo
Publication year - 2010
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/j.1552-6569.2008.00353.x
Subject(s) - medicine , middle cerebral artery , transcranial doppler , basilar artery , nuclear medicine , cardiology , ischemia
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.