Naslov
Mean Blood Flow Velocities in Posterior Cerebrall Arteries

Autori
Trkanjec, Zlatko ; Demarin, Vida ; Vargek-Solter, Vesna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract book of the 1st Conference of the Central and East European Stroke Society / - , 1999, 28-28

Skup
Conference of the Central and East European Stroke Society (1 ; 1999)

Mjesto i datum
Budimpešta, Mađarska, 18.03.1999. - 20.03.1999

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Sažetak
Mean blood flow velocities (MBFV) in posterior cerebral arteries (PCA) were analyzed in 5 healthy volunteers with their eyes wide open and closed. Measurements were carried out on a TCD Transscan EME device using a 2-MHz probe to insonate the right and left PCA. The study group of healthy volunteers included 27 men ad 24 women aged 20-59 years ; mean age was 36.98 years. With the subjects' eyes open MBFV was 41.2ą8.6 cm/s (meaną2SD) and 41.7ą8.9 cm/s in the left and right PCA, respectively With the subjects' eyes closed, MBFV was 27.8ą8.5 cm/s in the left PCA and 28.2ą9.1 cm/s in the right PCA. Results were compared by Wilcoxon test. There was no statistically significant difference between the left and right PCA with the subjects' eyes open or closed. However, a statistical significant difference at a level of p<0.001 was found between the values measured with the subjects' eyes open and closed for both PCA. On closing the eyes, MBFV is 67.5 % of the values with eyes wide open. PCAs almost completely provide arterial blood supply for the visual cortex in the occipital lobes. Since regional metabolism has major influence on cerebral blood flow results of this study could indirectly indicate that on closing the eyes the metabolism in visual cortex fell on approximately two thirds of the value with eyes open.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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