Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Article type: Research Article
Authors: Koutsiaris, Aristotle G.*
Affiliations: Bio-Medical Informatics Laboratory, Department of Medical Laboratories, School of Health Sciences, Technological Educational Institute (TEI) of Thessaly, Larissa, Greece
Correspondence: [*] Corresponding author: Dr. Aristotle Koutsiaris, 9 Miauli St, 41223 Larissa, Greece. Tel.: +30 2410 411284; E-mails: ariskout@otenet.gr; ariskout@teilar.gr.
Abstract: The axial blood velocity (Vax) association with microvessel diameter (D) was studied at 104 different postcapillary venules (4 μm < D < 24 μm) and 30 different precapillary arterioles (6 μm≤D≤12 μm) in the human conjunctiva of normal healthy humans. Venular diameter sizes were classified as “very small” (Group 1, 4.4 μm≤D < 8.9 μm), “small” (Group 2, 8.9 μm≤D < 13.8 μm), “medium” (Group 3, 13.8 μm≤D < 19.1 μm) and “large” (Group 4, 19.1 μm≤D≤23.5). The Spearman’s correlation coefficient (rs) in all 4 venular groups was less than 0.36 and not statistically significant (n = 26, p≥0.08). Similar correlation results were observed for the arteriolar group (rs) ≈ 0) for the peak systolic, the average and the end systolic axial velocities. Vax was significantly (p < 0.001) lower in Group 1 in comparison to that in Group 2 and significantly (p < 0.01) lower in Group 2 in comparison to that in Group 3. However, Vax was not significantly lower in Group 3 in comparison to that in Group 4. Average Vax and standard deviation was 0.48 ± 0.13, 0.64 ± 0.16, 0.82 ± 0.25 and 0.88 ± 0.32 mm/s for Groups 1, 2, 3 and 4 respectively. The above results reinforce the importance of measuring D in microvascular hemodynamics. Higher diameters suggest higher axial velocities but Vax does not change significantly within the limits of each of the aforementioned groups.
Keywords: Human, eye, conjunctiva, venules, arterioles, axial velocity, diameter, correlation
DOI: 10.3233/CH-141888
Journal: Clinical Hemorheology and Microcirculation, vol. 61, no. 3, pp. 429-438, 2015
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
sales@iospress.com
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
info@iospress.nl
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office info@iospress.nl
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
china@iospress.cn
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
如果您在出版方面需要帮助或有任何建, 件至: editorial@iospress.nl