Normal reference intervals and ranges of side-to-side and day-to-day variability of ocular blood flow Doppler parameters.
Publication/Presentation Date
7-1-2005
Abstract
The study presents normal reference intervals and ranges of "normal" side-to-side and day-to-day variability of ocular blood flow Doppler parameters. Peak-systolic (PSV), end-diastolic velocity (EDV) and impedance indices in the ophthalmic artery (OA), the central retinal artery (CRA) and the short posterior ciliary artery (SPCA) of both orbits were determined with color-coded duplex sonography in 140 healthy volunteers (range 18 to 83 y; 68 men and 72 women). Decreases in flow velocities and concomitant increases in impedance indices were found in all arteries with advancing age. The PSV and the EDV values for the OA, the CRA and the SPCA in the age group less than 40 yr-old were 40.6 +/- 8.9 and 11.2 +/- 3.7, 9.9 +/- 1.8 and 3.7 +/- 0.9, 13.8 +/- 2.6 and 5.7 +/- 1.5 cm/s (mean +/- SD), respectively. In the 40 to 60 yr-old age group, the values were 35 +/- 7.9 and 10.7 +/- 4.3, 9.7 +/- 2 and 3.5 +/- 0.8, 13.5 +/- 2.9 and 5.3 +/- 1.5 cm/s. In the age group over 60 yr-old, the values were 34 +/- 8 and 8.4 +/- 3.3, 9.3 +/- 2 and 3 +/- 0.9, 12.8 +/- 2.4 and 4.3 +/- 1.2 cm/s. In the youngest age group, the EDV in the CRA and the SPCA was higher in women, while in the OA the PSV and the EDV were higher in men. Ranges of side-to-side variability in the OA, the CRA and the SPCA, determined with repeatability coefficient for the PSV and the EDV, were 24, 5.4, 7.5 cm/s and 11, 2.5, 4.2 cm/s, respectively, whereas the values for day-to-day variability were 16.8, 4.3, 6.7 cm/s and 5.6, 1.7 and 3.9 cm/s. Ocular blood flow Doppler parameters range widely and are significantly age and sex dependent. Ranges of "normal" side-to-side and day-to-day variability of the parameters can help to determine abnormal flow pattern.
Volume
31
Issue
7
First Page
895
Last Page
903
ISSN
0301-5629
Published In/Presented At
Ustymowicz, A., Mariak, Z., Weigele, J., Lyson, T., Kochanowicz, J., & Krejza, J. (2005). Normal reference intervals and ranges of side-to-side and day-to-day variability of ocular blood flow Doppler parameters. Ultrasound in medicine & biology, 31(7), 895–903. https://doi.org/10.1016/j.ultrasmedbio.2005.03.013
Disciplines
Diagnosis | Medicine and Health Sciences | Other Analytical, Diagnostic and Therapeutic Techniques and Equipment | Radiology
PubMedID
15972195
Department(s)
Department of Radiology and Diagnostic Medical Imaging
Document Type
Article