Color Doppler Imaging of Ophthalmic Artery Blood Flow Velocity

Quaranta, Luciano; Harris, Alon; Donato, Francesco; Cassamali, M.; Semeraro, Francesco; Nascimbeni, Giuseppe; Gandolfo, E.; Quaranta, C. A.

doi:10.1016/s0161-6420(97)30256-5

Cited by 88 publications

(64 citation statements)

References 22 publications

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“…It also allows non-invasive examination of blood flow velocities of the ophthalmic artery (OA) and its branches in the orbit, even in states of decreased blood flow such as in OIS. A recent report (Quaranta et al 1997) suggested that CDI is a reliable tool for quantitative assessment of OA blood flow velocity, however, alterations in OA blood flow in diabetes mellitus have not been fully elucidated. In this report, we analyzed by Color Doppler the blood flow characteristics of the OA as a presentation of macroangiopathy in diabetic patients.…”

mentioning

confidence: 99%

Ophthalmic artery blood flow velocity changes in diabetic patients as a manifestation of macroangiopathy

Inoue

Azumi

Yamamoto

2000

Acta Ophthalmologica Scandinavica

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ABSTRACT.Purpose: The hemodynamic characteristics of ophthalmic artery (OA) blood flow velocity in diabetic patients with ocular involvement were evaluated. Methods: Changes in OA blood flow of eyes with background diabetic retinopathy (BDR), proliferative retinopathy (PDR) and ocular ischemic syndrome (OIS) were ananalyzed by Color Doppler imaging. Results: Patients with BDR and PDR had significantly lower diastolic and mean blood flow velocities and higher pulsatility indices compared to controls. Diabetic patients with OIS had significantly lower systolic, diastolic and mean anterograde OA blood flow velocities than the controls. Pulsatility indices were higher in anterograde OA blood flow measurements compared to controls. Systolic blood flow velocities in rubeotic eyes with OIS were significantly lower than in rubeotic eyes with PDR. Conclusion: OA blood flow measurements by color doppler imaging may detect macroangiopathies in diabetic patients as manifested by carotid atheromas and arterio-and arterosclerosis of the OA and its branches.

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mentioning

confidence: 99%

Ophthalmic artery blood flow velocity changes in diabetic patients as a manifestation of macroangiopathy

Inoue

Azumi

Yamamoto

2000

Acta Ophthalmologica Scandinavica

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“…Quaranta et al 24 showed low variability of ophthalmic artery measurements (blood flow velocities) performed in 35 eyes by different observers. They concluded that Doppler velocimetry may be a useful tool for studying the blood flow velocity in the ophthalmic artery.…”

Section: Resultsmentioning

confidence: 98%

“…Most studies have evaluated the intraobserver reproducibility. [21][22][23][24][25][26] This study aimed to investigate the interobserver reliability in measuring ophthalmic artery Doppler indices. …”

Section: Doppler Velocimetry Of the Ophthalmic Arterymentioning

confidence: 99%

Doppler Velocimetry of the Ophthalmic Artery

Oliveira

Sá

Velarde

et al. 2012

Journal of Ultrasound in Medicine

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Doppler Velocimetry of the Ophthalmic Arteryrbital circulation has been assessed by color Doppler imaging for the last 20 years, and patterns of normality have been described for the orbital vessels. The importance of this examination was first shown in ophthalmologic diseases. 1-3 Hata et al 4 were the first to use Doppler velocimetry of the ophthalmic artery in the assessment of pregnant women. Then several authors evaluated this method during pregnancy, especially in patients with hypertension. 5-17 Ocular Doppler sonography has been shown to be an accurate, objective, and promising method in the evaluation of the severity of preeclampsia, which is the major cause of maternal mortality. [18][19][20] Although several authors have published data for ocular Doppler velocimetry, the reliability of the measurement of ophthalmic Doppler indices (resistive index, pulsatility index, and peak ratio) has not been extensively established. Most studies have evaluated the intraobserver reproducibility. [21][22][23][24][25][26] This study aimed to investigate the interobserver reliability in measuring ophthalmic artery Doppler indices. ORIGINAL RESEARCHObjectives-The aim of this study was to investigate the interobserver reliability for measuring ophthalmic artery Doppler indices.Methods-Healthy women (n = 30) were evaluated. The resistive index, pulsatility index, and peak ratio were determined by two independent observers who were blind to each other. A paired t test was used for the comparison of paired samples in the cases of replication between observers. Pearson product-moment correlation was used to study the relationship between the samples. The Bland-Altman graphic approach was used to investigate the agreement between observers.Results-No significant differences were found between the values obtained by the two independent observers for the resistive index and pulsatility index. The difference observed between the values obtained by the observers for the peak ratio was 0.02.Conclusions-Doppler velocimetry is a reproducible technique for evaluation of the resistive index and pulsatility index. For analysis of the peak ratio, an interval of ±0.02 should be considered for the measurement.

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“…Even in unilateral carotid stenosis, there have been reports of bilateral decrease in OBF. Such changes would rely on a patent circle of Willis that would balance blood flow between the two carotid arteries, resulting in a reduced OBF in both eyes (Quaranta, 1997).…”

Section: A Sick Eye In a Sick Bodymentioning

confidence: 99%