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2013, Number 2

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Anales de Radiología México 2013; 12 (2)

Ocular and orbital ultrasound with color Doppler. Normal anatomy and technical aspects

Peñata-Ruiz N

Language: Spanish
References: 10
Page: 70-73
PDF size: 506.86 Kb.


ABSTRACT

Introduction. Color Doppler ocular ultrasound allows us to identify, measure, and differentiate the ocular arteries in normal or pathologic conditions.
Objectives. Determine the characteristics of ocular and orbital circulation in patients without nonsystemic ocular alterations and determine the peak systolic strain rate (PSRs), final diastolic velocity (FDV), resistance index (RI), pulsatility index (PI), and systole/diastole (SD) ratio in ocular arteries.
Material and method. A descriptive, non-experimental, transverse and correlational study. Ocular and orbital ultrasound images from 100 asymptomatic patients without systemic alterations in the period 2005 through 2009 were analyzed.
Results. The ophthalmic artery (OA) shows a pattern of relative high resistance, whereas the central retinal artery (CRA) and the posterior choroidal artery (PCA) behave like low-resistance arteries.
Conclusion. Color Doppler ultrasound is a non-invasive method which has evolved and has allowed effective diagnostic exploration in patients with or without oculo-orbital pathology.


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