Color Doppler imaging of the retrobulbar vessels in diabetic retinopathy
Diabetes is a metabolic disease characterized by elevated blood glucose level due to impaired insulin secretion and activity. Chronic hyperglycemia leads to functional disorders of numerous organs and to their damage. Vascular lesions belong to the most common late complications of diabetes. Micr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2014-03-01
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| Series: | Journal of Ultrasonography |
| Subjects: | |
| Online Access: | http://jultrason.pl/index.php/issues/volume-14-no-56/color-doppler-imaging-of-the-retrobulbar-vessels-in-diabetic-retinopathy?aid=222 |
| Summary: | Diabetes is a metabolic disease characterized by elevated blood glucose level due to
impaired insulin secretion and activity. Chronic hyperglycemia leads to functional disorders
of numerous organs and to their damage. Vascular lesions belong to the most
common late complications of diabetes. Microangiopathic lesions can be found in the
eyeball, kidneys and nervous system. Macroangiopathy is associated with coronary and
peripheral vessels. Diabetic retinopathy is the most common microangiopathic complication
characterized by closure of slight retinal blood vessels and their permeability. Despite
intensive research, the pathomechanism that leads to the development and progression of
diabetic retinopathy is not fully understood. The examinations used in assessing diabetic
retinopathy usually involve imaging of the vessels in the eyeball and the retina. Therefore,
the examinations include: fluorescein angiography, optical coherence tomography of the
retina, B-mode ultrasound imaging, perimetry and digital retinal photography. There are
many papers that discuss the correlations between retrobulbar circulation alterations and
progression of diabetic retinopathy based on Doppler sonography. Color Doppler imaging
is a non-invasive method enabling measurements of blood flow velocities in small vessels
of the eyeball. The most frequently assessed vessels include: the ophthalmic artery, which
is the first branch of the internal carotid artery, as well as the central retinal vein and
artery, and the posterior ciliary arteries. The analysis of hemodynamic alterations in the
retrobulbar vessels may deliver important information concerning circulation in diabetes
and help to answer the question whether there is a relation between the progression of
diabetic retinopathy and the changes observed in blood flow in the vessels of the eyeball.
This paper presents the overview of literature regarding studies on blood flow in the vessels
of the eyeball in patients with diabetic retinopathy. |
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| ISSN: | 2084-8404 2451-070X |