scholarly journals Age- and Hypertension-Dependent Changes in Retinal Vessel Diameter and Wall Thickness: An Optical Coherence Tomography Study

2013 ◽  
Vol 156 (4) ◽  
pp. 706-714.e2 ◽  
Author(s):  
Yuki Muraoka ◽  
Akitaka Tsujikawa ◽  
Kyoko Kumagai ◽  
Masahiro Akiba ◽  
Ken Ogino ◽  
...  
2017 ◽  
Vol 61 (5) ◽  
pp. 378-387
Author(s):  
Takeshi Yabana ◽  
Yukihiro Shiga ◽  
Ryo Kawasaki ◽  
Kazuko Omodaka ◽  
Hidetoshi Takahashi ◽  
...  

2014 ◽  
Vol 253 (4) ◽  
pp. 499-509 ◽  
Author(s):  
Yanling Ouyang ◽  
Qing Shao ◽  
Dirk Scharf ◽  
Antonia M. Joussen ◽  
Florian M. Heussen

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Cetin Akpolat ◽  
Muhammed M. Kurt ◽  
Merve Yılmaz ◽  
Fikriye Ordulu ◽  
Ferhat Evliyaoglu

Purpose. We aimed to evaluate foveal and parafoveal density using optical coherence tomography angiography and the alteration on the retinal vessel diameter in patients with inactive Graves’ ophthalmopathy compared to age-matched normal population. Materials and Methods. Patients with inactive Graves’ ophthalmopathy (study group) and healthy individuals (control group) were enrolled in the cross sectionally designed study. The optical coherence tomography angiography parameters and retinal vessel diameter measurements were assessed between the study and control groups. Foveal and parafoveal microvascular density in the retina was measured using optical coherence tomography angiography. Retinal artery and vein diameter and artery/vein ratio were assessed for retinal vessel caliber changes. Results. Patients with inactive Graves’ ophthalmopathy had higher values of intraocular pressure, proptosis, and axial length (P=0.001, P=0.002, and P=0.008, respectively). Temporal parafoveal vessel density was 48.93 ± 3.21 and 47.62 ± 2.59 in the study and control groups, respectively (P=0.017). Nasal parafoveal vessel density was 47.55 ± 3.01 and 46.46 ± 2.57 in the study and control groups, respectively (P=0.035). Foveal, superior, and inferior parafoveal vessel density values were similar in the study and control groups (P=0.268, P=0.107, and P=0.055, respectively). Patients in the study group had narrower retinal artery and vein diameters (P≤0.001 and P=0.033). Artery/vein ratio was significantly higher in the control group (P≤0.001). Conclusion. Optical coherence tomography angiography could be a novel and promising noninvasive diagnostic technique in patients with inactive Graves’ ophthalmopathy to detect foveal and parafoveal vessel density changes compared to healthy subjects. The decrease of retinal vessel diameter might be observed in patients with inactive graves ophthalmopathy.


2018 ◽  
Vol 39 (4) ◽  
pp. 813-819 ◽  
Author(s):  
Duygu Gulmez Sevim ◽  
Metin Unlu ◽  
Serap Sonmez ◽  
Murat Gultekin ◽  
Cagatay Karaca ◽  
...  

2020 ◽  
Vol 104 (10) ◽  
pp. 1435-1442
Author(s):  
Mohamed I Geneid ◽  
Janne J Uusitalo ◽  
Ilmari L Leiviskä ◽  
Ville O Saarela ◽  
M Johanna Liinamaa

AimsStudying the relationship between retinal vessel diameter (RVD) with (1) macular thickness and volume, (2) retinal nerve fibre layer (RNFL), (3) ganglion cell-inner plexiform layer (GC-IPL) and (4) optic nerve head (ONH) in a population cohort of middle-aged Caucasians.MethodsWe collected data from 3070 individuals. We used a semiautomated computer-assisted programme to measure central retinal arteriolar equivalent and central retinal venular equivalent. Macular and ONH parameters were assessed by optical coherence tomography.ResultsData from 2155 persons were analysed. A larger RVD was associated with a thicker macula and increased macular volume; each SD increase in average macular thickness and volume was associated with a 3.28 µm and a 3.19 µm increase in arteriolar diameter and a 5.10 µm and a 5.08 µm increase in venular diameter, respectively (p<0.001 for all). A larger rim area, greater GC-IPL and RNFL thicknesses were associated with larger RVD; each SD increase in rim area, GC-IPL thickness and RNFL thickness was associated with a 1.21 µm, 2.68 µm and a 3.29 µm increase in arteriolar diameter and a 2.13 µm, 4.02 µm and 5.04 µm increase in venular diameter, respectively (p<0.001 for all).ConclusionsIncreased macular thickness, macular volume, GC-IPL thickness, RNFL thickness and optic nerve rim area were associated with larger RVDs in all subjects. This study clarified the anatomical correlations between both macular and ONH parameters with RVD for middle-aged Caucasians; these can represent a basis for further studies investigating the vascular aetiology of eye diseases.


2016 ◽  
Vol 11 (1) ◽  
pp. 11
Author(s):  
Sudheer Koganti ◽  
◽  
◽  
◽  
Tushar Kotecha ◽  
...  

Intracoronary imaging has the capability of accurately measuring vessel and stenosis dimensions, assessing vessel integrity, characterising lesion morphology and guiding optimal percutaneous coronary intervention (PCI). Coronary angiography used to detect and assess coronary stenosis severity has limitations. The 2D nature of fluoroscopic imaging provides lumen profile only and the assessment of coronary stenosis by visual estimation is subjective and prone to error. Performing PCI based on coronary angiography alone is inadequate for determining key metrics of the vessel such as dimension, extent of disease, and plaque distribution and composition. The advent of intracoronary imaging has offset the limitations of angiography and has shifted the paradigm to allow a detailed, objective appreciation of disease extent and morphology, vessel diameter, stent size and deployment and healing after PCI. It has become an essential tool in complex PCI, including rotational atherectomy, in follow-up of novel drug-eluting stent platforms and understanding the pathophysiology of stent failure after PCI (e.g. following stent thrombosis or in-stent restenosis). In this review we look at the two currently available and commonly used intracoronary imaging tools – intravascular ultrasound and optical coherence tomography – and the merits of each.


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