PURPOSE To compare the ability of two optical biometers to acquire the axial length (AL) measurement in cataractous eyes. METHODS This prospective, comparative, single-center study comprised 105 eyes (63 patients). AL was acquired by the composite mean value of 20 measurements (composite-20 IM) and five measurements (composite-5 IM) (IOLMaster(®) 500 version 7.1 software), and the standard me...

BACKGROUND AND PURPOSE Carotid artery-related stroke is largely an embolic disease that has been correlated with inflammation, plaque rupture, and thrombus formation in "vulnerable" atherosclerotic plaque. Nevertheless, current guidelines for carotid revascularization in asymptomatic patients rely on the calculation of stenosis for risk assessment, a parameter that has been viewed with increasi...

BACKGROUND AND PURPOSE Cerebral hyperperfusion syndrome is a potential complication of superficial temporal artery-MCA anastomosis for Moyamoya disease. In this study, we evaluated whether TOF-MRA could assess cerebral hyperperfusion syndrome after superficial temporal artery-MCA anastomosis for this disease. MATERIALS AND METHODS This retrospective study included patients with Moyamoya disea...

BACKGROUND This study aimed to assess the efficacy and safety of atropine 0.5% eyedrops (ATE) for the treatment of children with low myopia (LM). METHODS In this study, a total of 126 children with LM were randomly divided into an intervention group (administered 0.5% ATE) and a control group (administered a placebo), with 63 children in each group. The outcome measurements were changes in th...

PURPOSE To generate percentile curves of axial length (AL) for European children, which can be used to estimate the risk of myopia in adulthood. METHODS A total of 12 386 participants from the population-based studies Generation R (Dutch children measured at both 6 and 9 years of age; N = 6934), the Avon Longitudinal Study of Parents and Children (ALSPAC) (British children 15 years of age; N ...

Background: With faster image acquisition times and thinner slice widths, multislice detector computed tomography (MSCT) allows visualisation of human coronary arteries with diagnostic image quality. In addition to conventional axial slices, virtual coronary angioscopies (VCA) can be reconstructed using MSCT datasets. Objective: To evaluate the feasibility of reconstructing VCA and to determine...

OBJECTIVES The purpose of this study was to characterize the hemodynamic force acting on plaque and to investigate its relationship with lesion geometry. BACKGROUND Coronary plaque rupture occurs when plaque stress exceeds plaque strength. METHODS Computational fluid dynamics was applied to 114 lesions (81 patients) from coronary computed tomography angiography. The axial plaque stress (APS...

background: the presence of significant carotid stenosis in coronary artery bypass grafting (cabg) patients increases the risk of either transient ischemic attack or stroke. however, there is a dearth of data on the risk for patients with unilateral total occlusion of the carotid artery. we herein report our results of cardiac surgery in patients with unilateral total occlusion of the carotid a...

BACKGROUND With faster image acquisition times and thinner slice widths, multislice detector computed tomography (MSCT) allows visualisation of human coronary arteries with diagnostic image quality. In addition to conventional axial slices, virtual coronary angioscopies (VCA) can be reconstructed using MSCT datasets. OBJECTIVE To evaluate the feasibility of reconstructing VCA and to determine...

A non-Newtonian mathematical model of blood described as a Hershel-Bulkley fluid flowing in stenosed artery with the effect chemical reaction is mathematically studied. The expressions shear stress, mean velocity and absolute plug non-plug flow field are evaluated analytically. convective-diffusion equation solved using Taylor-Aris technique subject to relevant boundary constraint determining c...