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| http://dx.doi.org/10.4103/ijo.IJO_446_22 | DOI Listing |
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Intra- and inter-session reliability and repeatability of H magnetic resonance spectroscopy for determining total creatine concentrations in multiple brain regions.
Exp Physiol
December 2024
Department of Sport and Exercise Sciences, Manchester Metropolitan University Institute of Sport, Manchester, UK.
Using proton magnetic resonance spectroscopy (H MRS) to determine total creatine (tCr) concentrations will become increasingly prevalent, as the role of creatine (Cr) in supporting brain health gains interest. Methodological limitations and margins of error in repeated H MRS, which often surpass reported effects of supplementation, permeate existing literature. We examined the intra- and inter-session reliability and repeatability of H MRS for determining tCr concentrations across multiple brain regions (midbrain, visual cortex and frontal cortex).
View Article and Find Full Text PDFAssessing the Repeatability of Inner Choroid Flow Deficit Percentage in Intermediate AMD and Controls: A Comparative Study between Different Post-processing Approaches.
Retina
December 2024
Harvard Retinal Imaging Lab, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA.
Purpose: To assess repeatability of macular inner choroid flow deficit percentage (ICFD%) in intermediate age-related macular degeneration (iAMD) and controls employing various post-processing approaches.
Methods: Cross-sectional, observational study. We included (1) 22 iAMD and 24 control eyes, with (2) age >50 years, (3) visual acuity >20/32, and (4) no additional ocular and systemic confounders.
Background predation risk induces anxiety-like behaviour and predator neophobia in zebrafish.
Anim Cogn
October 2024
Department of Veterinary Biomedical Sciences, WCVM, University of Saskatchewan, Saskatoon, Canada.
Prey face a major challenge in balancing predator avoidance with other essential activities. In environments with high risk, prey may exhibit neophobia (fear of novelty) due to the increased likelihood of novel stimuli being dangerous. The zebrafish, Danio rerio, is an established model organism for many scientific studies.
View Article and Find Full Text PDFPurpose: To evaluate and compare the repeatability of corneal densitometry (CD) measurements obtained using both an anterior-segment optical coherence tomography (AS-OCT) device and a Scheimpflug camera system, while also assessing the level of agreement. The study also sought to investigate the correlation of CD with age, gender, and central corneal thickness (CCT) in normal eyes.
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Rapid campimetry - a novel robust kinetic approach for visual field screening in glaucoma.
Front Med (Lausanne)
August 2024
Department of Ophthalmology, Faculty of Medicine, Otto-von-Guericke University, Magdeburg, Germany.
Purpose: To investigate the robustness and variability of a novel kinetic visual field (VF) screening method termed rapid campimetry (RC).
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