Results 231 to 240 of about 1,307,206 (279)
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Association between axial length and horizontal and vertical globe diameters

Graefe's Archive for Clinical and Experimental Ophthalmology, 2016
To assess relationships between axial length and the horizontal and vertical globe diameters.The study consisted of enucleated human eyes. The horizontal, vertical, and sagittal diameters were measured.The study included 135 globes removed because of malignant uveal melanoma (111 globes) or end-stage painful glaucoma (n = 24 eyes).
Kyoko Ohno-Matsui   +2 more
exaly   +3 more sources

Axial pulmonary trunk diameter variations during the cardiac cycle

Surgical and Radiologic Anatomy, 2020
Previous studies have shown a correlation between axial pulmonary trunk diameter (PTD) on chest computed tomography (CT) and pulmonary artery pressure. However, it is not known whether the PTD slices measured on chest CT have been recorded during the systolic or diastolic phase.
Yasin Sarıkaya   +4 more
openaire   +3 more sources

Impact of Pupil Diameter on Axial Growth in Orthokeratology

Optometry and Vision Science, 2012
ABSTRACT Purpose. To compare axial elongation between myopic orthokeratology (OK) contact lens and spectacle wearers, and to investigate the impact of pupil diameter on axial growth in myopic children after OK treatment. Methods.
Zhi, Chen   +6 more
openaire   +2 more sources

Axial Diameter is Superior to Volumetric Measurement in Predicting Ureteral Stone Passage

Urology Practice, 2021
We sought to investigate the clinical utility of volumetric measurements in predicting passage of symptomatic ureteral calculi.We performed a retrospective review of patients seen in the emergency department for computerized tomography-confirmed symptomatic ureteral calculi with a subsequent discharge for trial of passage.
Parth M. Patel   +8 more
openaire   +2 more sources

Pancreatic cyst characterization: maximum axial diameter does not measure up

HPB, 2021
Unidimensional size is commonly used to risk stratify pancreatic cysts (PCs) despite inconsistent performance. The current study aimed to determine if unidimensional size, demonstrated by maximum axial diameter (MAD), is an appropriate surrogate measurement for volume and surface area.Patients with cross-sectional imaging of PCs from 2012 to 2013 were ...
Adam M, Awe   +4 more
openaire   +2 more sources

Corneal Diameter, Axial Length, and Intraocular Pressure in Premature Infants

Ophthalmology, 1992
Seventy premature infants 25 to 37 weeks' postconceptional age were examined during their first week of life to determine the correlation of corneal diameter, axial length, and intraocular pressure with gestational age and birth weight.Corneal diameter measurement was determined with corneal templates, total axial length with standardized A-scan ...
S M, Tucker   +4 more
openaire   +2 more sources

Design and Fabrication of 25mm Diameter Axial Gradient Singlets

Gradient Index Optical Systems, 1994
Several F/3 single element axial gradient index lenses with a focal length of 75 mm have been fabricated and tested with emphasis being on performance and repeatability. The lens material was made via a fusion/diffusion process. This paper discusses the results of this endeavor.
Paul K. Manhart   +2 more
openaire   +1 more source

Flow through tubes with sinusoidal axial variations in diameter

AIChE Journal, 1979
AbstractAn iteration technique has been developed to solve the equations of motion for flow of an incompressible Newtonian fluid through a circular tube with a radius which varies sinusoidally in the axial direction. The iteration is essentially geometric; one proceeds from a solution for flow through a tube in which the wavelength of diameter change ...
J. A. Deiber, W. R. Schowalter
openaire   +1 more source

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