Purpose: To analyze and compare changes in refractive error according to different haptic intraocular lenses after cataract surgery.Methods: We retrospectively reviewed the medical records of 508 eyes 254 patients who underwent surgery both eyes, with MBI<sup>®</sup> SAL302AC (C loop lens [IOL]) used one eye Zeiss<sup>®</sup> CT ASPHINA509M (plate IOL) other. Using Barre...

Active shape model (ASM) statistically represents a shape by a set of well-defined landmark points and models object variations using principal component analysis (PCA). However, the extracted shape contour modeled by PCA is still unsmooth when the shape has a large variation compared with the mean shape. In this paper, we propose a regularized ASM (R-ASM) model for shape alignment. During trai...

Neuroanatomic phenotypes are often assessed using volumetric analysis. Although powerful and versatile, this approach is limited in that it is unable to quantify changes in shape, to describe how regions are interrelated, or to determine whether changes in size are global or local. Statistical shape analysis using coordinate data from biologically relevant landmarks is the preferred method for ...

Asymmetry in funnel plots may indicate publication bias in meta-analysis, but the shape of the plot in the absence of bias depends on the choice of axes. We evaluated standard error, precision (inverse of standard error), variance, inverse of variance, sample size and log sample size (vertical axis) and log odds ratio, log risk ratio and risk difference (horizontal axis). Standard error is like...

This paper describes a new technique for global shape improvement based upon features’ positions and geometrical constraints. It suggests a general incremental, framework whereby constraints can be added and integrated in the model reconstruction process, resulting in an optimal trade-off between minimization of the shape fitting error and the constraints’ tolerances. The objects treated are in...

BACKGROUND AND PURPOSE The Tada (ABC/2) formula has been used widely for volume assessment of intracerebral hematoma. However, the formula is crude for irregularly shaped hematoma. We aimed to compare the accuracy of the ABC/2 formula with open source software Slicer. METHODS Computed tomographic images of 294 patients with spontaneous intracerebral hematoma were collected. Hematoma volumes w...

Parametric spline models are used extensively in representing and coding planar curves. For many applications, it is desirable to be able to derive the spline representation from a set of sample points of the planar shape. The problem we address in this paper is to nd a cubic spline model to optimally approximate a given planar shape. We solve this problem by treating the control points which d...