Thinning is an iterative object reduction technique for extracting medial curves from binary objects. During a thinning process, some border points that satisfy certain topological and geometric constraints are deleted in iteration steps. Parallel thinning algorithms are composed of parallel reduction operators that delete a set of object points simultaneously. This article presents 21 parallel...

purpose: to identify the postoperative surgical outcomes and the changes in deviation in patients treated by bilateral medial rectus (bmr) recession for small to large angle esotropia with a minimum follow-up of two years methods: in this retrospective and consecutive case series, we reviewed medical records of 130 patients who had recession surgery for correction of esotropia between 2001-2011...

purpose: to describe the clinical findings, preoperative radiologic findings and results of surgery in a patient with congenital bilateral hypoplasia of medial rectus muscle case report: a 50-year-old man presented with large angle incomitant horizontal deviation with marked deficit of adduction of both eyes. mri finding defined very thin medial rectus muscle. intraoperatively medial rectus mus...

In this short chapter, we introduce some of the objects that will be used throughout the thesis: the distance functions, projection functions and medial axes. We survey some known result concerning the local regularity of medial axis (eg. Hausdorff dimension, rectifiability), a few of which come from the semi-concavity of the distance function. The compilation of these results complements the s...

Let Sd be a d-dimensional simplex in Rd , and let H be an affine hyperplane of Rd . We say that H is a medial hyperplane of Sd if the distance between H and any vertex of Sd is the same constant. The intersection of Sd and a medial hyperplane is called a medial section of Sd . In this paper we give a simple formula for the (d − 1)-volume of any medial section of Sd in terms of the lengths of th...

alzheimer’s disease (ad) is a uniquely human disorder. although the pathogenesis of ad is not fully understood, growing evidence indicates that the deposition of beta-amyloid (aβ) and the local reactions of various cell types to this protein play major roles in the development of the disease. in the present study transgenic mice expressing mutant amyloid precursor protein (app) has been used. t...

the aim of this review article is to analyze the clinical effectiveness of total knee replacement (tkr) compared to unicompartmental knee replacement (ukr) in patients with medial unicompartmental osteoarthritis (muo) in terms of survival rates, revision rates and postoperative complications. the search engine was medline. the keywords used were: medial knee osteoarthritis. three thousand and n...

Schatzker type IV medial tibial plateau fractures have an unfavorable prognosis, likely due to the mechanism of injury (fracture-dislocation/subluxation type) and possibly due to the involvement of the posterolateral plateau, which is different from previously thought. The aim of this study was to propose a new subclassification of Schatzker type IV fracture patterns based on 2-dimensional (2-D...

purpose: to present an extraocular muscle disinsertion in a pterygium surgery case report: a 61-year-old woman presenting an acute diplophia after a nasal pterygium surgery. the medical rectus muscle was cut during the primary surgery which was immediately reported and the muscle was reinserted to its original site and recovery was more or less obtained. conclusion: anatomical consideration met...