نتایج جستجو برای: Densitometry
تعداد نتایج: 2765 فیلتر نتایج به سال:
PURPOSE This study evaluates the correlation between corneal densitometry and epithelial ingrowth (EI) after laser in situ keratomileusis (LASIK). METHODS Corneal densitometry of 3 patients who developed EI after LASIK was measured with the Oculus Pentacam. Corneal densitometry readings of each patient were obtained preoperatively and postoperatively after ingrowth was discovered. Densitometr...
Background and purpose: Osteoporosis is the most common metabolic bone disease. The aim of this study was to evaluate the effects of teriparatide on the incidence of fractures and bone density in postmenopausal women with osteoporosis. Materials and methods: A clinical trial was performed in all postmenopausal women aged 45-75 years old with osteoporosis attending a teaching hospital affiliate...
Nowadays, bone mass estimation, through imaging methods, is widely used in metabolic diseases diagnosis and treatment. One of these methods is called "optical densitometry" which estimates bone density by measuring the intensity of the transmitted light on different parts of a radiographic image. Digital radiography systems act similarly by determining grey levels of the image. The aim of this ...
Purpose To evaluate corneal transparency following accelerated collagen cross-linking (ACXL) in pediatric keratoconus. Design A prospective interventional case series. Methods This study included 47 eyes (25 patients), aged 9-14 years, with documented progressive keratoconus. After applying 0.1% riboflavin drops, ACXL was performed. Assessment included corrected distance visual acuity (CDVA...
PURPOSE To assess the repeatability and validity of lens densitometry derived from the Pentacam Scheimpflug imaging system. SETTING Eye Clinic, Queensland University of Technology, Brisbane, Australia. METHODS This prospective cross-sectional study evaluated 1 eye of subjects with or without cataract. Scheimpflug measurements and slitlamp and retroillumination photographs were taken through...
BACKGROUND Prostate cancer subjects with prostate-specific antigen (PSA) relapse who are treated with androgen deprivation therapy (ADT) are recommended to have baseline and serial bone densitometry and receive bisphosphonates. The purpose of this community population study was to assess the utilization of bone densitometry and bisphosphonate therapy in men receiving ADT for non-metastatic pros...
Concerns about bone health and potential fragility in children and adolescents have led to a high interest in bone densitometry. Pediatric patients with genetic and acquired chronic diseases, immobility, and inadequate nutrition may fail to achieve expected gains in bone size, mass, and strength, leaving them vulnerable to fracture. In older adults, bone densitometry has been shown to predict f...
Background Osteoporosis is a skeletal disorder characterised by compromised bone strength resulting in an increased risk of fracture. Although DXA the only technology that can be used for diagnostic classification osteoporosis according to WHO, computed tomography imaging (CT) densitometry spine has equal or superior ability predict vertebral fractures postmenopausal women. Therefore continued ...
Introduction: Osteoporosis is a multifactorial disease that leads to etiology leading to morbidity and economical disturbances. This study designed to evaluate the prevalence of osteoporosis in patients referred to Gorgan’s densitometry centers with respect to age, gender and BMI. Methods: In this descriptive-analytic study, from 3000 subjects referred to the densitometry centers of Gorg...
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